Locke Tr 30 Users Manual Trailer Sprayer Operator's

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Trailer Sprayer

TR-30

Operators Manual

Locke Turf

307 Highway 52E, Opp, Alabama, 36467, (334) 493-1300

.CONGRATULATIONS

You have invested in the best implement of its type on the market today.

The care you give your Locke Turf implement will greatly determine your

satisfaction with its performance and its service life. We urge a careful

study of this manual to provide you with a thorough understanding of

you new implement before operating, as well as suggestions for opera-

tion and maintenance.

If your manual should become lost or destroyed, Locke Turf will be glad

to provide you with a new copy. Order from Locke Turf, 307 Highway

52E, Opp, Alabama 36467.

As and Authorized Locke Turf dealer, we stock genuine Locke Turf parts

which are manufactured with the same precision and skill as our original

equipment. Our trained service personnel are well informed on meth-

ods required to service Locke Turf equipment, and are ready and able to

help you.

Should you require additional information or assistance, please contact

us.

YOUR AUTHORIZED

LOCKE TURF DEALER

BECAUSE LOCKE TURF MAINTAINS AN ONGOING PROGRAM

OF PRODUCT IMPROVEMENT, WE RESERVE THE RIGHT TO MAKE

IMPROVEMENTS IN DESIGN OR CHANGES IN SPECIFICATIONS

WITHOUT INCURRING ANY OBLIGATION TO INSTALL THEM

ON UNITS PREVIOUSLY SOLD.

BECAUSE OF THE POSSIBILITY THAT SOME PHOTOGRAPHS

IN THIS MANUAL WERE TAKEN OF PROTOTYPE MODELS,

PRODUCTION MODELS MAY VARY IN SOME DETAIL. IN ADDITION,

SOME PHOTOGRAPHS MAY SHOW SHIELDS REMOVED FOR PUR

POSES OF CLARITY. NEVER OPERATE THIS IMPLEMENT WITHOUT

ALL SHIELDS IN PLACE.

TRAILER SPRAYER

Operator’s Manual

Table of Contents

SECTION

Warranty ………………………….2 4. Basic Operations ……….………...12

Federal Laws and Regulations ...3 Turf Application Guide …………….16

Dealer Preparation Check List …4 Field Adjustments ………………….19

1. Safety …………………………….5 General Operations ………………..21

Safety Decals …………………....7 5. Maintenance And Lubrication…..24

2. Introduction ……………………..8 Specifications……………………….26

3. Assembly and Set-up ………...10 Troubleshooting ……………………27

Torque Specifications ……………..34

RETAIL CUSTOMER’S RESPONSIBILITY

UNDER THE LOCKE TURF INC. WARRANTY

It is the Retail Customer and /or Operator’s responsibility to read the Operator’s Manual, to operate, lu-

bricate, maintain, and store the product in accordance with all instructions and safety procedures. Fail-

ure of the operator to read the Operator’s Manual is a misuse of this equipment.

It is the Retail Customer and/or Operator’s responsibility to inspect the product and to have any part(s)

repaired or replaced when continued operation would cause damage or excessive wear to other parts or

cause a safety hazard.

It is the Retail Customer’s responsibility to deliver the product to the authorized Locke Turf distributor

from whom he purchased it, for service or replacement of defective parts that are covered by warranty.

Repairs to be submitted for warranty consideration must be made within fort-five (45) days of failure.

It is the Retail Customer’s responsibility for any cost incurred by the Dealer for traveling to or hauling of

the product for the purpose of performing a warranty obligation or inspection.

UNDERSTAND SIGNAL WORDS

DANGER: Indicates an imminently WARNING: Indicates a potentially CAUTION: Indicates a potentially

Hazardous situation which, if not avoid- hazardous situation which, if not hazardous situation which, if not

Ed, will result in death or serious injury. Avoided, could result in death or avoided, may result in minor or

This signal word is to be limited to the serious injury. Moderate injury. It may also be

Most extreme situations. Used to alert against unsafe

Practices.

IMPORTANT FEDERAL LAWS AND REGULATIONS* CONCERNING

EMPLOYERS, EMPLOYEES AND OPERATIONS.

*(This section is intended to explain in broad terms the concept and effect of the following federal laws and regula-

tions. It is not intended as a legal interpretation of the laws and should not be considered as such.)

U.S. Public Law 91-596 (The Williams-Steiger Occupational and Health Act of 1970) OSHA

This Act Seeks:

“…to assure so far as possible every working man and woman in the nation safe and healthful

working conditions and to preserve our human resources…”

DUTIES

Sec. 5 (a) Each employer-

(1) shall furnish to each of his employees employment and a place of employment which are free

from recognized hazard that are causing or are likely to cause death or serious physical harm

to his employees;

(2) shall comply with occupational safety and health standards promulgated under this Act.

a. Each employee shall comply with occupational safety and health standards and all

rules, regulations and orders issued pursuant to this Act which are applicable to his

own actions and conduct.

OSHA Regulations

Current OSHA regulations state in part: “At the time of initial assignment and at least annually thereafter, the em-

ployer shall instruct every employee in the safe operation and servicing of all equipment with which the employee is

or will be involved.” These will include (but are not limited to) instructions to:

Keep all guards in place when the machine is in operations:

Permit no riders on equipment;

Stop engine, disconnect the power source and wait for all machine movement to stop before servicing,

adjusting, cleaning or unclogging the equipment, except where the machine must be running to be properly

serviced or maintained, in which case the employer shall instruct employees as to all steps and procedures

which are necessary to safely service or maintain the equipment.

Make sure everyone is clear of machinery before starting the engine, engaging power or operating the ma-

chine.

EMPLOYEE TRACTOR OPERATING INSTRUCTIONS:

1. Securely fasten your seat belt if the tractor has a ROPS 5. Watch where you are going especially at

row ends, on roads and around trees.

2. Where possible avoid operating the tractor near 6. Do not permit others to ride.

Ditches, embankments and holes.

7. Operate the tractor smoothly – jerky

3. Reduce speed when turning, crossing slopes and turns starts or stops

on rough, slick or muddy surfaces . 8. Hitch only to the drawbar and hitch

4. Stay off slopes too steep for safe operation . points recommended by tractor

manufacturers

9. When tractor is stopped, set brake

securely and use park lock if available

Child Labor Under 16 Years Old

Some regulations specify that no one under the age of 16 (sixteen) may operate power machinery. It is your re-

sponsibility to know what these regulations are in you own area or situation. (Refer to U.S. Dept, of Labor, Employ-

ment Standard Administration, Wage & Home Division, Child Labor Bulletin #102.)

3

DEALER PREPARATION CHECK LIST

Trailer Sprayer

BEFORE DELIVERING MACHINE- The following check list should be

completed. Use the Operator’s Manual

as a guide.

 1. Assembly completed.

 2. All Appropriate locations lubricated.

 3. All shields in place and in good condition.

 4. All fasteners torqued to specifications given in Torque Chart.

 5. All decals in place and readable. (See decal page.)

 6. Overall condition good (i.e. paint, welds)

 7. Operator’s manual has been delivered to owner and he has been instructed on the

safe and proper use of the trailer sprayer.

Dealer’s Signature______________________________________________________

Purchaser’s Signature___________________________________________________

THIS CHECKLIST IS TO REMAIN IN OWNER’S MANUAL

It is the responsibility of the dealer to complete the procedures listed

above before delivery of this implement to the customer.

4

For your safety and to develop a better understanding of

your equipment, thoroughly read the Operator’s Sections

of this manual before operation.

Safety Notations

The safety alert symbol indications that there is a poten-

tial hazard to personal safety involved and extra safety

precautions must be taken. When you see this symbol,

be alert and care fully read the message that follows it.

In addition to design and configuration of equipment; haz-

ard awareness, concern, prudence and proper training of

personnel involved in the operation, transport, mainte-

nance and storage of equipment.

Watch for the following Safety Notation

throughout your Operator’s Manual:

Indicates an imminently hazardous situation which, if not

avoided, will result in death or serious injury. This signal

word is limited to the most extreme situations.

Indicates a potentially hazardous situation which, if not

avoided, could result in death or serious injury.

Indicates a potentially

hazardous situation which, if not avoided, may result in

minor or moderate injury. It may also be used to alert

against unsafe practices.

Safety Rules

These rules and instructions

must be reviewed at least annually

by all operators!

Most accidents are the result of negligence and careless-

ness, caused by failure of the operator to follow safety

precautions Even though your implement has been de-

signed with built-in safety features, the following precau-

tions are mandatory to prevent such accidents.

Make sure everyone that uses this machine has read the

Operator’s Manual and understands how to operate it

safely.

This Operator’s Manual is considered a part of the imple-

ment and should remain with it when loaded or sold.

Prior to Operation

1. Do not allow anyone to operate this machine who

has not been properly trained in its safe operation.

2. Never leave your fill hose attached to the sprayer

after filling the tank. Although your sprayer is

equipped with an anti-siphon device, if the vent holes

are covered or become plugged, siphoning can oc-

cur. Chemicals in the tank can siphon out of the tank

DANGER

WARNING

CAUTION

3. Use only water to calibrate and test the sprayer.

4. Always check the hand wash tank before taking the

sprayer to the field to be sure it is filled with clean

water.

5. Do not transport sprayer (by loading the vehicle and

sprayer on a trailer or other vehicle) when the tank is

filled with chemicals.

6. Agricultural chemicals can be dangerous. Always

select the correct chemical for the job. Improper us-

age of fertilizers, fungicides, herbicides, insecticides

and pesticides could cause injury to all living things.

7. Always real instructions supplied by the manufactur-

ers before opening chemical containers. Read and

follow instructions supplied by the chemical manufac-

turer carefully before each use.

8. Inform anyone who may come in contact with chemi-

cals or an implement with chemicals of any potential

hazards or safety precautions that should be ob-

served.

9. Store or dispose of all unused chemicals as specified

by the chemical manufacturer.

10. Always wear personal protective equipment. Refer to

“Personal Safety Equipment” section on page 3.

11. Always read chemical labels before using.

During Operation

1. Always be aware of any people that may be in the

area. Players, other maintenance personnel and

others may be on the course. It is the operator’s re-

sponsibility to operate the sprayer and vehicle in a

safety manner!

2. Never dismount from a moving vehicle.

3. Do not leave the vehicle unattended with the engine

running.

4. Do not exceed the calibrated spraying speed and

pressure when operating sprayer.

5. Spray only with acceptable wind conditions, below 5

mph. Carefully note outlying areas of the area to be

sprayed. Make sure wind drift of chemicals will not

affect any surrounding property, people or animals.

6. Be alert to traffic when crossing or operating near

roadways. Always maintain complete control of the

machine. Know your state and local laws concerning

highway safety and regulations. Comply with these

laws when driving the sprayer on any public thor-

oughfare.

7. Do not exceed 20 mph. Drive slowly over rough ter-

rain and use caution when traveling over hilly areas,

especially when the tank is full.

This sprayer can be dangerous and can cause bodily

harm if not properly used or guarded. Stay away from the

pump, drive shaft, electric clutch and drive belt when in

operation.

After Operation

1. Never wash the sprayer tank out within 100 feet of

any fresh water source or in a car wash. Dispose of

leftover chemical in the manner described on the

manufacturers’ label of the chemical used in the

sprayer. Rinse out the tank and spray the rinse water

on the last field that was sprayed.

WARNING

5

2. Do not ward contaminated clothing. Wash protec-

tive clothing and equipment with soap and water

after each use. Personal clothing worn during use

must be laundered separately from household arti-

cles. Clothing heavily contaminated with certain

crop protectant agents (read the label), must be

destroyed according to state and local regulations.

3. Wash your hands and face before eating when

working with chemicals. Shower as soon as you

have completed your spraying for the day.

During Maintenance

1. Keep all guards and shields in place. If removed for

repair or adjustment, replace them before operating

sprayer. If the sprayer is left with guards removed,

tag the unit so it is not used by others until it is re-

paired.

2. Before working on, servicing or making adjustments

on the sprayer, always disengage power, shut off

engine, make sure all moving parts have stopped

and all pressure in the system is relieved.

3. Do not work on the hoses, nozzles or plumbing

components (with the exception of the throttling

Valve) while the pump is running or the hoses are

pressurized. Shut off the pump and release sys-

tem pressure by turning the boom section

switches on before working on individual compo-

nents.

4. Do not grease or oil implement while it is in use.

5. After repairing or adjusting, make sure all tools

have been removed from the implement before

attempting to operate it.

6. Never use or store chemicals where children or

pets could be exposed.

Do not touch the sprayer components with your mouth

or lips. Never start a siphon hose by mouth. Chemical

ingestion can lead to illness and if untreated, death. If

the chemical is swallowed, carefully follow the chemi-

cal manufacturer’s recommendations and immediately

consult your doctor.

7. If you are exposed to a chemical in a way that could

affect your health, contact a physician immediately

with the chemical label or container in hand. Any de-

lay could cause serious illness or death.

WARNING

Personal Safety Equipment

Locke Turf advises all users of chemical pesticides or

herbicides to use the following personal safety equip-

ment. Always follow the chemical label instructions; your

safety and the effectively of the product depends upon

your actions.

Waterproof, wide-

brimmed hat.

Face shield, goggles or full

face respirator. Goggles

with side shields or a full

face respirator is required if

handling or applying dusts,

wettable powders or gran-

ules or if being exposed to

spray mist.

Waterproof apron.

Waterproof boots or foot

coverings.

Waterproof, unlined

gloves. Neoprene gloves

are recommended.

Cartridge-type respirator

approved for pesticide vapors

unless label specifies another

type of respirator.

Cloth coveralls/ outer clothing

changed daily; waterproof

items if there is a chance of

becoming wet with spray.

6

DANGER

POSSIBLE CHEMICAL HAZARD

Some chemcials can cause serious burns,

lung disease and even death.

To avoid:

READ AND FOLLOW CHEMICAL

MANUFACTURER'S INSTRUCTIONS.

Avoid contact with skin or eyes. Wear

proper protective equipment as required by

chemical manufacturer.

Avoid prolonged breathing of chemical fumes.

Wear respirator as required by chemical

manufacturer.

Seek medical assistance immediately if

accident occurs.

Maximum inflation pressure of tires is 30 psi.

Torque wheel bolts to 75 lb-ft.

Inflation or Torquing of Wheel Bolts:

To Avoid Injury or Machine Damage from Improper Tire

CAUTION

50022584

CAUTION

To Avoid Injury or Machine Damage

Read and understand owner's manual before operating sprayer.

Always read chemical labels BEFORE using.

Properly store chemical emptied from the tank or dispose of it by

the recommendations on chemical manufacturer's label.

Fasten appropriate fold pins when booms are folded.

Never allow riders.

Escaping hydraulic fluid can cause serious injury when equipped

with hydraulic components.

50022582

50022583

SAFETY DECALS

Your sprayer comes equipped with all safety de-

cals in place. They were designed to help you

safely operate your sprayer. Read and follow

their directions.

1. Keep safety decals clean and legible.

2. Replace all damaged or missing safety de-

cals. To order new safety decals go to you

Locke Turf Dealer.

3. General Decal Application: Replace theses

decals whenever they become worn or un-

readable. To install new safety decals:

a. Clean the area the decal is to be

placed.

b. Peel backing from the decal.

Press firmly onto surface being

careful not to cause air bubbles

under the decal.

7

Locke Turf welcomes you to the growing family of

new product owners. This implement has been de-

signed with care and built by skilled workers using

quality materials. Proper assembly, maintenance and

safe operating practices will help you get years of

satisfactory use from the machine.

Description of Unit

The Locke Turf TR-20 and TR-30 trailer sprayers are

tow behind units designed to be pulled by tractors or

large utility vehicles.

The sprayers are equipped with 200 or 300 gallon

polyethylene tanks.

A variety of booms are available to be used with the

trailer sprayers, either electric or manual lift controls,

wet or dry booms.

The TR models are equipped with Hy Pro PTO

pumps or optional engine drive Hy Pro pumps.

A selection of controls, either Tee Jet 744 economy

control or Tee Jet 844A deluxe controls are available

for these sprayers.

An electrically operated pressure control valve and

three solenoid-type directional control valves control

the flow of liquid between the tank and the three

boom sections. Excess system pressure returns liq-

uid to the tank for continuous agitation through the

bypass section of the solenoid valves (on standard

control units only). The liquid is constantly filtered

through an in-line Tee Jet filter.

Features Include:

• Heavy duty frame built from 14 gauge formed steel.

• Rugged, low profile 200 or 300 gallon polyethylene

tank.

• A two inch diameter anti-siphon fill kit with anti-spill

knife gate valve and fill tube extending to the bottom of

the tank to prevent foaming.

• Hy Pro pump with air blow-out valve to easily clean

plumbing lines and purge plumbing system for winter

storage.

• Tee Jet nozzle bodies.

• In-Line Tee Jet filter.

• Electric pressure regulating valve (Standard control

units only).

• Electrically-operated three-way solenoid directional

control valves with throttling valves to maintain con-

stant spraying pressure when one or two sections of

the boom are shut off (Standard control units only).

• Agitation line pressure gauge to monitor the fourport

hydraulic staniless steel agitator head.

• Control box with Master, Pressure Adjust and

Boom Section control switches, with mounting

bracket for attachment or Magnetic Gauge

Mount Assembly.

• A 3-1/2” glycerine-filled pressure gauge in 2

lb. Increments to 100 PSI and stainless steel

oil-filled Gauge Protector attaced on a Mag-

netic Gauge Mount.

Available Options Include:

• Deluxe Tee Jet Control and Monitor.

• Foam Marker Assembly

• Hose Reel (electric or manual)

• Walker Boom

• Hand Gun

Contact your Locke Turf dealer to purchase any of

these options.

Using this Manual

This Operator’s Section is designed to help

familiarize you with safety, assembly, opera-

tion, adjustments, trouble-shooting and main-

tenance. Read this manual and follow the

recommendations to help ensure safe and

efficient operation.

NOTE

The warranty sheet should be filled out by the

owner and dealer at the time of purchase.

After completion give the dealer the white

copy and send the pink copy to Locke Turf.

Keep your copy in the manual for use when

corresponding with the dealer.

To order a new Operator’s or Parts Manual

contact your authorized dealer or write to the

address listed below in the Owner Assistance

paragraph. Include the model and serial

numbers of your unit.

The information contained within this manual

was current at the time of printing. Some

parts may change slightly to assure you of

the best performance.

Terminology

“Right” or “Left” as used in this manual is deter-

mined by facing the direction the machine will

travel while in use unless otherwise stated.

NOTE: A special point of information related to its

preceding topic. Read and note this information

before continuing.

IMPORTANT: Information, related to its proceed-

ing topic, that the author feels would be of use.

8

Owner Assistance

If customer service or repair parts are required

contact your local Locke Turf dealer. They have

trained personnel, repair parts and the equipment

needed to service your implement.

These parts have been specially designed and

should only be replaced with genuine Locke Turf

parts.

Serial Number Plate - Refer to the Figure below

for the location of your serial number plate. For

prompt service always use the serial number and

model number when ordering parts from you

Locke Turf dealer. Be sure to include your serial

number and model number in correspondence

also.

Your dealer wants you to be satisfied with your

new machine. If for any reason you are not

Satisfied with the service received, the following

actions are suggested:

1. First, discuss the matter with your dealership

service manager. Make sure he is aware of

any problems you may have and that they have

had the opportunity to assist you.

2. If you are still not satisfied, seek out the owner

or General Manager or the dealership and ex-

plain the problem and request assistance.

3. For further assistance beyond that provided by

your dealer, you may contact:

Locke Turf Inc. - Customer Service

307 Highway 52E

Opp, AL 36467

www.locketurf.com

9

Assembling The Sprayer

Tools and Equipment Needed:

• Hoist or Floor jack rated for at least 2,000 lbs.

• SAE wrenches

• A helper to assist in moving the sprayer

Refer to Figure 1-1

Mounting the Control Box

Refer to Figure 1-2

The magnet mount should be attached to a con-

venient location on the towing vehicle (fender,

hood, etc.).

10

11

This section describes the workings of the

sprayer components and provides guidelines on

their use. More detailed information can be found

in Preparing the Sprayer in “General Operations”

section starting on page 21.

Basic Sprayer Operating Guidelines

1. Make sure to read the label on the chemical

compound that is to be applied; it is the law!

2. Consider how the chemical will be stored and

how you will dispose of the chemical, accord-

ing to the chemical label. Planning in ad-

vance may save much trouble later.

3. When calibrating, filling the tank or working

around chemicals, wear protective clothing

that covers the body. Refer to Personal

Safety Equipment in the “Important Safety

Information” section. Have soap and clean

water available to wash any exposed areas.

Never open a container with your bare hands.

4. Fill the hand wash tank on the sprayer with

fresh water before handling any chemicals.

5. Fill the sprayer and mix the chemicals at an

appropriate mixing site.

6. By law, you must repeat the rinsing of the

chemical container three times. The con-

tainer should then be punctured to prevent

future use. An alternative is to jet-rinse or

pressure rinse the container.

IMPORTANT: Any washing or mixing that pro-

duces contaminated liquid should take place at

an appropriate mixing site. Chemically contami-

nated liquid should be captured in a holding tank

for proper disposal and not be allowed to run off

where it may contaminate fresh water sources.

7. Check the condition of hoses and connections

frequently. Release system pressure before

working on the sprayer by shutting off the pump

and flipping the individual boom section switches

on the control box. Always wear rubber gloves

when making repairs or adjustments to the

spraying components.

8. If your sprayer boom is equipped with a level-

float pin, remove it before operating the

sprayer. The boom will float over the con-

tours of the ground more effectively and mini-

mize stress on the boom.

9. Apply spray when the wind is 5 mph or less.

Minimize drift by using nozzle tips with the

largest practical openings and by operating

the sprayer boom at the lowest practical pres-

sure.

10. Drive at the same speed you used in your

calibration. Refer to Miles Per Hour Calibra-

tion in the Tee Jet manual.

11. If possible work crosswise to the wind, start-

ing from the downwind side of the area to be

sprayed. Do this so you won’t ever be head-

ing directly into chemical fumes.

12. As you operate the sprayer, be aware of all

things that may be affected by the chemicals,

such as adjoining property, houses, gardens,

people, etc. Do not operate the sprayer if

damage can occur.

13. When you are finished spraying, empty the

tank and flush the sprayer with water, includ-

ing the pump, the nozzles and the bypass line

form the solenoids. Properly store the chemi-

cal emptied form the tank or dispose of it by

the recommendations on its label.

14. When turning at the end of a run, make sure

that the boom will not overlap on areas previ-

ously sprayed.

Plumbing Operations

(Manual Control System Only)

Refer to Figure 2-1

An understanding of how the sprayer works will

help you to operate your Locke Turf Sprayer.

The basic operation of the sprayer as follows.

12

13

Fluid is drawn out of the tank sump and passes through

the pump. From the pump the solution passes through

the filter and filters out or grinds up most undissolved

chemical and solid particles. The fluid then passes

through the agitation valve and returns to the tank via

the agitator head or proceeds through the pressure con-

trol valves. If the fluid passes through the electric pres-

sure control valve, it proceeds to the 3-way solenoid

valves. If a solenoid is on, its coil is energized and the

connected valve is open. The fluid will pass through the

valve and travel to the specific boom section (left, center

or right) and is delivered to the area to be treated

through the sprayer boom nozzles. If the particular

switch is off, the solenoid is de-energized and the con-

nected valve is closed. In this case, the fluid travels

through the bypass and returns to the tank sump.

You can monitor the nozzle pressure gauge and adjust

the pressure to the booms by adjusting the pressure

adjust switch on the control box. The pressure adjust

switch operates the electric pressure control valve. To

set this valve, see Pre-setting the Pressure Control

Valves in the next column. This will decrease the

amount of flow to the electric pressure control valve and

reduce its sensitivity.

There are tank shut off valves at every tank outlet so

that if there is a leak, the contents of the tank can be

secured and a chemical spill avoided. These valves

(except for the tank drain valve) need to be fully open

when the sprayer is in use.

Pressure Adjustment Valves

NOTE:

Refer to Sprayer Parts Manual if you need help identify-

ing specific sprayer components.

The plumbing system is equipped with two pressure ad-

justment valves, electric and manual. The two valves

work together and understanding how they work is im-

portant to proper sprayer operation.

The Electric Pressure Control Valve

The primary purpose of this valve is to allow the opera-

tor to adjust boom pressure while spraying. The electric

pressure control is a 12 volt DC operated butterfly type

valve. It is controlled by the pressure adjust switch on

the control box. When the switch is engaged, electric

current travels through the gearbox controlling the valve,

saucing the butterfly mechanism to move. The valve

has no stops and can be adjusted a full 360 degrees.

The Manual Pressure Control Valve

The main purpose of this valve is to reduce the sensitiv-

ity of the electric pressure control valve so that small

movements of the butterfly valve mechanism won’t re-

sult in uncontrollable changes in boom pressure. With-

out the manual pressure control valve, toggling the pres-

sure adjust switch just a few times will result in fast pres-

sure changes in boom pressure, adversely affecting ap-

plication rates. This manual valve restricts the amount

of flow to the electric pressure control valve, thus nar-

rowing the range of pressure.

Pre-setting the Pressure Control Valves

(Manual Control Systems Only)

NOTE:

Before beginning this procedure make sure your throt-

tling valves are adjusted. Refer to Calibrating the Throt-

tling Valves in General Operations starting on page 19.

To adjust the pressure control valves and achieve a de-

sirable adjustment range at the control box, do the fol-

lowing:

1. Open the electric control valve (by toggling the pres-

sure switch at the control box) until the valve is fully

open.

2. Turn the boom sections off so that the liquid is trav-

eling through the bypass line and retuning to the

tank.

3. Operate the pump at the same RPM you would

when spraying.

4. Adjust the manual pressure control valve until the

boom pressure as indicated on the pressure gauge

by the control box is 10 to 20 PSI greater than the

maximum application pressure.

The Drive Pump

IMPORTANT: The Hy Pro pump supplied with your

sprayer is not designed for use with every application.

Materials containing solvents, paints or solutions con-

taining abrasives will damage the pump. If you are un-

sure of you chemicals, consult your dealer for suitability

of your application.

IMPORTANT: Always use the MASTER on/off switch to

control spraying action.

PTO Drives

The pump on this type of drive is powered by the vehi-

cle’s PTO shaft. The PTO shaft is manually operated by

the driver and once engaged, turns regardless of gear

selection. The speed of the PTO is directly proportional

to engine speed. Higher engine RPM results in higher

PTO (and pump) speed, and ultimately higher system

pressure (70 lbs. PSI Max.) for spraying.

14

IMPORTANT: Do not use the vehicle’s PTO con-

trol to control the spraying action. When the PTO

is disengaged, the pump stops turning, all agitation

of the chemical stops and the sprayer loses system

pressure. Use the MASTER on/off switch of the

boom section switches to control spraying action.

Anti-Siphon Fill Assembly

When filling the sprayer tank, make sure that

the anti-siphon holes in the side of the tube are

clear and open. The anti-siphon device pre-

vents the solution in the tank form infiltrating

into the fresh water source and contaminating

it.

Your Locke Turf Sprayer tank is filled form the top

through a standard 1-1/2” Cam-Lock coupler.

1. To fill the tank, first make sure that the tank

drain valve is closed. Open the knife valve on

the fill assembly.

2. Connect the fresh water hose to the quick-fill

camlock coupler. Make sure that the anti-

siphon holes in the side of the fill tube are clear

and open.

3. Turn the water on and fill the tank. Do not al-

low the tank to fill unattended. When filled,

close the knife valve.

4. Clean and fill the handwash tank.

Adding Chemicals to the Tank

Read the manufacturer’s label carefully before

handling chemicals. When you add the chemi-

cal, follow the manufacturer’s instructions for

mixing the spray solution in order to achieve

the desired application rate. Always wear re-

quired protective gear.

1. Before adding chemical to the tank, make sure

the tank is at least half full and the pump and

agitation is operating. The concentrate should

not be poured into an empty tank as this may

clog the tank lines.

2. Keep the spray solution form skin. Wear pro-

tective clothing and goggles. If the solution

comes in contact with the body, wash off the

contaminated area with soap and water.

3. Keep chemical containers low when pouring.

4. Do not smoke while handling chemicals.

CAUTION

CAUTION

Using Handwash Tank

In the event when an accident occurs and chemical

comes in contact with skin or eyes, use the hand-

wash tank to flush away the chemical.

1. Open the tank valve and use the hose to direct

the clean water on all contaminated areas.

Wash all areas of skin that have been contami-

nated with soap and water. To flush out eyes,

point the hose and water stream upward while

lowering eyes into the stream of following wa-

ter.

2. Close the tank valve and refill the handwash

tank with fresh water.

3. Clean and refill the handwash tank with fresh

water each time the sprayer is used. Always

keep the handwash tank clean.

Operating the Filter

Your Locke Turf Sprayer is equipped with a Tee Jet

filter to remove unwanted particles from the systme

and prevent the hoses from becoming clogged.

The filter is located on the output line of the cen-

trifugal pump and before the manual pressure ad-

justment valve. It filters the chemical solution being

sprayed.

To clean out the filter, unscrew the main body, re-

move screen and clean with clear water.

Driving and Parking

1. Park your sprayer in an area where you will not

hit power lines, building, etc. when boom is

folded.

Contact with electrical power lines can cause

death by electrocution.

2. Don’t leave the sprayer unattended in an area

where unauthorized persons may tamper with

the sprayer, tank contents or controls.

3. Don’t leave a filled sprayer without tagging or

somehow identifying the contents. Someone

may mistake a chemical filled tank for water

and spray unwanted areas. Do not exceed 20

mph transporting your sprayer.

4. Do not unnecessarily transport sprayer while

filled with chemical mixture.

DANGER

15

Sprayer Pre-Calibrations

General Guidelines

1. Wear proper protective clothing as described

in Personal Safety Equipment on page 6.

2. From the chemical manufacturer’s label and

field conditions, select a spray application

rate and an operating speed.

IMPORTANT: If you are unsure of what you are

doing, get help. Do not guess at application

rates.

3. Be familiar with the type of chemical you are

using. Completely read the label before start-

ing.

4. Have all equipment ready before starting your

sprayer calibrations.

5. Make sure all spray parts are free from for-

eign material and are functioning properly.

Carefully inspect nozzles and internal parts

for wear, defects, proper size and type.

6. Fill spray tanks with water at least one quar-

ter full and preferably half full.

7. Use only water to calibrate the sprayer.

8. With the sprayer stationary, operate the pump

at the desired spraying pressure. Check for

leaks and improper spray patterns form the

nozzles.

9. Read the following pages to determine which

method of calibration you will use and have a

clear understanding of how the procedure

works.

Calibration Method #1

This method calibrates the sprayer and checks to

make sure the nozzles are within specifications.

1. Select your desired application rate, either in

gallons per thousand square feet of gallons

per acre.

2. Select you desired gear or RPM setting for an

appropriate spraying speed. Calibrate your

speed to verify that the vehicle’s speedome-

ter is accurate. Refer to the following table

Miles Per Hour Calibration for calibration val-

ues.

3. Find your desired application rate in the noz-

zle chars in this section. For every applica-

tion rate there will be at least two nozzles that

will yield the desired application. For applica-

tions that require foliar coverage, select the

nozzle requiring higher pressure. This will

produce smaller droplets. For less drift of for

chemicals that need to reach the oil surface,

select the nozzle that uses lower pressure.

This will produce larger droplets. For exam-

ple, your desired gallon per thousand square

feet (GPT) application rate is 1.01 GPT at 4

miles per hour. Refer to the nozzle charts in

the Tee Jet manual.

4. Find the ounces per minute output for the

nozzles to be used. See the Tee Jet manual.

5. With water in the sprayer, catch the nozzle

output at the desired pressure for one minute.

For large nozzles, catch the output for 30

seconds and multiply the amount by two.

6. If the nozzle is not within the ± limit, check for

obstructions or wear in the orifices of the noz-

zle. Take the cap off the nozzle, clean the

orifices with a toothpick or brush and retest.

If several nozzles test the same, but are not

within ± limits, a faulty gauge may be the

problem. If two or more nozzles are outside

the limit, it is a good indication that all of your

nozzles may be warn. In this case, it would

be advisable to replace all the nozzles with

new nozzles.

Miles Per Hour Calibration

To determine true ground speed use the following

table Miles per Hour Calibration, with the sprayer

half-filled with water.

When measuring the speed of your vehicle, al-

ways simulate current spraying conditions as

close as possible.

Miles Per Hour Calibration

mph Seconds mph Seconds

to Travel to Travel

200 feet 200 feet

2.5 55 7.0 19

3.0 45 8.0 17

3.5 39 9.0 15

4.0 34 10.0 14

4.5 30 11.0 12.5

5.0 27 12.0 11.5

6.0 23

16

Calibration Method #2

This method calibrates the sprayer, but does not

check for worn nozzles.

This method gives you the distance driven to cover

1/128 acre (because there are 128 ounces per gallon).

The time required to drive that distance is measured

first and then volume of spray in ounces caught in the

time you measured is your application rate in gallons

per acre. From the chart below, determine the dis-

tance to drive in the field (three runs are suggested) to

obtain your average time in seconds.

1. Determine your nozzle size, spacing (20” is stan-

dard on all Locke Turf Booms) and pressure to

achieve your desired rate from the flow charts on

the following pages.

2. Measure the nozzle spacing on your boom and

determine the distance to dive to calibrate your

sprayer.

3. Mark off the distance with two markers and time

how many seconds it takes to drive this distance

at the desired spraying speed. Make sure you are

at spraying speed when you cross both marks.

Two or more runs are suggested with the sprayer

half full.

4. With the sprayer filled with water (no chemical

added). Park in an appropriate area with the

booms unfolded. Prepare to collect samples at

the individual nozzles. Turn on the pump and run

it at the operation pressure. If applicable, cor-

rectly set the solenoid throttling valves. Refer to

Calibrating the Throttling Valves in “General Op-

erations” section starting on page 21. Flip on the

boom section switch on the control box and catch

the water being sprayed out of the nozzle you are

calibrating.

5. Measure the volume of the sample in ounces over

the time it took to travel the distance in step #3.

The number of ounces caught is the exact number

of gallons per acre you will apply with that nozzle.

Distance for Each Nozzle to Spray 1/128 Acre

Average Average

Nozzle Distance Nozzle Distance

Spacing (Feet) Spacing (Feet)

(Inches) (Inches)

6 681 22 186

8 510 24 170

10 408 30 136

12 340 36 113

14 292 38 107

15 272 40 102

16 255 42 97

18 227 48 85

20 204

Calibration Method #3

To double check the accuracy of your sprayer, the fol-

lowing instructions provide another method of calibra-

tion:

1. Measure 200 feet and determine the number of

seconds required to travel this distance under field

conditions with implements in working condition.

2. Place graduated container or pre-weighed con-

tainer under one nozzle and catch the discharge for

1 minute. Divide 128 into the number of fluid

ounces caught. 128 fluid ounces equals one gal-

lon. EXAMPLE: 1 nozzle every 20” (standard for

all turf booms).

EXAMPLE:

Gallons per acre = 5940 x Gallon per minute

Nozzle spacing in inches x

Miles per Hour

GPA = 5940 x .50

20 x 5

GPA = 2970

100

GPA = 29.7

The above information will assure you of a check for

accurate application in the event there is an error in the

gauge nozzle spacing, nozzle height, vehicle speed or

nozzle wear.

Useful Formulas & Conversions

GPM TO OPM CONVERSIONS

GPM (GALLONS PER MINUTE) X 128 = OPM (OUNCES PER MINUTE)

EXAMPLE: 0.5 GPM X 128 = 64 OPM

OPM O GPM CONVERSIONS

OPM (OUNCES PER MINUTE) ÷ 128 = GPM (GALLONS PER MINUTE)

EXAMPLE: 32 OPM ÷ 128 = 0.25 GPM

AREA COVERAGE

A 20’ WIDE BOOM (STANDARD FOR TURF SPRAYERS) COVER

2.4 ACRES PER 1 MILE OF TRAVEL

GALLONS PER HOUR TO GALLONS PER MINUTE CONVERSION:

GPM = GPA x MPH x W*

5940

W* = NOZZLE SPACING IN INCHES

GALLONS PER MIINUTE TO GALLONS PER HOUR CONVERSION

GPA = 5940 x GPM (PER NOZZLE)

MPH x W*

W* = NOZZLE SPACING IN INCHES

17

Spraying Solutions Other Than Water

The calculations in this section are based on spray-

ing water, which weighs 8.34 pounds per U.S. gal-

lon. The conversion factors in the table must be

used when spraying solutions which are heavier or

lighter than water. In order to determine the proper

size nozzle for the solution to be sprayed, multiply

the desired GPM or GPA of solution by the water

rate conversion factor. Then use the new con-

verted GPM or GPA rate to select the proper size

nozzle.

Density Conversion Table

Weight of Solution Conversion

Solution Specific Factor

(lbs./Gal.) Gravity

7.00 .84 .92

7.50 .90 .95

8.00 .96 .98

8.34 (Water) 1.00 1.00

8.50 1.02 1.01

9.00 1.08 1.04

9.50 1.14 1.06

10.00 1.20 1.10

10.50 1.26 1.12

10.65 (Nitrogen 28%) 1.28 1.13

11.00 1.32 1.15

11.50 1.38 1.18

12.00 1.44 1.20

14.00 1.68 1.30

EXAMPLE Calculation for spraying nitrogen:

It is desired to apply 34 GPA (gallons per acre) of

nitrogen in 20” rows. (28% N, density if 10.65 ib/

gal from the chart above)

From the Density Conversion Table, we find the

conversion factor for 28% nitrogen is 1.13.

GPA (Solution) x Conversion Factor = GPA

(34 gal/acre) (1.13) = 38.42 gal/acre on the

nozzle charts.

18

Boom Height

The boom height should be 24” as measured from the

nozzle to the ground surface. This is the standard

boom height for all turf booms. This distance is set dur-

ing assembly and should not be changed. Any change

in this height will affect the spraying coverage. At a

boom height of 24” the overlap of the nozzles is 100%.

Tank Straps

The tank straps that wrap around the sprayer tank may

become loose after the first few hours of operation.

This occurs when the tank settles in the saddle. Poly-

ethylene tanks are especially susceptible to this. Re-

tighten the tank straps to secure tank.

Pump Mount

Check the hardware mounting the pump to the sprayer

frame after the first few hours of operation. Tighten if

necessary.

Solenoids & Throttling Valves

(Manual Control System Only)

The electrical solenoids used to turn on the individual

boom sections are three way valves. These valves

route the product flow to the boom sections or back to

the tank sum, depending on whether the boom section

switches on the control box are turned on or off.

When a boom section switch is turned to the off posi-

tion, the electric solenoid is de-energized and the valve

is closed, diverting the flow back into the tank sum. To

insure that the flow going to the boom section and the

flow going back to the tank’s sump are the same, a

throttling valve is used to adjust the flow returning to

the suction inlet of the pump. If the throttling valves are

not set equally, their flows are not equal and every time

the boom section switch is flipped, the pressure will

either rise or decrease in the other boom sections,

causing the sprayer to over or under apply chemical in

those boom sections.

To set the three solenoid throttling valves, refer to Cali-

brating the Throttling Valves in “General Operations”

section starting on page 21.

Pressure Adjustments

(Manual Control System Only)

One fo the most important areas of controlling the

sprayer accuracy is to have the proper pressure when

spraying. Refer to Pre-setting the Pressure Control

Valves in “General Operations” section stating on

page 21.

The pressure is determined when the sprayer is cali-

brated. Refer to Calibration Method #1 in the “Turf

Application Guide” section starting on page 16.

The electric pressure control valve is used to adjust the

pressure to the booms. It is controlled with the

Pressure adjust switch on the control box. The boom

pressure is displayed by the boom pressure gauge. To

adjust the pressure, hold the pressure adjust toggle

switch up for more pressure, down for less pressure.

When the manual pressure adjustment valve is fully

opened, the pressure adjust switch is very sensitive.

To decrease the sensitivity of the pressure adjust. Set

the manual pressure adjustment valve.

To set the manual pressure adjustment valve, fully

open the electric pressure control valve with the pres-

sure adjustment switch. Close the manual pressure

adjustment valve so the pressure is about 20 psi

greater than the desired application pressure. With this

valve set, it will decrease the flow through the electric

pressure control valve and reduce the sensitivity of the

pressure adjustment switch.

Solenoid Valve Adjustment

Refer to Figure 4-1:

NEVER REMOVE THE THROTTLING VALVE FROM

THE VALVE BODY WITH CHEMICAL IN THE

SPRAYER. DOING SO WILL CAUSE A CHEMICAL

SPILL AND WILL EXPOSE YOU TO THE CHEMI-

CALS, CAUSING PERSONAL INJURY AND DAM-

AGE TO SURROUNDING VEGETATION AND/OR

PROPERTY.

The solenoid valves must be properly adjusted in order

for the valve to stay open for long periods of time while

spraying. Also, if the solenoid is out of adjustment, the

valve may leak through the bypass port.

If sections of the boom switch off by themselves during

spraying and the coil (#1) is hot, the valve is out of ad-

justment. This can be corrected by adjusting the arma-

ture stop.

Valve Adjustment Procedure

1. Make sure that the Boom Control Switches are in

the “off position before continuing.

2. Loosen the jam nut (#2) with a box-end wrench.

3. While holding Jam Nut #2, turn the armature stop

(#3) clockwise with a large standard screwdriver

1/4 turn.

4. Now turn on corresponding switch and listen for a

“click” indication coil is energized.

5. Repeat step 4 until a “solid” contact sound is heard.

This adjustment is necessary only if you have prob-

lems with the solenoid.

6. After adjustment is made, tighten jam nut.

19

20

General Notes for Field Operation

1. Lubricate the sprayer as needed. Refer to “

Maintenance and Lubrication” section start-

ing on page 24.

2. When transporting the sprayer, do not exceed

20 mph and do not unnecessarily transport with

chemical in the tank. Fasten the level-float pin

in the lock position (if applicable) before folding

the boom and transporting it.

3. Make sure all tank shut off valves (except the

tank drain) are opened.

4. Calibrate sprayer with water only. Calibrate

with the sprayer tank half full of water. Refer to

Tee Jet Manual.

5. Adjust throttling valves on the solenoids and

the manual pressure adjustment valve.

6. Inspect and clean, if necessary, pump nozzles

and filter.

7. Make sure the material you wish to apply can

be used in your sprayer without causing dam-

age to the pump seal.

IMPORTANT

The Hy Pro pump supplied with your sprayer is not

designed for use with every application. Materials

containing solvents, paints or solutions containing

abrasives will damage the pump. If you are unsure

of your chemicals, consult your dealer for suitability

or your application.

8. Safely and carefully add the chemical to the

sprayer tank. Always wear protective equip-

ment when handling chemicals. See Personal

Safety Equipment in “Important Safety Infor-

mation” section starting on page 5. By low,

chemical containers must be rinsed three

times. The container should then be punctured

to prevent future use. An alternative is to jet-

rinse or pressure rinse the container. Follow

chemical manufacturer’s recommendations for

safe handling of chemicals.

9. Check the sprayer initially and periodically for

loose bolts, pins and hose clamps. Check the

hoses, pumps, valves and fittings for leaks.

10. Make sure that the hand wash tank is full of

clean water.

Preparing the Sprayer

NOTE

Refer to Plumbing Diagram on page 13 if you need

help identifying specific sprayer components.

1. Close drain valve, air clean out valve and filter

clean out valve.

2. Open tank and inspect interior for contaminating

materials.

3. If the sprayer is equipped with a pump drive en-

gine (in addition to the vehicle’s engine), check

fuel and oil levels.

4. Perform an electrical system check on the boom

solenoids and pressure control switch. The sole-

noid switches will emit an audible click when the

switch is opened or closed. The pressure control

valve will make noise when the pressure control

adjustment switch is engaged. If any part fails,

refer to “Troubleshooting” section starting on page

26. Turn all switches off when finished with this

step.

5. Open the pump suction valve.

6. Open the agitation valve. Refer to Figure 5-1 if

you are not sure whether a valve is open or

closed.

Figure 5-1 Valve Position Identification

7. Open the manual pressure control valve located

next to the electric pressure control valve.

8. Extend the boom sections. Check with the Boom

Operator’s manual if you are unfamiliar with the

operation of the boom. If using a level float boom,

remove the locking pin.

9. Some booms are equipped with a ball valve at

each nozzle. If so equipped, open these valves.

10. To operate the turf boom at a 15’ width, fold the

outer sections of the boom and close the ball

valves in front of the nozzles in the outer sections.

Note: this option is not present on all booms.

11. Attach water hose to the anti-siphon fill assembly.

Make sure the knife valve is open and fill the tank

at least 1/3 full, more if performing complete sys-

tems check.

21

12. Start the vehicle’s engine (and pump engine if so

equipped), turn the master switch on (turning on the

pump) and set the throttle to maintain a minimum of

50 PSI on the agitation gauge. If agitation pressure

does not rise immediately, prime the pump by bleed-

ing air through the air clean out valve. Open the air

clean out valve and insert sharp object on the air

valve core to let air escape for ten seconds or until

water is seen at the valve. Close the air clean out

valve. An alternative method is to slightly open the

filter clean out valve, closing it once water is seen at

the valve.

13. Visually inspect hoses and all connections for leaks.

14. Refer to Tee Jet manual to determine pressure and

speed for desired chemical application rates.

15. Turn the boom section switches on and adjust the

manual pressure control valve to 10-20 PSI above

the desired operating pressure. This reduces the

sensitivity of the electric pressure control valve and

allows more precise adjustment from the control

box.

16. Calibrate throttling valves as described in the next

section. Calibration is not necessary every time the

sprayer is used but must be performed after chemi-

cal changes and to ensure the system is operating

properly. It does not harm the system to recalibrate

the throttling valves each time the sprayer is used.

17. Remove the nozzles from the check valve bodies

and flush the boom feed lines briefly by turning the

boom sections on. This will remove any debris that

may accumulate in the feed lines. Turn the boom

sections off, inspect the check valves and dia-

phragms and replace the nozzles.

18. Visually inspect nozzle spray patterns for streaking

or plugged nozzles. Clean or replace worn or dam-

aged nozzles as needed. Set the nozzle angle at 20

degrees rearward.

Calibrating The Throttling Valves

Refer to Figure 5-2:

1. Start by closing all three gray throttling valves by

loosening the jam nut and tightening the knobs all

the way down and then backing off each knob one

complete turn. Do not use excessive pressure.

2. Start the engine and turn the master switch on.

3. Turn on all three boom section switches at the con-

trol box.

4. Adjust the pressure adjust switch on the control bow

until the nozzle pressure measures 20 PSI as indi-

cated on the large gauge at the control box.

5. Turn the left boom section off. Leave the other two

sections on. This will cause the boom pressure to

increase at the other town boom sections.

6. Adjust the gray knob on the left throttling valve until

the pressure again measures 20 PSI on the large

gauge. Firmly lock the gray jam nut against the

knob to hold the knob’s position.

7. Turn the left boom section on and off several times.

If the pressure does not stay at 20 PSI, readjust the

gray knob.

8. When finished with the left boom section, proceed to

the center boom section. Turn the left boom section

on, the center boom section off and the right boom

section on. Adjust the center throttling valve in the

same manner as the one just completed.

9. When finished with the center boom section, adjust

the right boom section. Turn the right section off,

the center and left boom sections on and calibrate

the gray valve in the same manner.

All three throttling valves are now set to maintain

constant boom pressure regardless of which boom

sections are turned on.

When spraying at high gallon rates or extremely viscous

spray solutions you may see the pressure rise when all

three seciton s of the boom are turned off. This condi-

tion is caused by too much fluid trying to bypass back to

the tank agitation. As long as the boom pressure re-

turns to the desired gauge pressure when one or more

boom sections are on, there are no adverse effects on

spraying accuracy.

Adding the Chemicals

NOTE

These procedures are general guidelines for mixing

chemicals. Carefully follow the manufacturer’s instruc-

tions and use these steps in addition when applicable.

IMPORTANT

If you have not calibrated your sprayer, do so before

starting this section.

1. If using a wettable powder, make a slurry in a sepa-

rate container by adding water to the chemical, in

accordance with the manufacturer’s instructions.

22

2. Add the slurry to the sprayer tank with the pump

running and the agitation valve open. The agitation

pressure should be at 50 PSI and all boom sec-

tions should be off.

3. Add other fertilizers or chemicals once the original

slurry is circulating throughout the system. Con-

tinue filling the tank with water (or other specified

liquid carrier). Do not leave the sprayer unat-

tended.

4. Let the sprayer run for 5-10 minutes before spray-

ing the chemicals to allow adequate mixing.

5. See manufacturer’s recommendations to determine

the application rate for the desired chemical and

Tee Jet to determine the specific application pres-

sure and travel speed for your application.

6. Turn the boom on when the vehicle is moving to

prevent over-applying the chemical in any one

spot. Operate the pressure adjust switch on the

control box to adjust boom pressure while spraying.

Emptying the Tank after Spraying

1. Empty the tank while spraying whenever possible.

Closing the agitation valve when the tank is nearly

empty will allow you to almost completely empty

the tank on the field.

2. Use the drain hose to empty the tank.

NOTE

If you have access chemical remaining in the tank, it

must be handled and disposed of in an EPA approved

method. Consult the manufacturer’s label. Do not

empty chemicals into drains, sewers or onto the ground

as it can contaminate nearby water sources!

3. If you are changing chemicals or preparing the

sprayer for storage, the entire system, including

pump, hoses and boom sections needs to be emp-

tied and cleaned.

Cleaning the Sprayer

1. After emptying the sprayer tank, add clean water to

the sprayer and allow it to circulate through the

system. Spray this rinse water onto the field that

was last sprayed. While the sprayer is being

flushed on the field, turn the boom sections on to

flush out the boom sections, check valves and noz-

zles and turn them off to flush out the throttling

valves and bypass lines. Repeat this step several

times. Make sure the solenoid and throttling valves

are thoroughly cleaned. See Cleaning the Sole-

noid and Throttling Valves in next column.

2. The boom pressure gauge is equipped with a ball

valve that is used to clean out any chemical that

has built up under the gauge protector. With clean

water in the sprayer tank and the pump running

open the ball valve and allow the discharge from

the hose to flow into a bucket. After the liquid turns

clear, close the valve and return the contents of the

bucket into the tank.

Using the Air Cleanout Valve

1. Open all valves including drain valve. Allow the

tank to drain completely.

2. Open the air cleanout ball valve and attach a shop

air line (30 PSI maximum, safety clip type recom-

mended) to the air valve.

3. Close the pump suction valve located under the

tank. The air will force out any water in the agitator

line, agitator head and the line connected to the

boom pressure gauge.

4. Close all valves except the manual pressure con-

trol valve. Turn on the master, left, center and right

control switches. Allow the air to blow out all boom

feed lines, manifolds, nozzle lines, check valves

and nozzles. A whistling sound will be heard at

each nozzle when it is clear.

5. Disconnect the air line and close the valves.

6. Open the filter drain valve and allow any liquid and

foreign material in a safe and responsible manner.

Cleaning the Solenoid and Throttling

Valves

Solenoid and throttling valves must be flushed with

clean water daily to assure proper valve operation.

1. With the pump running and the master switch on,

turn on the three boom sections to flush out

sprayer nozzles.

2. Turn all boom sections off to force water through

the throttling valves and bypass line. Repeat sev-

eral times.

3. Periodically clean each throttling valve by unscrew-

ing its gray knob until it stops. Allow the valve to

thoroughly flush with water.

4. Recalibrate the throttling valves as described in the

previous section before using sprayer again.

IMPORTANT

When finished with the sprayer, make sure all switches

on the control box are off.

Protecting the Sprayer from Freezing

If the sprayer is to be stored in freezing or near-freezing

conditions, protect the pump and plumbing system by

draining and cleaning the system and pumping RV anti-

freeze solution through the plumbing system.

NOTE

Locke Turf strongly recommends the use of recrea-

tional vehicle anti-freeze.

23

Maintenance

Proper servicing and adjustment is the key to the

long life of any implement. With careful and sys-

tematic inspection, you can avoid costly downtime

and repair.

Equipment Clean Up

Cleaning your sprayer is one of the most important

parts of a regular maintenance program.

Nozzles should be cleaned with a low pressure air

hose and replaced when out of tolerance. Have a

source of water near by so you can clean the spray

tank and applicator out in a suitable location.

Never wash tank out in the yard or at a car wash.

Dispose of leftover chemical in the same manner

described on the manufacturer’s label of the chemi-

cal last used in the sprayer. Rinse out the tank and

spray the rinse water on the last area that was

sprayed.

While the sprayer is being flushed at eh field, turn

the boom section switches on to flush the nozzles,

then turn them off to flush out the throttling valves

and bypass lines. Repeat this procedure several

times. Periodically clean each throttling valve by

unscrewing the adjustment knob until it stops. Flush

it with the fresh water by operating the pump with

the boom section switches off. Reset the solenoid

throttling valves a described in Solenoids & Throt-

tling Valves on page 19.

The boom pressure gauge has a ball valve that is

used to clean out any chemical that has built up un-

der the gauge protector. With the sprayer tank full

of water and the pump running, open the ball valve

and allow the water to run in a bucket. After the liq-

uid coming out of the hose turns clear, turn off the

ball valve and dumb the contents of the bucket into

the sprayer tank.

24

GEAR CASING

(on models equipped with PTO

pump only)

IMPORTANT - Replace oil plug with

vented plug before operating pump

for proper ventilation.

Side plugs are not oil level indica-

tors. Gear case operating capacity

is 6 oz. Phillube SAE 80W90 or

equivalent. Overfilling may cause

gear case damage.

Lubrication

Legend

Multipurpose Multipurpose Multipurpose Intervals At Which

Spray/Lube Grease Lube Oil Lube Lubrication is Required

50

General Maintenance Information

BEFORE SERVICING OR MAKING ADJUSTMENTS

ON THE SPRAYER, ALWAYS DISENGAGE POWER,

SHUT OFF THE ENGINE, MAKE SURE ALL MOVING

PARTS HAVE STOPPED AND ALL PRESSURE IN

THE SYSTEM IS RELIEVED.

Check the conditions of hoses and connections fre-

quently. Release the system pressure before working

on the sprayer. To release the pressure. Flip the

boom section switches on and off without the pump

running. Always wear rubber gloves when making re-

pairs or adjustments. Make sure all personal Safety

Equipment (gloves, goggles, etc.) listed in page 6, is

stored in an easily accessible place but protected from

potential contamination from dust or chemicals.

Check the sprayer for any loose bolt, pins and hose

clamps. Check the straps holding the tank in place and

tighten when necessary.

Check the hoses, pumps, valves and fittings for any

leaks.

NEVER USE FIGERS, HANDS OR ANY PART O FY-

OUR BODY TO INSPECT THE SPRAYER! IF YOU

SUPECT A LEAK, USE A PIECE OF THICK PAPER,

CARD STOCK OR CARDBOARD INSTEAD OF

YOUR FINGERS TO FIND THE LEAK. MAKE SURE

YOU ARE WEARING ADEQUATE EYE PROTEC-

TION WHEN VISUALLY INSTECTING FOR LEAKS.

HIGH PRESSUER LIQUID CAN EASILY PENETRATE

SKIN!

Inspect all parts of the sprayer for wear and rust. Re-

pair and paint parts as necessary.

Pump Maintenance & Repair

The Hy Pro pump (also refer to Hy Pro Pump Manual)

is designed for long life and service. Eventually, there

may be a need to replace the mechanical seal or ser-

vice some component of the pump. A mechanical seal

may weep slightly but if it starts to drip, the pump will

have to be disassembled. Before you disassemble the

pump, be sure to wash it out with fresh water.

If the pump is leaking, before you remove it from the

sprayer, run the pump with adequate water in the tank

to diagnose the actual pump problem. If fluid leaks out

between the suction housing and the pump volute

housing, the housing gasket may be dried out. Give

the gasket adequate time to absorb moisture and swell

up. If necessary, retighten the volute housing by alter-

nating on opposite sides until all nuts are torqued to

16—18 ft.lbs. It is a good practice to apply grease to

both sides of the gasket to prevent shrinkage.

If the pump seal is leaking causing a drip between

the volute housing and aluminum bearing housing,

the seal may be covered with gritty chemical residue.

If the ceramic part of the seal is cracked, the pump

may have been run dry. If the pump seal spring does

not firmly attach to the impeller during assembly it will

come out of alignment and cause the seal to leak. In

this case the impeller will need replacement. Any

damage to the pinion shaft may cause pump leak-

age.

If the pump is not leaking it can be pressure tested by

closing the agitation valve and the manual pressure

control valve to build up maximum pump pressure.

At high engine speed, the pump pressure should reg-

ister 70—80 psi on the agitation gauge. If pressure

fluctuates, the impeller may be loose or clogged with

debris. The impeller can be opened and cleaned by

removing six screws in the back side of the impeller.

Carefully inspect the fiberglass housing for cracks,

especially around the webs and bolt holes. Air leaks

will prevent the pump from building up pressure.

CAUTION

CAUTION

25

SPECIFICATIONS AND CAPACITIES

Type of Sprayer

Model Number

Weight, Empty, without boom

Weight, Filled w/water, without boom

Available Booms

Tank, Poly

Boom Nozzle Height

Nozzle Spacing

Nozzles

Controls

Pump

Drive

Trailer Sprayer

TR20 (200 gallon poly)

TR30 (300 gallon poly)

20’ Level Float Boom (Manual Fold) or 20’ Electric

Fold Boom

200 gallon or 300 gallon low profile oval w/ 16”

hinged lid, fill basket, 2” anti-siphon fill assembly

w/ quick disconnect

24”

20”

TeeJet Nozzles

Manually operated electrically controlled

(standard) TeeJet 744A

One 3-1/2” 0-100 psi liquid filled gauge

One 2-1/2” 0-100 psi liquid filled gauge

TeeJet 844

Hy Pro

Vehicle PTO driven

Engine Drive (optional)

26

Quick Troubleshooting

Use this chart to help diagnose problems with the

sprayer.

Problem

Pressure Decreasing

Pressure Fluctuating

Pressure Increasing

Pressure Cannot Increase

No Pressure

Pressure Cannot Decrease

Solution

Rebuild or replace pump

Clean hose and reduce cause of clogging

Clean out or replace filter

Open gauge clean-out valve and flush gauge protector

Remove obstruction from clogged area

Align agitators properly

Replace pump housing

Remove material with soft brush or air

Remove obstruction from clogged area

Use cable ties to position hose so it will not kink

Reduce swath width by nozzle reduction; install smaller

Nozzles & drive at a lower rate of speed

Replace or repair

Test switch and replace if faulty

Replace fuse

Open the manual pressure valve all the way and allow

the electric ball valve to govern the pressure.

Make sure all tank shut-off valves are open

Tighten fittings so pump can prime

Replace hose

Remove obstruction

Switch hydraulic hoses in the pump outlet

Tighten PTO coupler

Check that the agitator valve is open and that the liquid

is being agitated

27

Detailed Troubleshooting - Pressure Problems

Use the charts in this section for specific diagnosis of sprayer problems. When troubleshooting, try the

solutions in the order presented. If the first step does not solve the problem, continue until the problem

is solved. If none of the steps solve the problem, call your dealer for help.

Problem

1. No Pressure Reading

on agitation gauge after

starting engine.

2. Pump is primed, but

very low pressure regis-

ters at agitation or con-

trol box gauge

3. Pressure gauge on con-

trol box fluctuates while

spraying.

Solution

a. Make sure there is fluid in the tanks (Yes, it has happened!)

b. Make sure that agitation valve, manual pressure control valve,

pump suction valve and bypass valve are open.

c. On electric clutch units, check drive belt. Tighten if necessary.

d. On PTO drive units, check coupler between engine and pump.

Tighten if necessary.

e. Make sure that gauge cleanout, air cleanout valve, filter drain valve

and tank drain valve are closed.

f. Check for obstructions in bottom of tank and in suction hose and

fittings.

g. Tighten all ball valves, hose clamps and fittings on suction side of

pump to stop any air leaks that prevent pump from priming.

h. Check for collapsed suction hose.

i. If unit is equipped with an electric clutch, check for power to clutch.

j. On hydraulic units, make sure vehicle’s hydraulic PTO is engaged.

k. Hydraulic lines may be disconnected or connected backwards.

a. Clean filter.

b. If filter is clean, check for chemical buildup under rubber diaphragm

in gauge protector or at gauge inlet hole if diaphragm is broken.

Replace diaphragm is broken, clean hose leading to agitation

gauge if necessary.

c. With pump operating, clean hose leading to control box gauge by

using ball valve located on remote magnet mount.

d. Check for cracked pump suction housing and volute housing. Re-

place if necessary.

a. Pump could be losing prime. Tighten all hose clamps, fittings and

valves on suction side of pump.

b. Check that the air clean out valve is closed.

c. With pump operating, clean hose leading to control box gauge by

using ball valve located on remote magnet mount.

d. If fluctuation occurs only when tank level is low, problem could by

caused by vigorous agitation or whirlpools in tank. Turn agitation

head so jets are aimed toward corners of tank.

e. To empty tank completely while spraying, turn off agitation ball

valve while spraying the last few gallons.

f. Fluctuations in engine speed will cause pressure to change. Make

sure that engine speed is constant.

g. If a filter is installed on suction side of pump, clean this filter.

h. Check for foreign matter blocking the tank or floating inside of pump

suction line.

i. On hydraulic drive units, check hydraulic fluid level. Add fluid if

needed.

28

Solution

a. On PTO drive units, check coupler between engine and pump.

Tighten if necessary.

b. With pump operating, clean hose leading to control box gauge by

using ball valve located on remote magnet mount.

c. Check gauge protector to see that it is filled with oil to within 1/8” of

top of threaded hole.

d. Swap agitation gauge and control box gauge to check for faulty

gauge.

e. Inspect electric solenoid valves to see that they are opening and

closing properly. Solenoid valves require 12 volts to open properly.

Valves may need cleaning, adjustment, repair kit or new coil. Low

voltage or a weak battery will result in valves not opening com-

pletely.

a. Check that manual pressure control valve is open.

b. Turn sprayer and engine off, hold the pressure adjust switch and

listen at the electric pressure control valve for whirring sound which

indicates that the motor is turning the valve.

c. With the engine running, visually inspect the nozzles to see if the

pressure is changing. If pressure is changing, clean hose leading

to control box gauge by using ball valve located on remote magnet

mount. If problem persists, swap agitation gauge and control box

gauge to check for faulty gauge.

d. If whirring sound is not heard, check electrical connections and fuse

in the control box.

e. If fuse is good, check with 12 volt tester to see fi pressure adjust

switch is receiving current from fused wire and sending signal to the

electric pressure control valve. Replace switch if faulty.

f. If current is good, check with 12 volt tester to see if pressure adjsut

switch is receiving current from fused wire and sending signal to the

electric pressure control valve. Replace valve if faulty.

a. Check electric pressure control valve operation as follows: With unit

spraying, hold the pressure adjust switch up. The pressure on the

control box gauge should increase to a maximum pressure, remain

high for about 10 seconds and then drop to minimum pressure.

Check wire connections, valve operation and voltage to switch and

valve. Replace valve if necessary.

b. Tank agitation may be restricted. Check that agitation valve is

open and agitator head has four jet streams shooting out.

c. Relieve excess pressure on electric pressure control valve. Open

electric pressure control valve to maximum pressure, then close the

manual control valve unit control gauge reads 15-20 psi above de-

sired nozzle pressure.

a. Check application guide for flow rate and catch nozzle flow to deter-

mine pressure drop.

b. Swap agitation gauge and control box gauge to check for faulty

gauge.

c. Check for clogged or pinched boom feed lines from solenoids.

d. Inspect electric solenoid valves to see that they are opening and

closing properly (Page 19). Solenoid valves require 12 volts to

open properly.

Valves may need cleaning, adjustment, repair kit or a new coil.

Low voltage or a weak battery will result in valves not opening com-

pletely.

Problem

4. Agitation gauge registers

pressure but control box

gauge reads zero or is very

sluggish after nozzles are

turned off.

5. Moving the pressure adjust

switch on the control box does

not change nozzle pressure

but both gauges show some

pressure.

6. Nozzle pressure cannot be

reduced below 20-30 psi.

7. During calibration control

box gauge reads about 30 psi.

Nozzles are spraying about 10

psi. When catching flow of

nozzles, there is a large pres-

sure drop.

29

Solution

a. Throttling valves are becoming plugged. Open gray throttling

valve with nozzles turned off and allow flow to flush out valves

for about 15 seconds per valve. Reset throttling valves.

a. Throttling valves are becoming plugged. Unscrew gray knob on

throttling valve with boom sections turned off and allow to flow to

flush out valves for at least 15 seconds per valve. Reset the

throttling valves when finished.

b. Look for a restriction in the bypass line between the throttling

valves and the tank. If nozzle pressure returns to normal when

one or more boom sections are turned on, spraying accuracy is

unaffected.

a. Check GPM flow to be sure that pump has the capacity to spray

the desired volume.

b. Change to smaller size nozzles.

c. Reduce flow to agitation by partially closing agitation valve Make

sure that there is still adequate agitation after adjusting.

d. Check to be sure that manual pressure control vavle is open.

e. Increase engine RPM to increase pump output.

a. Low Flow: Check the boom feed line for that boom section for

blockage or kinks. Inspect check valves, nozzles, metered

manifold and electric solenoid valves for obstructions and chemi-

cal buildup. Remember, low voltage or a weak battery will result

in valves not opening completely. Check hose length leading to

manifold. If hose length is considerably longer than other sec-

tions, cut hose length to match length of other boom sections.

b. High flow: Check the boom feed line for that boom section for

length. If feed line is much shorter than other boom sections,

replace with longer line. Check to see that all nozzles are the

same size.

a. Recheck calibration.

b. Ground speed is slower than calibrated speed. Recheck speed

using method in application guide.

c. Check to make sure all nozzles are correct and the same size.

One oversized nozzle will result in over-application.

d. Check nozzle spacing.

e. Check control box gauge.

f. Overlap of rows may be too great causing double application in

some area.

g. Check levels in tank. Less than calculated amount would falsely

indicate over application.

h. Check for worn nozzles. Nozzles should be within 10% of

specs. Replace if necessary.

i. Check for possible wheel slippage.

Problem

8. Suspect faulty control box

gauge because pressure

changes when turning off

boom sections.

9. After correctly setting the

throttling valves, boom pres-

sure will not stay constant

when a section of the boom is

turned off.

10. Cannot increase boom pres-

sure to desired setting al-

though pump and plumbing

systems are set and operat-

ing correctly

Plumbing Problems

11. Flow to one boom section is

different than flow to other

boom sections (as con-

firmed by catching flows of

each nozzle).

12. Too much material is being

applied; rate is not as cali-

brated.

30

Solution

a. Recheck calibration.

b. Ground speed is faster than calibrated speed. Recheck speed

using method in application guide.

c. Nozzle size smaller than size used for calibration.

d. If the pressure at the manifolds and nozzles is less than pres-

sure at the control box gauge (#3), feed lines to booms may

need to be cleaned.

e. Check for worn nozzles. Nozzles should be within 10% of

specs. Replace if necessary.

f. Check the travel pattern. Not enough overlap during spraying

may result in under-application by leaving areas unsprayed.

g. Check control box gauge. IF actual rate is less than gauge indi-

cates, suspect a faulty gauge.

h. Check levels in tank. IF tank level was more than amount cal-

culated, a false underapplication condition occurs.

I. Check for filter screen blockage.

j. Check for loose pump impeller bolt.

k. Check for clogged impeller channels. (Requires pump diassem-

bly; try all other options first.)

a. Check nozzles for obstructions in feed holes. Clean nozzles

with toothbrush or suitable brush. Steel picks, nails, etc. will

damage the nozzle.

b. Inspect the check valve in front of each nozzle. Clean and in-

spect rubber diaphragms. The correct rubber viton diaphragm is

marked with a “v”. EPDM rubber diaphragms will become swol-

len and will not work.

c. Check hose barbs screwed into the metered manifolds. If hose

barbs are screwed too far into the manifold, flow can be re-

stricted.

a. Disassemble diaphragm cap from body and check that the cap

spring moves freely.

b. Inspect the diaphragm. Clean or replace if necessary.

c. Increase spraying pressure. About 15 psi is required at the

check valve to hold it open.

d. Check the control box gauge for faulty reading.

a. Clean diaphragm in check valve at nozzle. Look for debris or

nicks which would allow leakage.

b. If problem still appears, check solenoid valve for that section for

proper adjustment of foreign matter on the seat washers in the

valve. Replace washers and seals with valve repair kit if neces-

sary.

Problem

13. Not enougn material is be-

ing applied; rate is not as

calibrated.

14. Nozzle flows across boom

are inconsistent and vary

several ounces high or low.

15. Diaphragm check valves at

nozzles will not stay open

while spraying.

16. Nozzles continue to spray or

dribble after boom is turned

off.

31

Solutions

a. Angle nozzles 20 degrees rearward.

b. Nozzle cap is obstructed or scratched. Clean nozzle gently with

water or solvent, using a toothbrush to clean the orifice hole in the

cap. Use a pipe cleaner to clean the metering feed hole in the

body. Steel picks, nails, etc. will damage the nozzle.

c. Disable the nozzle and clean inside surfaces, threads and any

sealing surfaces where the cap meets the body. Carefully inspect

the cap and body for any nicks, wear or chemical buildup. Tighten

nozzle cap firmly with torque wrench to 30 ft.lbs.

d. If nozzle output is high, the metering feed hole or internal cavity is

worn. Replace the nozzle.

e. Check nozzle spacing for correct overlap. Use 20” spacing on turf

booms.

f. Make sure that windy conditions are not affecting the spray pattern.

g. Check boom height.

a. Debris catching in throttling valves. Open gray throttling vale with

nozzles turned off and allow flow to flush out valves for about 15 sec-

onds per valve. Reset throttling valves.

b. If problem continues, replace filter screen with 50 mesh screen.

a. Check for proper lid fit.

a. Make sure agitation valve is open.

b. Check for obstructions or kinks on the agitation line.

c. Inspect agitator head for plugged holes.

d. Increase flow and pressure to agitation by increasing pump seed.

Do not exceed 4000 RPM or 90 psi.

e. Make sure chemicals were mixed properly. Do not allow chemi-

cals to settle in tank.

f. Agitate longer before spraying.

a. Check housing for cracks.

b. Housing gasket may be dried out and leaking. Allow gasket time

to absorb moisture and retighten bolts around housing in an even

manner.

c. Seal leaking, causing drip between pump and bearing housing. If

pump has been run dry, seal may be cracked. Replace seal.

d. Pinion shaft may be damaged at sealing surfaces. Replace.

a. Loosen end caps, then retighten equally to keep internal parts

from shifting.

b. If still leaking, disassemble valve and check that o-rings are in

good condition. Replace if necessary.

Problem

17. Nozzle shows streaking or a

collapsed pattern; nozzle

drips while spraying.

18. Throttling valves must be

readjusted after each tank

sprayed.

19. Liquid leaks out around tank

lid while spraying.

20. Chemicals will not stay in

suspension.

21. Pump leaks.

22. Ball valve leaks.

32

Solution

a. Check electrical connections and battery charge. Valves may

need cleaning, armature stop adjustment, repair kit or new coil.

Low voltage or a weak battery will result in valves not opening com-

pletely.

b. Check output of alternator or battery. (See vehicles owner’s

manual)

a. Solenoid plunger is not functioning. Plunger may be seized up

or coil may be bad.

b. Physically cycle solenoid valve by pushing up at bottom of sole-

noid several times. If it will manually open and close, check electri-

cal switching.

c. Clean inside of solenoid if some movement occurs when electri-

cally operating valve.

d. Clean terminals on solenoid coil.

e. Test coil by exchanging it with working coil from adjacent sole-

noid valve.

f. Replace coil.

g. Install solenoid seal repair kit.

a. Check boom section feed lines to see that they are connected to

the correct boom sections.

b. Switch wires on top of solenoid valves to correct order.

a. Check to see that fuse is correct size. (15-20 amps)

b. Check for short circuit between switch ternimals inside control

box. Carefully separate touching wires.

c. Inspect wiring harness for bare wires, rub points or any damage.

a. Check battery terminals. Clean if necessary.

b. Check water level in battery. Add distilled water and charge if

necessary. (See vehicle owner’s manual)

c. Sprayer components depleting vehicle battery. Allow vehicle to

idle briefly after spraying (with all pumps, foam markers, etc. off) to

allow battery to fully charge.

d. Weak battery. Test and replace if necessary.

a. Driveshaft out of alignment. Realign shaft.

Problem

23. Solenoid valves shut off or

partially close while spray-

ing.

24. Solenoid valve will not click

open but has adequate

power (checked by switch-

ing wires to adjacent sole-

noids.)

25. Control box switches oper-

ate the wrong boom sec-

tions.

26. Control box blows fuse.

27. Vehicle battery low.

Mechanical Problems

28. Sprayer makes chattering

noise when pump is turned

on.

Electrical Problems

33

TORQUE SPECIFICATIONS

Proper torque for American fasteners used on Locke Turf equipment.

Recommended Torque in Foot Pounds (Newton Meters). *

WRENCH

SIZE

(mm) “A”

BOLT

DIA.

(mm) “B”

ASTM

4.6 ASTM

8.8 ASTM

9.8 ASTM

10.9

8 5 1.8 (2.4) 5.1 (6.9) 6.5 (8.8)

10 6 3 (4) 8.7 (12) 11.1 (15)

13 8 7.3 (10) 21.1 (29) 27 (37)

16 10 14.5 (20) 42 (57) 53 (72)

18 12 25 (34) 74 (100) 73 (99) 93 (126)

21 14 40 (54) 118 (160) 116 (157) 148 (201)

24 16 62 (84) 167 (226) 181 (245) 230 (312)

30 20 122 (165) 325 (440) 449 (608)

33 22 443 (600) 611 (828)

36 24 211 (286) 563 (763) 778 (1054)

41 27 821 (1112) 1138 (1542)

46 30 418 (566) 1119 (1516) 1547 (2096)

Bolt

Diameter "B"

Wrench

Size "A" 8.8

Numbers appearing on bolt heads

Indicate ASTM class.

*Use 75% of the specified torque value

for plated fasteners. Use 85% of the

specified torque values for lubricated

fasteners.

METRIC

Proper torque for American fasteners used on Locke Turf equipment.

Recommended Torque in Foot Pounds (Newton Meters). *

WRENCH

SIZE (IN.) “A” BOLT DIAMETER

(IN.) “B” AND

THREAD SIZE

SAE

GRADE 2 SAE

GRADE 5 SAE

GRADE 8

7/16 1/4 –20 UNC 6 (7) 8 (11) 12 (16)

7/16 1/4 –28 UNF 6 (8) 10 (13) 14 (18)

1/2 5/16 – 18 UNC 11 (15) 17 (23) 25 (33)

1/2 5/16 – 24 UNF 13 (17) 19 (26) 27 (37)

9/16 3/8 – 16 UNC 20 (27) 31 (42) 44 (60)

9/16 3/8 – 24 UNF 23 (31) 35 (47) 49 (66)

5/8 7/16 – 14 UNC 32 (43) 49 (66) 70 (95)

5/8 7/16 – 20 UNF 36 (49) 55 (75) 78 (106)

3/4 1/2 – 13 UNC 49 (66) 76 (103) 106 (144)

3/4 1/2 – 20 UNF 55 (75) 85 (115) 120 (163)

7/8 9/16 – 12 UNC 70 (95) 109 (148) 153 (207)

7/8 9/16 – 18 UNF 79 (107) 122 (165) 172 (233)

15/16 5/8 – 11 UNC 97 (131) 150 (203) 212 (287)

15/16 5/8 – 18 UNF 110 (149) 170 (230) 240 (325)

1-1/8 3/4 – 10 UNC 144 (195) 266 (360) 376 (509)

1-1/8 3/4 –16 UNF 192 (260) 297 (402) 420 (569)

1-5/16 7/8 – 9 UNC 166 (225) 430 (583) 606 (821)

1-5/16 7/8 – 14 UNF 184 (249) 474 (642) 668 (905)

1-1/2 1 –8 UNC 250 (339) 644 (873) 909 (1232)

1-1/2 1 – 12 UNF 274 (371) 705 (955) 995 (1348)

1-1/2 1 – 14 UNF 280 (379) 721 (977) 1019 (1381)

1-11/16 1-1/8 – 7 UNC 354 (480) 795 (1077) 1288 (1745)

1-11/16 1-1/8 – 12 UNF 397 (538) 890 (1206) 1444 (1957)

1-7/8 1-1/4 – 7 UNC 500 (678) 1120 (1518) 1817 (2462)

1-7/8 1-1/4 – 12 UNF 553 (749) 1241 (1682) 2013 (2728)

2-1/16 1-3/8 – 6 UNC 655 (887) 1470 (1992) 2382 (3228)

2-1/16 1-3/8 – 12 UNF 746 (1011) 1672 (2266) 2712 (1992)

2-1/4 1-1/2 – 6 UNC 870 (1179) 1950 (2642) 3161 (4283)

2-1/4 1-1/2 – 12 UNF 979 (1327) 2194 (2973) 3557 (4820)

AMERICAN

Bolt Head Markings

SAE Grade 2

(No Dashes)

SAE Grade 5

(3 Dashes)

Bolt

Diameter "B"

t

"

Wrench

Size "A" SAE Grade 8

(6 Dashes)

34

Locke Turf

307 Highway 52E, Opp, Alabama, 36467, (334) 493-1300