Graco 332919C Gmax 3400 Ii 3900 5900 7900 And Texspray 5900Hd 7900Hd Users Manual 3400, 3900/5900/7900, 5900HD/7900HD Airless Sprayers Operation (English)

4af76202-da4b-4c1e-a455-9a706b20a3ac Graco Paint Sprayer 16W867 User Guide |

2015-04-02

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Page Count: 38

Table of Contents
Warning
Component Identification
Pressure Relief Procedure
Grounding
Setup
Startup
WatchDog™ Protection System (ProContractor and Ironman units only)
Hose Reel (ProContractor units only)
Digital Tracking System (ProContractor and Ironman units)
Cleanup
Maintenance
Troubleshooting
Digital Display Messages
Pinion Assembly/Clutch Armature/Clamp
Technical Data
Graco Standard Warranty

332919C

Operation

GMAX™ 3400, GMAX™ II 3900/5900/7900, and

TexSpray 5900HD/7900HD Airless Sprayers

For professional use only.

Not approved for use in European explosive atmosphere locations.

For the application of architectural paints and coatings.

3300 psi (22.8 MPa, 228 bar) Maximum Working Pressure

Important Safety Instructions

Read all warnings and instructions in this manual

and in gas engine manual. Save these instructions.

GMAX 3400

Model: Standard

16W863 ✓

GMAX II 3900

Model: Standard ProContractor Lo-Boy RentalPro

360G

16W865 ✓

16W866 ✓

16W867 ✓

16W984 ✓

GMAX II 5900

Model: Standard ProContractor Lo-Boy Ironman Convertible

16W869 ✓

16W870 ✓

16W871 ✓

16W881 ✓

16W873 ✓

GMAX II 7900

Model: Standard ProContractor Lo-Boy Ironman Roof Rig

16W883 ✓

16W884 ✓

16W885 ✓

16W887 ✓

16W987 ✓

TexSpray 5900HD

Model: Standard ProContractor

16W889 ✓

16W882 ✓

TexSpray 7900HD

Model: Standard ProContractor Ironman

16W890 ✓

16W888 ✓

16X949 ✓

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Related Manuals:

Parts 332921

Table of Contents

2332919C

Table of Contents

Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Component Identification . . . . . . . . . . . . . . . . . . . . 5

Standard Models (3400, 3900, 5900, 5900HD,

7900, 7900HD) . . . . . . . . . . . . . . . . . . . . . . . 5

ProContractor Models (3900, 5900, 7900, 5900HD,

7900HD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Ironman Models (5900, 7900, 7900HD) . . . . . . . 7

Lo-Boy Models (3900, 5900, 7900) . . . . . . . . . . . 8

Convertible Models (5900) . . . . . . . . . . . . . . . . . 9

Pressure Relief Procedure . . . . . . . . . . . . . . . . . . 10

Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Convertible Models Only: . . . . . . . . . . . . . . . . . 12

Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Switch Tip™ Guard Assembly . . . . . . . . . . . . . . 14

Spray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Clearing Tip Clogs . . . . . . . . . . . . . . . . . . . . . . . 15

WatchDog™ Protection System (ProContractor and

Ironman units only) . . . . . . . . . . . . . . . . . . . . . 15

Hose Reel

(ProContractor units only) . . . . . . . . . . . . . . . 16

Digital Tracking System

(ProContractor and Ironman units) . . . . . . . . 17

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Cleanup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Pressure Relief Procedure . . . . . . . . . . . . . . . . 21

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Fluid Pump Runs Constantly . . . . . . . . . . . . . . . 24

Control Board Malfunction . . . . . . . . . . . . . . . . . 25

Control Board Malfunction (Steps) . . . . . . . . . . . 26

Convertible Electric Motor Will Not Run . . . . . . 27

Convertible Electric Motor Will Not Run (Steps) 28

Convertible Electric Motor Runs -

No AC Output to Sprayer Control Board . . . 29

Digital Display Messages . . . . . . . . . . . . . . . . . . . 31

Pinion Assembly/Clutch Armature/Clamp . . . . . . 32

Pinion Assembly/Clutch Armature Removal . . . 32

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Clamp Removal . . . . . . . . . . . . . . . . . . . . . . . . . 33

Clamp Installation . . . . . . . . . . . . . . . . . . . . . . . 33

Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 38

Warning

332919C 3

Warning

The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation

point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific risks. When these

symbols appear in the body of this manual or on warning labels, refer back to these Warnings. Product-specific hazard

symbols and warnings not covered in this section may appear throughout the body of this manual where applicable.

WARNING

FIRE AND EXPLOSION HAZARD

Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help prevent fire and

explosion:

•Use equipment only in well ventilated area.

•Do not fill fuel tank while engine is running or hot; shut off engine and let it cool. Fuel is flammable and can

ignite or explode if spilled on hot surface.

•Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic drop cloths

(potential static arc).

•Keep work area free of debris, including solvent, rags and gasoline.

•Do not plug or unplug power cords, or turn power or light switches on or off when flammable fumes are present.

•Ground all equipment in the work area. See Grounding instructions.

•Use only grounded hoses.

•Hold gun firmly to side of grounded pail when triggering into pail. Do not use pail liners unless they are antistatic

or conductive.

•Stop operation immediately if static sparking occurs or you feel a shock. Do not use equipment until you iden-

tify and correct the problem.

•Keep a working fire extinguisher in the work area.

SKIN INJECTION HAZARD

High-pressure spray is able to inject toxins into the body and cause serious bodily injury. In the event that injection

occurs, get immediate surgical treatment.

•Do not aim the gun at, or spray any person or animal.

•Keep hands and other body parts away from the discharge. For example, do not try to stop leaks with any part

of the body.

•Always use the nozzle tip guard. Do not spray without nozzle tip guard in place.

•Use Graco nozzle tips.

•Use caution when cleaning and changing nozzle tips. In the case where the nozzle tip clogs while spraying, fol-

low the Pressure Relief Procedure for turning off the unit and relieving the pressure before removing the noz-

zle tip to clean.

•Do not leave the unit energized or under pressure while unattended. When the unit is not in use, turn off the unit

and follow the Pressure Relief Procedure for turning off the unit.

•Check hoses and parts for signs of damage. Replace any damaged hoses or parts.

•This system is capable of producing 3300 psi (22.8 MPa, 228 bar). Use Graco replacement parts or accessories

that are rated a minimum of 3300 psi (22.8 MPa, 228 bar).

•Always engage the trigger lock when not spraying. Verify the trigger lock is functioning properly.

•Verify that all connections are secure before operating the unit.

•Know how to stop the unit and bleed pressure quickly. Be thoroughly familiar with the controls.

MOVING PARTS HAZARD

Moving parts can pinch, cut or amputate fingers and other body parts.

•Keep clear of moving parts.

•Do not operate equipment with protective guards or covers removed.

•Pressurized equipment can start without warning. Before checking, moving, or servicing equipment, follow the

Pressure Relief Procedure and disconnect all power sources.

Warning

4332919C

EQUIPMENT MISUSE HAZARD

Misuse can cause death or serious injury.

•Do not operate the unit when fatigued or under the influence of drugs or alcohol.

•Do not exceed the maximum working pressure or temperature rating of the lowest rated system component.

See Technical Data in all equipment manuals.

•Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all equipment

manuals. Read fluid and solvent manufacturer’s warnings. For complete information about your material,

request MSDS from distributor or retailer.

•Do not leave the work area while equipment is energized or under pressure.

•Turn off all equipment and follow the Pressure Relief Procedure when equipment is not in use.

•Check equipment daily. Repair or replace worn or damaged parts immediately with genuine manufacturer’s

replacement parts only.

•Do not alter or modify equipment. Alterations or modifications may void agency approvals and create safety

hazards.

•Make sure all equipment is rated and approved for the environment in which you are using it.

•Use equipment only for its intended purpose. Call your distributor for information.

•Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.

•Do not kink or over bend hoses or use hoses to pull equipment.

•Keep children and animals away from work area.

•Comply with all applicable safety regulations.

PRESSURIZED ALUMINUM PARTS HAZARD

Use of fluids that are incompatible with aluminum in pressurized equipment can cause serious chemical reaction

and equipment rupture. Failure to follow this warning can result in death, serious injury, or property damage.

•Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or fluids contain-

ing such solvents.

•Many other fluids may contain chemicals that can react with aluminum. Contact your material supplier for com-

patibility.

CARBON MONOXIDE HAZARD

Exhaust contains poisonous carbon monoxide, which is colorless and odorless. Breathing carbon monoxide can

cause death.

•Do not operate in an enclosed area.

TOXIC FLUID OR FUMES HAZARD

Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled, or swallowed.

•Read MSDSs to know the specific hazards of the fluids you are using.

•Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines.

BURN HAZARD

Equipment surfaces and fluid that is heated can become very hot during operation. To avoid severe burns:

•Do not touch hot fluid or equipment.

PERSONAL PROTECTIVE EQUIPMENT

Wear appropriate protective equipment when in the work area to help prevent serious injury, including eye injury,

hearing loss, inhalation of toxic fumes, and burns. This protective equipment includes but is not limited to:

•Protective eyewear, and hearing protection.

•Respirators, protective clothing, and gloves as recommended by the fluid and solvent manufacturer.

RECOIL HAZARD

Gun may recoil when triggered. If you are not standing securely, you could fall and be seriously injured.

CALIFORNIA PROPOSITION 65

The engine exhaust from this product contains a chemical known to the State of California to cause

cancer, birth defects or other reproductive harm.

This product contains a chemical known to the State of California to cause cancer, birth defects or other reproduc-

tive harm. Wash hands after handling.

WARNING

Component Identification

332919C 5

Component Identification

Standard Models (3400, 3900, 5900, 5900HD, 7900, 7900HD)

OFF

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A Engine ON/OFF Switch

B Grounding Clamp

C Pump On/Off Switch

D Pressure Control

E Prime Valve

F Gun Trigger Lock

GStrainer

HPump

J Engine Controls

K Drain Hose

L Easy Out Pump Filter

MHose

Component Identification

6332919C

ProContractor Models (3900, 5900, 7900, 5900HD, 7900HD)

OFF

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A Grounding Coil

B Smart Control 3.0 Display

C Pump ON/OFF Switch

DWatchDogTM Switch

E Pressure Control

F Prime Valve

G Gun Trigger Lock

HStrainer

J Drain hose

KPump

L Toolbox

M Rod Pull Feature

N Engine Controls

PProConnectTM II Pump Clamp

R Filter

S Engine ON/OFF Switch

T Hose Reel

Component Identification

332919C 7

Ironman Models (5900, 7900, 7900HD)

OFF

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A Grounding Coil

B Smart Control 3.0 Display

C Pump ON/OFF Switch

DWatchDogTM Switch

E Pressure Control

F Prime Valve

G Gun Trigger Lock

H Heavy Duty Strainer

J Drain Hose

K MaxLife Pump

L Rod Pull Feature

M Engine Controls

NProConnectTM II Pump Clamp

P Easy Out Pump Filter

R Engine ON/OFF Switch

SHose

Component Identification

8332919C

Lo-Boy Models (3900, 5900, 7900)

OFF

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A Engine ON/OFF Switch

B Grounding Coil

C Pump ON/OFF Switch

D Pressure Control

E Prime Valve

F Gun Trigger Lock

GHose

HPump

J Drain Hose

K Rod Pull Feature

LStrainer

M Engine Controls

NProConnectTM II Pump Clamp

O Easy Out Pump Filter

Component Identification

332919C 9

Convertible Models (5900)

OFF

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A Engine ON/OFF Switch

B Grounding Coil

C Pump On/Off Switch

D Pressure Control

E Prime Valve

F Gun Trigger Lock

GHose

HStrainer

JPump

K Engine Controls

L Drain Hose

M Easy Out Pump Filter

NPower Pack

Pressure Relief Procedure

10 332919C

Pressure Relief Procedure

Follow the Pressure Relief Procedure whenever

you see this symbol.

1. Engage trigger lock.

2. Turn engine ON/OFF switch to OFF.

3. Move pump switch to OFF and turn pressure control

knob fully counterclockwise.

4. Disengage trigger lock. Hold metal part of gun firmly

to side of grounded metal pail, and trigger gun to

relieve pressure.

5. Engage gun trigger lock.

6. Turn prime valve down to DRAIN position. Leave

prime valve down until ready to spray again.

7. If you suspect the spray tip or hose is clogged or

that pressure has not been fully relieved after follow-

ing the steps above, VERY SLOWLY loosen tip

guard retaining nut or hose end coupling to relieve

pressure gradually, then loosen completely. Clear

hose or tip obstruction.

Grounding

To ground sprayer: Attach sprayer grounding clamp to

earth ground.

Air and fluid hoses: Use only electrically conductive

hoses with a maximum of 500 ft. (150 m) combined

hose length to ensure grounding continuity. Check elec-

trical resistance of hoses. If total resistance to ground

exceeds 29 megohms, replace hose immediately.

Spray gun: Ground through connection to a properly

grounded fluid hose and pump.

Solvent pails used when flushing: Follow local code.

Use only conductive metal pails, placed on a grounded

surface. Do not place the pail on a nonconductive sur-

face, such as paper or cardboard, which interrupts

grounding continuity.

To maintain grounding continuity when flushing or

relieving pressure: Hold metal part of the spray gun

firmly to the side of a grounded metal pail, then trigger

the gun.

This equipment stays pressurized until pressure is

manually relieved. To help prevent serious injury

from pressurized fluid, such as skin injection,

splashing fluid and moving parts, follow the

Pressure Relief Procedure when you stop spraying

and before cleaning, checking, or servicing the

equipment.

The equipment must be grounded to reduce the risk

of static sparking. Static sparking can cause fumes

to ignite or explode. Grounding provides an escape

wire for the electric current.

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Setup

332919C 11

Setup

All sprayers except ProContractor:

Connect

appropriate Graco high-pressure hose to sprayer.

Select Units:

Install whip hose to fluid inlet of spray

gun and tighten securely.

3. Engage gun trigger lock.

4. When spraying texture, remove inlet strainer and fil-

ter bowl screen when spraying materials.

5. Fill throat packing nut with TSL to prevent prema-

ture packing wear. Do this each time you spray.

6. Check engine oil level. Add SAE 10W-30 (summer)

or 5W-20 (winter), if necessary.

7. Fill fuel tank.

8. Attach sprayer grounding clamp to earth ground.

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Setup

12 332919C

Convertible Models Only:

Change Engine to Motor

1. Disconnect engine power cord.

2. Release tension bar.

3. Remove engine; tilt and slide back.

4. Install motor; drop in and push forward.

5. Look through side vent holes and ensure drive belt

is in motor pulley.

6. Secure motor with tension bar.

7. Plug in pressure control power cord.

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Startup

332919C 13

Startup

1. Place suction tube and drain tube in grounded metal

pail partially filled with flushing fluid. Attach ground

wire to pail and to earth ground.

2. Turn prime valve down to DRAIN position. Turn

pressure control counterclockwise to lowest pres-

sure.

3. Set pump switch OFF.

4. Start Engine

a. Move fuel valve to open.

b. Move choke to closed.

c. Set throttle to fast.

d. Set engine switch to ON.

5. Pull rope to start engine.

6. Increase pressure enough to start pump stroking

and allow fluid to circulate for 15 seconds; turn pres-

sure down and turn prime valve forward to SPRAY

position.

7. Disengage spray gun trigger lock.

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Startup

14 332919C

8. Hold gun against grounded metal flushing pail. Trig-

ger gun and increase fluid pressure slowly until

pump runs smoothly.

Inspect fittings for leaks. Do not stop leaks with your

hand or a rag! If leaks occur, turn sprayer OFF

immediately. Perform Pressure Relief Procedure

steps 1-3, page 10. Tighten leaky fittings. Repeat

Startup procedure steps 1 - 5. If no leaks, continue

to trigger gun until system is thoroughly flushed.

Proceed to step 6.

9. Place siphon tube in material pail.

10. Trigger gun again into flushing fluid pail until mate-

rial appears.

Switch Tip™ Guard Assembly

1. Perform Pressure Relief Procedure, page 10.

2. Engage gun trigger lock. Insert Switch Tip. Insert

seat and OneSeal™.

3. Insert Switch Tip.

4. Screw assembly onto gun. Tighten.

Spray

1. Spray test pattern. Increase pressure to eliminate

heavy edges. Use smaller tip size if pressure adjust-

ment can not eliminate heavy edges.

2. Hold gun perpendicular, 10-12 in. (25-30 cm) from

surface. Spray back and forth. Overlap by 50%.

Trigger gun after moving and release before stop-

ping.

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WatchDog™ Protection System (ProContractor and Ironman units only)

332919C 15

Clearing Tip Clogs

1. Release trigger, engage trigger lock. Rotate Switch

Tip. Disengage trigger lock. Trigger gun to clear

clog.

2. Engage trigger lock. Return Switch Tip to original

position. Disengage trigger lock and continue spray-

ing.

WatchDog™ Protection System

(ProContractor and Ironman units only)

Pump stops automatically when material pail is empty.

To Activate:

1. Perform Startup.

2. Turn WatchDog switch ON and WD ON displays.

EMPTY displays/flashes and pump stops when

Watchdog protection system detects an empty

material pail.

3. Turn WatchDog switch OFF. Add material or reprime

sprayer. Turn pump switch OFF and ON to reset

WatchDog protection system. Turn WatchDog

switch back ON to continue to monitor material

level.

To avoid injury, never point gun at your hand or into a

rag!

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Hose Reel (ProContractor units only)

16 332919C

Hose Reel

(ProContractor units only)

1. Make sure hose is routed through hose guide.

2. Lift and turn pivot lock 90 to unlock hose reel. Pull

on hose to remove it from hose reel.

3. Pull reel handle down and turn clockwise to reel in

hose.

NOTE: The hose reel can be locked into two posi-

tions: Usage (A) and Storage (B).

To avoid injury, keep your head clear of hose reel

while winding up hose.

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(A) (B)

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Digital Tracking System (ProContractor and Ironman units)

332919C 17

Digital Tracking System

(ProContractor and Ironman units)

Operation Main Menu

Short press to move to next display. Press and hold (5

seconds) to change units or reset data.

1. Turn pressure to lowest setting. Trigger gun to

relieve pressure. Turn prime valve down to DRAIN

position.

2. Turn power ON. Pressure display appears. Dashes

will not appear unless pressure is less than 200 psi

(14 bar, 1,4 MPa).

Change Display Units

Press and hold DTS button for 5 seconds to change

pressure units (psi, bar, MPa) to desired units. Selec-

tion of bar or MPa changes gallons to liters x 10. To

change display units DTS must be in pressure display

mode and pressure must be at zero.

Job Gallons

1. Short press DTS button to move to Job Gallons (or

liters x 10).

NOTE: JOB scrolls past, then the number of gallons

sprayed above 1000 psi (70 bar, 7 MPa) displays.

Lifetime Gallons

1. Short press DTS button to move to Lifetime Gallons

(or liters x 10).

NOTE: LIFE scrolls briefly, then the number of gal-

lons sprayed above 1000 psi (70 bar, 7 MPa) dis-

plays.

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OFF

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Digital Tracking System (ProContractor and Ironman units)

18 332919C

Secondary Menu - Stored Data and

WatchDog Pump Protection Modes

1. Perform Pressure Relief, steps 1 - 4 if they have

not already been done.

2. Turn power switch on while holding DTS button

down.

3. The sprayer model briefly displays (e.g. 5900),

SERIAL NUMBER scrolls past and then serial num-

ber (e.g. 00001) displays.

4. Short press DTS button and MOTOR ON scrolls

past and then total motor run hours are displayed.

5. Short press DTS button. LAST ERROR CODE

scrolls by and last error code is displayed; e.g.

E=07. See sprayer Repair manual for additional

information.

6. Press and hold DTS button to clear error code to

zero.

7. Short press DTS button. W-DOG scrolls past then

OFF displays if watchdog switch is OFF. ON dis-

plays if Watchdog switch is ON.

8. Press and hold (8 seconds) DTS button to move to

WatchDog Trigger % menu. Continue to hold DTS

button and Watchdog can be set to trigger at 30, 40,

50, or 60% of current sprayer pressure setting.

Release DTS button when desired % is displayed.

default is 50%.

9. Short press to move to SOFTWARE REV.

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Cleanup

332919C 19

Cleanup

1. Perform Pressure Relief Procedure (page 10),

steps 1 - 4. Remove siphon tube set from paint and

place in flushing fluid. Remove tip guard from gun.

NOTE: Use water for water-base paint, mineral spir-

its for oil-base paint, or other solvents recom-

mended by manufacturer.

2. Start Engine

a. Move fuel valve to open.

b. Move choke to closed.

c. Set throttle to fast.

d. Set engine switch to ON.

3. Pull rope to start engine.

4. Turn pump switch ON. Turn prime valve forward to

SPRAY position.

5. Increase pressure to 1/2. Hold gun against paint

pail. Disengage trigger lock. Trigger gun until flush-

ing fluid appears.

6. Move gun to waste pail, hold gun against pail, trig-

ger gun to thoroughly flush system. Release trigger

and engage trigger lock.

7. Turn prime valve down to DRAIN position and allow

flushing fluid to circulate until flushing fluid appears

clear.

8. Turn prime valve forward to SPRAY position. Trigger

gun into flushing pail to purge fluid from hose.

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OFF

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Cleanup

20 332919C

9. Raise siphon tube above flushing fluid and run

sprayer for 15 to 30 seconds to drain fluid. Turn

pump switch and engine OFF

10. Turn prime valve down DRAIN position.

11. Remove filters from gun and sprayer, if installed.

Clean and inspect. Install filters.

12. If flushing with water, flush again with mineral spirits,

or Pump Armor, to leave a protective coating to pre-

vent freezing or corrosion.

13. Wipe sprayer, hose and gun with a rag soaked in

water or mineral spirits.

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Maintenance

332919C 21

Maintenance

Pressure Relief Procedure

1. Lock gun trigger safety.

2. Turn engine ON/OFF switch to OFF.

3. Move pump switch to OFF and turn pressure control

knob fully counterclockwise.

4. Unlock trigger safety. Hold metal part of gun firmly to

side of grounded metal pail, and trigger gun to

relieve pressure.

5. Lock gun trigger safety.

6. Open pressure drain valve. Leave valve open until

ready to spray again.

If you suspect that the spray tip or hose is completely

clogged, or that pressure has not been fully relieved

after following the steps above, VERY SLOWLY loosen

tip guard retaining nut or hose end coupling to relieve

pressure gradually, then loosen completely. Now clear

tip or hose.

NOTE: For detailed engine maintenance and specifica-

tions, refer to separate Honda Engines Owner's Manual,

supplied.

DAILY: Check engine oil level and fill as necessary.

DAILY: Check hose for wear and damage.

DAILY: Check that all hose fittings are secure.

DAILY: Check gun safety for proper operation.

DAILY: Check pressure drain valve for proper opera-

tion.

DAILY: Check and fill the gas tank.

DAILY: Check level of TSL in displacement pump pack-

ing nut. Fill nut, if necessary. Keep TSL in nut to help

prevent fluid buildup on piston rod and premature wear

of packings and pump corrosion.

AFTER THE FIRST 20 HOURS OF OPERATION:

Drain engine oil and refill with clean oil. Reference

Honda Engines Owner's Manual for correct oil viscosity.

WEEKLY: Remove engine air filter cover and clean ele-

ment. Replace element, if necessary. If operating in an

unusually dusty environment: check filter daily and

replace, if necessary.

Replacement elements can be purchased from your

local HONDA dealer.

AFTER EACH 100 HOURS OF OPERATION:

Change engine oil. Reference Honda Engines Owner's

Manual for correct oil viscosity.

SPARK PLUG: Use only BPR6ES (NGK) or

W20EPR-U (NIPPONDENSO) plug. Gap plug to 0.028

to 0.031 in. (0.7 to 0.8 mm). Use spark plug wrench

when installing and removing plug.

Use the supplied engine oil funnel when draining oil.

ti23054a

OIL FUNNEL

Troubleshooting

22 332919C

Troubleshooting

Problem Cause Solution

E=XX is displayed Fault condition exists. Determine fault correction from table, page 31.

Engine will not start Engine switch is OFF. Turn engine switch ON.

Engine is out of gasoline. Refill gas tank. Honda Engine Manual.

Engine oil level is low. Try to start engine. Replenish oil, if necessary.

Honda Engine Manual.

Spark plug disconnected or damaged. Connect spark plug cable or replace spark

plug.

Engine is cold. Use choke.

Fuel shutoff lever is OFF. Move lever to ON position.

Oil is seeping into combustion cham-

ber.

Remove spark plug. Pull starter 3 to 4 times.

Clean or replace spark plug. Start engine.

Keep sprayer upright to avoid oil seepage.

False tripping of WatchDog system.

EMPTY is displayed. Pump does not

run.

Operating conditions out of WatchDog

parameters.

Pump output is low, page 23.

Turn pressure down. Contact Graco Technical

Assistance to adjust WatchDog parameters.

Operate without WatchDog active (see Opera-

tion manual).

Engine operates, but displacement

pump does not operate

Error code displayed. See Digital Display Messages, page 31.

Pump switch is OFF. Turn pump switch ON.

Pressure setting too low. Turn pressure adjusting knob clockwise to

increase pressure.

Fluid filter is dirty. Clean filter.

Tip or tip filter is clogged. Clean tip or tip filter (see gun manual).

Displacement pump piston rod is stuck

due to dried paint.

Repair pump (see pump manual).

Connecting rod is worn or damaged. See Parts manual.

Drive housing is worn or damaged. See Parts manual.

Electrical power is not energizing clutch

field.

See Parts manual.

See Digital Display Messages, page 31.

With pump switch ON and pressure turned to

MAXIMUM, use a test light to check for power

between clutch test points on control board.

Remove clutch wires from control board and

measure resistance across clutch coil. At 70°

F, the resistance must be between for 3900 -

1.2 + 0.2 Ω, for 5900/7900 1.7 ± 0.2 Ω; if not,

replace pinion housing.

Have pressure control checked by authorized

Graco dealer.

Clutch is worn, damaged, or incorrectly

positioned.

Adjust or replace clutch. See page 32.

Pinion assembly is worn or damaged. Repair or replace pinion assembly. Page 32.

Troubleshooting

332919C 23

Pump output is low Strainer is clogged. Clean strainer.

Piston ball is not seating. Service piston ball (see pump manual).

Piston packings are worn or damaged. Replace packings (see pump manual).

O-ring in pump is worn or damaged. Replace o-ring (see pump manual).

Intake valve ball is not seating properly. Clean intake valve (see pump manual).

Intake valve ball is packed with mate-

rial.

Clean intake valve (see pump manual).

Engine speed is too low. Increase throttle setting (see operation man-

ual).

Clutch is worn or damaged. Adjust or replace clutch. Page 32.

Pressure setting is too low. Increase pressure (see operation manual).

Fluid filter, tip filter or tip is clogged or

dirty.

Clean filter (see gun manual).

Large pressure drop in hose with heavy

materials.

Use larger diameter hose and/or reduce overall

length of hose. Use of more than 100 ft of 1/4

in. hose significantly reduces performance of

sprayer. Use 3/8 in. hose for optimum perfor-

mance (50 ft minimum).

Excessive paint leakage into throat

packing nut

Throat packing nut is loose. Remove throat packing nut spacer. Tighten

throat packing nut just enough to stop leakage.

Throat packings are worn or damaged. Replace packings (see pump manual).

Displacement rod is worn or damaged. Replace rod (see pump manual).

Fluid is spitting from gun Air in pump or hose. Check and tighten all fluid connections. Rep-

rime pump (see operation manual).

Tip is partially clogged. Clear tip (see gun manual).

Fluid supply is low or empty. Refill fluid supply. Prime pump (see operation

manual). Check fluid supply often to prevent

running pump dry.

Pump is difficult to prime Air in pump or hose. Check and tighten all fluid connections.

Reduce engine speed and cycle pump as

slowly as possible during priming.

Intake valve is leaking. Clean intake valve. Be sure ball seat is not

nicked or worn and that ball seats well. Reas-

semble valve.

Pump packings are worn. Replace pump packings (see pump manual).

Paint is too thick. Thin the paint according to the supplier's rec-

ommendations.

Engine speed is too high. Decrease throttle setting before priming pump

(see operation manual).

Clutch squeaks each time clutch

engages

Clutch surfaces are not matched to

each other when new and may cause

noise.

Clutch surfaces need to wear into each other.

Noise will dissipate after a day of run time.

High engine speed at no load Misadjusted throttle setting. Reset throttle to 3300 engine rpm at no load.

Worn engine governor. Replace or service engine governor.

Gallon counter not working Bad sensor, broken or disconnected

wire. Displaced or missing magnet.

Check connections. Replace sensor or wire.

Reposition or replace magnet.

No display, sprayer operates Display damaged or has bad connec-

tion.

Check connections. Replace display.

Problem Cause Solution

Troubleshooting

24 332919C

Fluid Pump Runs Constantly

1. Perform Pressure Relief Procedure (page 21),

turn prime valve forward to SPRAY position, and

turn power switch OFF.

2. Remove control box cover.

Troubleshooting Procedure:

With a pressure gauge plumbed into the paint

hose, start the engine. Turn pump switch ON.

Does sprayer exceed maximum pressure?

Pump problem. See the proper fluid pump

manual for the sprayer for further trouble-

shooting procedures.

Disconnect clutch wires from control board (see

diagram, page 29). Does the pump stop run-

ning?

Mechanical problem in the clutch pinion as-

sembly (clutch may be close to the rotor).

Make sure clutch wires are plugged in (see dia-

gram, page 29). Do the clutch test points read

10-18 DC volts?

Check for a short from the two clutch wires

to the frame. If shorted, repair or replace

faulty wire.

Unplug transducer from control board.

Bad transducer.

Replace and test with a new one.

Replace the control board.

YES

Troubleshooting

332919C 25

Control Board Malfunction

Troubleshooting Procedure

(see following page for actual steps):

Go to step 5.

Does the

clutch

engage?

Go to step 2.

Do you have

proper engine

voltage?

Go to step 4.

Is 1-3 Ohms

reading pres-

ent?

Mechanical

problem. Repair

or replace

clutch/pinion

assembly.

Replace the

potentiometer.

Go to step 3.

Is 10-12

VDC

present?

Check wiring

from J1 and J2

for proper con-

nection. If proper

connection is

detected, repair

or replace engine

generator.

If low resistance is

present in step 4,

the problem is a

shorted field.

Replace pinion.

If an open in the

wiring is present,

check pinion

wiring

connections.

Connect

a test

transducer to

the board.

Does the

clutch

engage?

Go to step 1.

Does switch

test positive?

Replace the

switch.

Remove control box cover. Turn

sprayer ON. Observe control board

Green and Red LED lights.

No light

Once Normal operation

Red light on

continuously

Control board

commanding

engine to run

Green light on

continuously

WatchDog

enabled

Flashing See error code

section for further

troubleshooting

Red light on

continuously with

potentiometer

OFF after a

replacement

board is installed

Model not

selected

YES

NO NO

YES

Replace

the

control

board.

YES

Replace

the

transducer.

YES

Troubleshooting

26 332919C

Control Board Malfunction (Steps)

BEEP

12 -20 AC

10-12 DC

J10

J4J3

J1J2

LED

D12

1-3 ohms

STEP 1.

Turn engine

OFF and set

meter to

continuity.

To Ground

STEP 3.

Leave engine

running and turn

switch ON. Turn

potentiometer to

high and set

meter to DC

volts.

STEP 2.

Turn engine

ON. Set meter

to AC volts and

connect wires

to control

board.

On/Off Switch

To Clu t c h

Field

To Engine

Control

Board

WatchDog

Premium Display Board

Potentiometer

Transducer

Clutch Test Points

Pinion

Assembly

Drive

Housing

Pump

On/Off

Switch Engine

Generator

Control

Board

Clutch Test Points

Clutch

Field

Control

Board

Control

Board

Control

Board

Clutch

Field

STEP 5.

Turn engine

ON and turn

switch ON.

STEP 4.

Turn engine

OFF and

unplug

clutch wires.

Set meter to

Ohms.

ti14938a ti14939a ti14940a

ti14943a

ti14942a

ti14941a

Troubleshooting

332919C 27

Convertible Electric Motor Will Not Run

Troubleshooting Procedure

(see following page for actual steps):

See Step 1. Is there

over 100 AC volts?

See step 2. Is there

over 100 AC volts?

Replace the power switch.

See Step 3. Is there

over 100 DC volts?

See engine test section. Replace engine

control board.

YES

Repair or replace

the power cord.

See Step 4. Is there

continuity through the

thermal sensor?

If engine is hot, let

cool and retest. If

step 4 still shows an

open, replace engine.

Troubleshooting

28 332919C

Convertible Electric Motor Will Not Run (Steps)

TS TS

+M -M

TS TS

+M -M

BEEP

TS TS

+M -M

100 + DC

STEP 1.

Plug in cord and turn

switch ON. Connect

wires to control board

and turn meter to AC

volts.

STEP 2.

Plug in cord and turn

switch ON. Connect

wires to control board

and turn meter to AC

volts.

STEP 3.

Plug in cord and turn

switch ON. Turn

meter to DC volts.

STEP 4.

Check the engine ther-

mal sensor (meter

should read continuity).

Note: engine should

be cooled down. Turn

meter to continuity test.

Black White

Electric Engine Control Board Electric Engine Control Board

Engine

Control

Board

Black White

Black to

power cord

Electric

Engine Electric

Engine

Yellow Yell ow

Transformer

Jack

Ground

Black

White

Engine Control Board

Power Cord

Black to Tips

White to Barrel

AC power to

control board

ti14922a

ti14923a

ti14924a

ti14921a

ti14920a

Engine

Control

Board

Electric

Engine

Troubleshooting

332919C 29

Convertible Electric Motor Runs -

No AC Output to Sprayer Control Board

Troubleshooting Procedure

(see following page for actual steps):

See step 1.

Is there over 10-20

AC volts?

YES

See step 2.

Is there continuity?

Repair or replace

the power cord.

See the sprayer

control board trou-

bleshooting in this

manual.

See step 3.

Is there continuity?

Repair or replace

the power cord.

See step 4.

Is there over 100

AC volts?

Repair or replace

wire splice(s) on

the power cord

wires.

See step 5.

Is there over

10-20 AC volts.

Replace transformer.

Replace cord jack.

Troubleshooting

30 332919C

Convertible Electric Motor Runs - No AC Output to Sprayer Control Board (Steps)

10-20 AC

BEEP

TS TS

+M -M

10-20 AC

BEEP

STEP 1.

Plug in cord and turn

switch ON. Connect

wires to transformer

and power cord. Turn

meter to AC volts.

White to barrel

Power Cord

Engine Control Board

STEP 2.

Check AC power cord

for an open wire. Turn

meter to continuity

test. Meter should

read continuity.

STEP 4.

Plug in cord and turn

switch ON. Partially

connect wires to

splice. Turn meter to

AC volts.

STEP 3.

Check AC power

cord for an open

wire. Turn meter to

continuity test.

Meter should read

continuity.

STEP 5.

Plug in cord and

turn switch ON.

Partially connect

wires to splice.

Turn meter to AC

volts.

Black to tips

AC power to

control board

Jack

Transformer

White to barrel

Power Cord

Black to tips

AC power to

control board

White to barrel

Black to tips

White to barrel

Black to tips

Power Cord

AC power to

control board

Power Cord

AC power to

control board

Jack

Transformer

Black

White

Electric

Engine

Ground

Transformer

Black

Jack

Electric Engine Control Board

Black White

White

Power

Cord

ti14927a

ti14929a

ti14928a

ti14930a

ti14926a

ti14925a

Digital Display Messages

332919C 31

Digital Display Messages

•Digital messages are not available on all sprayers

•Blinking LED total count equals digital error code

i.e., two blinks is the same as E=02

* Error codes also appear on control board as a blinking red

LED. LED is an alternate to digital messages.

1. Remove two screws (71) and swing down cover (130).

2. Start engine. Blink count is the same as error code(E=0X).

After a fault, follow these steps to restart sprayer:

1. Correct fault condition

2. Turn sprayer OFF

3. Turn sprayer ON

DISPLAY* SPRAYER OPERA-

TION

INDICATION ACTION

No Display Sprayer may be

pressurized.

Loss of power or display

not connected.

Check power source. Relieve pressure before repair

or disassembly. Verify display is connected.

Sprayer may be

pressurized.

Pressure less than

200 psi (14 bar, 1.4 MPa).

Increase pressure as needed.

Sprayer is pressurized.

Power is applied.

(Pressure varies with

tip size and pressure

control setting).

Normal operation. Spray

Sprayer stops. Engine

is running.

Exceeded pressure limit. 1. Check fluid path for clogs, such as clogged filter.

2. Open prime valve and gun if running AutoClean.

3. Use Graco paint hose, 1/4 in. x 50 ft minimum.

Smaller hose or metal braid hose may result in

pressure spikes.

4. Replace transducer if fluid path is not clogged

and proper hose is used.

Sprayer stops. Engine

is running.

Pressure transducer faulty,

bad connection or broken

wire.

1. Check transducer connection.

2. Disconnect and reconnect transducer plug to

ensure good connection with control board

socket.

3. Open prime valve. Replace sprayer transducer

with known good transducer and run sprayer.

Replace transducer if sprayer runs or control

board if sprayer does not run.

Sprayer stops. Engine

is running.

High clutch current. 1. Check wiring connections.

Measure: 1.2 + 0.2

(GMAX II 3900);

1.7 + 0.2 Ω (GMAX II 5900/ 7900 & TexSpray

7900HD) across clutch field at 70°F.

3. Replace clutch field assembly.

(with constant

green LED)

Sprayer stops. Engine

is running.

Loss of paint to pump or

severe pressure loss.

1. Check for empty paint condition, clogged inlet

strainer, failed pump or severe leak.

2. Reduce pressure and turn pump switch OFF

and ON to restart pump.

3. WatchDog function can be deactivated by

turning WatchDog switch OFF.

Sprayer stops. Engine

is running.

Pressure greater than

2000 psi (138 bar, 14 MPa)

while in Flush Timer Mode.

1. Open prime valve and gun.

2. Verify no flow obstructions or clogged filter.

Pinion Assembly/Clutch Armature/Clamp

32 332919C

Pinion Assembly/Clutch Armature/Clamp

Pinion Assembly/Clutch Armature Removal

Pinion Assembly

If pinion assembly (29) is not removed from clutch hous-

ing (19), do 1. through 3. Otherwise, start at 4.

1. Remove drive housing.

2. Disconnect clutch cable connectors from inside of

pressure control.

a. Remove two screws (71) and swing down cover

(130a).

b. Disconnect engine leads from board to engine.

c. Remove strain reliefs 130r and 123.

3. Remove four screws (36) and pinion assembly (29).

4. Place pinion assembly (29) on bench with rotor side

up.

5. Remove four screws (28) and lock washers (24).

Install two screws in threaded holes (E) in rotor.

Alternately tighten screws until rotor comes off.

6. Remove retaining ring (29b).

7. Turn pinion assembly over and tap pinion shaft

(29a) out with plastic mallet.

Clutch Armature

8. Use an impact wrench or wedge something

between clutch armature (25) and clutch housing to

hold engine shaft during removal.

9. Remove four screws (23) and lock washers (24).

10. Remove armature.

ti5480a

ti5481a

ti5987b

29b

29a

ti5482a

29d







TIA

Pinion Assembly/Clutch Armature/Clamp

332919C 33

Installation

Clutch Armature

1. Lay two stacks of two dimes on smooth bench sur-

face.

2. Lay armature (25) on two stacks of dimes.

3. Press center of hub (26) down to bench surface.

4. Install armature (25) on engine drive shaft.

5. Install four screws (23) and lock washers (24) with

torque of 125 in-lb.

Pinion Assembly

1. Check o-ring (29d) and replace if missing or dam-

aged.

2. Tap pinion shaft (29a) in with plastic mallet.

3. Install retaining ring (29b) with beveled side facing

up.

4. Place pinion assembly on bench with rotor side up.

5. Apply thread sealant to screws. Install four screws

(28) and lock washers (24). Alternately torque

screws to 125 in-lb until rotor is secure. Use

threaded holes to hold rotor.

6. Install pinion assembly (29) with four screws (36)

and washers (37).

7. Connect clutch cable connectors to inside of pres-

sure control.

Clamp Removal

1. Remove engine.

2. Drain gasoline from tank according to Honda man-

ual.

3. Tip engine on side so gas tank is down and air

cleaner is up.

4. Loosen two screws (24) on clamp (22),

5. Push screwdriver into slot in clamp (22) and remove

clamp.

Clamp Installation

1. Install engine shaft key (18).

2. Tap clamp (22) onto engine shaft (A). Maintain

dimension shown note 2. Chamfer must face

engine.

3. Check dimension: Place rigid, straight steel bar (B)

across face of clutch housing (19). Use accurate

measuring device to measure distance between bar

and face of clamp. Adjust clamp as necessary.

Torque two screws (24) to 125 ±10 in-lb (14 ±1.1

N•m).

0.12+01 in (3.0+.25 mm)

25 26

dimes

ti6321a ti6199a

















TIA

1Face of clutch housing

1.550 ± .010 in. (39.37 ± .25 mm) - GMAX 3400 and 3900

2.612 ± .010 in. (66.34 ± .25 mm) - GMAX 5900 and 7900

Torque to 125 ±.10 in-lb (14 ±1.1 N•m)

Chamfer this side

Technical Data

34 332919C

Technical Data

3400 Models

U.S. Metric

Engine

Honda GX120 Engine

ANSI Power Rating @ 3600 rpm 4.0 Horsepower 3.0 kW

Sprayer

Maximum Working Pressure 3300 psi 228 bar, 22.8 MPa

Maximum Delivery Rating 0.75 gpm 2.84 lpm

Inlet Paint Strainer 12 mesh (1523 micron)

stainless steel screen, reusable

12 mesh (1523 micron)

stainless steel screen, reusable

Outlet Paint Filter 60 mesh (250 micron)

stainless steel screen, reusable

60 mesh (250 micron)

stainless steel screen, reusable

Pump Inlet Size 1 1/4-12 UNF-2A 1 1/4-12 UNF-2A

Fluid Outlet Size 1/4 npsm from fluid filter 1/4 npsm from fluid filter

Maximum Tip Size: 1 Gun with 0.027 in. tip 1 Gun with 0.027 in. tip

Dimensions

Weight: 89 lb 40.5 kg

Height (handle extended): 40.8 in. 103.6 cm

Length (handle extended): 35.0 in. 88.9 cm

Width: 22.3 in. 56.6 cm

Wetted parts

zinc- and nickel-plated carbon steel, PTFE, nylon, polyurethane, UHMW,

fluoroelastomer, acetal, leather, aluminum, tungsten carbide,

stainless steel, chrome plating

Noise Level:

Sound Power 100 dBa per ISO 3744 100 dBa per ISO 3744

Sound Pressure 86 dBa measured at 3.1 ft 86 dBa measured at 1 m

Technical Data

332919C 35

3900 Models

U.S. Metric

Engine

Honda GX120 Engine

ANSI Power Rating @ 3600 rpm 4.0 Horsepower 3.0 kW

Sprayer

Maximum Working Pressure 3300 psi 228 bar, 22.8 MPa

Maximum Delivery Rating 1.25 gpm 4.73 lpm

Inlet Paint Strainer 8 mesh (2589 micron)

stainless steel screen, reusable

8 mesh (2589 micron)

stainless steel screen, reusable

Outlet Paint Filter 60 mesh (250 micron)

stainless steel screen, reusable

60 mesh (250 micron)

stainless steel screen, reusable

Pump Inlet Size 1-5/16-12 UN-2A 1-5/16-12 UN-2A

Fluid Outlet Size 1/4 npsm from fluid filter 1/4 npsm from fluid filter

Maximum Tip Size:

1 Gun with 0.036 in. tip 1 Gun with 0.036 in. tip

2 Guns with 0.023 in. tip 2 Guns with 0.023 in. tip

3 Guns with 0.018 in. tip 3 Guns with 0.018 in. tip

Dimensions

Weight:

GMAX 3900 Standard 106 lb 48.2 kg

GMAX 3900 Lo-Boy 123 lb 55.9 kg

GMAX 3900 ProContractor 133 lb 60.5 kg

GMAX 3900 Rental Pro 360G 106 lb 48.2 kg

Height:

GMAX 3900 Standard 40.8 in. 103.6 cm

GMAX 3900 Lo-Boy 26.4 in. 67.1 cm

GMAX 3900 ProContractor 38.3 in. 97.3 cm

GMAX 3900 Rental Pro 360G 40.8 in. 103.6 cm

Length:

GMAX 3900 Standard 38.3 in. 97.3 cm

GMAX 3900 Lo-Boy 46.9 in. 119.1 cm

GMAX 3900 ProContractor 32.3 in. 82.0 cm

GMAX 3900 Rental Pro 360G 38.3 in. 97.3 cm

Width:

GMAX 3900 Standard 22.3 in. 56.6 cm

GMAX 3900 Lo-Boy 24.4 in. 62.0 cm

GMAX 3900 ProContractor 22.3 in. 56.6 cm

GMAX 3900 Rental Pro 360G 22.3 in. 56.6 cm

Wetted parts

zinc- and nickel-plated carbon steel, PTFE, nylon, polyurethane, UHMW,

fluoroelastomer, acetal, leather, aluminum, tungsten carbide,

stainless steel, chrome plating

Noise Level:

Sound Power 105 dBa per ISO 3744 105 dBa per ISO 3744

Sound Pressure 96 dBa measured at 3.1 ft 96 dBa measured at 1 m

Technical Data

36 332919C

5900 Models

U.S. Metric

Engine

Honda GX160 Engine

ANSI Power Rating @ 3600 rpm 5.5 Horsepower 4.1 kW

Sprayer

Maximum Working Pressure 3300 psi 228 bar, 22.8 MPa

Maximum Delivery Rating 1.6 gpm 6.06 lpm

Inlet Paint Strainer 8 mesh (2589 micron)

stainless steel screen, reusable

8 mesh (2589 micron)

stainless steel screen, reusable

Outlet Paint Filter 60 mesh (250 micron)

stainless steel screen, reusable

60 mesh (250 micron)

stainless steel screen, reusable

Pump Inlet Size 1-5/16-12 UN-2A 1-5/16-12 UN-2A

Fluid Outlet Size 1/4 npsm from fluid filter 1/4 npsm from fluid filter

Fluid Outlet Size (5900 IronMan and 5900HD) 3/8 npsm from fluid filter 3/8 npsm from fluid filter

Maximum Tip Size:

1 Gun with 0.043 in. tip 1 Gun with 0.043 in. tip

2 Guns with 0.029 in. tip 2 Guns with 0.029 in. tip

3 Guns with 0.023 in. tip 3 Guns with 0.023 in. tip

4 Guns with 0.019 in. tip 4 Guns with 0.019 in. tip

Dimensions

Weight:

GMAX 5900 Standard 138 lb 62.7 kg

GMAX 5900 Lo-Boy 144 lb 65.5 kg

GMAX 5900 ProContractor 160 lb 72.7 kg

GMAX 5900 Convertible, Standard 167 lb 75.9 kg

GMAX 5900 IronMan 160 lb 72.7 kg

TexSpray 5900HD ProContractor 164 lb 74.5 kg

TexSpray 5900HD Standard 142 lb 64.5 kg

Height:

GMAX 5900 Standard 40.5 in. 102.9 cm

GMAX 5900 Lo-Boy 27.2 in. 69.1 cm

GMAX 5900 ProContractor 38.0 in. 96.5 cm

GMAX 5900 Convertible, Standard 43.8 in. 111.3 cm

GMAX 5900 IronMan 38.8 in. 98.6 cm

TexSpray 5900HD ProContractor 38.0 in. 98.6 cm

TexSpray 5900HD Standard 40.5 in. 102.9 cm

Length:

GMAX 5900 Standard 37.7 in. 95.8 cm

GMAX 5900 Lo-Boy 46.9 in. 119.1 cm

GMAX 5900 ProContractor 32.7 in. 83.1 cm

GMAX 5900 Convertible, Standard 33.0 in. 83.8 cm

GMAX 5900 IronMan 40.4 in. 102.6 cm

TexSpray 5900HD ProContractor 32.7 in. 83.1 cm

TexSpray 5900HD Standard 37.7 in. 95.8 cm

Width: 24.4 in. 62.0 cm

Wetted parts

zinc- and nickel-plated carbon steel, PTFE, nylon, polyurethane, UHMW,

fluoroelastomer, acetal, leather, aluminum, tungsten carbide,

stainless steel, chrome plating

Noise Level:

Sound Power 105 dBa per ISO 3744 105 dBa per ISO 3744

Sound Pressure 96 dBa measured at 3.1 ft 96 dBa measured at 1 m

Technical Data

332919C 37

7900 Models

U.S. Metric

Engine

Honda GX200 Engine

ANSI Power Rating @ 3600 rpm 6.5 Horsepower 6.5 kW

Sprayer

Maximum Working Pressure 3300 psi 228 bar, 22.8 MPa

Maximum Delivery Rating 2.2 gpm 8.33 lpm

Inlet Paint Strainer 8 mesh (2589 micron)

stainless steel screen, reusable

8 mesh (2589 micron)

stainless steel screen, reusable

Outlet Paint Filter 60 mesh (250 micron)

stainless steel screen, reusable

60 mesh (250 micron)

stainless steel screen, reusable

Pump Inlet Size 1-5/16-12 UN-2A 1-5/16-12 UN-2A

Fluid Outlet Size 3/8 npsm from fluid filter 3/8 npsm from fluid filter

Maximum Tip Size:

1 Gun with 0.048 in. tip 1 Gun with 0.048 in. tip

2 Guns with 0.035 in. tip 2 Guns with 0.035 in. tip

3 Guns with 0.027 in. tip 3 Guns with 0.027 in. tip

4 Guns with 0.023 in. tip 4 Guns with 0.023 in. tip

Dimensions

Weight:

GMAX 7900 Standard 148 lb 67.3 kg

GMAX 7900 Lo-Boy 154 lb 70.0 kg

GMAX 7900 ProContractor 167 lb 75.9 kg

GMAX 7900 IronMan 168 lb 76.4 kg

TexSpray 7900HD Pro 182 lb 82.7 kg

TexSpray 7900HD Standard 153 lb 69.5 kg

TexSpray 7900HD IronMan 175 lb 79.5 kg

Height:

GMAX 7900 Standard 40.5 in. 102.9 cm

GMAX 7900 Lo-Boy 27.2 in. 69.1 cm

GMAX 7900 ProContractor 38.0 in. 96.5 cm

GMAX 7900 IronMan 38.8 in. 98.6 cm

TexSpray 7900HD Pro 38.0 in. 96.5 cm

TexSpray 7900HD Standard 40.5 in. 102.9 cm

TexSpray 7900HD IronMan 38.8 in. 98.6 cm

Length:

GMAX 7900 Standard 38.1 in. 96.8 cm

GMAX 7900 Lo-Boy 46.9 in. 119.1 cm

GMAX 7900 ProContractor 33.3 in. 84.6 cm

GMAX 7900 IronMan 40.4 in. 102.6 cm

TexSpray 7900HD Pro 33.3 in. 84.6 cm

TexSpray 7900HD Standard 38.1 in. 96.8 cm

TexSpray 7900HD IronMan 40.4 in. 102.6 cm

Width: 24.4 in. 62.0 cm

Wetted parts

zinc- and nickel-plated carbon steel, PTFE, nylon, polyurethane, UHMW,

fluoroelastomer, acetal, leather, aluminum, tungsten carbide,

stainless steel, chrome plating

Noise Level:

Sound Power 105 dBa per ISO 3744 105 dBa per ISO 3744

Sound Pressure 96 dBa measured at 3.1 ft 96 dBa measured at 1 m

All written and visual data contained in this document reflects the latest product information available at the time of publication.

Graco reserves the right to make changes at any time without notice.

Original instructions. This manual contains English. MM 332919

Graco Headquarters: Minneapolis

International Offices: Belgium, China, Japan, Korea

GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA

www.graco.com

Revised July 2014

Graco Standard Warranty

Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in

material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty

published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by

Graco to be defective. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco’s written

recommendations.

This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by faulty

installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of

non-Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of Graco equipment with

structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture, installation, operation or

maintenance of structures, accessories, equipment or materials not supplied by Graco.

This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for verification of

the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The equipment will be returned

to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect in material or workmanship, repairs will

be made at a reasonable charge, which charges may include the costs of parts, labor, and transportation.

THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT

LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.

Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other remedy

(including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any other incidental or

consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the date of sale.

GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A

PARTICULAR PURPOSE, IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS OR COMPONENTS SOLD BUT NOT

MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco (such as electric motors, switches, hose, etc.), are subject to

the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assistance in making any claim for breach of these

warranties.

In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment hereunder, or

the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract, breach of warranty, the

negligence of Graco, or otherwise.

FOR GRACO CANADA CUSTOMERS

The Parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings entered into,

given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties reconnaissent avoir convenu que la

rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures judiciaires exécutés, donnés ou intentés, à la suite

de ou en rapport, directement ou indirectement, avec les procédures concernées.

Graco Information

For the latest information about Graco products, visit www.graco.com.

For patent information, see www.graco.com/patents.

TO PLACE AN ORDER, contact your Graco distributor or call 1-800-690-2894 to identify the nearest distributor.

Graco 332919C Gmax 3400 Ii 3900 5900 7900 And Texspray 5900Hd 7900Hd Users Manual 3400, 3900/5900/7900, 5900HD/7900HD Airless Sprayers Operation (English)

4af76202-da4b-4c1e-a455-9a706b20a3ac Graco Paint Sprayer 16W867 User Guide |

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