Central Hydraulics Trencher 93167 Users Manual

2015-02-05

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TRENCHER

93167
ASSEMBLY AND OPERATING INSTRUCTIONS

Due to continuing improvements, actual product may differ slightly from the product described herein.

3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our Web site at http://www.harborfreight.com
Copyright© 2005 by Harbor Freight Tools®. All rights reserved. No portion of this
manual or any artwork contained herein may be reproduced in any shape or
form without the express written consent of Harbor Freight Tools.
For technical questions and replacement parts, please call 1-800-444-3353.

Contents
Specifications................................................................................3
Safety Warnings and Precautions................................................4
Product Specific Safety Precautions.......................................5
Unpacking......................................................................................6
Assembly........................................................................................7
Hose Connection Diagram........................................................8
Purging Air From The Trencher................................................9
Transport.......................................................................................10
Locking the Boom in Place......................................................10
Setup..............................................................................................12
Engine Preparation..................................................................12
Attaching Leg Assembly..........................................................13
Operation.......................................................................................14
Starting the Engine..................................................................14
Digging Depth Adjustment......................................................15
Boom Controls..........................................................................15
Boom Operation.......................................................................15
Moving the Trencher.................................................................16
Maintenance..................................................................................17
Lubrication Points....................................................................18
Parts List.......................................................................................19
Assembly Diagram.......................................................................20

SKU 93167

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Specifications
Ripping Force

4,400 lbs. at the bucket

Digging Depth

7 feet maximum

Digging Reach

8 feet maximum

Hydraulic Rams

2 up and down, 1 right and left, 1 bucket movement

Hydraulic Pump

Single Stage; 2.7 GPM

Pump Stage

Single

Ram Diameter

1-1/4”

Hydraulic Oil Capacity

2.4 to 3.57 gallons

Operation Controls

4-arm control valves

Seat

32-1/2 (H) inches from floor

Frame Size

81-1/2” (L) x 37” (W); Main Beam: 4” (W) x 5-3/4” (H)

Wheel Base

58-3/4 inches

Wheel Load Capacity

780 lbs. each

Wheel Size

4.8-4.0-12

Bucket Load Capacity

1.24 cu. ft.

Bucket Size

12” (W) x 20” (L) (outside); 11-1/2” (W) x 12-1/4” (D) (inside)

Hose Ratings

20,000 PSI burst pressure; 10,000 PSI working pressure

Overall Towing Dimensions

12’ L x 5’ 7” W x 5’ 6” H

Engine

Towing Restrictions
Weight

9 HP Robin Subaru®: EX27 with overhead cam
- 4000 RPM (max.); 3600 (continuous)
- One cylinder, 4 cycle engine, 265-cc
- Gas tank: 1.59 gallon; Fuel: unleaded gas
- Oil capacity and type: 33.8 Fl. oz.; At 32~86°F: F-SAE 10W-30; 20W,
30W
- Starter: Recoil
This Trencher is not approved by the Dept. of Transportation for towing
on public roads. Check local laws for further restrictions on use.
1056 lbs.

Save This Manual
You will need the manual for the safety warnings and precautions, assembly instructions,
operating and maintenance procedures, parts list and diagram. Keep your invoice with this
manual. Write the invoice number on the inside of the front cover. Keep the manual and
invoice in a safe and dry place for future reference.

REV 05j; 07d; 07f

SKU 93167

For technical questions, please call 1-800-444-3353

Page

Safety Warnings and Precautions
WARNING: When using tool, basic safety precautions should always be followed to
reduce the risk of personal injury and damage to equipment.
Read all instructions before using this tool!
1.

Keep work area clean. Cluttered areas invite injuries.

Observe work area conditions. Keep work area well lighted and erect barricades or
use other means to prevent unauthorized personnel from entering the vicinity.

Keep children away. Children must never be allowed in the work area. Do not let them
handle machines, tools, or extension cords.

Store idle equipment. When not in use, tools must be stored in a dry location to inhibit
rust. Always lock up tools and keep out of reach of children.

Use the right tool for the job. Do not attempt to force a small tool or attachment to do
the work of a larger industrial tool. There are certain applications for which this tool was
designed. It will do the job better and more safely at the rate for which it was intended. Do
not modify this tool and do not use this tool for a purpose for which it was not intended.

Dress properly. Do not wear loose clothing or jewelry as they can be caught in moving
parts. Protective, electrically nonconductive clothes and nonskid footwear are recommended when working. Wear restrictive hair covering to contain long hair.

Always wear ANSI approved safety goggles, heavy work gloves, a hardhat, and
steel-toed heavy work boots when setting up or using this product.

Do not overreach. Keep proper footing and balance at all times. Do not reach over or
across running machines.

Maintain tools with care. Follow instructions for lubricating and changing accessories.
Inspect tool hydraulic hoses periodically and, if damaged, have them repaired by an authorized technician. The handles must be kept clean, dry, and free from oil and grease
at all times.

10. Remove adjusting keys and wrenches. Check that keys and adjusting wrenches are
removed from machine work surface before operating.
11. Avoid unintentional starting. Be sure the switch is in the Off position when not in
use.
12. Stay alert. Watch what you are doing, use common sense. Do not operate any tool when
you are tired.
13. Check for damaged parts. Before using any tool, any part that appears damaged should
be carefully checked to determine that it will operate properly and perform its intended
function. Check for alignment and binding of moving parts; any broken parts or mounting
fixtures; and any other condition that may affect proper operation. Any part that is damaged should be properly repaired or replaced by a qualified technician.
14. Replacement parts and accessories. When servicing, use only identical replacement
parts. Use of any other parts will void the warranty. Only use accessories intended for
SKU 93167

For technical questions, please call 1-800-444-3353

Page

use with this tool. Approved accessories are available from Harbor Freight Tools.
15. Do not operate tool if under the influence of alcohol or drugs. Read warning labels
if taking prescription medicine to determine if your judgment or reflexes are impaired
while taking drugs. If there is any doubt, do not operate the tool.
16. Maintenance. For your safety, service and maintenance should be performed regularly
by a qualified technician.

Product Specific Safety Precautions
1.

This unit can exert thousands of pounds of force and, if used improperly, can cause
broken bones, dismemberment, or death.

Avoid Fires. Flames or sparks near engine fuel can cause fire or explosion. Do not spill
fuel. If fuel is spilled, clean it up and do not start engine until fumes are gone. Do not
smoke while fueling or if near fuel or fumes. Stop engine before fueling. Do not fuel a hot
engine. Stop engine and let it cool off before checking or adding fuel.

Engine exhaust gases can kill. Vent exhaust outside if used indoors, or use outside. Use
away from any building air intakes. Avoid carbon monoxide poisoning from Engine
exhaust. Read Warning on page 12.

Moving parts can cause injury. Keep hands, hair, loose clothing, and tools away from
moving parts such as fans, belts, hydraulic rams, boom or boom extension, and bucket
assembly.

Avoid injury from hydraulic fluid. Hydraulic fluid under pressure can cause burns,
cuts, and other injuries if released due to a break in the hydraulic hose lines, or loose
fittings. If a break occurs, immediately turn Engine off. Inspect the lines carefully
for leakage; pinpoint leaks could result in hydraulic fluid being injected into the skin,
resulting in Serious personal injury.
Never check for a leak using your hands.

Use the Trencher on a proper surface. Locate on a flat, level, and solid surface that is
capable of supporting the weight of the Trencher, plus the load.

Avoid accidents while towing Trencher. Maximum speed while towing is 30 MPH.

Avoid damage to engine. Check oil level before each use. Add oil if necessary. Refer
to the engine service manual provided with this product.

Contact your local utility companies before beginning any project. Buried utility
lines may not be marked and, if struck, may cause severe personal injury or
death.

10. People with pacemakers should consult their physician(s) before using this product.
Electromagnetic fields in close proximity to a heart pacemaker could cause interference
to, or failure of the pacemaker. In addition, people with pacemakers should adhere to the
following:

- Caution is necessary when near the magneto or spark plug cables of a running engine.
SKU 93167

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Page

11. Always use in full accord with OSHA guidelines and safe workplace practices.
12. Keep all personnel not trained for and directly involved in the use of this item well
away from the work area. We recommend that only licensed drivers use this machine.
13. This unit is not designed for the demolition of buildings; a building may collapse
on the machine during demolition, causing damage to the machine and severe
injury to the operator.
14. Warning: This product contains or, when used, produces a chemical known to the
State of California to cause cancer and birth defects or other reproductive harm.
(California Health & Safety Code § 25249.5, et seq.)
Warning: The warnings, cautions, and instructions discussed in this instruction manual
cannot cover all possible conditions and situations that may occur. It must be understood by the operator that common sense and caution are factors which cannot be built
into this product, but must be supplied by the operator.

Check local laws before use.
Unpacking
When unpacking, check to make sure that all of the assemblies shown below are included. If
any parts are missing or broken, please call Harbor Freight Tools at the number on the cover
of this manual as soon as possible.

REV 07f
SKU 93167

For technical questions, please call 1-800-444-3353

Page

Assembly
1.

With the help of one or more assistants, use jacks (not included) to evenly raise the
Frame Assembly (90) & support with jack stands (not supplied). Then mount both Axles
and Hub Assembly (50) near the boom end of the frame, as shown at bottom. Secure
with Lock Pins (20).
Place a Tire (52) over the four studs on each Hub. Secure the Tires to the Hubs, using
four Lug Nuts (53) per Tire. Make sure that the lug nuts are snug and centered in the
holes. Inflate the tires to 65 PSI.

Lower the Trencher and remove the
jack stands. Block the tires while
you tighten the Lug Nuts. NOTE:
Make sure to tighten (torque) the
Clevis Pin
Lug Nuts to at least 90 Ft.-Lbs.
No. 1 (29)
4. Place the Seat (73) onto the tube at
the top of the Hydraulic Fluid Reservoir. Attach the Control Support (3) Boom
to the Frame Assembly (90) using Pivot (38)
four Hex Bolts (72). See illustration
at bottom of page.
Pin
NOTE: The Hydraulics of this unit are (42)
tested before shipment. There is
hydraulic fluid present in many components. Assemble
this unit in an area that will not be damaged by leaking
hydraulic fluid and it is recommended that you wrap rags
securely over the Hydraulic connectors on all the Cylinders (26) during assembly. Always wear splash-resistant
ANSI approved safety goggles and other protective gear
to prevent injury from leaking fluid.
5. Attach the Main Boom (36) to the Boom Pivot (38) using Pin
(42) through the bottom hole and Clevis Pin No. 1 (29) through
the upper hole. Secure both pins with Hair Pins (31); Pin (42)
requires one Hair pin on each end. See photo below. Other
people will need to assist in the process.
Hydraulic Fluid
Fill Plug (11)

Main
Boom
(36)

Clevis Pin No. 1 (29)
Pin
(42)

Control
Panel
(23)

Seat (73)

Engine (74)
Boom Extension (34)

Frame Assy. (90)
Mount Hitch
Coupler (58)
Here

Hydraulic Fluid
Reservoir

TOW CONFIGURATION
REV 05j; 07f

SKU 93167

For technical questions, please call 1-800-444-3353

Page

6.
7.

Mount the Boom Extension (34) to the Main Boom (36) using Pin (42), left, and Clevis
Pin No. 1 (29), top (shown on inset to the right). Secure both pins with Cotter Keys.
Attach the towing Hitch Coupler (58) to the Frame Assembly (90) under the Engine (74)
using Hex Bolts (75) and Hex Nuts (84). See illustration on previous page.

Hose Connection Diagram

Hydraulic Fluid
Reservoir
part of Frame (90)

Hydraulic
Pump (65)

Control
Panel (23)

Main Boom
Cylinder
Boom
Extension
Cylinder

Bucket
Control
Cylinder

Boom Swing
Cylinder

Connect, tighten, and check all hydraulic hose
fittings to the proper connections, as shown
above. Hoses and fittings are numbered. Securely tighten all fittings.
NOTE: NEVER use pipe thread seal tape on
hydraulic fittings.

Open the Hydraulic Fluid Fill Plug (11). Fill the Hydraulic Fluid Reservoir with 3.5 gallons of high quality hydraulic fluid. Check that the Fluid level is between the lines on the
attached Dipstick. Close the Hydraulic Fluid Fill Plug (11) securely.

SKU 93167

Assembly instructions continued on next page.
REV 07f
Page
For technical questions, please call 1-800-444-3353

10. Carefully review all assembly completed during the previous
steps. Most importantly:
- Check that all Pins are properly in place and that Hair Pins are securing all the
pins properly.
- Check that all hydraulic connections are correct and fully tightened.
- Check that the lug nuts are properly tightened.

Purging Air From The Trencher
The steps that follow move the boom through its full range of travel and help to flush
air from the hydraulics, helping to ensure better performance in the future.
11. Move the Trencher to a place with wide clearance and dirt that is free from all obstructions.
Contact your local utility companies to ensure that this test spot has no hidden
utility lines.
12. Set the trencher up in this spot and start the engine as described on the following pages.

WARNING: The hydraulic system is now pressurized. Use caution when near the
boom controls. Do not allow anyone to come near the boom or bucket. Nobody
except the operator should be in the vicinity of the machine during use.

13. Carefully remove all Safety Locking Pins (15) and disengage the Safety Latch (41).
14. Press forward on the Boom Swing Lever until the Boom stops moving, then pull back on
it until it moves fully in the other direction. Center the Boom.
15. Press forward on the Main Boom Lever until the Main Boom is fully raised. Then, press
Forward on the Boom Extension Lever until the Boom is fully extended.
16. Press forward on the Bucket Lever until the bucket is fully extended. Then pull back on
the lever to retract it fully.
17. Pull back on the Boom Extension Lever until the Boom Extension is pulled back all the
way. Pull back on the Main Boom Lever until the Main Boom is lowered completely.
18. Adjust the boom back to its rest position and replace all locking devices, see below.
19. Shut off the Engine, check the Hydraulic Fluid level and refill as necessary.

SKU 93167

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REV 07f
Page

Transport
Locking the Boom in Place
1: a. Use the Bucket Lever to line the hole on the Bucket Assembly (32) up with the hole on
the Boom Extension (34). Insert a Safety Locking Pin (15) and secure with a Hairpin
Clip (31).
b. Use the Boom Swing Lever to line up the hole in the Boom Pivot (38) with the Hole in
the Frame (90). Insert a Safety Locking Pin (15) and secure with a Hairpin Clip (51).
Safety Locking Pins (15)
c. Put the Boom into the Shallow Position (see
page 15) and raise it until the pin on the side of
the Main Boom (36) is close enough for the
Safety Latch (41) to swing over it. To use
the Safety Latch, pull out on the handle,
swing it over the pin, and lower it
over the pin, locking it in place.
2.

When transporting the Trencher, make sure your hitch
(not included) is compatible with the Hitch Coupler
(58). Follow all of the safety
warnings for towing in your
vehicle’s manual.
WARNING: The Hitch Coupler will only accept a 2
inch hitch ball.

To reduce friction between the hitch ball and Hitch
Coupler (58), apply a layer of heavy weight grease
over the hitch ball.

Safety Latch (41)

See illustration below. Temporarily remove the “R” Pin and Safety Pin. Then, pull up
on the Trigger and lift up on the Handle.

REV 07f
SKU 93167

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Page 10

With assistance, place the Hitch Coupler (58) over the vehicle’s hitch ball, pull the trigger,
push down on the Handle, and release the Trigger, making sure it locks in the slot. Pull
up and down on the Coupler to make sure the hitch ball is fitting snugly in the Coupler.
There should be no play between the hitch ball and Coupler. If there is play, tighten the
Adjustment Nut until no play is present. If the Adjustment Nut is too tight, the Handle
will not lock. WARNING! If the Hitch Coupler is not secured properly, the ball could
come loose while the Trencher is in motion, possibly causing property damage or
SERIOUS PERSONAL INJURY.

Make sure to attach each side of the Safety Chain (56) equally to the towing vehicle’s
rear bumper or frame.
HANDLE
TRIGGER
“R” PIN

HAN-

SAFETY PIN

Hitch Coupler (58)

ADJUSTMENT
NUT
SAFETY
CHAIN
(63)

HITCH BALL
(NOT INCLUDED)

Safety Chain (56)
7.

CAUTION! Care must be taken when backing up the Trencher. Only back up the
Trencher on a straight path. If the Trencher is allowed to turn off the straight path while
backing up, the Trencher could jackknife, cauing severe damage to the Trencher and to
the towing vehicle.

SKU 93167

For technical questions, please call 1-800-444-3353

REV 07f
Page 11

Setup
Warning: This engine-run Trencher must never be used indoors, in a house, or any
other sealed structure without proper ventilation. Carbon monoxide is produced during operation and is deadly in a closed environment. Early signs of Carbon Monoxide
poisoning resemble the flu, with headaches, dizziness, or nausea. If you have these
signs get fresh air immediately.

Engine Preparation
1.

Read and adhere to all Engine instructions and safety warnings in the Robin Subaru®
Operating Manual.

Place the Trencher outdoors where it will be used. This should be on a flat surface and
away from flammable materials.

Add 33.8 oz. (about two quarts) of oil to the Engine by removing the Dip Stick and adding
through its hole.

If the area temperature is above freezing, use F-SAE 10W-30 weight oil. If below freezing, use F-SAE 5W-30 weight oil. Use a siphon to avoid spilling the oil. Check the oil
level with the Dip Stick. It should be up to the “Full” mark. Carefully screw the plastic Dip
Stick back into the metal Engine crankcase to avoid stripping the plastic threads on the
Dip Stick.

Caution: Running the engine without oil will permanently damage the engine and void
its warranty.

: Risk of fire or explosion!
• Do not fill the Gas Tank while engine is hot; allow engine to cool before filling.
• Never use a damaged fuel tank!
• Never overfill!
4.

Fill the Gas Tank (outdoors) with up to 1-1/2 gallons of unleaded gasoline. Do not top-off
tank.

Remove the Oil Plug (89) from the Hydraulic Fluid Reservoir and verify that the reservoir is
properly filled with high quality hydraulic oil. Replace the Oil Plug and securely tighten.

REV 07f
SKU 93167

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Page 12

Attaching Leg Assembly
In order to use the Trencher, the Leg Assemblies must be installed next to the Main Boom
(36), and the Wheels (78) and Axle and Hub Assembly (50) moved the rear of the Trencher.
1.

On a flat earthen surface, start the engine and use the Boom Controls to first curl the
bucket towards the boom without touching the ground and then to force the Bucket Assembly (32) down to the ground forcing the Frame Assembly (90) to rise. Lift the Tires
just off the ground and stop. Refer to Starting the Engine and Boom Controls on the following pages.

Make sure that the controls will not be touched or bumped and that the Trencher
will remain motionless. Never place any part of your body under the
trencher, especially if it is raised in this fashion.

When the Tires (52) are off the ground, remove the Wheel (78) and Axle Assembly (50)
to the operator’s left, and replace with the Left Extension Leg (45) and Leg Assembly
(24). Make sure that the Extension Leg is directed so that it turns toward the Bucket end
of the Trencher. Secure with Lock Pin No. 1 (20). Repeat procedure for the right side.
Raise Bucket Assembly again to lower onto Leg Assembly, and turn Engine off.

Using a jack (not included) and assistance, raise up the engine end of the trencher and
disconnect from the towing hitch, if you have not already done so. Slide the Wheels (78)
and Axle Assembly (50) into the engine end of the Frame (90). Secure each axle with
Lock Pin No. 2 (82). The completed assembly should resemble the illustration below.

Leg Assembly
(24)

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REV 07f
Page 13

Operation
Starting the Engine
1.

Check oil level by pulling out the Oil Dip Stick. Add oil if necessary. Never run with low
or no oil.

Open the Gas Valve by pushing it down until it stops. See photo on the next page.

Turn the On/Off Switch to the On position.

If the Engine is cold, pull the Choke Control out. Otherwise, continue with the next
step.

Slowly pull out on the Starter Pull Cord until it engages, then pull out fast.

The Engine should start. Try again in a few minutes if it does not start immediately. Refer
to the Robin Subaru® Operator’s Manual under Troubleshooting if problems persist. Let
the engine run for five minutes to warm up and build up pressure in the hydraulic lines.
If any hydraulic leaks are detected,
immediately turn the Engine Off.

After the Engine is warm, push
in the Choke Control to open
choke.

Push the Throttle Control to
the left for full speed.

To turn off the Engine,
turn the On/Off Switch
to the Off position.

Choke
Control
Gas
Valve

Throttle
Control
On/Off
Switch
Starter
Pull Cord

Warning: The hydraulic
system is now pressurized. Do not move Boom
Controls until ready to
begin digging. Stay clear
of Boom.

Warning: This engine-run Trencher must never be used indoors, in a house, or any
other sealed structure without proper ventilation. Carbon monoxide is produced during operation and is deadly in a closed environment. Early signs of Carbon Monoxide
poisoning resemble the flu, with headaches, dizziness, or nausea. If you have these
signs get fresh air immediately.

SKU 93167

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REV 07f
Page 14

Digging Depth Adjustment
1.

This Trencher can be used with two arm positions. See the illustration below.

While the end of the boom is being supported: Remove the Pin (42), align the cylinder
with the appropriate hole, insert the Pin (42), and secure it with the Hair Pin (51).
Cylinder (26)
Main Boom
(36)

Pin (42)
Main Boom
(36)
Boom
Pivot (38)

Boom
Pivot (38)

Boom Controls
Controls Operate by Pushing
In or Pulling out

Bucket: IN - OUT
Boom Extension: IN - OUT
Main Boom: IN - OUT
Boom Swing: LEFT - RIGHT

Boom Operation
1.

With the Engine running, sit in the operator Seat (73) and pull the Main Boom handle
control backward to raise the Main Boom (36).

Pull back on the Boom Extension handle control to raise the Boom Extension (34).

Push forward on the Bucket handle control to open the Bucket Assy (32).
REV 07f

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Page 15

Push forward on the Main Boom handle to lower the Main Boom until the Bucket Assy.
reaches the ground.

Pull back on the Bucket handle control until the Bucket scoops up the dirt.

Pull back on both the Main Boom and Boom Extension control handles to raise the
load.

Press in, or pull out, the Boom Swing control handle to move the Bucket left or right.
Note: The Boom’s travel is 60 degrees left and 60 degrees right.

Press in on the Bucket control handle to dump the load.

Moving the Trencher
1.

One method for moving the trencher around the work area is by using the Boom to push
the Trencher across the ground.

WARNING: This technique can be difficult to control and should only be attempted by
an experienced operator. The stability of the Trencher is totally dependent on the
stability of the ground that the trencher is working on; if you choose to move the
Trencher in this way, do so at your own risk.
2.

Swing the Bucket inward so that the front of the bucket, not the scoop, is facing downward. Press the Bucket down onto a solid piece of ground and press down hard enough
to raise the front legs off the ground.

Carefully operate the controls to move the boom and slowly roll yourself in the desired
direction. Be certain that the Tires and the new resting places for the Legs all remain on solid, stable ground.

After you have repositioned the Trencher, raise the Boom to place the Legs back into the
ground. The procedure can be repeated to move farther.

REV 05j; 07f
SKU 93167

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Page 16

Maintenance
WARNING! Before performing any inspection, maintenance, or cleaning procedures,
disconnect the wire to the Spark Plug of the Engine, and release any remaining pressure
in hydraulic lines by operating the Boom Controls until there is no movement.
1.

Before each use, inspect the general condition of the Trencher. Check for loose screws,
misalignment or binding of moving parts, cracked or broken parts, damaged hydraulic
hoses, and any other condition that may affect its safe operation. If abnormal noise or
vibration occurs, have the problem corrected before further use. Do not use damaged
equipment.

Check Engine oil level before each use.

With engine off, periodically check hydraulic oil level. Fill when necessary.

For Engine maintenance and troubleshooting, refer to the Robin Subaru® Engine Operator’s Manual.

After the Engine has cooled down, remove the remaining gasoline into a gasoline container before storing the unit.

After the first five hours of use, drain and replace the Engine oil. After that, replace the
oil after every 25 hours of use.

Yearly, or more often if used on a regular basis, change the Hydraulic Fluid. To do so:

a. Locate the Trencher on a level piece of ground to allow the Fluid to drain properly. Allow
the trencher to cool off.
b. Place an appropriate container underneath (that can hold at least 4 gallons) and remove
the Oil Plug (89). Allow the fluid to drain.
c. Replace and tighten the Oil Plug. Refill the Fluid to near the top line on the Dipstick (11),
about 3.5 gallons.
d. Purge air from the hydraulics: Follow steps 11 through 19, under Purging Air From the
Trencher, on page 9.
8.

This item includes 4 seal kits for the Cylinders (26).
These seal kits are intended for installation only by a qualified technician.
Inexperienced replacement may result in damage to the seals and/or hydraulics, creating
the possibility of a hazardous hydraulic failure.

Periodically, apply grease to all boom axis-movement points using a grease gun with a
pin-type tip and zerk-type fitting.

REV 05j; 07f
SKU 93167

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Page 17

Lubrication Points

10.

Store in a clean and dry location.

PLEASE READ THE FOLLOWING CAREFULLY

THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS DIAGRAM IN THIS
MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER NOR DISTRIBUTOR MAKES
ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT OR THAT HE OR SHE IS QUALIFIED TO REPLACE
ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY
STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED
AND LICENSED TECHNICIANS AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS
THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.

SKU 93167

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REV 05j; 07f
Page 18

PARTS LIST
Part

Q’ty

Part

Q’ty

Part

NUT 3/8”

Description

BOOM EXTENSION

Description

PUMP KEY

Description

Q’ty
1

SPRING WASHER 3/8”

CLEVIS PIN NO.2

COUPING-PUMP
SIDE

CONTROL SUPPORT

MAIN BOOM

HEX SCREW

WASHER 3/8”

LUBRICATION FITTING
1/4”

MOUNTING BRACKET-PUMP

HEX HD.BOLT 3/8”*1-1/8”

BOOM PIVOT

ENGINE KEY

SCUTCHEON

HOSE ASSEMBLY NO.8

HEX HD.BOLT
5/16”*1-3/4”

HOSE ASSEMBLY NO.6

HOSE ASSEMBLY NO.9

SEAT

HEX CONNECTOR

SAFETY LATCH

ENGINE

CONTROL VALVE

HEX HD.BOLT 5/16”

SEAT BOTTOM

SPRING

COUPING-ENGINE
SIDE

FILL PLUG/ DIPSTICK

WASHER 15/16”

HAIR PIN CLIP

SPRING WASHER 5/16”

EXTENSION LEG(LEFT)

WHEEL

ENTER HOSE ASSEMBLY
NO.2

HOSE ASSEMBLY NO.7

LOCK PIN

HEX BOLT 3/8”*1”

HEX NUT 5/16”

WEIGHT BLOCK

SAFETY LOCKING PIN

HEX HD.BOLT 5/16”*3/4

HEX HD.BOLT
5/8”*4-3/4”

SPRING HAIR PIN CLIP

COVER

LOCK PIN NO.2

HOSE ASSEMBLY NO.4

AXLE & HUB ASSEMBLY

WASHER 5/8”

HOSE ASSEMBLY NO.3

HAIR PIN CLIP 1/8”*1-3/4”

NUT 5/8”

EXTENSION LEG(RIGHT)

TIRE

90 ELBOW FITTING
NO.2

LOCK PIN NO.1

LUG NUT

HEX HD.BOLT
5/16”*1-1/8”

HOSE ASSEMBLY NO.1

OUTLET HOSE

“O”RING SEAL

HOSE ASSEMBLY NO.5

HOSE CLAMP

OIL FILTER

CONTROL PANEL

SAFETY CHAIN

OIL PLUG R3/8”

LEG ASSEMBLY

HEX NUT 3/8”

FRAME ASSEMBLY

90 ELBOW FITTING NO.1

HITCH COUPLER

CLEVIS PIN NO.3

CYLINDER

NUT 1/2”

WASHER

CONNECTING ROD

HEX HD.BOLT 3/8”*2-3/4”

PIVOT PIN

CONNECTING ROD

HEX HD.BOLT 3/8”*3-1/2”

BUSHING

CLEVIS PIN NO.1

HEX HD.BOLT 5/16”*1”

SNAP RING

BUSHING

WASHER

SPRING WASHER
1/4”

HAIR PIN CLIP 3/16”*25/16”

90 ELBOW FITTING NO.4

HEX HD.BOLT
1/4”*1/2”

BUCKET ASSEMBLY

HYDRAULIC PUMP

SPRING HAIR PIN
CLIP

LUBRICATION FITTING
5/16”

90 ELBOW FITTING NO.3

NOTE: Some parts are listed and shown for illustration purposes only, and are not available individually as
replacement parts.

SKU 93167

For technical questions, please call 1-800-444-3353

REV 05j; 06c; 07f
Page 19

Assembly Diagram
ASSEMBLY
DIAGRAM

SKU 93167

For technical questions, please call 1-800-444-3353

REV 06c; 07f
Page 20

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Central Hydraulics Trencher 93167 Users Manual

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