Harbor Freight Tools Towable Ride On Trencher Product manual

Owner’s Manual & Safety Instructions

Save This Manual Keep this manual for the safety warnings and precautions, assembly,

operating, inspection, maintenance and cleaning procedures. Write the product’s serial number in the
back of the manual near the assembly diagram (or month and year of purchase if product has no number).
Keep this manual and the receipt in a safe and dry place for future reference.

WARNING!

IMPORTANT INFORMATION

The Hitch Coupler MUST be properly secured to the hitch ball of
the towing vehicle. After assembly and attachment, pull up and down
on the Hitch Coupler to make sure the hitch ball is fitting snugly in the
Hitch Coupler. There must be no play between the hitch ball and
Hitch 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.

Carefully read and follow the complete instructions in this manual
BEFORE setup or use.

If the Coupler is not secured properly, the ball could
come loose while the Trencher is in motion, possibly
causing property damage, SERIOUS PERSONAL INJURY,
or DEATH.

Visit our website at: http://www.harborfreight.com

Email our technical support at: [e-mail]

REV 14j

When unpacking, make sure that the product is intact

and undamaged. If any parts are missing or broken,

please call 1-888-866-5797 as soon as possible.

Copyright© 2014 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.

Diagrams within this manual may not be drawn proportionally. Due to continuing

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

Tools required for assembly and service may not be included.

Using an engine indoors
CAN KILL YOU IN MINUTES.

Engine exhaust contains carbon monoxide.
This is a poison you cannot see or smell.

NEVER use inside
a home or garage,
EVEN IF doors and
windows are open.

Only use OUTSIDE
and far away from
windows, doors,
and vents.

Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.

Table of Contents

Specifications ............................................. 2

Safety ......................................................... 3

Setup .......................................................... 6

SAFETY SETUP OPERATION MAINTENANCE

Operation ................................................... 10

Specifications

Displacement 301cc

Engine Type

Engine Family ECRPS.3012GA
Cooling System Forced air cooled

Fuel

Engine Oil

Run Time @ 50% Load
with full tank

Sound Level 106 dB

Bore x Stroke 80 mm x 60 mm
Compression Ratio 8.2:1
Rotation viewed from PTO

(power takeoff - the output shaft)

Shaft Shaft 1″ x 3.48″

Spark Plug

Valve Clearance

Speed

Battery Required 12V 18Ah

Hydraulic Oil 3.5 Gallons

Tire Inflation 65 PSI

Digging Depth 5-1/2 and 7 Feet Deep

Maximum Digging Reach 8 Feet

Spool Valve Rated 10.6 GPM

Pump Rated 2.7 GPM

Boom Travel 60° Left/Right

Bucket Load Capacity 1.24 Cubic Feet

Hitch Ball size 1-7/8" Diameter

Maintenance .............................................. 17

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

Warranties ................................................. 24

Parts Lists and Diagrams .......................... 26

Horizontal Single Cylinder
4-stroke, OHV, 9HP, Recoil Start

Type 87+ octane unleaded gasoline
Capacity 1.72 Gallon

Type SAE

Capacity 1 Quart

Keyway 1/4″ (6.3 mm)

End Tapped 7/16 - 20

Type F6TC (Torch)

Gap 0.7 - 0.8 mm

Intake 0.15 ± 0.02 mm
Exhaust 0.20 ± 0.02 mm
Idle 1,740± 50 RPM
Maximum 3,600 RPM

10W-30 above 32° F
5W-30 at 32° F or below

3 hours

Counterclockwise

The emissions control system for this Engine is warranted for standards set by the
U.S. Environmental Protection Agency and by the California Air Resources Board (also known as CARB).
For warranty information, refer to the last pages of this manual.

Page 2 For technical questions, please call 1-888-866-5797. Item 62365

Symbol Definitions

WARNING SYMBOLS AND DEFINITIONS

This is the safety alert symbol. It is used to alert you to potential

personal injury hazards. Obey all safety messages that

follow this symbol to avoid possible injury or death.

Indicates a hazardous situation which, if not avoided,

will result in death or serious injury.

Indicates a hazardous situation which, if not avoided,

could result in death or serious injury.

Indicates a hazardous situation which, if not avoided,

could result in minor or moderate injury.

Addresses practices not related to personal injury.

SAFETYSETUPOPERATIONMAINTENANCE

Symbol Property or Statement

RPM

HP

Revolutions Per Minute

Horsepower

WARNING marking concerning
Risk of Eye Injury. Wear ANSI-approved
safety goggles with side shields.

Read the manual before
set-up and/or use.

WARNING marking concerning
Risk of Hearing Loss.
Wear hearing protection.

Symbol Property or Statement

WARNING marking concerning
Risk of Respiratory Injury.
Operate engine OUTSIDE and far away
from windows, doors, and vents.

WARNING marking concerning
Risk of Fire while handling fuel.
Do not smoke while handling fuel.

WARNING marking concerning
Risk of Fire.
Do not refuel while operating.
Keep flammable objects
away from engine.

IMPORTANT SAFETY INSTRUCTIONS

WARNING! Read all instructions.

Failure to follow all instructions listed below may result in fire, serious injury and/or DEATH.

The warnings and precautions discussed in this 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.

SAVE THESE INSTRUCTIONS

Set up Precautions

1. Gasoline fuel and fumes are flammable, and
potentially explosive. Use proper fuel storage
and handling procedures. Do not store fuel
or other flammable materials nearby.

2. Have multiple ABC class fire extinguishers nearby.

3. This equipment has a spark arresting muffler
included. A spark arresting muffler is required
by law in California, on some US Forest Service
land, and possibly in other areas or situations.

4. Set up and use only on a flat, level,
well-ventilated surface.

5. Wear ANSI-approved safety goggles, heavy-duty
work gloves, and dust mask/respirator during set up.

6. Use only lubricants and fuel recommended
in the Specifications chart of this manual.

Page 3For technical questions, please call 1-888-866-5797.Item 62365

Operating Precautions

1. CARBON MONOXIDE HAZARD

Using an engine indoors
CAN KILL YOU IN MINUTES.

SAFETY SETUP OPERATION MAINTENANCE

NEVER use inside a home or garage,
EVEN IF doors and windows are open.

Only use OUTSIDE and far away from windows,
doors, and vents.

2. Contact local utility companies before
beginning any project. Buried utility lines
may not be marked and, if struck, can cause
SERIOUS PERSONAL INJURY or DEATH.

3. Keep children away from the equipment,
especially while it is operating.

4. Keep all spectators at least 20 feet from
the equipment during operation.

5. Fire Hazard! Do not fill fuel tank while engine is
running. Do not operate if gasoline has been spilled.
Clean spilled gasoline before starting engine.
Do not operate near pilot light or open flame.

6. Do not touch engine during use.
Let engine cool down after use.

7. Never store fuel or other flammable
materials near the engine.

8. Industrial applications must follow
OSHA requirements.

9. Do not leave the equipment unattended when it is
running. Turn off the equipment (and remove safety
keys, if available) before leaving the work area.

10. The equipment can produce high noise levels.
Prolonged exposure to noise levels
above 85 dBA is hazardous to hearing.
Wear ear protection when operating the equipment
or when working nearby while it is operating.

11. Wear ANSI-approved safety goggles
and hearing protection during use.

12. Do not operate in explosive atmospheres,
such as in the presence of flammable
liquids, gases, or dust. Gasoline-powered
engines may ignite the dust or fumes.

Engine exhaust contains
carbon monoxide. This is a poison
you cannot see or smell.

13. People with pacemakers should consult their
physician(s) before use. Electromagnetic fields in
close proximity to a heart pacemaker could cause
pacemaker interference or pacemaker failure.
Caution is necessary when near the
engine’s magneto or recoil starter.

14. Use only accessories that are recommended
by Harbor Freight Tools for your model.
Accessories that may be suitable for one
piece of equipment may become hazardous
when used on another piece of equipment.

15. Stay alert, watch what you are doing and use
common sense when operating this piece of
equipment. Do not use while tired or under the
influence of drugs, alcohol or medication.

16. Do not overreach. Keep proper footing and
balance at all times. This enables better control
of the equipment in unexpected situations.

17. Use this equipment with both hands only.
Using equipment with only one hand
can easily result in loss of control.

18. Dress properly. Do not wear loose clothing or
jewelry. Keep hair, clothing and gloves away
from moving parts. Loose clothes, jewelry or
long hair can be caught in moving parts.

19. Parts, especially exhaust system components,
get very hot during use. Stay clear of hot parts.

20. Do not cover the engine or
equipment during operation.

21. Keep the equipment, engine, and
surrounding area clean at all times.

22. Use the equipment, accessories, etc., in
accordance with these instructions and in the
manner intended for the particular type of
equipment, taking into account the working
conditions and the work to be performed.
Use of the equipment for operations different from
those intended could result in a hazardous situation.

23. Do not operate the equipment with known
leaks in the engine’s fuel system.

24. WARNING: Some dust created by power sanding,
sawing, grinding, drilling, and other construction
activities, contains chemicals known to the State
of California to cause cancer and birth defects or
other reproductive harm. Some examples of these
chemicals are:

• Lead from lead-based paints

• Crystalline silica from bricks and cement or other
masonry products

• Arsenic and chromium from chemically
treated lumber
Your risk from these exposures varies, depending
on how often you do this type of work. To reduce
your exposure to these chemicals: work in a well
ventilated area, and work with approved safety
equipment, such as those dust masks that are
specially designed to filter out microscopic particles.
(California Health & Safety Code § 25249.5, et seq.)

Page 4 For technical questions, please call 1-888-866-5797. Item 62365

Operating Precautions (cont.)

25. 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.)

26. WARNING: This product contains di (2-ethylhexyl)
phthalate (DEHP), 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.)

27. Never place your hands or body near a hydraulic
fluid leak. High-pressure fluid can be forced
under the skin resulting in serious injury.

Transport Precautions

1. Only use a suitable means of transport and
lifting devices with sufficient weight bearing
capacity when transporting the equipment.

2. Properly secure the equipment to transport vehicle
to prevent it from rolling, slipping, and tilting.

28. When spills of fuel or oil occur, they must be
cleaned up immediately. Dispose of fluids and
cleaning materials as per any local, state, or
federal codes and regulations. Store oil rags in
a bottom-ventilated, covered, metal container.

29. Keep hands and feet away from moving parts.
Do not reach over or across
equipment while operating.

30. Before use, check for misalignment or binding of
moving parts, breakage of parts, and any other
condition that may affect the equipment’s operation.

If damaged, have the equipment serviced
before using. Many accidents are caused

by poorly maintained equipment.

31. Use the correct equipment for the application.
Do not modify the equipment and do not use the
equipment for a purpose for which it is not intended.

3. Always make sure the hitch coupler is securely fixed
to the vehicle before moving it. If the Coupler is not
se cured properly, the link could come loose while
the trailer is in motion, possibly causing property
damage, SERIOUS PERSONAL INJURY, or DEATH.

4. Do not exceed 30 MPH when towing the Trencher.

5. Do not tow the Trencher on roads or
highways. This product is not D.O.T.
compliant, and is not road legal.

SAFETYSETUPOPERATIONMAINTENANCE

Service Precautions

1. Before service, maintenance, or cleaning:

a. Turn the engine switch to its “OFF” position.

b. Allow the engine to completely cool.

c. Then, remove the spark plug wire

from the spark plug.

2. Keep all safety guards in place and in
proper working order. Safety guards include
muffler, air cleaner, mechanical guards,
and heat shields, among other guards.

3. Do not alter or adjust any part of the

equipment or its engine that is sealed by the
manufacturer or distributor. Only a qualified
service technician may adjust parts that may
increase or decrease governed engine speed.

4. Wear ANSI-approved safety goggles,
heavy-duty work gloves, and
dust mask/respirator during service.

5. Do not allow the hydraulic hose to come in
contact with any hot part of the unit. The
hose might be damaged, possibly causing
it to burst or leak under high pressure.

6. Maintain labels and nameplates on the equipment.
These carry important information.
If unreadable or missing, contact
Harbor Freight Tools for a replacement.

7. Have the equipment serviced by a qualified repair
person using only identical replacement parts.
This will ensure that the safety of the equipment
is maintained. Do not attempt any service or
maintenance procedures not explained in this
manual or any procedures that you are uncertain
about your ability to perform safely or correctly.

8. Store equipment out of the reach of children.

9. Follow scheduled engine and
equipment maintenance.

Refueling:

1. Do not smoke, or allow sparks, flames,
or other sources of ignition around the
equipment, especially when refuelling.

2. Do not refill the fuel tank while the
engine is running or hot.

3. Refuel in a well-ventilated area only.

4. Wipe up any spilled fuel and allow excess
to evaporate before starting engine.

To prevent FIRE, do not start the engine
while the smell of fuel hangs in the air.

SAVE THESE INSTRUCTIONS.

Page 5For technical questions, please call 1-888-866-5797.Item 62365

Set Up

Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual
including all text under subheadings therein before set up or use of this product.

SAFETY SETUP OPERATION MAINTENANCE

RISK OF ACCIDENTAL STARTING RESULTING IN SERIOUS PERSONAL INJURY.
Turn the Power Switch of the equipment to its “OFF” position, wait for the engine to cool, and
unplug the spark plug wire(s) before assembling or making any adjustments to the equipment.

The emission control system for this product’s Engine is warranted for standards set by
the U.S. Environmental Protection Agency and by the California Air Resources Board (also
known as CARB). For warranty information, refer to the last pages of this manual.

At high altitudes, the engine’s carburetor, governor (if so equipped), and any other parts that control
the fuel-air ratio will need to be adjusted by a qualified mechanic to allow efficient high-altitude
use and to prevent damage to the engine and any other devices used with this product.

Assembly

1. This equipment has a spark arresting muffler.
A spark arresting muffler is required by law in
California, on some US Forest Service land,
and possibly in other areas or situations.

2. Due to the size of the Trencher and its
components, assistance may be required
during the entire assembly process.

3. Use jacks (not included) to evenly raise
the Frame Assembly (90) & support
with jack stands (not included).

4. Mount both Axles (50) near the boom end of
the Frame and secure with Lock Pins (82).

5. Place a Tire (52) over the four studs on each
Hub. Secure the Tires to the Hubs, using
four Lug Nuts (53) per Tire. The Lug Nuts
must be snug. Inflate the Tires to 65 PSI.

6. Slightly raise the jacks, remove the jack stands,
then lower the jacks. Block the Tires and
tighten the Lug Nuts to at least 90 Ft-Lbs.

7. Attach Seat (73) to the Seat Bottom
Plate (10) and secure both Seat and Plate
to the post on top of Hydraulic Oil Tank.

8. Attach the Control Support (3) to the Frame
Assembly (90) using four Hex Bolts (81).

NOTE: The Hydraulics of this unit are tested
before shipment. There may be hydraulic fluid
present in components. Assemble the unit in
an area that will not be damaged by leaking
hydraulic fluid. It is recommended that you wrap
rags securely over the Hydraulic Connectors on
all the Cylinders during assembly. Wear splash­resistant ANSI approved safety goggles and other
protective gear to prevent injury from leaking fluid.

9. Attach the Main Boom (36) to the Boom Pivot
(38) using the Pin (42) through the bottom hole
and Clevis Pin No. 1 (29) through the upper hole.
Secure both pins with Hair Pin Clip (31); Pin (42)
requires one Cotter pin on each end. See Figure A.

Boom

Pivot (38)

Pin

(42)

Figure A

10. Mount the Boom Extension (34) to the
Main Boom (36) using the Pin (42), left,
and Clevis Pin No. 1 (29), top. Secure
both pins with Hair Pin Clip (31).

11. Attach the Hitch Coupler (58) to the Frame
Assembly (90) under the Engine (74) using
Hex Bolts (75) and Hex HD. Bolt (72).

12. Connect, tighten, and check all hydraulic hose
fittings to the proper connections, as shown
in the Hose Connection Diagram. Hoses and
fittings are numbered. Tighten all fittings.

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

Clevis Pin

No. 1 (29)

Main

Boom

(36)

Page 6 For technical questions, please call 1-888-866-5797. Item 62365

Attaching the Leg Assembly

1. To use the Trencher, the Leg Assemblies must
be installed next to the Boom (36), and the
Wheels and Axles (50) moved to the rear.

2. Move the Trencher to the work area (See
Starting the Engine on page 10).

3. Start the engine and use the Boom Controls to curl
the Bucket toward the Boom without touching the
ground. Moving the Bucket As sembly (32) down
to the ground will raise the Frame Assembly (90).
Lift the Tires just off the ground and stop.

4. Ensure 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.

Purging the Cylinder

1. Remove all Safety Locking Pins (15),
disengage the Safety Latch (41) and
loosen Hydraulic Tank Fill Plug (11).

2. Press forward on the Boom Swing Lever
(located on Control Panel (9) until the Boom
stops moving, then pull back on it until it moves
in the other direction. Center the Boom.

3. 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.

5. With the Tires (52) off the ground, remove the
Wheel and Axle (50) to the operator’s left and
replace with the left side Extension Leg (19) and
Leg Assembly (24). Direct the Extension Leg so
it turns toward the Bucket end of the Trencher.
Secure with Lock Pin No. 2 (82). Repeat procedure
for the right side. Raise Bucket As sembly again to
lower onto Leg Assembly, and turn Engine off.

6. Using a jack and jack stands (not included), raise
up the engine end of the Trencher and disconnect
from the Towing Hitch. Slide the Wheels and
Axles (50) into the engine end of the Frame (90).
Secure each Axle with Lock Pin No. 2 (82).

4. Press forward on the Bucket Lever until
the Bucket is fully extended. Pull back
on the Lever to retract it fully.

5. Pull back on the Boom Extension Lever
until the Boom is pulled back all the way.
Pull back on the Main Boom Lever until
the Main Boom is lowered completely.

6. Adjust the Boom back to its rest position
and replace all locking devices.

7. Shut off the Engine, check the Hydraulic
Fluid level and refill as necessary.

Note: The Fill Plug is vented. When tightening the
Fill Plug, tighten it securely then back it off slightly.

SAFETYSETUPOPERATIONMAINTENANCE

Page 7For technical questions, please call 1-888-866-5797.Item 62365

Components and Controls

Clevis Pin No. 1 (29)

SAFETY SETUP OPERATION MAINTENANCE

Hydraulic Fluid

Fill Plug (11)

Engine (74)

Mount Hitch
Coupler (58)

Here

Seat (73)

Hydraulic

Fluid

Reservoir

Pin

(42)

Control

Panel (9)

Boom Extension (34)

Frame Assy. (90)

Bucket

Control

Cylinder

2

Boom

Extension

Cylinder

8

Figure B: Tow Configuration

Control Panel / Spool Valve (9)

Main Boom

Cylinder

9

3

4

10

Boom Swing

Cylinder

Hydraulic Fluid

Reservoir

part of Frame (90)

5

Hydraulic

Pump (65)

7

Figure C: Hose Connection

Page 8 For technical questions, please call 1-888-866-5797. Item 62365

Components and Controls (cont’d)

Bucket Assembly

Main Boom

SAFETYSETUPOPERATIONMAINTENANCE

Frame Assembly/

Engine/Pump

Tires

Axle & Hub

Leg Extension Leg Assembly

Figure D

Bucket Seat

Control Panel

Page 9For technical questions, please call 1-888-866-5797.Item 62365

Operation

Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual
including all text under subheadings therein before set up or use of this product.

SAFETY SETUP OPERATION MAINTENANCE

Pre-Start Checks

Inspect engine and equipment looking for damaged, loose, and missing parts before set up and starting.
If any problems are found, do not use equipment until fixed properly.

Checking and Filling Engine Oil

NOTICE: Your Warranty is VOID if the engine’s
crankcase is not properly filled with oil before
each use. Before each use, check the oil level.
Do not run the engine with low or no engine oil.
Running the engine with no or low engine oil
WILL permanently damage the engine.

1. Clean the Oil Filler Cap and the area around it.

2. Remove the Oil Filler Cap/Dipstick.
Read the engine service manual for the
proper way to check the oil level.

3. If the oil level is low, add the proper type and weight.
See information below.
Oil type:
32° F or above = SAE 10W-30
Below 32° F = SAE 5W-30.

4. Replace the Oil Filler Cap.

NOTICE: Do not run the engine with too little oil.
The engine will be permanently damaged.

Checking and Filling Fuel

WARNING! TO PREVENT SERIOUS

INJURY FROM FIRE:

Fill the fuel tank in a well-ventilated area
away from ignition sources. If the engine
is hot from use, shut the engine off and

wait for it to cool before adding fuel. Do not smoke.

1. Clean the Fuel Cap and the area around it.

2. Unscrew and remove the Fuel Cap.

3. Remove the Strainer and remove any dirt
and debris. Then replace the Strainer.

Note: Do not use gasoline containing more than
10% ethanol (E10). Do not use E85 ethanol. Add fuel
stabilizer to the gasoline or the Warranty is VOID.

Starting the Engine

Before Starting the Engine

Before starting the engine:

a. Follow the Set Up Instructions to prepare the equipment.
b. Inspect the equipment and engine.
c. Fill the engine with the proper amount and type of both unleaded gasoline and oil.
d. Read the Equipment Operation section that follows.

Note: Do not use gasoline that has been stored in a
metal fuel container or a dirty fuel container. It can
cause particles to enter the carburetor, affecting
engine performance and/or causing damage.

4. If needed, fill the Fuel Tank to about 1 inch under
the fill neck of the Fuel Tank with 90 octane or
higher unleaded gasoline that has been treated
with a fuel stabilizer additive. Follow fuel stabilizer
manufacturer’s recommendations for use.

5. Then replace the Fuel Cap.

6. Wipe up any spilled fuel and allow excess
to evaporate before starting engine.
To prevent FIRE, do not start the engine
while the smell of fuel hangs in the air.

Page 10 For technical questions, please call 1-888-866-5797. Item 62365

Engine Diagrams

Throttle Lever

Muffler

Spark Plug

Air Cleaner

Fuel Valve Lever

Ignition Switch

Starter Grip

Recoil Starter

Choke Lever

SAFETYSETUPOPERATIONMAINTENANCE

Fuel Tank

Oil Drain Plug

Fuel Filler Cap

Oil Filler Cap

Page 11For technical questions, please call 1-888-866-5797.Item 62365

Manual Start

1. Turn the Fuel Valve Lever to its “OPEN” position.

SAFETY SETUP OPERATION MAINTENANCE

1

2. Turn the Ignition Switch to its ON or RUN position.

OFF

3. Then, turn the engine Choke Lever to its “START”
position. Set the Choke Lever in the “RUN” position
when starting a warm engine.

ON

O

I

ON

2

3

4. Grip the Starter Handle of the Engine loosely and pull it
slowly several times to allow the gasoline to flow into
the Engine’s carburetor. Then pull the Starter Handle
gently until resistance is felt. Allow Cable to retract fully
and then pull it quickly. Repeat until the engine starts.

Note: Do not let the Starter Handle snap back against
the engine. Hold it as it recoils so it doesn’t hit the engine.

5. Allow the Engine to run for several seconds.
Then, if the Choke Lever is in the CHOKE position,
move the Choke Lever very slowly to its RUN position.

Note: Moving the Choke Lever too
fast could stall the engine.

4

5

Page 12 For technical questions, please call 1-888-866-5797. Item 62365

6. Slide the Throttle or Speed Control Lever to 1/3 away
from the SLOW position (the “turtle”). Adjust as needed.

Note: Some tools have a Speed Control Lever located
elsewhere on the tool which functions the same as
the Throttle. Use the Speed Control Lever in place
of the Throttle when the tool is so equipped.

6

IMPORTANT: Allow the engine to run at no load for five minutes
after each start-up so that the engine can stabilize.

Break-in Period:

a. Breaking-in the engine will help to ensure proper equipment and engine operation.

b. The operational break-in period will last about 3 hours of use. During this period:

• Do not apply a heavy load to the equipment.

• Do not operate the engine at its maximum speed.

c. The maintenance break-in period will last about 20 hours of use.

• Change the engine oil after this period.

Under normal operating conditions subsequent maintenance follows
the schedule explained in the MAINTENANCE section.

Stopping the Engine

1. To stop the engine in an emergency,
turn the Engine Switch off.

OFF

SAFETYSETUPOPERATIONMAINTENANCE

O

I

2. Under normal conditions, use the following procedure:

a. Turn the Engine Switch off.

b. Close the Fuel Valve.

NOTICE

See “Long-Term Storage” on page 15 for complete storage instructions.

Page 13For technical questions, please call 1-888-866-5797.Item 62365

Changing Trencher Arm Positions

This Trencher can be used with two arm positions. See Figure E and Figure F.

SAFETY SETUP OPERATION MAINTENANCE

Main

Boom

(36)

Cylinder (26)

upper

hole

Pin

(29)

Boom

Pivot

(38)

Cylinder (26)

Main

Boom

(36)

Pin

(29)

lower

hole

Boom

Pivot

(38)

Figure E: Shallow Position (5 1/2’ downward reach)

1. To use the Shallow Position, with a 5 1/2’
downward reach, do as follows:

a. While the end of the Boom is

supported, remove the Pin (29).

b. Align the Cylinder with the upper hole.

c. Insert the Pin (29), and secure it

with the Hair Pin Clip (31).

Figure F: Deep Position (7’ downward reach)

2. To use the Deep Position, with a 7’
downward reach, do as follows:

a. While the end of the Boom is

supported, remove the Pin (29).

b. Align the Cylinder with the lower hole.

c. Insert the Pin (29), and secure it

with the Hair Pin Clip (31).

Page 14 For technical questions, please call 1-888-866-5797. Item 62365

General Operating Instructions

1. With the Engine running, sit in the Operator
Seat (73) and pull the Boom Lever control backward
to raise the Main Boom (36). See Figure G.

Bucket:

IN - OUT

Boom

Extension:

IN - OUT

Boom:

IN - OUT

Boom Swing:
LEFT - RIGHT

Figure G: Operate controls by

pushing in or pulling out.

Moving the Trencher

2. Pull back on the Boom Extension Handle
Control to raise the Boom Extension (34).

3. Push forward on the Bucket Handle Control
to open the Bucket Assembly (32).

4. Push forward on the Boom Handle to lower the
Boom until the Bucket reaches the ground.

5. Pull back on the Bucket Lever control
until the Bucket scoops up the dirt.

6. Pull back on both the Boom and Boom
Extension Control Levers to raise the load.

7. Press in, or push out, the Boom Swing Control
Levers to move the Bucket left or right.

Note: The Boom’s travel is 60 degrees
left and 60 degrees right.

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

SAFETYSETUPOPERATIONMAINTENANCE

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 dependent
on the stability of the ground; if you choose to move
the Trencher in this way, do so at your own risk. Do
not use the Trencher near ditches or drop-offs.

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.

3. 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.

4. After you have repositioned the Trencher, raise the
Boom to lower the Outriggers back onto the ground.
The procedure can be repeated to move farther.

Page 15For technical questions, please call 1-888-866-5797.Item 62365

Transporting the Trencher

1. Lock the Boom in Place. Use the Bucket Lever
to line the hole on the Bucket (32) up with the
hole on the Boom Extension (34). Insert a Safety

SAFETY SETUP OPERATION MAINTENANCE

Locking Pin (15) and secure with a Ball Pin.

2. 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 Ball Pin. See Figure H.

Safety Locking

Pin (15)

Safety Latch (41)

Figure H

3. Put the Boom into the Shallow Position 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.

4. When transporting the Trencher, make sure your
hitch (not included) is compatible with the Hitch
Coupler (92). Follow all of the safety warnings
for towing in your vehicle’s manual. The Hitch
Coupler will only accept a 2 inch hitch ball.

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

6. Temporarily remove the “R” Pin and Safety
Pin. Then, pull up on the Trigger and
lift up on the Handle. See Figure I.

R-Pin

7. 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. See Figure J.

Trigger

Handle

Adjustment

Nut

Safety

Chain

(56)

Hitch Ball

(Not Included)

Figure J

8. 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.

9. Make sure to attach each side of the
Safety Chain (56) equally to the towing
vehicle’s rear bumper or frame.

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, causing severe damage
to the Trencher and to the towing vehicle.

10. To prevent accidents, turn off the engine, wait for
it to cool, and disconnect its spark plug wire after
use. Clean external parts with clean cloth, then
store the equipment out of children’s reach.

Safety Pin

Hitch

Coupler (58)

Figure I

Page 16 For technical questions, please call 1-888-866-5797. Item 62365

Maintenance

WARNING

TO PREVENT SERIOUS INJURY FROM ACCIDENTAL STARTING:
Turn the Power Switch of the equipment to its “OFF” position, wait for the engine to cool, and disconnect
the spark plug cap before performing any inspection, maintenance, or cleaning procedures.

TO PREVENT SERIOUS INJURY FROM EQUIPMENT FAILURE:
Do not use damaged equipment. If abnormal noise, vibration, or excess
smoking occurs, have the problem corrected before further use.

Follow all service instructions in this manual. The engine may fail critically if not serviced properly.

Many maintenance procedures, including any not detailed in this manual, will need to be performed
by a qualified technician for safety. If you have any doubts about your ability to safely service the
equipment or engine, have a qualified technician service the equipment instead.

Cleaning, Maintenance, and Lubrication Schedule

Note: This maintenance schedule is intended solely as a general guide. If performance decreases or if

equipment operates unusually, check systems immediately. The maintenance needs of each piece of equipment
will differ depending on factors such as duty cycle, temperature, air quality, fuel quality, and other factors.

Note: The following procedures are in addition to the regular checks and maintenance
explained as part of the regular operation of the engine and equipment.

SAFETYSETUPOPERATIONMAINTENANCE

Procedure

Brush off outside of engine

Check engine oil level

Check air cleaner

Check deposit cup

Change engine oil

Clean/replace air filter

Check and clean spark plug

Blow out water filters

Replace fuel Filter

Replace spark plug

1. Clean fuel tank, strainer
and carburetor

2. Clean carbon build-up
from combustion chamber

Apply grease to boom
axis-movement points
(see Figure K: Lubrication
Points on page 18)

Replace fuel line if necessary

Before

Each Use

After 20

Operation

Hour

Break-in

Period

Monthly or

every 25

hr. of use

Every 3
mo. or 50
hr. of use

Every 6 mo. or

100 hr. of use

Yearly or
every 300
hr. of use

* * * * *

** **

Periodically

**

*Service more frequently when used in dusty areas.

**These items should be serviced by a qualified technician.

Page 17For technical questions, please call 1-888-866-5797.Item 62365

SAFETY SETUP OPERATION MAINTENANCE

Figure K: Lubrication Points

Page 18 For technical questions, please call 1-888-866-5797. Item 62365

Fuel Filter Replacement (if equipped)

Engine Oil Change

WARNING! TO PREVENT SERIOUS

INJURY FROM FIRE OR EXPLOSION:

Fill the fuel tank in a well-ventilated area
away from ignition sources. If the engine is
hot from use, shut the engine off and wait

for it to cool. Do not smoke.

1. Wear protective gear including, ANSI­approved safety goggles, NIOSH-approved
dust mask/respirator, and nitrile gloves.

2. Clean the Fuel Cap and the area around it.

3. Remove Fuel Filter (6R). Reattach Fuel Cap to
prevent debris from entering into Gas Tank.

4. Remove Fuel Strainer. Wash with warm water
and light detergent. Flush and let dry.

5. Reinstall in the Gas Tank.

CAUTION! Oil is very hot during operation and can

cause burns. Wait for engine to cool before changing oil.

1. Make sure the engine is stopped and is level.

2. Close the Fuel Valve.

3. Place a drain pan (not included) underneath
the Crankcase’s drain plug.

4. Remove the Drain Plug and, if possible,
tilt the Crankcase slightly to help drain
the oil out. Recycle used oil.

5. Replace the drain plug and tighten it.

6. Clean the top of the Dipstick and the area around it.
Remove the Dipstick by turning it counterclockwise,
and wipe it off with a clean, lint free rag.

Full level

7.

Add the appropriate type of oil until the oil level is at
the full level. SAE 10W-30 oil is recommended for
general use.
The SAE Viscosity Grade chart shows other
viscosities to use in different average temperatures.

Full level

SAE Viscosity Grades

30

10W-30

5W-30

-20 0 20 40 60 80 100°F

Average outdoor temperature

8. Thread the Dipstick back in clockwise.

NOTICE: Do not run the engine with too little oil.
The engine will be permanently damaged.

Page 19For technical questions, please call 1-888-866-5797.Item 62365

Air Filter Element Maintenance

1. Remove the air filter cover and the air filter elements
and check for dirt. Clean as described below.

2. Cleaning:

SAFETY SETUP OPERATION MAINTENANCE

• For “paper” filter elements:
To prevent injury from dust and debris,
wear ANSI-approved safety goggles,
NIOSH-approved dust mask/respirator, and
heavy-duty work gloves. In a well-ventilated
area away from bystanders, use pressurized
air to blow dust out of the air filter.
If this does not get the filter clean, replace it.

• For foam filter elements:
Wash the element in warm water and
mild detergent several times. Rinse.
Squeeze out excess water and allow it to dry
completely. Soak the filter in lightweight oil
briefly, then squeeze out the excess oil.

3. Install the cleaned filter. Secure the
Air Cleaner Cover before use.

Spark Plug Maintenance

Spark

Plug

Cap

1.

Disconnect Spark Plug Cap from end of Plug.
Clean out debris from around Spark Plug.

2. Using a spark plug wrench, remove the Spark Plug.

3. Inspect the Spark Plug:
If the electrode is oily, clean it using a clean, dry rag.
If the electrode has deposits on it, polish it using
emery paper. If the white insulator is cracked or
chipped, the Spark Plug needs to be replaced.

Recommended Spark Plugs

F7TC (Torch)

NOTICE: Using an incorrect spark plug
may damage the engine.

4. When installing a new spark plug,
adjust the plug’s gap to the specification on the
Specifications chart. Do not pry against the
electrode; the spark plug can be damaged.

5. Install the new spark plug or
the cleaned spark plug into the engine.

• Gasket-style:

Finger-tighten until the Gasket
contacts the Cylinder Head,
then tighten about 1/2-2/3 turn more.

• Non-gasket-style:

Finger-tighten until the plug
contacts the Cylinder Head,
then tighten about 1/16 turn more.

NOTICE: Tighten the Spark Plug properly.
If loose, the Spark Plug will cause the

engine to overheat.
If overtightened, the threads in the
engine block will be damaged.

6. Apply dielectric spark plug boot protector
(not included) to the end of the Spark Plug
and reattach the wire securely.

Page 20 For technical questions, please call 1-888-866-5797. Item 62365

Long-Term Storage

When the equipment is to remain idle for longer than
20 days, prepare the engine for storage as follows:

1. CLEANING:
Wait for engine to cool, then clean engine with
dry cloth. NOTICE: Do not clean using water.
The water will gradually enter the engine
and cause rust damage. Apply a thin coat
of rust preventive oil to all metal parts.

2. FUEL:

WARNING! TO PREVENT SERIOUS

INJURY FROM FIRE:

To protect the fuel tank during storage, fill
the tank with gasoline treated with fuel
stabilizer in a well-ventilated area away
from ignition sources. If the engine is hot

from use, shut the engine off and wait for it
to cool before adding fuel. Do not smoke. Refer to
Checking and Filling Fuel on page 10.

3. LUBRICATION:

a. Change engine oil.

b. Clean out area around spark plug.

Remove spark plug and pour one tablespoon of
engine oil into cylinder through spark plug hole.

c. Replace spark plug, but leave

spark plug cap disconnected.

d. Pull Starter Handle to distribute oil in cylinder.

Stop after one or two revolutions when you
feel the piston start the compression stroke
(when you start to feel resistance).

4. BATTERY:
Disconnect battery cables (if equipped).
Recharge batteries monthly while in storage.

5. STORAGE AREA:
Cover and store in a dry, level, well-ventilated
area out of reach of children. Storage area
should also be away from ignition sources, such
as water heaters, clothes dryers, and furnaces.

NOTICE: During extended storage periods the
Engine must be started every 3 months and allowed

to run for 15 – 20 minutes or the Warranty is VOID.

6. STARTING ENGINE DURING/AFTER STORAGE:
Before starting the Engine during or after
storage, keep in mind that untreated gasoline
will deteriorate quickly. Drain the fuel tank and
change to fresh fuel if untreated gasoline has
been sitting for a month, if treated gasoline
has been sitting beyond the fuel stabilizer’s
recommended time period, or if the Engine
does not start. For Engine starting instructions
refer to Starting the Engine on page 10.

SAFETYSETUPOPERATIONMAINTENANCE

Page 21For technical questions, please call 1-888-866-5797.Item 62365

Troubleshooting

Problem Possible Causes Probable Solutions

Engine will not start FUEL RELATED:

SAFETY SETUP OPERATION MAINTENANCE

Trencher loses
performance

1. No fuel in tank or fuel valve closed.

2. Choke not in start position,
especially with cold engine.

3. Low quality or deteriorated old gasoline.

4. Carburetor not primed.

5. Dirty fuel passageways blocking fuel flow.

6. Carburetor needle stuck. Fuel
can be smelled in the air.

7. Too much fuel in chamber. This can be
caused by the carburetor needle sticking.

IGNITION (SPARK) RELATED:

1. Spark Plug Cap not connected securely.

2. Spark Plug electrode wet or dirty.

3. Incorrect Spark Plug Gap.

4. Spark Plug Cap broken.

5. Incorrect spark timing or
faulty ignition system.

COMPRESSION RELATED:

1. Cylinder not lubricated.
Problem after long storage periods.

2. Loose or broken Spark Plug.
(Hissing noise will occur
when trying to start.)

3. Loose Cylinder Head or damaged
Head Gasket. (Hissing noise will
occur when trying to start.)

4. Engine valves or tappets
mis-adjusted or stuck.

1. Mushy hydraulic operation.

2. Oil Leaks.

FUEL RELATED:

1. Fill fuel tank and open fuel valve.

2. Move choke to start position
if engine is cold.

3. Use only fresh 87+ octane
unleaded gasoline.

4. Prime Carburetor by pressing
priming bulb (if equipped).

5. Clean out passageways using
fuel additive. Heavy deposits
may require further cleaning.

6. Gently tap side of Carburetor float
chamber with screwdriver handle.

7. Turn Fuel Valve to its off position. Turn
choke to run position. Remove spark plug
and pull the start handle several times
to air out the chamber. Reinstall spark
plug and set choke to start position.

IGNITION (SPARK) RELATED:

1. Connect Spark Plug Cap properly.

2. Clean Spark Plug.

3. Correct Spark Plug Gap.

4. Replace Spark Plug Cap.

5. Have qualified technician diagnose/
repair ignition system.

COMPRESSION RELATED:

1. Pour tablespoon of oil into
spark plug hole. Crank engine a
few times and try to start again.

2. Tighten Spark Plug.
If that does not work, replace spark plug.
If problem persists, may have
head gasket problem, see #3.

3. Tighten head.
If that does not remedy problem,
replace head gasket.

4. Have qualified technician adjust/
repair valves and tappets.

1. Bleed hydraulic system. Replace
hydraulic filter/clean strainer.

2. Tighten/replace hose.

Follow all safety precautions whenever diagnosing or servicing the equipment or engine.

Page 22 For technical questions, please call 1-888-866-5797. Item 62365

Problem Possible Causes Probable Solutions

Engine misfires

Engine stops
suddenly

Engine stops when
under heavy load

Engine knocks

Engine backfires

1. Spark Plug Cap loose.

2. Incorrect Spark Plug Gap or
damaged Spark Plug.

3. Defective Spark Plug Cap.

4. Old or low quality gasoline.

5. Incorrect compression.

1. Fuel Tank empty or full of impure or low
quality gasoline.

2. Low oil shutdown.

3. Defective fuel tank cap creating vacuum,
preventing proper fuel flow.

4. Faulty magneto.

5. Disconnected or improperly
connected spark plug cap.

1. Dirty Air Filter

2. Engine running cold.

1. Old or low quality gasoline.

2. Engine overloaded.

3. Incorrect spark timing, deposit buildup,
worn engine, or other mechanical problems.

1. Impure or low quality gasoline.

2. Engine too cold.

3. Intake Valve stuck or overheated engine.

4. Incorrect timing.

1. Check wire connections.

2. Re-gap or replace Spark Plug.

3. Replace Spark Plug Cap.

4. Use only fresh 87+ octane
unleaded gasoline.

Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).

5. Diagnose and repair compression.
(Use Engine will not start:
COMPRESSION RELATED section.)

1. Fill Fuel Tank with fresh 87+ octane
unleaded gasoline.

Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).

2. Fill engine oil to proper level.
Check engine oil before EVERY use.

3. Test/replace fuel tank cap.

4. Have qualified technician service magneto.

5. Secure spark plug cap.

1. Clean or replace element.

2. Allow engine to warm up prior
to operating equipment.

1. Fill Fuel Tank with fresh 87+ octane
unleaded gasoline.

Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).

2. Do not exceed equipment’s load rating.

3. Have qualified technician
diagnose and service engine.

1. Fill Fuel Tank with fresh 87+ octane
unleaded gasoline.

Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).

2. Use cold weather fuel and
oil additives to prevent backfiring.

3. Have qualified technician
diagnose and service engine.

4. Check engine timing.

SAFETYSETUPOPERATIONMAINTENANCE

Follow all safety precautions whenever diagnosing or servicing the equipment or engine.

Page 23For technical questions, please call 1-888-866-5797.Item 62365

Warranties

SAFETY SETUP OPERATION MAINTENANCE

Limited 90 Day Warranty

Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and durability standards,
and warrants to the original purchaser that this product is free from defects in materials and workmanship for the
period of 90 days from the date of purchase. This warranty does not apply to damage due directly or indirectly,
to misuse, abuse, negligence or accidents, repairs or alterations outside our facilities, criminal activity, improper
installation, normal wear and tear, or to lack of maintenance. We shall in no event be liable for death, injuries
to persons or property, or for incidental, contingent, special or consequential damages arising from the use of
our product. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the
above limitation of exclusion may not apply to you. THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.

To take advantage of this warranty, the product or part must be returned to us with transportation charges prepaid.
Proof of purchase date and an explanation of the complaint must accompany the merchandise.
If our inspection verifies the defect, we will either repair or replace the product at our election or
we may elect to refund the purchase price if we cannot readily and quickly provide you with a replacement.
We will return repaired products at our expense, but if we determine there is no defect, or that the defect resulted
from causes not within the scope of our warranty, then you must bear the cost of returning the product.

This warranty gives you specific legal rights and you may also have other rights which vary from state to state.

Emissions Control System Warranty

California and United States Emissions
Control Defects Warranty Statement

The California Air Resources Board (herein CARB),
the United States Environmental Protection Agency (herein EPA),
and Harbor Freight Tools (herein HFT) are pleased to explain
the emissions control system warranty on your 2014-2015
Small Off-Road Engine (herein engine). In California, the engine
must be designed, built and equipped to meet the State’s stringent
anti-smog standards. Elsewhere within the United States, new
off-road, spark-ignition engines certified for model year 2014-2015,
must meet similar standards set forth by the EPA. HFT must
warrant the emissions control system on your engine for the
periods of time described below, provided there has been no
abuse, neglect or improper maintenance of your engine.

Your emissions control system may include parts such as the
carburetor or fuel-injection system, and the ignition system.
Also included may be hoses, belts, connectors
and other emissions-related assemblies.

Where a warrantable condition exists, HFT will repair your
engine at no cost to you including diagnosis, parts and labor.

Manufacturer’s Warranty Coverage

The 2014-2015 engines are warranted for two (2) years.
If any emissions-related part on your engine is defective,
the part will be repaired or replaced by HFT.

Harbor Freight Tools Emissions Control
Defects Warranty Coverage

Engines are warranted for a period of two (2) years relative
to emissions control parts defects, subject to the provisions
set forth below. If any emissions related part on your engine
is defective, the part will be repaired or replaced by HFT.

Owner’s Warranty Responsibilities

• As the engine owner, you are responsible for the performance
of the required maintenance listed in your Owner’s Manual.
HFT recommends that you retain all receipts covering
maintenance on your engine, but HFT cannot deny warranty
solely for the lack of receipts or for your failure to
ensure the performance of all scheduled maintenance.

• As the engine owner, you should, however, be aware
that HFT may deny you warranty coverage if your
engine or a part has failed due to abuse, neglect,
improper maintenance, or unapproved modifications.

• You are responsible for shipping your engine to a HFT
warranty station as soon as a problem exists. Contact the
HFT Customer Service department at the number below to
make shipping arrangements. The warranty repairs should be
completed in a reasonable amount of time, not to exceed 30 days.

If you have any questions regarding your warranty rights

and responsibilities, you should contact the Harbor Freight Tools
Customer Service Department at 1-888-866-5797.

Page 24 For technical questions, please call 1-888-866-5797. Item 62365

Harbor Freight Tools Emissions Control
Defects Warranty Provisions

1. Length of Coverage

HFT warrants to a first retail purchaser and each
subsequent purchaser that the engine is free from
defects in materials and workmanship that cause
the failure of warranted parts for a period of two (2) years
after the date of delivery to the first retail purchaser.

2. No Charge Repair or Replacement

Repair or replacement of any warranted part will be
performed at no charge to the owner if the work is
performed through a warranty station authorized by HFT.
For emissions warranty service, contact the HFT
Customer Service Department at 1-888-866-5797.

3. Consequential Damages Coverage

Coverage under this warranty shall also extend to the failure
of any engine components caused by the failure of any
warranted part while it is still covered under this warranty.

4. Coverage Exclusions

Warranty claims shall be filed in accordance with the provisions
of the HFT warranty policy explained in the box at the top of the
previous page. HFT shall not be liable for any loss of use of
the engine, for any alternative usage, for any damage to goods,
loss of time, or inconvenience. Warranty coverage shall also be
excluded for any part which fails, malfunctions, or is damaged
due to failure to follow the maintenance and operating instructions
set forth in the Owner’s Manual including, but not limited to:

a) Use of parts which are not authorized by HFT

b) Improper installation, adjustment or repair of

the engine or of any warranted part unless
performed by an authorized warranty center

c) Failure to follow recommendations on fuel use

contained in the Owner’s Manual

d) Improper or inadequate maintenance of any warranted parts

e) Repairs performed outside of

the authorized warranty service dealers

f) Alterations by changing, adding to or

removing parts from the engine.

5. Service and Maintenance

Component parts which are not scheduled for replacement
as required maintenance or are scheduled only for regular
inspection to the effect of “repair or replace as necessary”
are warranted for the warranty period. Any warranted part
which is scheduled for replacement as required maintenance
is warranted for the period of time up to the first scheduled
replacement point for that part. Any replacement part, provided
it is equivalent in durability and performance, may be used
in performance of maintenance or repairs. The owner is
responsible for commissioning a qualified technician/mechanic
to perform all required maintenance, as outlined in the
Inspection, Cleaning, and Maintenance section in this manual.

6. Warranted Parts

1) Fuel Metering System

i) Carburetor and its internal parts.

ii) Fuel pump (if so equipped).

iii) Cold start enrichment system.

2) Air Induction System

i) Intake pipe/manifold.

ii) Air cleaner.

3) Ignition System

i) Spark plug.

ii) Magneto ignition system.

4) Catalyst System (if so equipped)

i) Exhaust pipe stud.

ii) Muffler.

iii) Catalytic converter (if so equipped).

5) Miscellaneous Items Used in Above Systems

i) Vacuum, temperature and time

sensitive valves and switches.

ii) Hoses, belts, connectors, and assemblies.

SAFETYSETUPOPERATIONMAINTENANCE

PLEASE READ THE FOLLOWING CAREFULLY

THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY DIAGRAM
IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR 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.

Page 25For technical questions, please call 1-888-866-5797.Item 62365

Parts Lists and Diagrams

Main Parts List

SAFETY SETUP OPERATION MAINTENANCE

Part Description Qty.

1 Nut 3/8" 4
2 Spring Washer 3/8" 10
3 Control Support 1
4 Washer 3/8" 9
5 Hex Hd. Bolt 3/8"*1-1/8" 8
6 Scutcheon 1
7 Hose Assembly No.6 1
8 Hex Connector 10

9 Control Valve 1
10 Seat Bottom 1
11 Fill Plug/Dipstick 1
12 Spring Washer 5/16" 17
13 Enter Hose Assembly No.1 1
14 Hex Bolt 3/8"*1" 2
15 Safety Locking Pin 2
16 Spring Hair Pin Clip 8
17 Hose Assembly No.4 1
18 Hose Assembly No.9 1
19 Extension Leg (Right) 1
20 Lock Pin No.1 4
21 Hose Assembly No.5 1
22 Hose Assembly No.10 1
23 Control Panel 1
24 Leg Assembly 2
25 90 Elbow Fitting No.1 8
26 Cylinder 4
27 Connecting Rod 2
28 Connecting Rod 2
29 Clevis Pin No.1 8
30 Bushing 1
31 Hair Pin Clip 3/16"*2-5/16" 15
32 Bucket Assembly 1
33 Lubrication Fitting 11
34 Boom Extension 1
35 Clevis Pin No.2 2
36 Main Boom 1
37 Lubrication Fitting 6
38 Boom Pivot 1
39 Hose Assembly No.3 1
40 Hose Assembly No.8 1
41 Safety Latch 1
42 Pin 2
43 Spring 1
44 Washer 15/16" 1
45 Extension Leg (Left) 1

46A Hose Assembly No.2 2

47 Hex Nut 5/16" 5
48 Hex Hd. Bolt 5/16"*3/4” 3
49 Cover 1
50 Axle & Hub Assembly 2

Part Description Qty.

51 Hair Pin Clip 1/8"*1-3/4" 2
52 Tire 2
53 Lug Nut 2
54 Outlet Hose 1
55 Hose Clamp 2
56 Safety Chain 1
57 Hexnut 3/8" 3
58 Hitch Coupler 1
59 Nut ½ 1
60 Hex Hd. Bolt 3/8"*2-3/4" 2
61 Hex Hd. Bolt 3/8"*3-1/2" 1
62 Hex Hd. Bolt 5/16"*1" 2
63 Washer 6
64 90 Elbow Fitting No.4 1
65 Hydraulic Pump 1
66 90 Deg. Elbow Fitting No.3 1
67 Pump Key 1
68 Couping-Pump Side 1
69 Hex Screw 2
70 Mounting Bracket - Pump 1
71 Engine Key 1
72 Hex Hd. Bolt 5/16"*1-3/4" 4
73 Seat 1
74 Engine 1
75 Hex Hd. Bolt 5/16" 4
76 Couping-Engine Side 1
77 Hair Pin Clip 1
78 Wheel 1
79 Lock Pin 1
80 Weight Block 1
81 Hex Hd. Bolt 5/8"*4-3/4" 1
82 Lock Pin No.2 2
83 Washer 5/8 1
84 Nut 5/8" 1
85 90 Elbow Fitting No.2 1
86 Hex Hd.bolt 5/16"*1-1/8" 4
87 “O” Ring Seal 1
88 Oil Filter 1
89 Oil Plug R3/8" 1
90 Frame Assembly 1
91 Clevis Pin No.3 1
92 Washer 2
93 Pivot Pin 1
94 Bushing 1
95 Snap Spring 1
96 Spring Washer 1/4" 2
97 Hex Hd. Bolt 1/4"*1/2" 2
98 Spring Hair Pin Clip 1
99 Spider 1

Record Product’s Serial Number Here:

Note: If product has no serial number,

record month and year of purchase instead.

Page 26 For technical questions, please call 1-888-866-5797. Item 62365

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

Main Assembly Diagram

SAFETYSETUPOPERATIONMAINTENANCE

Page 27For technical questions, please call 1-888-866-5797.Item 62365

Parts List B - Cylinder Head

Part Description Qty.

1B Cylinder Head Assembly 1

SAFETY SETUP OPERATION MAINTENANCE

2B Intake Valve Guide 1
3B Exhaust Valve Guide 1
4B Valve Guide Clip 1
5B Cover 1
6B Packing 1
7B Breathing Tube 1
8B Spark Plug 1
9B Cylinder Gasket 1

Diagram B - Cylinder Head

Part Description Qty.

10B Muffler Gasket 1
11B Pin 2
12B Bolt 6x14 4
13B Bolt 8x55 4
14B Intake Bolt 2
15B Exhaust Bolt 2
16B Intake Valve Seat 1
17B Exhaust Valve Seat 1
18B Cylinder Head 1

Note: When ordering replacement parts from this diagram, use the suffix “B”.

Page 28 For technical questions, please call 1-888-866-5797. Item 62365

Parts List C - Crank Case

Part Description Qty.

1C Crank Case Assembly 1
2C Oil Level Switch 1
3C Governor Gear Assembly 1
4C Weight 2
5C Governor Gear 1
6C Weight Pin 2
7C Slider 1
8C Shaft Arm 1

9C Drain Plug 2
10C Washer 2
11C Washer 2
12C Clip 1

Diagram C - Crank Case

Part Description Qty.

13C Ball Bearing 1
14C Oil Seal 1
15C O-Ring 1
16C Nut 1
17C Washer 1
18C R-Pin 1
19C Bolt 6x12 3
20C Shaft 1
21C Governor Assembly 1
22C Oil Alarm 1
23C Bolt 1

SAFETYSETUPOPERATIONMAINTENANCE

Note: When ordering replacement parts from this diagram, use the suffix “C”.

Page 29For technical questions, please call 1-888-866-5797.Item 62365

Parts List D - Crank Case Cover

Part Description Qty.

1D Bolt 6

SAFETY SETUP OPERATION MAINTENANCE

2D Oil Stick 1
3D Gasket 2
4D Cover 1
5D Oil Seal 1
6D Bearing 1

Diagram D - Crank Case Cover

Part Description Qty.

7D Pin 2
8D Oil Filler Cap 1

9D Gasket Case Cover 1
10D Oil Fill Assembly 1
11D Cap Assembly 1

Note: When ordering replacement parts from this diagram, use the suffix “D”.

Page 30 For technical questions, please call 1-888-866-5797. Item 62365

Parts List E - Crankshaft/Piston

Part Description Qty.

1E Ring Set 1
2E Piston 1
3E Pin 1
4E Rod Assembly 1
5E Crankshaft Assembly 1
6E Bolt 2
7E Clip 2
8E Timing Gear 1
9E Gear 1

Diagram E - Crankshaft/Piston

Part Description Qty.

10E Crankshaft 1
11E First Ring 1
12E Second Ring 1
13E Oil Ring 2
14E Bushing Ring 1
15E Connecting Rod 1
16E Connecting Rod Bearing Cap 1
17E Key 1

SAFETYSETUPOPERATIONMAINTENANCE

Note: When ordering replacement parts from this diagram, use the suffix “E”.

Page 31For technical questions, please call 1-888-866-5797.Item 62365

Parts List F - Gas Distribution Adjustment System

Part Description Qty.

1F Nut 2

SAFETY SETUP OPERATION MAINTENANCE

2F Rocker Arm 2
3F Valve Rocker 2
4F Pivot Bolt 2
5F Plate Assembly 1
6F Block Guide 2
7F Push Rod Guide 1
8F Push Rod 2
9F Valve Lifter 2
10F Valve Cap 2
11F Valve Spring Retainer 2
12F Valve Spring 2
13F Guide Seal 1

Part Description Qty.

14F Camshaft Assembly 1
15F Reducer Pin 1
16F Reducer 1
17F Matching Block Pin 2
18F Matching Block 1
19F Flying Block Pin 1
20F Spring Pin 1
21F Flying Block Spring 1
22F Flying Block 1
23F Camshaft 1
24F Exhaust Valve 1
25F Intake Valve 1

Diagram F - Gas Distribution Adjustment System

Note: When ordering replacement parts from this diagram, use the suffix “F”.

Page 32 For technical questions, please call 1-888-866-5797. Item 62365

Parts List G - Starter Subassembly

Part Description Qty.

1G Starter Assembly 1
2G Set Screw 1
3G Ratchet Guide 1
4G Friction Spring 1
5G Starter Ratchet 2
6G Return Spring 2
7G Recoil Starter Reel 1
8G Recoil Starter Spring 1
9G Recoil Starter Knob 1

Diagram G - Starter Subassembly

Part Description Qty.

10G Fan Cover 1
11G Rope 1
12G Bolt 6x8 3
13G Bolt 6x10 4
14G Fan Cover 1
15G Switch Assembly 1
16G Recoil Starter 1
17G Fan Cover 1
18G Stop Switch Assembly 1

SAFETYSETUPOPERATIONMAINTENANCE

Note: When ordering replacement parts from this diagram, use the suffix “G”.

Page 33For technical questions, please call 1-888-866-5797.Item 62365

Parts List H - Diversion Assembly

Part Description Qty.

1H Bolt 6x20 1

SAFETY SETUP OPERATION MAINTENANCE

2H Side Plate 1
3H Bolt 6x8 2

Diagram H - Diversion Assembly

Part Description Qty.

4H Shroud 1

5H Side Plate 1

6H Grommet 1

Note: When ordering replacement parts from this diagram, use the suffix “H”.

Page 34 For technical questions, please call 1-888-866-5797. Item 62365

Parts List J - Carburetor

Part Description Qty.

1J Carburetor Assembly 1
2J Carburetor 1
3J Main Nozzle 1
4J Main Jet 1
5J Float Valve 1
6J Valve Set Spring 1
7J Float 1
8J Float Pin 1
9J Oil Cup Gasket 1

10J Oil Cup 1

11J Gasket Bolt 1
12J Bolt 1
13J Drain Bolt 1
14J Drain Bolt Gasket 1
15J Fuel Strainer Cup 1
16J Fuel Strainer Cup Packing 1
17J Fuel Packing 1
18J Lever 1

Diagram J - Carburetor

Part Description Qty.

19J Lever Spring 1
20J Setting Plate 1
21J Screw 3x8 2
22J Jet Set 1
23J Pilot Jet Set 1
24J Choke Lever Assembly 1
25J Choke Lever 1
26J Choke Lever Pin 1
27J Choke Set 1
28J Screw 1
29J Screw Spring 1
30J Throttle Stop Screw 1
31J Packing 1
32J Carburetor Packing 1
33J Carburetor Insulation 1
34J Packing 1
35J Throttle Valve 1

SAFETYSETUPOPERATIONMAINTENANCE

Note: When ordering replacement parts from this diagram, use the suffix “J”.

Page 35For technical questions, please call 1-888-866-5797.Item 62365

Parts List K - Flywheel/Coil Assembly

Part Description Qty.

1K Ignition Assembly 1

SAFETY SETUP OPERATION MAINTENANCE

2K Ignition Coil 2
3K Noise Suppression Cap Assembly 1
4K Stop Switch Cord 1
5K Bolt 6x30 2
6K Flywheel Cover 1
7K Charge Coil Assembly 1
8K Cooling Fan 1

Diagram K - Flywheel/Coil Assembly

Part Description Qty.

9K Starter Pulley 1
10K Nut 1
11K Flywheel 1
12K Charge Coil 1
13K Bolt 6x35 2
14K Cord Clamp 1
15K Bolt 6x8 1

Note: When ordering replacement parts from this diagram, use the suffix “K”.

Page 36 For technical questions, please call 1-888-866-5797. Item 62365

Parts List M - Control System

Part Description Qty.

1M Bolt 2
2M Governor Spring 1
3M Bolt 1
4M Governor Arm 1
5M Nut 1
6M Throttle Return Spring 1
7M Linkage 1
8M Control Assembly 1

9M Nut 1
10M Fixing Plate 1
11M Washer 1

Diagram M - Control System

Part Description Qty.

12M Washer 1
13M Retainer Assembly 1
14M Spring 1
15M Screw 5x35
16M Cable Return Spring 1
17M Control Handle 1
18M Screw 5x25 1
19M Back Plate 1
20M Screw 4x6 1
21M Locking Ring 1
22M Clip 1

SAFETYSETUPOPERATIONMAINTENANCE

Note: When ordering replacement parts from this diagram, use the suffix “M”.

Page 37For technical questions, please call 1-888-866-5797.Item 62365

Parts List N - Air Cleaner

Part Description Qty.

1N Air Cleaner Assembly 1

SAFETY SETUP OPERATION MAINTENANCE

2N Elbow 1
3N Short Collar 2
4N Long Collar 2
5N Elbow Packing 1
6N Bolt 6x20 1
7N Nut 6mm 2
8N Nut 2
9N Air Cleaner Cover 1

Diagram N - Air Cleaner

Part Description Qty.

10N Air Cleaner Element Assembly 1
11N Grommet 1
12N Outer Filter 1
13N Element 1
14N Base 1
15N Air Cleaner Assembly 1
16N Cover 1
17N Screw 2

Note: When ordering replacement parts from this diagram, use the suffix “N”.

Page 38 For technical questions, please call 1-888-866-5797. Item 62365

Parts List P - Muffler

Part Description Qty.

1P Muffler 1
2P Nut 8mm 1
3P Muffler Cover 1

Diagram P - Muffler

Part Description Qty.

4P Screw 5x8 4
5P Muffler Assembly 1
6P Muffler Case 1

SAFETYSETUPOPERATIONMAINTENANCE

Note: When ordering replacement parts from this diagram, use the suffix “P”.

Parts List R - Fuel Tank

Part Description Qty.

1R Clip Tube 2
2R Joint Assembly 1
3R Fuel Tank 1
4R Fuel Filler Assembly 1
5R Fuel Cap Gasket 1
6R Fuel Strainer 1
7R Bolt 6x25 1

Part Description Qty.

8R Joint Packing 1

9R Nut 6mm 2
10R Fuel Line 1
11R Fuel Cap 1
12R Fuel Tank Assembly 1
13R Adapter/Connector 1

Diagram R - Fuel Tank

Note: When ordering replacement parts from this diagram, use the suffix “R”.

Page 39For technical questions, please call 1-888-866-5797.Item 62365

3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • 1-888-866-5797