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: productsupport@harborfreight.com
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
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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
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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
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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
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