Central Hydraulics 94143 Manuale di installazione
EARTH AUGER
9 HP ROBIN®ENGINE
Model
94143
SET UP AND OPERATING INSTRUCTIONS
CAUTION
Your warranty is voided if:
You do not put hydraulic oil in the Auger’s oil assembly prior to its rst use.1.
Before each use, check the oil level. Never run the Auger with low or no hydraulic oil.
Running the Auger with low or no hydraulic oil will permanently damage the unit.
You do not put engine oil in the Engine’s crankcase prior to its rst use.2.
Before each use, check the oil level. Never run the Engine with low or no engine oil.
Running the Engine with low or no oil will permanently damage the unit.
Diagrams within this manual may not be drawn proportionally.
Due to continuing improvements, actual product may differ slightly from the product described herein.
Distributed exclusively by Harbor Freight Tools®.
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our website at: http://www.harborfreight.com
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
Copyright© 2006 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 or replacement parts, please call 1-800-444-3353.
Manual Revised 07k
SKU 94143 For technical questions, please call 1-800-444-3353 PAGE 2
SPECIFICATIONS
Digging Capacity 8” Diameter x 36” Deep
Hydraulic Pump Type Single Stage
Auger Drive 2,000 PSI / 110 RPM / 3,800 in-lb Torque with Safety Relief Valve
Auger Bit Size 8” Diameter x 36” Long with Safety Shear Pin (Included)
Controls Forward and Reverse Operation / Rubber Grip Handles
Easy Access Kill Switch On Handle
Tires Quantity: 2
Size: 4.8/4.00-8
Air Pressure: 60 PSI
Load Range: B
Maximum Load: 590 lb. Each
Maximum Speed 25 MPH
Hydraulic Oil Capacity 4 Gallons
Recommended Hydraulic Oil 10 Weight
Hitch Type 2” Ball Hitch with Safety Chain
Engine Type 9 HP Robin® / Unleaded Gasoline Powered / Pull Start
Automatic Low Oil Shut Down
SAVE THIS MANUAL
You will need this manual for the safety warnings and precautions, assembly,
operating, inspection, maintenance and cleaning procedures, parts list and assembly
diagram. Keep your invoice with this manual. Write the invoice number on the inside
of the front cover. Keep this manual and invoice in a safe and dry place for future refer-
ence.
GENERAL SAFETY RULES AND PRECAUTIONS
WARNING! Read all instructions
Failure to follow all instructions listed below may result in re, and/or
serious injury.
SAVE THESE INSTRUCTIONS
WORK AREA
Keep your work area clean and well lit.1. Cluttered benches and dark areas
invite accidents.
2. Do not operate power tools in explosive atmospheres, such as in
the presence of ammable liquids, gases, or dust. Power tools
create sparks which may ignite the dust or fumes.
Keep bystanders away while operating a power tool.3. Distractions can cause
you to lose control. Protect others in the work area from debris such as chips
and sparks. Provide barriers or shields as needed.
REV 09b
SKU 94143 For technical questions, please call 1-800-444-3353 PAGE 3
PERSONAL SAFETY
Stay alert. Watch what you are doing, and use common sense when oper-1.
ating a power tool. Do not use a power tool while tired or under the inu-
ence of drugs, alcohol, or medication. A moment of inattention while operating
power tools may result in serious personal injury.
Dress properly. Do not wear loose clothing or jewelry. Contain long2.
hair. Keep your hair, clothing, and gloves away from moving parts. Loose
clothes, jewelry, or long hair can be caught in moving parts.
Avoid accidental starting.3. Be sure the Gasoline Engine’s Power Switch is
in its “OFF” position before moving the Auger and before performing any
service, maintenance, or cleaning procedures on the unit.
Remove adjusting keys or wrenches before turning the Auger on.4. A wrench
or a key that is left attached to a rotating part of the machine may result in per-
sonal injury.
Do not overreach. Keep proper footing and balance at all times.5. Proper
footing and balance enables better control of the power tool in unexpected situa-
tions.
6. Use safety equipment. Always wear eye protection. Always wear
ANSI-approved safety impact goggles when using this product. ANSI-
approved hearing protection, helmet, and steel toed shoes must also be
used.
TOOL USE AND CARE
Do not force the tool. Use the correct tool for your application.1. The correct
tool will do the job better and safer at the rate for which it is designed.
Do not use the Auger if the Gasoline Engine’s Power Switch does not turn it2.
on or off. Any tool that cannot be controlled with its power switch is dangerous
and must be replaced.
Store idle tools out of reach of children and other untrained persons.3. Tools
are dangerous in the hands of untrained users.
Maintain tools with care.4. Properly maintained tools with a sharp cutting edge
are less likely to bind and are easier to control. Do not use a damaged tool. Tag
damaged tools “Do not use” until repaired.
Check for misalignment or binding of moving parts, breakage of parts, and5.
any other condition that may affect the tool’s operation. If damaged, have
the tool serviced before using. Many accidents are caused by poorly main-
tained tools.
SKU 94143 For technical questions, please call 1-800-444-3353 PAGE 4
Use only accessories that are recommended by the manufacturer for your6.
model. Accessories that may be suitable for one tool may become hazardous
when used on another tool.
SERVICE
Tool service must be performed only by qualied repair personnel. 1. Service
or maintenance performed by unqualied personnel could result in a risk of injury.
When servicing a tool, use only identical replacement parts. Follow in-2.
structions in the “Inspection, Maintenance, And Cleaning” section of this
manual. Use of unauthorized parts or failure to follow maintenance instructions
may create a risk of electric shock or injury.
SPECIFIC SAFETY RULES AND PRECAUTIONS
CAUTION
Your warranty is voided if:
You do not put hydraulic oil in the Auger’s oil assembly prior to its rst use.a.
Before each use, check the oil level. Never run the Auger with low or no hy-
draulic oil.
Running the Auger with low or no hydraulic oil will permanently damage the
unit.
You do not put engine oil in the Engine’s crankcase prior to its rst use.b.
Before each use, check the oil level. Never run the Engine with low or no
engine oil.
Running the Engine with low or no oil will permanently damage the unit.
Maintain labels and nameplates on the Auger.1. These carry important informa-
tion. If unreadable or missing, contact Harbor Freight Tools for a replacement.
2. DANGER! Avoid buried cables and pipes. The Auger will cut through
buried electrical cable and gas pipes, resulting in serious injury or death. Always
contact your local utilities companies before drilling.
3. DANGER! Tip-over and crush hazard. This machine can roll away, tip over,
and crush you. Do not drill on inclines steeper than 15 degrees. The Auger is
extremely difcult to control on steep inclines.
4. DANGER! This Auger is designed for outdoor use only. Do not oper-
ate the Auger in a closed area or in a poorly ventilated area. When running, the
Engine (15) of this Auger produces carbon monoxide, a colorless, odorless, toxic
fume that, when inhaled, can cause serious personal injury or death. Whenever
possible, use a carbon monoxide detector (not included) to detect excessive car-
bon monoxide fumes in the work area and in the surrounding area.
SKU 94143 For technical questions, please call 1-800-444-3353 PAGE 5
5. DANGER! Debris entanglement. The rotating Bit (65) can get tangled in
debris left on the ground, and can result in personal injury and damage to the
machine. Before digging, make sure the area is clear of debris that can wind
around the Auger during operation.
6. DANGER! Rotating Auger hazard. Entanglement in the Bit (65) will cause
serious injury or death. Keep away from the Auger when the Engine (15) is
running. Do not clean the Auger while the Engine is on. The Auger can grab
objects, such as shovels, and throw them. Do not remove the Hitch Pins (57) or
Auger while the Engine is running. Make sure all nuts and bolts are tightened
before using.
Before each use, always examine the Auger for proper Tire air pressure (607.
PSI), loose bolts and nuts, structural cracks and bends, and any other con-
dition that may affect its safe operation. Do not use the Auger even if minor
damage appears.
Industrial applications must follow OSHA guidelines.8.
Never leave the Auger unattended when its Engine (15) is running.9. Turn off
the Engine, and wait until the Bit (65) completely stops rotating before leaving.
Do not allow children and other unauthorized people to handle or play with10.
the Auger.
Do not force the Auger.11. This machine will do the work better and safer at the
speed and capacity for which it was designed.
FIRE AND EXPLOSION PRECAUTIONS
Gasoline fuel and fumes are ammable, and potentially explosive. 1. Use
proper fuel storage and handling procedures. Always have multiple ABC class
re extinguishers nearby.
Keep the Auger and surrounding areas clean at all times.2.
When spills of fuel or oil occur, they must be cleaned up immediately.3. Dis-
pose of uids and cleaning materials as per any local, state, or federal codes and
regulations. Store oil rags in a covered metal container.
Never store fuel or other ammable materials near the Auger.4.
Do not smoke, or allow sparks, ames, or other sources of ignition around 5.
the Auger.
Keep grounded conductive objects, such as tools, away from exposed, live6.
electrical parts and connections to avoid sparking or arcing. These events
could ignite fumes or vapors.
SKU 94143 For technical questions, please call 1-800-444-3353 PAGE 6
Do not rell the Fuel Tank while the Engine is running or while the Engine 7.
is still hot. Do not operate the Auger with known leaks in the fuel system.
Use only Engine manufacturer recommended fuel and oil.8.
MECHANICAL PRECAUTIONS
Prior to performing service, maintenance, or cleaning procedures, always1.
make sure the Gasoline Engine’s Power Switch is in its “OFF” position. Al-
low the Engine to completely cool. Then, remove the spark plug from the
Engine.
Do not alter or adjust any part of the Auger or Engine that is assembled and2.
supplied by the manufacturer.
Always follow and complete scheduled Auger and Engine maintenance.3.
CHEMICAL PRECAUTIONS
Avoid contact with hot fuel, oil, exhaust fumes, and solid surfaces.1.
Avoid body contact with fuels, oils, and lubricants used in the Auger and2.
Engine. If swallowed, seek medical treatment immediately. Do not induce
vomiting if fuel is swallowed. For skin contact, immediately wash with soap and
water. For eye contact, immediately ush eyes with clean water.
NOISE PRECAUTIONS
Prolonged exposure to noise levels above 85 dBA is hazardous to hearing.
Always wear ANSI-approved hearing protection when operating the Auger.
TOWING PRECAUTIONS
DANGER! Towing hazards. Serious injury or death can occur if these
towing rules are not followed:
Only tow the Auger with its Bit (65) removed.1.
Be aware of the length the Auger adds to your vehicle.2.
Only tow with the Towing Chains (26) attached to the vehicle. Make sure the 3.
Safety Chains are attached to the towing vehicle with the same length for each
side. Do not allow the Safety Chains to drag on the ground.
Never ride or transport cargo on the Auger.4.
SKU 94143 For technical questions, please call 1-800-444-3353 PAGE 7
Do not exceed 5. 25 MPH (or less when conditions warrant) when towing the Auger.
This machine is designed for off-road use only and is not DOT-approved for
highway or public road use.
Before towing, always examine the Auger for proper Tire air pressure (60 PSI)6.
Prior to towing the Auger, make sure to read and understand all instructions 7.
and safety precautions as outlined in the owner’s manual for the towing vehicle.
Make sure the towing vehicle is capable of towing the Auger. Make sure the hitch
on the towing vehicle is capable of towing the Auger. The towing capacity of the
hitch is typically stamped on the hitch drawbar.
Make sure the Hitch Coupler (22) and the vehicle’s ball hitch (not included) are 8.
of equal mating size (2”) and are rated equal to or greater than the weight of the
Auger.
Whenever possible, park the Auger on a at, level surface and chock both Tires 9.
(31) to keep the Auger from accidently moving.
Care must be taken when backing up the Auger. Only back up the Auger on a 10.
straight path. If the Auger is allowed to turn off the straight path while backing
up, the machine could jackknife, causing severe damage to the Auger and towing
vehicle.
MISCELLANEOUS PRECAUTIONS
People with pacemakers should consult their physician(s) before use. Electro-1.
magnetic elds in close proximity to heart pacemaker could cause pacemaker
interference or pacemaker failure. Caution is necessary when near engine’s
magneto or recoil starter.
The warnings and precautions discussed in this manual cannot cover all possible 2.
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 prod-
uct, but must be supplied by the operator.
UNPACKING
When unpacking, check to make sure all the parts shown on the Parts List on
page 20 are included. If any parts are missing or broken, please call Harbor Freight
Tools at the number shown on the cover of this manual as soon as possible.
SKU 94143 For technical questions, please call 1-800-444-3353 PAGE 8
ASSEMBLY INSTRUCTIONS
To Connect The Boom To The Frame Assembly:
BOOM (66)
HOSES & WIRES
HEX HEAD BOLTS (2)
NUTS (20)
FIGURE A
FRAME ASSY. (35)
1. Feed the Hoses and Wires extending from the bottom of the Boom (66) through
the opening at the rear of the Frame Assembly (35). (See Figure A.)
Use the2. six Hex Head Bolts (2) and six Nuts (20) to secure the Boom (66) to the
Frame Assembly (35). (See Figure A.)
To Adjust The Handle Angle:
HEX HEAD BOLT (67)
HANDLE ASSEMBLY (69)
FIGURE B
1. The Handle Assembly (69) can be adjusted 16° to the left and 16° to the right.
This will allow you to operate the Auger on uneven surfaces. (See Figure B.)
Loosen the Hex Head Bolt (67) to rotate the Handle Assembly (69). Once the 2.
Handle Assembly angle has been adjusted, rmly retighten the Hex Head Bolt.
(See Figure B.)
SKU 94143 For technical questions, please call 1-800-444-3353 PAGE 9
To Connect The Hydraulic Hoses:
RETURN LINE (40)
WIRING HARNESS (72)
PUMP INLET HOSE (8)
HIGH PRESSURE HOSE (10)
HYDRAULIC PUMP (52)
HYDRAULIC PUMP
MOUNT BRACKET (14)
OIL FILTER (70)
FIGURE C
1. Make sure there is enough slack in the Hydraulic Hoses and Wiring Harness (72)
to form a large, vertical loop. This will prevent the Hoses and wires from pulling
taut while the engine pivots during use and, therefore, help the Engine (15) pivot
to stay level. (See Figure C.)
Attach the High Pressure Hose (10) to the Hydraulic Pump (52). Attach the 2.
Pump Inlet Hose (8) to the Hydraulic Pump Mount Bracket (14). Then, attach the
Return Line (40) to the Oil Filter (70). (See Figure C.)
To Connect The Wiring Harness:
FIGURE D
ENGINE
GROUNDING
SCREW
BLUE (–)
GROUND WIRE
BLACK (+) ENGINE SNAP-IN RECEPTACLE
RED (+) WIRING HARNESS SNAP-IN PLUG
TO LOW OIL
SENSOR
1. Locate the BLUE Ground (–) Wire in the Wiring Harness. Then secure the BLUE
Ground Wire, using a bolt located on the Engine’s (15) Mount. (See Figure D.)
REV 07l
SKU 94143 For technical questions, please call 1-800-444-3353 PAGE 10
Locate the RED Snap-In Plug (+) in the Wiring Harness. Then connect the RED 2.
Snap-In Plug to the BLACK Snap-in Receptacle extending from under the En-
gine’s (15) Gas Tank. (See Figure D.)
To Attach The Auger Coupler:
HYDRAULIC MOTOR (4)
AUGER COUPLER (59)
INSERT HERE
HITCH PIN (57)
HITCH PIN (57)
FIGURE E
MOTOR PIVOT BRACKET (58)
1. Locate the end of the Auger Coupler (59) with two holes. This is the end of the
Auger Coupler that points up into the Hydraulic Motor (4). (See Figure E.)
Slide the Auger Coupler (59) into the Hydraulic Motor (4), and lock the Auger 2.
Coupler in place, using one Hitch Pin (57). (See Figure E.)
Insert one Hitch Pin (57) into the Motor Pivot Bracket (58). This Hitch Pin will be 3.
used when moving and towing the Auger. (See Figure E.)
Indice
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