EARTH AUGER 9 HP ROBIN® ENGINE Model 94143 Set up And Operating Instructions Caution Your warranty is voided if: 1. You do not put hydraulic oil in the Auger’s oil assembly prior to its first use. 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. 2. You do not put engine oil in the Engine’s crankcase prior to its first use. Before each use, check the oil level.
SPECIFICATIONS Digging Capacity Hydraulic Pump Type Auger Drive Auger Bit Size Controls Tires Maximum Speed Hydraulic Oil Capacity Recommended Hydraulic Oil Hitch Type Engine Type 8” Diameter x 36” Deep Single Stage 2,000 PSI / 110 RPM / 3,800 in-lb Torque with Safety Relief Valve 8” Diameter x 36” Long with Safety Shear Pin (Included) Forward and Reverse Operation / Rubber Grip Handles Easy Access Kill Switch On Handle Quantity: 2 Size: 4.8/4.00-8 Air Pressure: 60 PSI Load Range: B Maximum Load: 590 lb.
PERSONAL SAFETY 1. Stay alert. Watch what you are doing, and use common sense when operating a power tool. Do not use a power tool while tired or under the influence of drugs, alcohol, or medication. A moment of inattention while operating power tools may result in serious personal injury. 2. Dress properly. Do not wear loose clothing or jewelry. Contain long hair. Keep your hair, clothing, and gloves away from moving parts. Loose clothes, jewelry, or long hair can be caught in moving parts. 3.
6. Use only accessories that are recommended by the manufacturer for your model. Accessories that may be suitable for one tool may become hazardous when used on another tool. SERVICE 1. Tool service must be performed only by qualified repair personnel. Service or maintenance performed by unqualified personnel could result in a risk of injury. 2. When servicing a tool, use only identical replacement parts. Follow instructions in the “Inspection, Maintenance, And Cleaning” section of this manual.
. 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.
7. Do not refill the Fuel Tank while the Engine is running or while the Engine is still hot. Do not operate the Auger with known leaks in the fuel system. 8. Use only Engine manufacturer recommended fuel and oil. MECHANICAL PRECAUTIONS 1. Prior to performing service, maintenance, or cleaning procedures, always make sure the Gasoline Engine’s Power Switch is in its “OFF” position. Allow the Engine to completely cool. Then, remove the spark plug from the Engine. 2.
5. Do not exceed 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. 6. Before towing, always examine the Auger for proper Tire air pressure (60 PSI) 7. Prior to towing the Auger, make sure to read and understand all instructions 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.
ASSEMBLY INSTRUCTIONS To Connect The Boom To The Frame Assembly: BOOM (66) HEX HEAD BOLTS (2) NUTS (20) HOSES & WIRES FRAME ASSY. (35) FIGURE A 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.) 2. Use the 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: HANDLE ASSEMBLY (69) FIGURE B HEX HEAD BOLT (67) 1.
To Connect The Hydraulic Hoses: HIGH PRESSURE HOSE (10) PUMP INLET HOSE (8) HYDRAULIC PUMP (52) HYDRAULIC PUMP MOUNT BRACKET (14) WIRING HARNESS (72) RETURN LINE (40) 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.) 2.
2. Locate the RED Snap-In Plug (+) in the Wiring Harness. Then connect the RED Snap-In Plug to the BLACK Snap-in Receptacle extending from under the Engine’s (15) Gas Tank. (See Figure D.) To Attach The Auger Coupler: MOTOR PIVOT BRACKET (58) HYDRAULIC MOTOR (4) AUGER COUPLER (59) INSERT HERE HITCH PIN (57) FIGURE E HITCH PIN (57) 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.) 2.
To Attach An Bit: Bit With One Mounting Hole Bit With Two Mounting Holes HYDRAULIC MOTOR (4) AUGER COUPLER (59) HITCH PIN (57) BIT WITH TWO MOUNTING HOLES HITCH PIN (57) HYDRAULIC MOTOR (4) AUGER COUPLER (59) HITCH PIN (57) BIT WITH ONE MOUNTING HOLE FIGURE F 1. Slide the Bit (65) onto the Auger Coupler (59) until the mounting hole in the Bit aligns with the mounting hole in the Auger Coupler. Then lock the Bit in place, using one Hitch Pin (57). (See Figure F.) 2.
PRE-OPERATING INSTRUCTIONS DANGER! Always make sure the Auger’s Kill Switch (68) and the Gasoline Engine’s Power Switch are in their “OFF” positions prior to performing any service, maintenance, or cleaning of the Auger or Engine. To Add Engine Oil: 1. IMPORTANT! Prior to first using the Auger, the Engine MUST be filled with a high quality 10W-30 grade engine oil. (See Engine manufacturer’s manual for complete instructions.) 2. To do so, unscrew and remove the Engine Oil Dipstick.
FILL WITH 10 WEIGHT HYDRAULIC OIL HYDRAULIC OIL TANK (33) FIGURE G 2. To do so, remove the Hydraulic Oil Tank’s Oil Plug (36). Fill the Oil Tank to approximately one inch from the top of the Tank. (The total hydraulic oil capacity is 4 gallons.) Then, replace the Oil Plug. (See Figure G, above.) 3. Make sure the Bit (65) is elevated from the ground surface.
6. Squeeze the right side of the Trigger (61) until the Bit (65) spins smoothly in a clockwise (digging) rotation. (See Figure H.) 7. Turn the Engine Kill Switch (68) to its “OFF” position to shut off the Engine. (See Figure H.) 8. Wait until the Bit (65) stops rotating. Then relieve the hydraulic system pressure by squeezing the right side of the Trigger (61) several times while the Engine (15) is off. (See Figure H.) 9.
4. Squeeze the right side of the Trigger (61) to dig. (See Figure H.) 5. As you dig, push the Auger away from you. This will compensate for the pivoting action of the machine and keep your hole straight and vertical. (See Figure I.) 6. Periodically, lift the Bit (65) to clear loose dirt from the hole. This will help to keep the Auger from binding as well as minimize the dirt being lifted out of the hole. (See Figure I.) 7.
DANGER! IMPORTANT INFORMATION HITCH COUPLER (22) REMOVE AUGER (65) HITCH PIN (57) TOWING CHAINS (26) This Auger’s Hitch Coupler (22) MUST be properly secured to the hitch ball of the towing vehicle. After 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.
7. With assistance, place the Hitch Coupler (22) over the vehicle’s Hitch Ball and push down on the Handle until the Trigger locks in the slot. Pull up and down on the Coupler to make sure the Hitch Ball is fitting snugly in the Coupler. There should be no play between the Hitch Ball and Coupler. If there is play, tighten the Adjustment Nut until no play is present. If the Adjustment Nut is too tight, the Handle will not lock. (See Figure K.) 8. Reinstall the Safety Pin and “R” Pin. (See Figure K.) 9.
INSPECTION, MAINTENANCE, AND CLEANING DANGER! Make sure the Engine Kill Switch (68) of the Auger is in its “OFF” position and the Power Switch of the Engine is in its “OFF” position prior to performing any inspection, maintenance, or cleaning of the machine. 1. Before each use, inspect the general condition of the Auger.
5. To check and adjust the Linkage: LOCKING NUT TRIGGER HANDLE SCREWDRIVER (NOT INCLUDED) CONTROL VALVE BALL COUPLER LINKAGE FIGURE L SPOOL AND CLEVIS a. Squeeze the right side of the Trigger (61). Check to see that the Spool in the Control Valve is pushed in against its stop. If the Trigger hits against the Handle before the Spool is pushed in against its stop, the Linkage needs to be adjusted. (See Figure L.) b. Squeeze the left side of the Trigger (61).
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 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.
SKU 94143 26 25 27 23 22 19 18 30 31 28 29 24 21 20 17 16 47 For technical questions, please call 1-800-444-3353 20 33 34 35 46 45 49 13 51 8 40 38 39 52 53 9 41 42 6 71 43 7 70 44 2 2 54 48 Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts. NOTE: 36 37 50 46 14 13 12 11 10 72: Wiring Harness not shown. (See Figure C, page 9.
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.
