” GAS IMPACT WRENCH Model 95666 ASSEMBLY AND OPERATING INSTRUCTIONS Due to continuing improvements, actual product may differ slightly from the product described herein. CAUTION! Your Warranty Is Voided If: You do not operate the Gas Impacrt Wrench with the proper 25:1 fuel mix in its fuel tank. Never run the Engine with an improper fuel mix, low or no fuel mix. Running the Engine with an improper fuel mix, low or no fuel mix, will permanently damage the unit. ® 3491 Mission Oaks Blvd.
PRODUCT SPECIFICATIONS Item Drive Size Maximum Bolt Capacity Output Torque Range Gear Box Settings Engine Specifications Accessories Net Weight Description 1” 1-5/8” 406 < - > 1250 Ft./Lb. Reverse/Neutral/Forward Engine Type: Two-Stroke / Forced Air Cooling / Single Cylinder / Recoil Start Engine Displacement: 51.7 cc Engine Idling RPM: 2700 Engine No Load RPM: 9880 Engine Torque RPM: 7120 Fuel Tank Capacity: 34 Ounces (0.26 Gal.
sparks which may ignite the dust or fumes. 3. Keep bystanders, children, and visitors away while operating a power tool. Distractions can cause you to lose control. Provide barriers or shields as needed. Children should never be in the work area. 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.
5. Check for misalignment or binding of moving parts, breakage of parts, and any other condition that may affect the tool’s operation. If damaged, have the tool serviced before using. Many accidents are caused by poorly maintained tools. 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.
6. Make sure the Impact Wrench is completely stopped before changing the rotational direction of the tool. 7. Always maintain a firm grip on the Impact Wrench with both hands. Beware of start up torque. 8. WARNING! This Impact Wrench is designed for outdoor use only. Do not operate the Impact Wrench in a closed area or in a poorly ventilated area.
assembled and supplied by the manufacturer. 3. Always follow and complete scheduled Impact Wrench and Engine maintenance. CHEMICAL PRECAUTIONS 1. Avoid contact with hot fuel, oil, exhaust fumes, and solid surfaces. 2. Avoid body contact with fuels, oils, and lubricants used in the Impact Wrench and Engine. If swallowed, seek medical treatment immediately. Do not induce vomiting if fuel is swallowed. For skin contact, immediately wash with soap and water.
PRODUCT FEATURES 1” SOCKET SQUARE DRIVE (188D) HAMMER HOUSING (171D) GEAR OIL PORT (210D) SUPPORT HANDLE (180D) GEAR CASE (209D) GEAR CHANGE LEVER (233D) CENTRIFUGAL CLUTCH (199D) GASOLINE ENGINE PRIMER (161.1C) CHOKE LEVER (69) THROTTLE RECOIL ASSEMBLY STOP STARTER (102) BUTTON (125B) (103) FIGURE A HANDLE ASSEMBLY (107) PRE-START INSTRUCTIONS To Fill The Fuel Tank: 1. IMPORTANT! Your warranty is voided if: You do not operate the Impact Wrench with the proper 25:1 fuel mix in its Fuel Tank.
4. Fill the Fuel Tank approximately 3/4 full with the fuel mix (the Fuel Tank capacity is approxiately 34 ounces). Then, replace the Tank Cap (93). (See Figure B.) 5. WARNING! NEVER attempt to fill the Fuel Tank when the Engine is running or hot to the touch. TANK CAP (93) FIGURE B To Fill The Gear Case With Gear Oil: 1. Prior to each use of the Impact Wrench, the Gear Case (209D) must be checked and, if necessary, filled with clean #10 gear oil.
OPERATING INSTRUCTIONS 1. WARNING! Always wear safety equipment. When operating the Impact Wrench, always wear ANSI approved safety impact eye goggles, hearing protection, heavy duty work gloves, sturdy work boots, and head protection. 2. Select the desired size socket (not included) and firmly insert the socket onto the 1” Square Socket Drive (188D). (See Figure A.) 3. Place the Impact Wrench on a firm stand or solid floor. 4. Set the Gear Change Lever (233D) to its “NEUTRAL” position.
16. IMPORTANT: To avoid damage to the internal gears, do not change the rotation (forward/reverse) of the tool when accelerating the Engine. Change the rotation only when the Engine is at idle. 17. Squeeze the Throttle Assembly (102) for high speed to loosen or tighten the bolt or nut. (See Figure A.) 18. Once the bolt or nut is loosened or tightened, release the Throttle Assembly (102) to allow the Engine to return to idle speed. (See Figure A.) 19.
5. Air Cleaner (78) maintenance: The Air Cleaner should be checked prior to each use of the Impact Wrench for excessive dirt and debris build-up. Thereafter, the Air Cleaner should be cleaned or replaced every three months or 50 hours of tool use. To do so, remove the cover of the Air Cleaner to expose the Air Cleaner Filter (74). Remove the Air Cleaner Filter and rinse the Filter in warm, soapy water. Squeeze the Filter to remove the soapy water, and allow the Filter to dry.
TROUBLESHOOTING Problem Engine will not start. Possible Solution 1. Make sure Fuel Tank is filled with a 25:1 fuel mixture. 2. Make sure Stop Button is in its “START” position. Engine stops soon after starting. 3. Engine “flooded” with too much fuel mixture. Remove Spark Plug. Set Choke Lever to its “OPEN” position. Pull Recoil Starter several times to exhaust excess fuel from the Engine cylinder. Replace Spark Plug and restart Engine. 4. Choke Lever in wrong position. 1.
PARTS LIST - ENGINE COMPONENTS Part # 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 Description Hex Hole Bolt (5 x 12S) Muffler Protector Hex Hole Button Screw (6 x 65) Washer (6) Muffler Gasket Muffler Set Screw (4 x 8S) Tail Pipe Set Muffler Special Gasket Hex Nut (4) Tail Pipe Screw (4 x 12) Hex Hole Bolt (5 x 12S) Heat Shield Hex Hole Bolt (5 x 25S) Hex Hole Bolt (5 x 20PS) Tank Bracket Fuel Tank Rubber Cushion Fuel Tank
ASSEMBLY DIAGRAM - ENGINE COMPONENTS NOTE: Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts.
PARTS LIST - ENGINE Part # 1A 2A 3A 4A 5A 6A 7A 8A 9A 10A 11A 12A 13A 14A 15A 16A 17A 18A 19A 20A 21A 21.1A 21.2A Description Spark Plug Cap Assy. Spark Plug Rubber Cover Spark Plug (BPMR6A) Cylinder Set Hex Hole Bolt (5 x 18S) Cylinder Gasket Piston Ring Piston Pin Circlip Piston Set Piston Pin Needle Bearing (2 x 8.8) Crank Shaft Small Nut (10) Starter Pawl Starter Pawl Spring Stop Ring (E-5) Starter Pulley Crank Case Gasket Oil Seal (15257) Ball Bearing (6202, 35mm O.D.) Crank Shaft Shim (0.
ASSEMBLY DIAGRAM - ENGINE 2A 1A 3A 4A 5A 17A 14A 15A 6A 10A 16A 7A 7A 9A 13A 8A 40A 12A 11A 40A 23A 18A 19A 22A 21A 24A 20A 22A 19A 20A 37A 41A 42A 29A 25A 38A 32A 39A 43A 33A 31A 26A 27A 28A 36A 34A 35A NOTE: Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts.
PARTS LIST & ASSEMBLY DIAGRAM - RECOIL STARTER Part # 121B 122B 123B 124B 125B 126B 127B Description Recoil Starter Body Starter Rope Reel Recoil Spring Starter Rope Recoil Starter Starter Handle Cap Set Screw Qty. 1 1 1 1 1 1 1 124B 125B 126B 121B 123B 122B 127B NOTE: Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts.
PARTS LIST & ASSEMBLY DIAGRAM - CARBURETOR Part # 140C 141C 142C 143C 144C 145C 146C 147C 148C 149C 150C 151C 152C 153C 154C 155C Description Set Screw Pump Body Pump Gasket Pump Diaphragm Inlet Screen Swivel Stop Ring Throttle Shaft Throttle Spring Throttle Valve Shutter Screw Stop Plate Choke Spring Steel Ball Choke Valve Choke Shaft Qty. 1 1 1 1 1 1 1 1 1 1 3 1 1 1 1 1 Part # 156C 157C 158C 159C 160C 161C 161.
PARTS LIST - IMPACT UNIT & GEARBOX Part # 171D 172D 173D 174D 175D 176D 177D 178D 179D 180D 181D 182D 183D 184D 185D 186D 187D 188D 189D 190D 191D 192D 193D 194D 195D 196D 197D 198D 199D 200D 201D 202D 203D 204D 205D 206D 207D 208D 209D 210D 211D 212D 213D 214D Description Hammer Housing Oil Seal (AG2044E1) Press-In Bushing Washer (2H-M8) Spring Washer (M8) Hex Cap Bolt (M8 x 45) U-Nut (M8) Hex Cap Bolt (M8 x 50) Anti-Vibration Handle Support Handle Retainer End Cap Foot Rest Hex Cap Bolt (M6 x 45) U-Nut (
ASSEMBLY DIAGRAM - IMPACT UNIT & GEARBOX 171D 174D 176D 187D 173D 199D 202D 201D 200D 191D 195D 198D 197D 194D 193D 196D 188D 189D 203D 172D 178D 192D 206D 204D 224D 222D 221D 190D 207D 211D 220D 210D 218D 213D 212D 215D 244D 243D 205D 219D 216D 195D 231D 226D 242D 208D 223D 209D 175D 248D 214D 239D 238D 225D 227D 230D 234D 228D 232D 233D 236D 177D 180D 237D 217D 245D 255D 249D 246D 256D 235D 247D 257D 179D 181D 185D 186D 186D 184D 182D NOTE: Some parts are listed and
Emission Control System Warranty United States Emission Control Defects Warranty Statement The United States Environmental Protection Agency (herein EPA), and Harbor Freight Tools ® (herein HFT) are pleased to explain the emission control system warranty on your 1995 and later Small Off-Road Engine (herein engine). Within the United States, new off-road, spark-ignition engines certified for model year 1997 and later, must meet similar standards set forth by the EPA.
Emission Control System Warranty - continued Harbor Freight Tools Emission Control Defects Warranty Provisions 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.
