” PINLESS AIR IMPACT WRENCH 68128 Set up and Operating Instructions 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© 2010 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.
Save This Manual NOTICE is used to address practices not related to personal injury. 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.
tool. Distractions are able to result in the loss of control of the tool. Personal safety a. b. c. d. e. Stay alert. Watch what you are doing and use common sense when operating the tool. Do not use the tool while tired or under the influence of drugs, alcohol, or medication. A moment of inattention while operating the tool increases the risk of injury to persons. Dress properly. Do not wear loose clothing or jewelry. Contain long hair. Keep hair, clothing, and gloves away from moving parts.
e. Store the tool when it is idle out of reach of children and other untrained persons. A tool is dangerous in the hands of untrained users. f. Maintain the tool with care. A properly maintained tool is easier to control. g. Check for misalignment or binding of moving parts, breakage of parts, and any other condition that affects the tool’s operation. If damaged, have the tool serviced before using. Many accidents are caused by poorly maintained tools.
Symbol Definitions Symbol Property or statement WARNING marking concerning Risk of Eye Injury. Wear ANSI-approved eye protection. WARNING marking concerning Risk of Hearing Loss. Wear hearing protection. WARNING marking concerning Risk of Respiratory Injury. Wear NIOSHapproved dust mask/respirator. 5. Obey the manual for the air compressor used to power this tool. 6. Install an in-line shutoff valve to allow immediate control over the air supply in an emergency, even if a hose is ruptured. 7.
3. Wear suitable gloves to reduce the vibration effects on the user. 4. Use tools with the lowest vibration when there is a choice. 5. Include vibration-free periods each day of work. 6. Grip tool with both hands as lightly as possible (while still keeping safe control of it). Let the tool do the work. 7. To reduce vibration, maintain tool as explained in this manual. If abnormal vibration occurs, stop immediately. Save these instructions.
2. Air Supply To prevent explosion: Use only clean, dry, regulated, compressed air to power this tool. Do not use oxygen, carbon dioxide, combustible gases, or any other bottled gas as a power source for this tool. Male Connector WARNING! To prevent serious injury from accidental operation: Do not install a female quick coupler on the tool. Such a coupler contains an air valve that will allow the air tool to retain pressure and operate accidentally after the air supply is disconnected.
trapped line pressure, and detach air supply hose from the air supply. Note: Residual air pressure should not be present after the tool is disconnected from the air supply. However, it is a good safety measure to attempt to discharge the tool in a safe fashion after disconnecting to ensure that the tool is disconnected and unpowered. Work Piece and Work Area Set Up 1. Designate a work area that is clean and well-lit.
5. For Reverse, turn the Direction Knob to the desired Reverse speed. NOTE: There are three torque settings for the Reverse direction. To loosen, set the Regulator Knob to one of the Reverse settings. 6. Hold the Side Handle firmly and place other hand around Handle (28). Gently squeeze the Trigger (49). 7. Place socket (not included) over desired nut, hold handle firmly and gently squeeze the Trigger. 8.
User-Maintenance Instructions 1. Daily - Air Supply Maintenance: Every day, perform maintenance on the air supply according to the component manufacturers’ instructions. The lubricator’s oil level needs to be maintained and the moisture filter must be regularly drained. Performing routine maintenance on the air supply will allow the tool to operate more safely and will also reduce wear on the tool. 2.
Troubleshooting Problem Possible Causes Decreased output. 1. Not enough air pressure and/ or air flow. 2. Obstructed trigger. Housing heats during use. Severe air leakage. Likely Solutions 1. Check for loose connections and make sure that air supply is providing enough air flow (CFM) at required pressure (PSI) to the tool’s air inlet. Do not exceed 90 PSI maximum air pressure. 2. Clean around trigger to ensure free movement. 3. Lubricate using air tool oil and grease according to directions. 4.
Parts List Part 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Description Hex Screw Gasket Nut Hammer Case Side Handle Bolt Washer Gasket Oil Seal Anvil Bushing Circlip O-Ring Anvil Hammer Bushing Hammer Cam Hammer Cage Gasket Housing Bearing Rear End Plate Vane Rotor Pin Cylinder Q’ty 4 8 4 1 1 4 4 1 1 1 1 1 1 1 1 1 1 1 1 2 2 6 1 2 1 Part 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 Description Pin Gasket Handle Pin Hex Screw O-Ring Valve Bushing Directi
ASSEMBLY DIAGRAM Limited 1 Year 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 one year from the date of purchase (90 days if used by a professional contractor or if used as rental equipment).