Harbor Freight Tools 32871 User's Manual
Contents
1. reparations cule our aces or 0 ac o N A Cecil or consequential damages arising rom the usk of our product Some stalas do not alow The cusin ISL q or limitation of incidental or consequential damages so the above limitation of exclusion may not apply to Y a T es ene OF ED RS Tepaled produis af CUP exponen it I ae Gesamte Mare E AG detect or he the delan tesulted Pom M gt causes not within the scope of our warranty then you must bear the cost of returning the product This warranty gives you specific legal rights and you may also have other rights which vary from state to state Y 3491 Mission Oaks Blvd PO Box 6009 Camarillo CA 93011 800 444 3353 NSS SKU 32871 For technical questions please call 1 800 444 3353 Page 10 REV 04 06 ASSEMBLY DIAGRAM SKU 32871 For technical questions please call 1 800 444 3353 Page 112. CENTRAL PNEUMATIC A OS a 3 4 AWYDOJITYARIMPACT VWRENH ioi 32871 ASSEMBLY and OPRRATINGINSTRUCTIONS Distributed Exclusively by 3491 Mission Oaks Blvd Camarillo CA 93011 Copyright 1997 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 and replacement parts please call 1 800 444 3353 SPECIFICATIONS Free Speed 4500 RPM Air Inlet w NPT PSI 90 CFM 7 Torque 500 maximum ft lbs SAVE THIS MANUAL You will need the manual for the safety warnings and cautions assembly instructions operating procedures maintenance procedures trouble shooting parts list and diagram Keep your invoice with this manual Write the invoice number on the inside of the front cover Keep both this manual and your invoice in a safe dry place for future reference SAFETY WARNING amp CAUTIONS WARNING When using pneumatic equipment basic safety precautions should always be followed to reduce the risk of personal injury and hazards due to over pressurization READ ALL INSTRUCTIONS BEFORE USING THIS TOOL 1 2 KEEP WORK AREA CLEAN Cluttered areas invite injuries OBSERVE WORK AREA CONDITIONS Do not use tools in damp wet or poorly lit locations Don t expose to rain Keep work area well lit Do not use electrically powered air compre
3. ESSORIES When servicing use only identical replacement parts Use of any other parts will void the warranty Only use accessories intended for use with this tool Approved accessories are available from Harbor Freight Tools DO NOT OPERATE TOOL IF UNDER THE INFLUENCE OF ALCOHOL OR DRUGS Read warning labels on prescriptions to determine if your judgment or reflexes are impaired while taking drugs If there is any doubt do not operate the tool DRAIN COMPRESSOR EVERY DAY Do not allow moisture to build up inside the compressor Do not allow compressor to sit pressurized for longer than one hour MAKE SURE ALL EQUIPMENT IS RATED TO THE APPROPRIATE CAPACITY Make sure that regulator is set at least 10 PSI lower than the lowest rated piece of equipment you are using SKU 32871 For technical questions please call 1 800 444 3353 Page 3 UNPACKING Your Impact Wrench comes completely assembled If any parts are missing or broken please call Harbor Freight Tools at the number on the cover of this manual GENERAL This Impact Wrench develops a maximum of 535 ft lbs of torque The amount of torque can be increased or decreased using the AIR REGULATOR 46 When the Air Regulator is completely screwed in it is at it s lowest setting Air pressure increases as you loosen the Air Regulator SKU 32871 For technical questions please call 1 800 444 3353 Page 4 OPERATION Setup Frequent but not excessive lubrication is required for be
4. d separately before you can connect the Impact Wrench to your air compressor You may also wish to purchase an Air Coupler as this allows quick coupling action when using multiple tools with one compressor Step 3 Determine the socket size necessary for the job you need to do Attach the appropriate 3 4 drive socket to the Impact Wrench as shown in Figure 2 3 4 Drive Socket Air Coupler Figure 2 Attaching the Air Coupler and Socket Step 4 Connect the Impact Wrench to the air compressor s hose If leaking is detected disconnect the air hose and repair before use SKU 32871 For technical questions please call 1 800 444 3353 Page 6 Step 5 Select the power setting for Loosening by adjusting the AIR REGULATOR 46 located on the bottom of the Impact Wrench as shown CAUTION in Figure 3 When the Air Regulator is Use the Setting Appropriate for the completely screwed in it is at it s lowest setting Job Do Not Set the Power Setting Air pressure increases as you loosen Higher Than Needed Damage to the Air Regulator Parts Could Result Air Regulator 46 N Figure 3 Adjusting the Reverse Power Setting Step 6 Select the direction of the Wrench forward or reverse by pushing the REVERSE VALVE 48 located on the handle of the Impact Wrench as shown in Figure 4 Valve in Forward Position Reverse Valve Push in to Reverse 48 Figure 4 Selecting Reverse Direction SKU 32871 For t
5. echnical questions please call 1 800 444 3353 Page 7 Step 7 Press the TRIGGER 88 to test the Impact Wrench The Impact Wrench should spin freely as shown if Figure 5 Trigger 38 Figure 5 Pressing Trigger Loosening Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Verify that the power level is correct for your needs and that the REVERSE VALVE 48 has been shifted pressed completely to the right If not refer to Steps 5 through 9 under Use before proceeding Place your work in as clear a location as possible Make sure the air hose will reach as far as needed without stressing any connections With the correct socket attached to the Impact Wrench slide the socket over the nut or bolt Grip the Impact Wrench with both hands especially with higher power settings Make sure you are in a stable position and spread your feet shoulder width apart Press the TRIGGER 38 to loosen the bolt WARNING If the bolt will not loosen and you are onalow The Impact Wrench May Kick Back power setting for Loosening try increasing the power setting and attempt again During Operation If This Happens Release the TRIGGER IMMEDIATELY If the bolt will not loosen with the Impact Wrench on a higher power setting do not repeat attempts to loosen You may snap the bolt or strip the threads of the stud or nut Try another method to loosen the bolt or nut SKU 32871 For technical questio
6. her safe place SKU 32871 For technical questions please call 1 800 444 3353 Page 9 PARTS LIST Item Description Parts Item Description Parts 1 Housing HY161 01 25 Spring Washer HY 160 36 2 Set Screw HY 160 45 26 Cylinder Screw HY161 19 3 Anvil Bushing HY161 02 27 Spring Washer HY161 25 4 Washer HY161 03 28 Cap Screw HY 161 26 5 Anvil Collar HY161 04 29 Rubber HY161 27 6 O Ring HY161 05 30 Protector Rubber HY161 44 7 Anvil HY161 06 31 Oil Seal HY161 43 8 Hammer Cage HY 161 07 32 Tapping Screw HY161 16 9 Bearing HY161 11 33 Exhaust Deflector HY161 32 10 Oil Seal HY161 12 34 Pin HY160 32 11 O Ring HY161 13 35 Spring HY160 31 12 Hammer Pin HY161 08 36 Set Screw HY160 16 13 Hammer Dog HY 161 09 37 Spring Pin HY 160 30 14 Drive Cam HY161 10 38 Trigger HY161 33 15 Front End Plate HY 161 14 39 Spring Pin HY161 42 16 Rotor Blade HY161 15 40 Bushing HY 160 43 17 Rotor HY161 16 41 Valve Stem HY160 06 18 Cylinder HY161 17 42 Air Control Bushing HY161 46 19 Rear End Plate HY161 18 43 Spring HY160 09 20 Oil Seal HY161 12 44 Hose Adapter HY160 10 21 Bearing NY161 20 45 O Ring HY161 36 22 Rear Gasket NY161 21 46 Air Regulator HY161 38 23 Rear Cover HY161 22 47 Air Pipe HY161 01 1 24 O Ring HY161 24 48 Reverse Valve HY161 35 WARRANTY KY CENTRAL Z PNEUMATIC LIMITED 1 YEAR K N WARRANTY A c ard wanane to the original purchaser Inat tnis producti tee tem deiecte fv melee and workmanship fr Z RY inde to misuse abuse negigenoe o accidenis
7. ns please call 1 800 444 3353 Page 8 Tightening Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Step 8 Verify that the power level is correct for your needs and that the REVERSE VALVE 48 has been shifted pressed completely to the left If not refer to Steps 5 through 9 under Use before proceeding Place your work in as Clear a location as possible Make sure the air hose will reach as far as needed without stressing any connections Thread the nut or bolt on as far as possible by hand This is to prevent cross threading If you have torque specs for the nut or bolt you are working on refer to them If alow torque setting is given it is recommended that you use a socket wrench or a manual torque wrench to tighten as the Impact Wrench may provide too much torque even in the lowest power setting Place the socket onto the nut or bolt Grip the Impact Wrench with both hands especially with higher power settings Make sure you are in a stable position and spread your feet shoulder width apart Press the TRIGGER to tighten the bolt When the bolt is tight release the TRIGGER DO NOT OVER TIGHTEN MAINTENANCE There are no user serviceable parts in your Impact Wrench Attempts to repair or make adjustments on your tool are prohibited and will VOID your warranty Refer to OPERATIONS Setup for information on maintaining your tool Wipe down your tool after every use and store it in a drawer or ot
8. onnect it from the receptacle Do not carry tools by the cord DO NOT OVERREACH Keep proper footing and balance at all times Do not reach over or across running machines MAINTAIN TOOLS WITH CARE Keep tools sharp and clean for better and safer performance Follow instructions for lubricating and changing accessories Inspect compressor s cord periodically and if damaged have them repaired by an authorized technician Inspect all hoses for leaks prior to use The handles must be kept clean dry and free from oil and grease at all times REMOVE ADJUSTING KEYS AND WRENCHES Make it a habit to check that keys and adjusting wrenches are removed from the tool or machine work surface before plugging it in AVOID UNINTENTIONAL STARTING Do not carry any tool with your finger on the trigger whether it is connected to the compressor or not STAY ALERT Watch what you are doing use common sense Do not operate any tool when you are tired CHECK DAMAGED PARTS Before using any tool any part that appears damaged should be carefully checked to determine that it will operate properly and perform its intended function Check for alignment and binding of moving parts any broken parts or mounting fixtures and any other condition that may affect proper operation Any part that is damaged should be properly repaired or replaced by a qualified technician Do not use the tool if any switch does not turn on and off properly REPLACEMENT PARTS AND ACC
9. ssors in the presence of flammable gases or liquids KEEP CHILDREN AWAY Children must never be allowed in the work area Do not let them handle machines tools or hoses STORE IDLE EQUIPMENT When not in use tools must be locked up in a dry location to inhibit rust Always lock up tools and keep out of reach of children DO NOT FORCE THE TOOL It will do the job better and more safely at the rate for which it was intended Do not use inappropriate attachments in an attempt to exceed the tool s capacities USE THE RIGHT TOOL FOR THE JOB Do not attempt to force a small tool or attachment to do the work of a larger industrial tool Do not use a tool for a purpose for which it was not intended DRESS PROPERLY Do not wear loose clothing or jewelry as they can be caught in moving parts Non skid footwear is recommended Wear restrictive hair covering to contain long hair USE EYE AND EAR PROTECTION Always wear ANSI approved chemical splash goggles when working with chemicals Always wear ANSI approved impact safety goggles at other times SKU 32871 For technical questions please call 1 800 444 3353 Page 2 REV 04 06 10 11 12 13 14 15 16 17 18 12 Wear a full face shield if you are producing metal filings or wood chips Wear an ANSI approved dust mask or respirator when working around metal wood and chemical dusts and mists DO NOT ABUSE THE POWER CORD Do not yank compressor s cord to disc
10. st performance Oil added through the airline connection will lubricate internal parts An automatic airline oiler is recommended but oil may be added manually before every operation or after about 1 hour of continuous use Only 4 to 5 drops of oil at a time are necessary Too much oil will collect inside the tool and be blown out during the exhaust cycle ONLY USE PNEUMATIC TOOL OIL Do not use detergent oil or additives as these lubricants will cause accelerated wear to the seals in the tool Dirt and water in the air supply are major causes of pneumatic tool wear Use a filter oiler for better performance and longer life The filter must have adequate flow capacity for the specific application Consult the manufacturer s instructions for proper maintenance of your filter The connector on the tool must not hold pressure when the air supply is disconnected If the wrong fitting is used the tool can remain charged with air after being disconnected and still be able to drive a fastener See Figure 1 for the recommended accessories and connection order Quick Quick Quick Qiier Filter connector coupler connector e compressor Quick coupler Reguiator Figure 1 Airline Oiler SKU 32871 For technical questions please call 1 800 444 3353 Page 5 Use Step 1 Set the compressor s pressure regulator to a maximum of 90 PSI 90 PSI is satisfactory without harming this tool Step 2 You will need to purchase a union fitting sol
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