Harbor Freight Tools 68152 User's Manual
Contents
1. To reduce the risk of vibration related injury 1 Page 6 Anyone using vibrating tools regularly or for an extended period should first be examined by a doctor and then have regular medical check ups to ensure medical problems are not being caused or worsened from use Pregnant women or people who have impaired blood circulation to the hand past hand injuries nervous system disorders diabetes or Raynaud s Disease should not use this tool If you feel any medical or physical symptoms related to vibration such as tingling numbness and white or blue fingers seek medical advice as soon as possible For technical questions please call 1 800 444 3353 Do not smoke during use Nicotine reduces the blood supply to the hands and fingers increasing the risk of vibration related injury Wear suitable gloves to reduce the vibration effects on the user Use tools with lowest vibration when there is a choice between different processes Include vibration free periods each day of work Grip tool as lightly as possible while still keeping safe control of it Let the tool do the work To reduce vibration maintain the tool as explained in this manual If any abnormal vibration occurs stop use immediately SAVE THESE INSTRUCTIONS SKU 68152 SPECIFICATIONS Average Air Air Inlet 1 4 18 NPT 10 000 OPM Max Rated Speed Oscillations per minute Backing Pad Size UNPACKING When unpack2. KIND TO THE BUYER THAT HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT OR 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 THE BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO PARTS LIST Part Qty 6 O Ring 11 8 O Ring O O li 9 ValveBody J 1 Page 12 For technical questions please call 1 800 444 3353 Part Description Qty Rear Gasket SKU 68152 ASSEMBLY DIAGRAM Record Product s Serial Number Here Note If product has no serial number record month and year of purchase instead Note Some parts are listed and shown for illustration purposes only and are not available individually as replacement parts SKU 68152 For technical questions please call 1 800 444 3353 Page 13 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 c
3. comes with this air tool The outside diameter and the thickness of your accessory must be within the capacity rating of your air tool Incorrectly sized accessories cannot be adequately controlled The arbor size of wheels flanges backing pads or any other accessory must properly fit the spindle of the air Page 4 For technical questions please call 1 800 444 3353 tool Accessories with arbor holes that do not match the mounting hardware of the air tool will run out of balance vibrate excessively and may cause loss of control Do not use a damaged accessory Before each use inspect the accessory for chips and cracks backing pad for cracks tear or excess wear wire brush for loose or cracked wires If air tool or accessory is dropped inspect for damage or install an undamaged accessory After inspecting and installing an accessory position yourself so that rotation plane is away from you and any bystanders and run the air tool at maximum no load speed for one minute Damaged accessories will normally break apart during this test time Wear personal protective equipment Depending on application use face shield safety goggles or safety glasses As appropriate wear dust mask hearing protectors gloves and workshop apron capable of stopping small abrasive or work piece fragments The eye protection must be capable of stopping flying debris generated by various operations The eye protection must be capable
4. 1 800 444 3353 Page 9 To prevent accidents detach air supply safely discharge any residual air pressure in the tool and release the throttle after use Clean external surfaces of the tool with clean dry cloth Then store the tool indoors out of children s reach USER MAINTENANCE INSTRUCTIONS Procedures not specifically A explained in this manual must be performed only by a qualified technician TO PREVENT AWARNING SERIOUS INJURY FROM ACCIDENTAL OPERATION Turn off tool detach air supply safely discharge any residual air pressure in tool and release the throttle before performing any inspection maintenance or cleaning procedures TO PREVENT SERIOUS INJURY FROM TOOL FAILURE Do not use damaged equipment If abnormal noise vibration or air leaks occur have problem corrected before further use TO PREVENT EXPLOSION Lubricate the tool only with specified lubricants Lubricate the air inlet using only pneumatic tool oil Lubricate the internal mechanism using only white lithium grease Other lubricants may damage the mechanism and may be highly flammable causing an explosion Page 10 For technical questions please call 1 800 444 3353 Cleaning Maintenance and Lubrication Note These procedures are in addition to the regular checks and maintenance explained as part of the regular operation of the air operated tool Daily Air Supply Maintenance Every day perform maintenance on th
5. CENTRAL 6 AIR DUAL ACTION SANDER 68152 SET UP AND OPERATING INSTRUCTIONS mat 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 Diagrams within this manual may not be drawn proportionally Due to continuing improvements actual product may differ slightly from the product described herein For technical questions or replacement parts please call 1 800 444 3353 Revised Manual 12f ____ SAVE THIS MANUAL WAA NOTICE is used to address practices not Keep this manual for the safety warnings related to personal injury and precautions assembly operating inspection maintenance and cleaning CAUTION CAUTION without the safety alert symbol is used to address practices not related to personal injury 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 General Power Tool Safety Warnings future reference WARNING Read all safety warnings and instructions Failure to follow the IM PO RTANT S AFETY warnings and inst
6. ctions 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 Use correct sized hose Clean around trigger to ensure free movement Lubricate using air tool oil and grease according to directions Clean air inlet screen of buildup Make sure housing is properly assembled and tight Have qualified technician clean and lubricate mechanism Install in line filter in air supply as stated in Initial Set Up Air Supply Replace all vanes Lubricate using air tool oil and grease according to directions Have qualified technician inspect internal mechanism and replace parts as needed Check for incorrect alignment and uneven gaps If cross threaded disassemble and replace damaged parts before use Tighten housing assembly If housing cannot be tightened properly internal parts may be misaligned Replace damaged components Clean or replace valve assembly Follow all safety precautions whenever diagnosing or servicing the tool Disconnect air supply before service SKU 68152 For technical questions please call 1 800 444 3353 Page 11 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
7. d properly installed Page 8 For technical questions please call 1 800 444 3353 SKU 68152 3 Turn the Spindle Lock so that it engages with the Drive Spindle 51 This will keep the Drive Spindle from freely 1 turning while installing the Backing Pad 52 4 Once the Drive Spindle is locked in place thread the Backing Pad into the 2 Drive Spindle 5 the Backing Pad is securely threaded onto the Drive Spindle turn the Spindle Lock back allowing the Drive Spindle to freely turn 6 Ifthe Spindle Lock is still engaged with the Drive Spindle the Sander will spin rather than randomly orbit 7 Sander ONLY uses 6 diameter PSA Pressure Senstive Adhesive sanding paper not included 8 Firmly attach the sanding paper to the Backing Pad Work Piece and Work Area Set Up 1 Designate a work area that is clean and well lit The work area must not allow access by children or pets to prevent injury and distraction 2 Route the air hose along a safe path to reach the work area without creating a tripping hazard or exposing the air hose to possible damage The air hose must be long enough to reach the work area 8 with enough extra length to allow free movement while working 3 Secure loose workpieces using a vise or clamps not included to prevent movement while working 4 There must not be hazardous objects such as utility lines or foreign objects nearby that w
8. e air supply according to 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 Quarterly every 3 months Tool Disassembly Cleaning and Inspection Have internal mechanism cleaned inspected and lubricated by qualified technician If vanes need replacement all vanes should be replaced as a set After each use wipe down Sander with clean cloth remove all dirt oil and grease from Sander If necessary use a mild detergent Do not use solvents as damage to Tool may occur Do not immerse Tool in any liquids SKU 68152 Decreased output Housing heats during use Severe air leakage Slight air leakage is normal especially on older tools Troubleshooting Possible Causes Likely Solutions 1 Not enough air pressure and or air flow Undersized or extra long hose Obstructed trigger 4 Incorrect lubrication or not enough lubrication Blocked air inlet screen if equipped Air leaking from loose housing Mechanism contaminated Vane wear or damage Incorrect lubrication or not enough lubrication Worn parts Cross threaded housing components Loose housing Damaged valve or housing Dirty worn or damaged valve Check for loose conne
9. esult in minor or moderate b Use safety equipment Always wear injury eye protection Safety equipment such as dust mask non skid safety shoes hard hat or hearing protection used Page 2 For technical questions please call 1 800 444 3353 SKU 68152 for appropriate conditions will reduce personal injuries c Prevent unintentional starting Ensure the switch is in the off position before connecting to air source picking up or carrying the tool Carrying the air tool with your finger on the switch or energizing power tools that have the switch on invites accidents d Remove any adjusting key or wrench before turning the air tool on A wrench or a key left attached to rotating part of the air tool may result in personal injury e Do not overreach Keep proper footing and balance at all times This enables better control of the air tool in unexpected situations Dress properly Do not wear loose clothing or jewelry Keep your hair clothing and gloves away from moving parts Loose clothes jewelry or long hair can be caught in moving parts g If devices are provided for the connection of dust extraction and collection facilities ensure these are connected and properly used Use of these devices can reduce dust related hazards h Only use safety equipment that has been approved by an appropriate standards agency Unapproved safety equipment may not provide adequate protection Air tool use and care a Do no
10. ill present a hazard while working General Operating Instructions If an automatic oiler is not used add a few drops of Pneumatic Tool Oil to airline connection before use Add a few drops more after each hour of continual use Always check the Sanding Pad for possible wear Do not use a worn torn or defective pad Set the compressor to 90 PSI Do not exceed 90 PSI Connect the Air Line to the Tool as explained in the Air Supply section Use the Air Regulator 16 to fine tune the Sander s air pressure Grip the Handle 53 and depress the Trigger 13 Allow the motor to reach its full speed before sanding NOTE If the Sander creates swirls when it contacts the workpiece disconnect the air supply and verify that the Spindle Lock is not engaging with the Drive Spindle To begin sanding apply the Sander to the work surface Maintain that angle until finished sanding WARNING Do not force the Pad or apply to much pressure a sign of this is the Pad slowing down If tool requires more force to accomplish the task verify that tool receives sufficient unobstructed airflow CFM and increase air pressure PSI CAUTION TO PREVENT TOOL AND ACCESSORY FAILURE RESULTING IN INJURY Do not exceed the tool s maximum air pressure rating If the tool still does not have sufficient force at maximum pressure and sufficient airflow then a larger tool may be required SKU 68152 For technical questions please call
11. ing make sure that the item is intact and undamaged If any parts are missing or broken please call Harbor Freight Tools at 1 800 444 3353 as soon as possible INITIAL TOOL SET UP Read the ENTIRE IMPORTANT A SAFETY INFORMATION section at the beginning of this manual including all text under subheadings therein before set up 1 or use of this product Note For additional information regarding the parts listed in the following pages refer to the Assembly Diagram near the end of this manual Unpacking When unpacking make sure the item is intact and undamaged If parts are missing or broken call Harbor Freight Tools at the number shown throughout the manual as soon as possible e This air tool may be shipped with a protective plug covering the air inlet Remove this plug before set up SKU 68152 AWARNING For technical questions please call 1 800 444 3353 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 Male Connector Connector 2 2 7 Quick Coupler Nair Hose on Reel Coupler Regulator with Pressure Gauge Recommended Air Line Components Incorporate a filter regulator in line oiler shut off valve and quick coupler with pressure gauge and filter for best service as shown in the diagram ab
12. it cycles off 7 Adjust air compressor s output regulator so that air output is enough to properly power the tool but the output will not exceed the tool s maximum air pressure at any time Adjust the pressure gradually while checking the air output gauge to set the right pressure range 8 Inspect air connections for leaks Repair any leaks found 9 If tool will not be used at this time turn off and detach air supply safely discharge any residual air pressure and release throttle to prevent accidental operation 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 OPERATING INSTRUCTIONS Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual including all text under subheadings therein before set up or use of this product TO PREVENT AWARNING serious INJURY FROM ACCIDENTAL OPERATION Release the Trigger and disconnect the air supply before installing accessories Installing the 6 Sanding Pad The Backing Pad MUST be e rated to at least 10 000 OPM e no larger than 6 in diameter with a 3 8 threaded arbor e dry and clean e proven undamaged by inspection TO PREVENT AWARNING SERIOUS INJURY Do not operate this tool without the Sanding Pa
13. n Oaks Blvd PO Box 6009 Camarillo CA 93011 800 444 3353 Page 14 For technical questions please call 1 800 444 3353 SKU 68152
14. nd other construction activities contains chemicals known to the State of California to cause cancer birth defects or other reproductive harm Some examples of these chemicals are e Lead from lead based paints e Crystalline silica from bricks and cement or other masonry products Arsenic and chromium from chemically treated lumber Your risk from these exposures varies depending on how often you do this type of work To reduce your exposure to these chemicals work in a well ventilated area and work with approved safety For technical questions please call 1 800 444 3353 equipment such as those dust masks that are specially designed to filter out microscopic particles California Health amp Safety Code 25249 5 et seq 17 The warnings precautions and instructions discussed in instruction manual cannot cover all possible conditions and situations that may occur It must be understood by operator that common sense and caution are factors which cannot be built into this product but must be supplied by the operator Kickback and Related Warnings Kickback is a sudden reaction to a pinched or snagged rotating wheel backing pad brush or any other accessory Pinching or snagging causes rapid stalling of the rotating accessory which in turn causes the uncontrolled power tool to be forced in the direction opposite of the accessory s rotation at the point of the binding Kickback is the result of air tool misu
15. ng abnormal operation breakage of the tool or serious injury to persons Use only clean dry regulated compressed air at the rated pressure or within the rated pressure range as marked on the tool Always verify prior to using the tool that the air source has been adjusted to the rated air pressure or within the rated air pressure range Page 3 Never use oxygen carbon dioxide combustible gases or any bottled gas as an air source for the tool Such gases are capable of explosion and serious injury to persons Safety Warnings Common for Sanding Operations This air tool is intended to function as a sander Read all safety warnings instructions illustrations and specifications provided with this air tool Failure to follow all instructions listed below may result in fire and or serious injury Operations such as grinding wire brushing polishing or cutting off are not recommended to be performed with this air tool Operations for which the air tool was not designed may create a hazard and cause personal injury Do not use accessories which are not specifically designed and recommended by the tool manufacturer Just because the accessory can be attached to your power tool it does not assure safe operation The rated speed of the accessory must be at least equal to the maximum speed marked on the power tool Accessories running faster than their RATED SPEED can break and fly apart Use only the 6 Sanding Pad that
16. of stopping flying debris generated by various operations The dust mask or respirator must be capable of filtering out particles generated by your operation Prolonged exposure to high intensity noise may cause hearing loss Keep bystanders a safe distance away from work area Anyone entering the work area must wear personal protective equipment Fragments of work piece or of a broken accessory SKU 68152 10 11 12 13 14 15 16 SKU 68152 may fly away and cause injury beyond immediate area of operation Never lay the air tool down until the accessory has come to a complete stop The spinning accessory may grab the surface and pull the air tool out of your control Do not run air tool while carrying it at your side Accidental contact with spinning accessory could snag your clothing pulling accessory into body Maintain labels and nameplates on tool These carry important safety information If unreadable or missing contact Harbor Freight Tools for a replacement Avoid unintentional starting Prepare to begin work before turning on the tool Use clamps not included or other practical ways to secure and support the workpiece to a stable platform Holding the work by hand or against your body is unstable and may lead to loss of control and personal injury This product is not a toy Keep it out of reach of children WARNING Some dust created by power sanding sawing grinding drilling a
17. ontractor or if used as rental equipment This warranty does not apply to damage due directly or indirectly to misuse abuse negligence or accidents repairs or alterations outside our facilities normal wear and tear or to lack of maintenance We shall in no event be liable for death injuries to persons or property or for incidental contingent special or consequential damages arising from the use of our product Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitation of exclusion may not apply to you THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS To take advantage of this warranty the product or part must be returned to us with transportation charges prepaid Proof of purchase date and an explanation of the complaint must accompany the merchandise If our inspection verifies the defect we will either repair or replace the product at our election or we may elect to refund the purchase price if we cannot readily and quickly provide you with a replacement We will return repaired products at our expense but if we determine there is no defect or that the defect resulted from 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 3491 Missio
18. ove An in line shutoff valve is an important safety device to control air flow because it controls air supply in the event of an emergency or even if the air hose is ruptured Note If an automatic oiler system is not used add a few drops of Pneumatic Tool Oil to the airline connection before operation Add a few more drops after each hour of continual use Remove Air Inlet Plug 54 from Air Inlet 20 of the tool Attach an air hose to the compressor s air outlet Connect the air hose to the Air Inlet 1 4 18 NPT Page 7 Male Quick Connector not included is required Then connect the coupler of an hose not included onto the Quick Connector AWARNING TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION Do not install a female quick coupler on the tool Sucha coupler contains an air valve that will allow the air tool to retain pressure and operate accidentally after the air supply is disconnected Note Air flow and therefore tool performance can be hindered by undersized air supply components 3 The air hose must be long enough to reach work area with enough extra length to allow free movement while working 4 sure tool s throttle is the off position refer to Operation section for description of controls 5 Close the in line safety valve between the compressor and the tool 6 Turn on air compressor according to manufacturer s directions and allow it to build up pressure until
19. ructions may result in electric shock fire and or serious INFORMATION injury Save all warnings and instructions In this manual on the labeling and for future reference all other information provided with this product 1 Work area safety a Keep work area clean and well lit This is the safety alert ee Cluttered or dark areas invite accidents symbol It is used to alert you to potential personal b Do not operate air tools in explosive injury hazards Obey all atmospheres such as in the presence safety messages that follow of flammable liquids gases or dust this symbol to avoid possible Air tools create sparks which may ignite injury or death the dust or fumes c Keep children and bystanders DANGER indicates a away while operating a power tool hazardous situation Distractions can cause you to lose which if not avoided will result control in death or serious injury AWARNING WARNING indicates a hazardous situation which if not avoided could result in death or serious injury 2 Personal safety ie Stay alert watch what you are doing and use common sense when operating this air tool Do not use air tool while you are tired or under CAUTION used with the influence of drugs alcohol or ACAUTION the safety alert medication A moment of inattention symbol indicates a hazardous while operating air tools may result in situation which if not avoided serious personal injury could r
20. se and or incorrect operating procedures or conditions and can be avoided by taking proper precautions as given below 1 Maintain a steady grip on air tool and position your body and arm to allow you to resist kickback forces Always use auxiliary handle if provided for maximum control over kickback or torque reaction during start up The operator can control torque reactions or kickback forces if proper precautions are taken 2 Never place your hand near the rotating accessory Accessory may kickback over your hand 3 Do not position your body in the area where air tool will move if kickback occurs Kickback will propel the tool Page 5 in direction opposite to the wheel s movement at the point of snagging Use special care when working corners sharp edges etc Avoid bouncing and snagging the accessory Corners sharp edges or bouncing have a tendency to snag the rotating accessory and cause loss of control or kickback Safety Warnings Specific for Sanding Operations Do not use oversized sanding disc paper Follow manufacturer s recommendations when selecting sanding paper Larger sanding paper extending beyond the sanding pad presents a laceration hazard and may cause snagging tearing of the disc or kickback Vibration Safety This tool vibrates during use Repeated or long term exposure to vibration may cause temporary or permanent physical injury particularly to the hands arms and shoulders
21. t force the air tool Use the correct air tool for your application The correct air tool will do the job better and safer at the rate for which it was designed b Do not use the air tool if the switch does not turn it on and off Any air tool SKU 68152 For technical questions please call 1 800 444 3353 that cannot be controlled with the switch is dangerous and must be repaired c Store idle air tools out of the reach of children and do not allow persons unfamiliar with the air tool or these instructions to operate the air tool Air tools are dangerous in the hands of untrained users d Maintain air tools Check for misalignment or binding of moving parts breakage of parts and any other condition that may affect the air tool s operation If damaged have the air tool repaired before use Many accidents are caused by poorly maintained air tools Use the air tool accessories and tool bits etc in accordance with these instructions taking into account the working conditions and the work to be performed Use of the air tool for operations different from those intended could result in a hazardous situation Service Have your air tool serviced by qualified repair person using only identical replacement parts This will ensure that the safety of the air tool is maintained Air source Never connect to an air source that is capable of exceeding 200 psi Over pressurizing the tool may cause bursti
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