WP2049 & WP2050 SERIES IMPACTS
Contents
1. the anvil housing with its lips toward the rear ofthe housing lip not visible after assembly All impact mechanism and motor parts should receive a thin coating of 30W oil before reassembly Insert the cam timing pin into the recess located on the small O D of the cam and then install the cam and pin into the rear of the hammer Install the cam roller shaft in the cam shaft Put the cam roller on the roller shaft and slip the butt plate insulator and shock absorber onto the rear of the cam shaft Hold the cam shaft vertically on the work bench with the shock absorber down and tap the end ofthe cam shaft with a soft mallet to seat the cam shaft in the shock absorber Slip the cam shaft and related components through the cam and hammer assembly Install the hammer spring spring clip and anvil pin onto the front ofthe cam shaft and hammer assembly Rotate the spring clip to accept the anvil pin and then install the anvil on top of the assembly be sure the slot in the anvil lines up with the anvil pin and drive the anvil down until the spring clip engages the recess in the anvil During the assembly of the motor unit the rear of the rotor can be identified by the O ring No 869715 and the O ring groove located inthe I D of the rotor bore The cylinder port O rings can be coated with grease to retain them during assembly of the motor unit During reassembly of the complete tool 3 8 fluid ounces 12ml of 30W oil should2. to be re moved from the front of the motor housing The motor unit may now be slipped out the rear of the motor housing Clamp the hammer No 869325 horizontally in a soft jawed vise and drive the anvil away from the hammer using a soft hammer This will allow the anvil pin No 867437 spring clip No 869336 and the hammer spring No 869345 to be removed from the front of the cam shaft No 869322 This will allow the cam shaft and related components to be removed from the rear of the hammer Slip the two 2 bearing plates off the rotor and remove the cylinder and six 6 rotor blades Unscrewing the air inlet bushing will allow the throttle valve to be removed for inspection of the throttle valve seal Remove the air inlet screen for cleaning and inspection REASSEMBLY All parts should be cleaned in a solvent and inspected for wear or damage lf rotor blades measure less than 5 16 7 9mm on either end they should be replaced Rotor bearings should be replaced ifthey show excessive loose ness Rotor shaft seals and the anvil seal should be replaced if they are badly worn or no longer flexible Clean the bearing plates and anvil housing with a solvent and coat the seal bores with PERMATEX Aviation Form a gasket 3H Allow to air dry at least four 4 minutes before pressinginthe seals Press the rotor shaft seals into the bearing plates with their lips facing outward visible after assembly Press the anvil seal into
3. be placed in the anvil housing Install the anvil housing on the tool with the straight flange down i e toward the trigger Before installing the rear cap 1 4 fluid ounce 8ml of 30W oil should be added to the rear cavity of the rotor All tools should be tested after repair or replacement or parts to ensure that they are functioning properly 864710 864711 869353 869329 869330 869331 869322 869326 e x R 867437 M M M M M 20 869336 PARTS LIST IMPACT MECHANISM PART NO NAME OF PART PARTNO NAME OF PART 203997 Retainer Ring Anvil incl 203998 869335 Hanger Extra Equipment 203998 Ring Retainer Kit incl O ring amp Ring 869336 Spring Clip 842455 Lock Washer 869338 Cam Timing Pin 843924 Socket Head Cap Screw 869339 Cam Roller Shaft 844077 5 16 Steel Ball Q Model 869340 Anvil Housing Seal 861736 Anvil Housing incl 869340 869344 Anvil Bushing 869344 869404 869345 Hammer Spring 864710 Lock Pin Retainer Sleeve 869346 3 4 Sq Dr Anvil 864711 Socket Lock Pin 869347 5 8 Sq Dr Anvil incl 864710 864712 Lock Pin Spring 864711 864712 865019 Cam Roller 869351 Q Model Anvil 5 8 internal hex 867437 Anvil Timing Pin 869353 Release Collar Q Model 869322 Cam Shaft 869354 Release Collar Spring Q Model 869325 Hammer 869355 Release Collar Retainer Q Model 869326 Cam 869356 Release Collar Washer Q Model 869329 Shock Absorber 869404 Retainer Ring 869330 Insu
4. ection devices may be necessary For additional informa tion on hearing protection refer to Federal OSHA Regulations 29 CFR Section 1910 95 Occupational Noise Exposure and American National Standards Institute ANSI S12 6 Hearing Protectors Gloves and other protective clothing should be worn as required unless they create a greater hazard Do not wear loose fitting clothing or clothing that may restrict movement become entangled or in any way interfere with the safe operation of the impact Cleco impact wrenches are designed to operate on 90 psig 6 2 bar maximum air pressure If the tool is properly sized and applied higher air pressure is unnecessary Excessive air pressure increases the loads and stresses on the tool parts sockets and fasteners and may result in breakage Installation of a filter regulator lubricator in the air supply line ahead of the tool is highly recommended Before the tool is connected to the air supply check the throttle for proper operation i e throttle moves freely and returns to closed position Being careful not endanger adjacent person nel clear air hose of accumulated dust and moisture Before removing a tool from service or changing sockets make sure the air line is shut off and drained of air This will prevent the tool from operating if the throttle is accidently engaged Never use the air hose for supporting lifting or lowering the tool Use a safety line or cable on the to
5. ge Operation amp Service Manual GOOPER Tools 823033 2 01 WP2049 8 WP2050 SERIES IMPACTS Impact Wrench Handle P Pistol Grip Output Drive Tool Size 5 5 8 2049 6 3 4 2050 Q Quick Change R Ring Retainer NORTH AMERICA EUROPE CooperTools Cooper Power Tools GmbH amp Co P O Box 1410 Postfach 30 Lexington SC 29071 D 73461 Westhausen SafetyRecommendations For your safety and the safety of others read and understand the safety recommendations before operating an impact wrench Always wear protective equipment and clothing WARNING Impact resistant eye protection must be worn while operating or working near this tool For additional information on eye protection refer to Federal OSHA Regulations 29 CFR Section 1910 133 Eye and Face Protection and ANSI Z87 1 Occupational and Educational Eye and Face Protection This standard is available from the American National Standards Institute Inc 11 West 42nd Street New York NY 10036 A CAUTION Personal hearing protection is recommended when operating or working near this tool Hearing protection is recommended in high noise areas above 85 dBA Close proximity of additional tools reflective surfaces process noises and resonant structures can sub stantially contribute to the sound level experienced by the operator Proper hearing conservation measures including annual audiograms and training in the use and fit of hearing prot
6. lator 869331 Butt Plate The Q Model anvil may be purchased as a complete subassembly using part no 861858 863627 WP 2049 889323 WP 2049 869348 869321 e m id 882311 869341 863627 PARTS LIST MOTOR UNIT PART NO NAME OF PART QTY PARTNO NAME OF PART 832117 Alignment Pin 869341 Rotor Shaft Seal 843434 30W Oil Fill Plug 869343 Rotor Blade 863399 O Ring 7 16 x 9 16 869348 Cylinder WP 2050 863627 Rotor Bearing 869352 Rear Cap 869321 Rotor incl 869715 869715 O Ring 15 16 x 1 1 16 869323 Bearing Plate WP 2049 Requires 869741 Rear Bearing Plate WP 2049 one Only 869742 Cylinder WP 2049 869324 Back Cap Gasket 882311 O Ring 1 15 16 x 2 1 8 869332 Motor Clamp Seal A A A A 4 CE NO 869320 uf 869328 Pa 813449 869342 e Lutt 869712 844892 843571 AAA 869350 NA y 863072 869349 Tg 619016 833471 PARTS LIST MOTOR HOUSING PART NO NAME OF PART PART NO NAME OF PART QTY 869328 Reversing Valve 869337 Muffler 869342 Trigger incl 869712 869349 Air Screen Sleeve 869350 Throttle Valve 869712 O ring 5 64 X 13 64 412775 Screen 619016 Retianer Ring 813449 O ring 5 16 X 1 2 833471 Inlet Bushing 843571 Oiler Valve 844892 10W Oil Fill Plug 863072 Throttle Valve Spring 869320 Motor Housing incl 843571 A A A Ll dl ok ld yy The complete motor housing can be purchased as a complete subasse
7. ld be performed in such a manner that the wrists are maintained in a neutral position which is not flexed hyperextended or turned side to side Stressful postures should be avoided Select a tool propriate for the job and work location ap The following suggestions will help reduce or moderate the effects of repetitive work motions and or extended vibration exposure e Use a minimum hand grip force consistent with proper control and safe operation Keep body and hands warm and dry Avoid anything that inhibits blood circulation Smoking Tobacco Cold Temperatures Certain Drugs Keep wrists as straight as possible e Avoid highly repetitive movements of hands and wrists and continuous vibration exposure Work gloves with vibration reducing liners and wrist supports are available from some manufacturers of industrial work gloves These gloves are designed to reduce and moderate the effects of extended vibration exposure and repetitive wrist trauma Since they vary widely in design material vibration reduction and wrist support qualities it is recommended that the glove manufacturer be consulted for gloves designed for your specific application WARNING Proper fit of gloves is important Improperly fitted gloves may restrict blood flow to the fingers and can substantially reduce grip strength Also note that various tool wraps are available from a number of different manufacturers Like gloves these wraps are al
8. mbly using part no 861737 COOPER Tools CooperTools 670 Industrial Drive Lexington SC 29072 Phone 803 359 1200 Fax 803 359 2013 www cooperindustries com
9. minimum hose size is 3 8 10mm LUBRICATION An automatic in line filter lubricator is recommended as it increases tool life and keeps the tool in sustained operation The in line lubricator should be regularly checked and filled with a good grade of 10W machine oil Proper adjustment of the in line lubricator is performed by placing a sheet of paper next to the exhaust ports and holding the throttle open approximately 30 seconds The lubricator is properly set when a light stain of oil collects on the paper Excessive amounts of oil should be avoided In the event an in line lubricator is not used the oil reservoir in the handle should be utilized The oil reservoir marked 30W Oil should not require attention until the tool is torn down for inspection purposes However if the tool is on the application for an unduly long period of time the plug should be removed and the reservoir checked for the presence of oil If oil is required approxi mately 1 2 fluid ounce 16ml of 30W oil should be added to the oil reservoir STORAGE In the event that it becomes necessary to store the tool for an extended period of time overnight weekend etc it should receive a generous amount of lubrication at that time and again when returned to service The tool should be stored in a clean and dry environment SERVICE INSTRUCTIONS DISASSEMBLY Loosen and remove the four 4 housing bolts This will allow the anvil housing and impact mechanism
10. ol when working in elevated areas Tools with exposed throttles should not be used where ob structions can hold the throttle in the on position An impact wrench operating in reverse will move backwards as a nutis removed and can trap an operator s hand making it difficult to release an outside trigger Inside trigger or pistol grip tools are advised for close guarter operation Only use sockets designed for use with impact wrenches Never use a hand tool socket on an impact wrench Hand tool sockets can break resulting in a hazard from flying pieces Inspect sockets retainers and drives regularly for wear or damage and replace as necessary Worn sockets reduce power cause drive wear and increase the chance for breakage and should not be used A WARNING Repetitive work motions and or vibration may cause injury to hands and arms Use minimum hand grip force consistent with proper control and safe operation Keep body and hands warm and dry Avoid anything that inhibits blood circulation Avoid continuous vibration exposure Keep wrists straight Avoid repeated bending of wrists and hands Some individuals may be susceptible to disorders of the hands and arms when performing tasks consisting of highly repetitive motions and or exposure to extended vibration Cumulative trauma disorders such as carpal tunnel syndrome and ten donitis may be caused or aggravated by repetitious forceful exertions of the hands and arm
11. s Vibration may contribute to a condition called Raynaud s Syndrome These disorders de velop gradually over periods of weeks months and years It is presently unknown to what extent exposure to vibrations or repetitive motions may contribute to the disorders Hereditary factors vascular or circulatory problems exposure to cold and dampness diet smoking and work practices are thought to contribute to the conditions O SafetyRecommendations Tool operators should be aware of the following warning signs and symptoms so that a problem can be addressed before it becomes a debilitating injury Any user suffering prolonged symptoms of tingling numbness blanching of fingers clum siness or weakened grip nocturnal pain in the hand or any other disorder of the shoulders arms wrists or fingers is advised to consult a physician If it is determined that the symptoms are job related or aggravated by movements and postures dictated by the job design it may be necessary for the employer to take steps to prevent further occurrences These steps might include but are not limited to repositioning the workpiece or redesigning the workstation reassigning work ers to other jobs rotating jobs changing work pace and or changing the type of tool used so as to minimize stress on the operator Some tasks may require more than one type of tool to obtain the optimum operator tool task relationship BAD POSTURE GOOD POSTURE Tasks shou
12. so intended to reduce and moderate the effects of extended vibration exposure They vary widely in design material thick ness vibration reduction effectiveness and durability so consideration must be given to choosing the proper wrap for the specific application This information is a compilation of general safety practices obtained from various sources available at the date of produc tion However our company does not represent that every acceptable safety practice is offered herein or that abnormal or unusual circumstances may not warrant or require addi tional procedures Your work may require additional specific safety procedures Follow these procedures as required by your company Warnings The warnings found on these tools are an essential part of the product Warnings should be checked periodically for legibility Replace warnings when missing or when the information can no longer be read Replacements can be ordered as any spare part B 2 E 5 2 E lt 869976 For more information see the latest edition of ANSI B186 1 Safety Code for Portable Air Tools available from the Ameri can National Standards Institute Inc 11 West 42nd Street New York NY 10036 These operating instructions and service manual should accompany tool if it is subseguently sold or ownership is changed OPERATING INSTRUCTIONS OPERATION The WP 2049 and WP 2050 Impact Wrench is designed to operate on 90 psig 6 2 bar The
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