70QVBSF-7 Series Back Spotfacing Gun
Contents
1. INNER RACE OF BEARING Assemble the collar rotor bearing bearing plate and gov ernor assembly left hand threads to the rotor Check clearance between rear bearing plate and rotor The clear ance should be 001 0254mm after the governor is tightened to the rotor 10 001 025mm Clearance REAR BEARING PLATE After final assembly of the motor unit has been completed inspect it to ensure that the rotor does not rub the front bearing plate Assemble the motor unit with governor assembly and gear case to the handle When inserting the motor into handle do not damage governor Slide the governor valve 863991 into the governor valve bushing 863993 as far as it will go Screw a No 4 40 x 2 screw into the governor center 863983 and pull towards the rear until stopped by the governor center stop pin 843871 Measure the depth of the governor valve No 863991 from the rear end of the governor bushing 863993 and add governor shims between the governor center bearing 842768 and the governor valve until the valve and the bushing are flush within or 003 Assemble the governor spring auxiliary spring cap auxiliary governor spring and the speed adjusting cap to the handle Run the tool and adjust the speed to 350 R P M Mark the speed adjusting cap at the nearest notch to the desired speed remove and press on the speed indicating ring with the desired speed in line2. 6875 6880 17 4625mm 17 4752mm after being installed 70QVBSF 7 SERVICE INSTRUCTIONS REASSEMBLY REASSEMBLY The tool is reassembled in the reverse order of disassem bly Wash all parts thoroughly in a solvent and inspect for damage or wear before reassembly The rotor and spindle bearings should be replaced if excessive looseness is evident or if they feel rough As the various gears and bearings are being reassembled they should receive a generous amount of NLGI 2 EP grease REASSEMBLY GENERAL All parts should be washed in a solvent and inspected for damage or wear Particular attention should be given to all bearings gears gear pins and rotor blades as failure of these parts could cause damage to more expensive parts Rotor blades should be replaced if they measure less than 5 32 4mm on either end Must be replaced if less E than 5 32 4mm on either end During reassembly of the motorunit care mustbe exercised in orderto preventthe rotorfrom driftingforward and rubbing the front bearing plate To properly set the rotor collar 864196 assemble the rear rotor bearing into the rear bearing plate Hold the inner race of the bearing forward and measure the depth of the inner race from the face of the bearing plate Select or fit by sanding a rotor collar 0015 larger than this dimension SELECT OR SAND x ROTOR COLLAR TO 2 THIS MEASUREMENT PLUS 0015 038mm BEARING PLATE
3. 865587 843446 as oe 863986 KR 842768 863983 38 ES ae 863984 70QVBSF 7 HANDLE 203833 GRIP SLEEVE 847806 ie f 864584 1 863994 i 1 863991 i 3 i I t 1 I 1 1 1 t 1 PL 832638 2 r 201905 H 7 847033 By 1 FIG 833303 N AA too v 869581 PARTS LIST 203617 869582 60 1 CO ra 867916 PART NO NAME OF PART PART NO NAME OF PART 201905 Trigger Assembly 203616 Throttle Link Pin 203617 Throttle Valve 203833 Grip Sleeve 412775 Air Inlet Screen 832638 Trigger Pin 833303 Muffler Screen 842652 Indexing Blade Spring 847033 Retainer Ring 847411 O Ring 11 16 x 13 16 847806 Auxiliary Governor Spring 863987 Speed Adjusting Cap 863991 Governor Valve 863992 Governor Spacer 005 863993 Governor Valve Bushing 863994 863995 864185 864193 864505 864506 864584 867916 869581 869582 869603 869611 Governor Spring Indexing Blade Indexing Blade Pin Rotational Stop Set Screw Governor Spacer 007 Governor Spacer 020 Auxiliary Spring Cap Inlet Bushing Muffler Throttle Valve Spring Speed Indicating Ring Handle Incl 863993 Note Denotes parts not included in handle subassembly No 861801 Number of spacers required is variable The complete handl
4. torque developed by tool If tool is equipped with a chuck over 3 8 capacity two handles at right angles to the drill axis should be used One handle should contain the tool throttle such as pistol grip or offset handle models Always use a dead handle with low RPM high torque tools 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 syn drome and tendonitis can be caused or aggravated by repetitious forceful exertions of the hands and arms Vibration may contribute to a condition called Raynaud s Syndrome These disorders develop gradually over peri ods 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 vasculatory or circulatory problems exposure to cold and dampness diet smoking and work practices are thought to contribute to the conditions Any tool operator should be aware of t
5. with the mark Place a few drops of 10W machine oil in the air inlet before attaching the air hose This will ensure immediate lubrication of all parts as soon as the air is applied 70QVBSF 7 GEAR TRAIN 202312 843635 869255 867922 869254 842728 867907 202087 MM al eS gt DOG IV amv A 869256 867921 PARTS LIST PART NO NAME OF PART QTY 202032 202037 202312 842728 843635 867907 867921 867922 869254 869255 869256 Spindle Bearing Front 7 Spindle Shim 7 2nd Idler Gear Pin Spindle Bearing Rear 7 Gear Case 45T 7 1st Idler Gear Bearing 7 1st Idler Gear Pin 7 Idler Gear 19T Incl 867921 7 Idler Gear 15T 7 1st Red Spider 15T Includes 867922 The complete geartrain can be purchased as a subassembly using the part number 861954 11 70QVBSF 7 MOTOR 12 869584 14 only S PART NO 202279 812165 833859 842768 843446 843871 863983 863984 863986 864196 865587 869445 869451 869584 869607 869720 869788 812165 869788 869720 869445 PARTS LIST NAME OF PART Motor Spacer Cylinder Pin Governor Weight Pin Governor Center Bearing Rear Rotor Bearing Governor Center Stop Pin Governor Center Governor Weight Rear Bearing Plate Rotor Collar Bovernor Body Front Rotor Bearing Cyliinder incl 812165 Pinion Spacer Rotor 6T Front Bearing Plate Rotor Blade 84387 1 E
6. PA b NO bs TE i 1 kJ lod RR i 3 LR 5 BN M 0 h N hr 1 E n e M 0 70QVBSF 7 COMPLETE TOOL PART LIST a PART NO DESCRIPTION QUANITY 90005089 Motor adapter 632705 Identification plate 90855012 Drive coupling 93045018 Pin 93440143 Washer 90225306 Sliding bushing 90230085 Sealing ring 90285014 Adjustable thrust 90495032 Lock nut 90615085 Needle bearng 90810030 Nut 90820010 Tapped mounting base 90825005 Nylon nose 90835045 Spacer 91013008 Moving handle 91013009 Fixed handle 91216175 Pin 91825065 Retainer ring 93430062 Spring 93430661 Spring 93440123 Washer 93605095 Retainer ring 93620118 Nose Adapter 94215007 Vernier assembly 135DPV 7 40 Motor Assembly 90277037 Standard spindle 202020 Name plate drive screw not shown Subassembly 70100500 includes all parts except items1 6 9 amp 39 Refer to pages 11 12 amp 13 for gear train motor amp handle parts 70QVBSF 7 SERVICE INSTRUCTIONS DISASSEMBLY DISASSEMBLY Unscrew left hand threads the bearing retainer 202031 or chuck guard from the gear case GEAR TRAIN DISASSEMBLY Unscrew left hand threads the spindle bearing retainer 202031 The spindle may now be pressed out of the spindle bearings Unscrew and remove the gear case from the handle Re move the rotational stop set screw 864193 and unscrew the speed adjusting cap 863987 Note The speed adjusting cap has a triple start thread and should be marked
7. be checked periodically for legibility Replace warn ing labels when missing or when the information can no longer be read Replacement labels can be ordered as any spare part READ E inf OPERATING Ei E hi INSTRUCTIONS 288 B i 203185 E i i n gt al 4 LH 203185 H nea og gfe l inii 203287 This information is a compilation of general safety practices obtained from various sources available at the date of production 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 additional procedures Your work may require additional specific safety procedures Follow these proce dures as required by your company For more information see the latest edition of ANSI B186 1 Safety Code for Portable Air Tools available from the American National Standards Institute Inc 11 West 42nd Street New York NY 10036 OPERATING INSTRUCTIONS OPERATION The 70QVBSF 7 series drills are designed to operate on 90 PSIG 6 2 bar air pressure The 70QVBSF 7 series requires a 5 16 hose The drill is started by depressing the trigger and is stopped by releasing the trigger SPEED ADJUSTMENT Adjustment of the speed is done by depressing the indexing blade and rotating the speed adjustment cap to the desired RPM p INDEX BLADE e TRIGGER cer LUBRICATION An automatic in line filter lubricat
8. e can be purchased as a subassembly using Part No 861801 13 NOTES NOTES COOPER Tools CooperTools 7007 Pinemont Houston Texas 77040 Phone 713 462 4521 Fax 713 460 7008 www cooperindustries com
9. fit of hearing protection devices may be necessary For additional information on hearing protection refer to Federal Regulations Section 1910 95 Occupational Noise Exposure and American National Standards Institute ANSI S12 6 Hearing Protectors WARNING Wear respirator where necessary Drilling operations may produce hazardous fumes and or dust To avoid adverse health effects utilize adequate ventilation and or wear a respirator Respirators should be selected fitted used and maintained in accordance with Occupational Safety and Health Administration and other applicable regulations Read the material safety data sheet of any cutting fluids or materials involved in the drilling process WARNING Follow good ma chine shop practices Rotating shafts and moving components can entangle and en trap and can result in serious injuries Never wearlong hair loose fitting clothes gloves ties or jew elry when working with or near a drill of any type Do not wear loose fitting clothes long hair gloves ties or jewelry Cleco drills 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 and may result in breakage Installation of a filter regulator lubricator in the air supply line ahead of the tool is recommended Before the tool is con
10. he following warning signs and symptoms so that a problem can be addressed before it becomes a debilitat ing injury Any user suffering prolonged symptoms of tingling numbness blanching of fingers clumsiness 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 reposi tioning the workpiece or redesigning the workstation reas signing workers 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 The following suggestions will help reduce or moderate the effects of repetitive work motions and or extended vibration exposure Use a minimum hand grip force consistent with proper control and safe operation Keep body and hands warm and dry cold weather is reported to be a major factor contributing to Raynaud s Syndrome Avoid anything that inhibits blood circulation Smoking Tobacco another contributing factor Cold Temperatures Certain Drugs Tasks should be performed in such a manner that the wrist
11. nected to the air supply check the throttle for proper operation i e throttle moves freely and returns to closed position Being careful not to endanger adjacent personnel clear the air hose of accumulated dust and moisture Before removing a tool from service or changing a drill bit tap reamer or any accessory 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 Sudden and high reaction torque may CAUTION be experienced with any drill if drill motor stalls by excessive load being applied to drill bit or drill bit snags on material being drilled on break through when the drill bit passes through the material being drilled User must be prepared to resist torque Safety Recommendations CAUTION e Drill bits are sharp Handle them carefully to avoid injury e Cutting tool maximum speed rating must equal or exceed rated speed of tool Drill bits or accessories not centered properly inthe chuck can cause excessive wobble or vibration Use appropriately sized chuck key to securely tighten drill bit tap or reamer in drill chuck Always remove chuck key before starting tool Use care when drilling because of the possibility of the cutting tool bending or breaking A CAUTION Tools equipped with chuck capacity over 1 4 should have at least one handle offset at a right angle to drill axis to counteract
12. or 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 approxi mately 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 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 SPEED ADJUSTING CAP ose OPERATING PRINCIPLE Cycle sequence Connectthe machine to the compressed air supply Introduce the pilot into the spindle 40 For this lift the base 26 by pulling it towards the exterior Unscrew the clamping nut 25 Position the pilot into an appropriate collet Clamp the nut 25 and replace the base 26 1 Insert the pilot into the pre drilled hole on the part Place the spotfacer at the end of the pilot 2 Make sure that the depth is correctly set refer to the chapter Machine Settings Place the end 27 in contact with the part 3 Press the trigger of the drill 17 to set the spindle in motion 4 Press the handle 29 for carr
13. p Operation amp Service Manual COOPER Tools 823236 10 02 Quackenbush 70QVBSF 7 Series Back Spotfacing Gun Houston Operation 7007 Pinemont Houston TX 77040 Safety Recommendations For your safety and the safety of others read and under stand the safety recommendations and operating instruc tions before operating a drill Always wear protective equipment WARNING Impact resistant eye protection must be worn while operating or working near this tool For additional information on eye protection and face protection refer to Federal OSHA Regulations 29 Code of Federal Regulations Section 1910 133 Eye and Face Protection and American National Standards Institute ANSI 287 1 Occupational and Educational Eye and Face Protection Z87 1 is available from the American National Standards Institute Inc 11 West 42nd Street New York NY 10036 CAUTION Personal hearing protection is recommended when operating or working near this tool Hearing protection is recommended in high noise areas 85 dBA or greater The operation of other tools and equipment in the area reflective surfaces process noises and resonant structures can substantially contribute to and increase the noise level in the area Excessive air pressure above 90 PSIG or worn motor components can also increase sound level emitted by tool Proper hearing conservation measures including annual audiograms and training in the use and
14. s are maintained in a neutral position which is not flexed hyperextended or turned side to side Avoid Avoid OK Avoid 7 3 2 Neutral Avoid OK 5 Extension Neutral Flexion Radial Deviation Ulnar Deviation Stressful postures should be avoided select a tool appropriate for the job and work location Avoid highly repetitive movements of hands and wrists and continuous vibration exposure after each period of operation exercise to increase blood circulation Keep tool well maintained and replace worn parts eet Safety Recommendations Work gloves with vibration reducing liners and wrist sup ports are available from some manufacturers of industrial work gloves Tool wraps and grips are also available from a number of different manufacturers These gloves wraps and wrist supports are designed to reduce and moderate the effects of extended vibration exposure and repetitive wrist trauma Since they vary widely in design material thickness vibration reduction and wrist support qualities itis recommended that the glove tool wrap or wrist support manufacturer be consulted for items 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 Warning Labels The warning labels found on these tools are an essential part of this product Labels should not be removed Labels should
15. so that the threads can be started correctly when reassembled The auxiliary governor spring 847806 auxiliary spring cap 864584 governor spring 863994 and governor valve 863991 can now be removed from the handle The governor spacers should be removed either from the inside of the governor valve or the back of the governor center bearing at this time to avoid them being lost or misplaced during repair of the tool The motor and governor assembly can now be re moved from the handle by bumping the handle on the workbench Hold the front bearing plate in a vise and use a soft hammer to drive the rotor shaft out of the front rotor bearing This will permit the cylinder and rotor blades to be removed Hold the body of the rotor in the vise and unscrew the governor assembly left hand threads After removing the rear bear ing plate the rotor collar 864196 may be removed from the rear rotor shaft To disassemble the governor drive the governor center stop pin 843871 into the I D of the governor body 865587 Drive the governor weight pins 833859 out of the body to remove the governor weights 863984 To disassemble the handle unscrew the inlet bushing This will allow the throttle valve spring and throttle valve to drop out Should the governor valve bushing 863993 need replacing press itoutthe front ofthe handle Coat bushing with Locktite 271 and press in flush with rear of handle NOTE The new bushing must be honed to this dimension
16. ying out the spotfacing Release the handle 29 and then the trigger 5 Remove the spotfacer and repeat the sequence for the next part Mechanical Principle The back spotfacing unit is made up of a pneumatic motor which enables the spindle 40 to be set in motion by means of a drive 6 The spindle advance is controlled by the physical effort of the operator who manipulates the handle 29 Machine Setting Setting the spotfacing depth Turn off the machine Unscrew the lock nut 23 for releasing the setting Pull the vernier assembly 38 towards the lock nut 23 While maintaining the vernier assembly pulled out turn the click nut 22 to the desired value Each scale division is equal to 0 001 After setting the spotfacing depth release the vernier assembly 38 and tighten the lock nut 23 so that it touches the vernier assembly ue roke 70QVBSF 7 COMPLETE TOOL 4 F 7 sg 1 dl 1 ez 201 92 ov st Aw PA AX Nr NS p em 20 s Pa 3 7 PER MW T B am NEA M Me MET N hL a INN ERA SNN fi ie A NA HS SMN ma a a ee a enga E ater Za a A Nr gt VE im A al Jm Exd S T ME e nl L2 hh B MCN b le 1 Ne Se x 3 3 3
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