158QGDA Series - J & J Tooling
Contents
1. h N 22 79222 YN Lk lt 26 7 SSSI 9 1 N D D SRN NR rdi wu SER SNS c ce SS SS ST SERIE GEAR SET 625553 624105 Q N LO 1 LO LO 2 10 wn 10 NW NN woo woo 845758 625541 202264 844975 625544 625555 617220 625546 617200 624635 624638 624636 625589 uU 1D in LO iD in i 625540 625796 A N zi tn lt 4 lt tc lt qo 2 mr 2 5 ASSEMBLE WITH 271 LOCTITE HAND FEED CONVERSION KIT 14 Component Description 202264 613687 613828 614216 614217 617198 617200 617208 617217 617220 619017 619019 619377 619401 624105 624635 624636 624638 625530 625536 625537 625539 625542 625544 625546 625547 625549 625550 625551 625552 625553 625555 625556 625559 625571 625572 625589 625781 625796 833798 834228 842625 843179 843390 844975 845758 847095 863336 863365 864471 865123 882930 614244 619123 625870 625871 845090 847688 THRUST RACE SPACER NAME PLATE PINION H SK 596 GEAR H SK 596 DIFFERENTIAL DRIVE GEAR SPINDLE DRIVE GEAR SHAFT IDLER RETAINER RING BALL BEARING H SK 596 RING RETAINING BEARING BALL2. 2 E 613102 882209 613253 613225 Be 19732 Se 845409 619734 844303 347548 844265 842515 613697 613254 V 613109 x 613110 812231 PARTS LIST FOR POWER UNITS PART NO NAME OF PART SPINDLE RPM RANGES 612050 PLANET CAGE 613102 INLET BUSHING 613109 GASKET 613110 AIRSCREEN 613162 CYLINDERPIN 613225 CYLINDER 613234 ROTOR 613236 ROTORBLADE 613241 REAR BEARING PLATE 613242 SLEEVE 613248 FRONT ROTORBEARING 613253 THROTTLE VALVE WASHER 613254 THROTTLE VALVE INCL 812165 613271 PLANET WHEEL BEARING 613273 FRONT BEARING PLATE 613274 ROTOR SHAFT 613275 MOTORHOUSING 613277 PLANET CAGE 613278 PLANET CAGE WASHER 613279 PLANET WHEEL PIN 613280 PLANET WHEEL 613281 PLANET CAGE BEARING 613282 CLAMP RING 613283 HANDLE NUT 613285 INTERNALGEAR 613294 BEARING RETAINER NUT 613367 RETAINER RING 613374 GOVERNOR WEIGHT PIN 613375 GOVERNOR SPIDER 613376 GOVERNOR VALVE 613377 GOVERNOR SPRING CAP 613378 GOVERNOR SPRING RETAINER 613688 BUSHING 613697 TRIGGER 615391 EXHAUST DEFLECTOR 615466 MUFFLER SCREEN 615467 MUFFLER SCREEN 617305 PLANET WHEEL 617367 PLANET CAGE 617369 INTERNAL GEARAND HOUSING 617370 PLANET CAGE WASHER 617397 HANDLE INCL 613688 619987 617608 ROTOR SHAFT 617609 PINIONGEAR 617610 PLANET CAGE 619421 LOCKNUT 619731 V GOVERNOR JET 619732 V KNOB 619733 V HANDLE INCL 613688 842515 844265
3. head is serviced the recommended grease is Lubriplate 907 Use a good O ring lubricant on all O rings when servicing the tool mue RC m STOP COLLAR _ Variable Speed Models Only TOOL NOSE mp VARIABLE SPEED KNOB INLET BUSHING EN FEED CAM KNOB n LABEL STOP COLLAR NOTE Warning Labels can be ordered using part no 202691 Eye protection must be worn when disassembling tool or when air line is turned on A self relieving valve in close proximity to the repair station to bleed off air is recom WARNING mended SERVICE INSTRUCTIONS DISASSEMBLY GENERAL Remove all tubing from the tool and clamp the tool lightly on the flats of the motor housing in a soft jawed vise and loosen the lock ring No 619421 and unscrew the drill head from the power unit POWER UNIT GEAR TRAIN Remove the lock ring Using a suitable wrench unscrew the internal gear No 613285 from the motor housing No 613275 The planet cage No 613277 or No 612050 with the attached components may now be removed from the rear of the internal gear Unscrewing the bevel gear No 614216 will allow the removal of the front planet cage bearing No 864471 and the planet cage washer By pulling the three 3 planet ge
4. 1 617243 PARTS LIST FOR 158 RIGHT ANGLE HEAD PART NO _ ____ NAME OF PART __ ___ NAME OF PART 202583 SET SCREW 6241 06 STOP BODY 382731 BEVELED STOP COLLAR 624321 SPINDLE GUARD CAP 613365 STOP COLLAR INCL IN SPINDLE GUARD 613686 IDLER GEAR 624325 SPINDLE GUARD SHIMS 010 613687 IDLER GEAR SPACER INCL IN FLUID SPINDLE GUARD 613828 NAME PLATE 624614 CLUTCH ROLLER 614216 BEVEL PINION 624615 CLUTCH PLUNGER 614217 BEVEL GEAR 624616 PISTON 614228 OPTIONAL NOSE ADAPTER 2 1 4 20 624617 ALLEN CAP SCREW 614269 SHIM 005 624618 CYLINDER 614270 SHIM 010 624619 FEED GEAR BUSHING 615433 THRUST RACE 624620 GEAR STOP 616479 PIN INCL IN DIFF FEED GEAR 624622 HOUSING 617198 DRIVE GEAR 624635 BALL BEARING 617200 SPINDLE DRIVE GEAR 624636 HOUSING COVER 617203 PINION GEAR 624638 THRUST RACE 617208 IDLER SHAFT 624651 FLAT HEAD SCREW 617217 RETAINERRING 624916 CLUTCH ADJUSTMENT SPRING 617220 BALL BEARING 833075 PUSH ROD 617243 SCREW 8 32 X 3 16 834228 DRIVE SCREW 617245 ALLEN CAP SCREW 842160 BALL 7 32 617246 CAM 842161 BALL 3 16 617247 TRIGGER INCL 884125 842515 REVERSE STOP SPRING 617249 KNOB 843179 RETAINERRING 617252 PLUNGER TRIGGER 843280 DOWEL PIN 617253 NEEDLE BEARING 843390 DRIVE GEAR SPACER 617257 CAM SPRING 844303 O RING 3 16 X 5 16 617391 CAM FOLLOWER 847095 BALL BEARING 617395 VALVE BODY 847272 O RING 1 16 X 3 4 617396 ALLEN CAP SCREW 847688 ALLEN CAP SCREW 6190
5. 17 RETAINERRING 863365 WOODRUFF KEY 619019 BALL BEARING 864287 TRIGGER DOWEL PIN 619377 BALL BEARING 864471 BALL BEARING 619830 SPRING 882209 TUBING ELL 622466 SPINDLEWRENCH 882407 AIR LINE 884125 RETRACT LEVER PIN RIGHT ANGLE HEAD fay SUBASSEMBLIES gt C SPINDLE WRENCH 622466 FEEDRATE PART DES for 15 158 amp 230 RA Tools 621914 621915 621916 621917 E WARNING 621919 gt Spindle Wrench is used to hold TP spindle when removing cutters Parts not included in right angle head Air supply should be disconnected subassemblies from tool before spindle wrench is used 2 a SHB SB APO AH NA WO HS SH AB NYO NM H AH NH ND Ww AH SPINDLE RPM 194 3 613271 613280 SPINDLE SPINDLE RPM 92 110 140 185 230 SPINDLE Governor Assembly 613374 613377 613367 See Chan 613376 A See Chart 613378 613274 617608 613248 617609 613294 613281 612050 617370 6 613271 617305 i 617305 613271 864471 MEN 21 617609 613281 158 POWER UNITS 613281 613294 613279 g 1 2 617608 615467 613248 615391 613280 5 f ago 612050 3 3 617370 n uu 613236 E 613234 863365 613273 613248 843618 613294 844308 812165 T 613282
6. 3 Flat Head Cap Screws One 1 Bushing Two 2 Spring One 1 Gear Stop 2 1 2 1 1 1 POWER UNIT amp GOVERNOR CHARTS 47 Thru 120 SPINDLE RPM amp 175 Thru 445 POWER UNIT RPM POWER UNIT GOVERNOR GOVERNOR GOVERNOR POWER UNIT SPINDLE CODE NO SPRING WEIGHT RPM 621371 611236 613370 613373 445 621370 611237 613371 613373 380 621369 611238 613370 613372 265 621368 611239 613369 613372 215 621367 611240 613368 613372 175 621372 611240 613368 613372 175 445 47 120 POWER UNIT WITH VARIABLE SPEED BACKHEAD 92 Thru 230 SPINDLE RPM amp 350 Thru 850 POWER UNIT RPM POWER UNIT GOVERNOR GOVERNOR GOVERNOR POWER UNIT SPINDLE CODE NO SPRING WEIGHT RPM RPM 621456 611236 613370 613373 850 230 621455 611237 613371 613373 700 185 621454 611238 613370 613372 525 140 621453 611239 613369 613372 470 110 621452 611240 613368 613372 350 92 621457 611240 613368 613372 350 850 92 230 POWER UNIT WITH VARIABLE SPEED 194 Thru 485 SPINDLE RPM amp 750 Thru 1800 POWER UNIT RPM POWER UNIT GOVERNOR GOVERNOR GOVERNOR POWER UNIT SPINDLE CODE NO SPRING WEIGHT RPM RPM 611902 611236 613370 613373 1800 485 611903 611237 613371 613373 1500 388 611904 611238 613370 613372 1100 288 611905 611239 613369 613372 900 232 611906 611240 613368 613372 750 194 611908 611240 613368 613372 750 1800 194 485 POWER UNIT WITH VARIABLE SPEED BACKHEAD 380 Thru 950 SPINDLE RPM amp 1450 Thru 3600 POWER
7. 847548 re Cee a ek DE Rol 1 0 4 3 0 07 a 4 00 0 5 4 4 4 a Se ke se gy 619734 V CAMBUSHING 619735 V GOVERNORJET 619987 GOVERNORJET 812165 PIN 812231 RETAINERRING 842515 V SPRING 843618 SHAFT RETAINER RING 844111 TRIGGERPIN 844265 STEEL BALL 1 8 VARIABLE SPEED REQUIRES 3 844303 V O RING 3 16 X 5 16 844308 O RING 3 8 X 9 16 845409 V KNOBPIN 847511 REARROTORBEARING 847548 V PIN 863365 ROTORKEY 864471 PLANET CAGE BEARING 882209 AIRFITTING NOTE V VARIABLE SPEED UNITS ONLY RADA ee ND ee i a eee eR ee ua nn ni RI 0 0 1 IND SPO a CLIE GEIL lE cilc 23 27 res 22 221 1 NS S 22 22 625571 625572 015 SHIM SS SN 613828 834228 865123 S SSS LiL SECTION 222 ONE REVOLUTION OF HANDLE GENERATES 016 SPINDLE TRAVEL SS m o z lt lt 222 724 LLM ML SSSI 2222 A 277 v 227 C 227 gt 7
8. BEARING BALL KEY SCREW BEARING HOUSING COVER THRUST WASHER HAND WHEEL DRIVE SHAFT COVER FEED SHAFT HAND CRANK BODY HOUSING PLUG SPINDLE SPACER GUIDE PILLAR FEED BLOCK BEARING BLOCK BEARING BLOCK THRUST BEARING DRIVE SPINDLE HOUSING BUSHING BEVEL GEAR SET SHIM 010 TH K SHIM 015 TH K FLEXLOC NUT NOSE SPECIAL SPINDLE GUARD FLUID SCREW ALLEN CAP SCREW DRIVE NUT HEX RETAINER RING SPACER RETAINER RING SCREW SHC BEARING BALL ECC SHAFT KEY KEY WOODRUFF BEARING BALL SCREW SHC WASHER ADAPTER SPACER IDLER GEAR PINION amp SHAFT PIN ROLL SCREW SHC 2 1 1 1 1 1 1 1 1 1 1 2 1 1 4 1 1 1 1 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1 1 1 1 1 1 4 2 2 1 2 1 2 1 1 1 1 2 1 1 1 1 1 1 COOPER Tools CooperTools 7007 Pinemont Houston Texas 77040 Phone 713 462 4521 Fax 713 460 7008 www cooperindustries com
9. Non ferrous metal dusts are particularly haxardous Examples Aluminum Magnesium Titanium Zirconium Never collect Magnesium in a dry dust collector Never collect spark generating material in the same dust collector with combustible material Examples Collecting both Steel and Aluminum dust or Steel and Titanium dust Never use flamable finishing lubricants Some individuals are susceptible to disorders of the hands and arms when exposed to tasks which involve repetitive work motions Those individuals predisposed to vasculatory or circulatory problems may be particularly susceptible Cumulative trauma disorders such as carpal tunnel syndrome and tendinitis may be caused or aggravated by repetitious forceful exertions of the hands and arms These disorders develop gradually over periods of weeks months and years Avoid OK Avoid Avoid OK Avoid 5 2 Extension Neutral Flexion Radial Deviation Neutral Ulnar Deviation Tasks should be performed in such a manner that the wrists are maintained ina neutral position which is notflexed hyper extended or turned side to side Stressful postures should be avoided and can be controlled through tool selection and work location Any tool operator 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 clumsiness or weake
10. UNIT RPM POWER UNIT GOVERNOR GOVERNOR GOVERNOR POWER UNIT SPINDLE CODE NO SPRING WEIGHT RPM RPM 621365 611236 613370 613373 3600 950 621364 611237 613371 613373 2900 760 621157 611238 613370 613372 2175 570 621159 611239 613369 613372 1745 460 621160 611240 613368 613372 1450 380 621366 611240 613368 613372 1450 3600 380 950 POWER UNIT WITH VARIABLE SPEED BACKHEAD 617396 617395 DRILL HEAD 8421 60 Md 833075 842161 882407 55 834228 9 613828 7 gor L _ 202583 614269 614270 202583 624615 624916 624321 SPINDLE GUARD CAP SPINDLE GUARD 624325 6 884125 2 Fluid Spindle Guard Only 617252 613365 617243 624106 617249 77 843280 864287 624916 7 617257 617246 624614 T 842161 n Ir d lin 17391 9 6479 See Spindle Feed Gear Chart 617200 SPINDLE See Diff Feed Gear Chart 617198 DRIVE GEAR 617208 1 619377 758890 847688 aa 624636 S 624619 E p 847272 _ 6 844303 97 624651 3 882209 1 9 16 18 Thread Std 2 1 4 20 Thread Adapter Opt 614228 SPINDLE FEED GEAR 615677 615893 615894 615895 615896 INSTALL SPINDLE 617262 FROM THIS DIRECTION DIFF FEED GEAR 624642 624643 617356 617356 615900 617358 38273
11. ar pins No 613279 out of the front of the planet cage the planet gears may be removed MOTOR UNIT To remove the motor unit from the motor housing invert the tool in the vise Loosen the handle nut No 613283 and remove the handle The complete motor unit may now be slipped out through the rear of the motor housing Unscrew the governor Left Hand Threads and remove the rear bearing plate No 613241 from the shaft Re move the rotor shaft retainer No 843618 and using a soft mallet tap the rotor shaft out of the front rotor bearing No 613248 This will allow the front bearing plate No 613273 the cylinder No 613225 rotor blades No 613236 and the rotor No 613234 to be removed Remove the two 2 keys No 863365 from the rotor shaft No 613274 and clamp it in the vise with the governor up To remove the front rotor bearing from the front bearing plate for inspec tion the rotor bearing retainer No 613294 Left Hand Treads must be unscrewed first DRILL HEAD To disassemble the drill head unscrew the four 4 stop body screws No 617245 and remove the stop body No 624106 with its attached components Loosen the two 2 set screws No 202583 and remove the gear stop Removing the three 3 piston body screw No 624651 will allow the cylinder No 624618 and attached compo nents to be removed from the hou
12. e spindle will retract Then the gear stop adjustment can be adjusted when drilling as needed Impotant To much tension can result in damage to gears SHOULD BE TOWARD AIR INLET BUSHING SPINDLE GUARD CHARTS 624321 SPINDLE GUARD SPINDLE GUARD 624325 POSITIONING SHIMS Spindle Guard Only GUARDS FOR SOLID SPINDLES GUARDS FOR FLUID SPINDLES PART LENGTH PART LENGTH NUMBER NUMBER 624360 624375 624361 624376 624362 624322 624103 624377 624363 624323 624104 624376 INCLUDES SPINDLE GUARD CAPPART INCLUDES 4 010 SPINDLE GUARD 624321 WITH BOTH SOLID AND POSITIONING SHIMS PART NO 624321 FLUID SPINDLE GUARDS WITH FLUID SPINDLE GUARDS ONLY FEED CHART FOR 158 RIGHT ANGLE DRILL FEED PER SPINDLE NUMBER OF DIFFERENTIAL NUMBER OF SPINDLE REVOLUTION FEED GEAR FEED GEAR THREAD PER INCH 615677 624642 613365 615893 624643 613365 615894 617356 613365 615895 617356 613365 615896 615900 613365 617262 617358 613365 CONVERSION CHART FOR CHANGING 158RAC TO 158RAD FEED PER CONVERSION KIT NUMBER REVOLUTION 621920 8 621921 6 621922 4 621922 4 621923 2 621924 0 Parts included in Conversion Kit Two 2 Screws One 1 Two 2 Clutch Rollers One 1 Two 2 Clutch Plunger One 1 One 1 Piston One 1 Thrust Washer Two 2 Flat Head Cap Screws 1 Differential Feed Gear 1 1 1 1 Housing 1 Bearing 1 Housing Cover 1 1 One 1 Cylinder Three
13. e drill may suddenly spin and back away from the drill fixture Warning Labels The warning labels found on these tools are essential parts of this product Labels should not be removed Labels should be checked periodically for legibility Replace warning labels when missing or when the information can no longer be read Replacement labels can be ordered from the manufacturer Safety Recommendations CAUTION spindle on right angle positive feed drills retracts at a much faster rate than it feeds Care should be taken to avoid entrapment Nose pieces usually used with these drills are generally slotted for visibility and access to chuck cutter and retract stop adjustments A spindle guard should be used when operating tool Spindle guards in one inch increments are available to accommodate any length spindle Slotted spindle guards are available for tools with fluid swivels WARNING Keep hands and fingers away from slot in spindle guard and nose piece when handling or operating tool WARNING Wear respirator where necessary Drilling or other use of this tool may produce hazardous fumes and or dust To avoid adverse health effects utilize adequate ventilation and orarespirator Read the material safety data sheet for any cutting fluids or materials involved in the drilling process A WARNING Most dusts are combustible See material safety data sheets for combustibility of a specific dust
14. ned grip noctur nal 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 redesigningthe workstation reassigning workers to other jobs rotating jobs changing work pace and or changing the type of tool used 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 recommendations will help reduce or moderate the effects of repetitive work motions The operator of any drill should 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 Avoid awkward postures Keep wrists as straight as possible Interrupt work activities or rotate jobs to provide periods free from repetitive work motions OPERATING INSTRUCTIONS OPERATION The tool is designed to operate on 90 psig 6 2 bar air pressure using a 1 2 hose Important Before installation or removal of a cutter or such accessory the tool should be disconnected from the air su
15. ons Section 1910 95 Occu pational Noise Exposure and American National Standards Institute ANSI 12 6 Hearing Protectors Follow good machine shop practices Rotating shafts and moving components entangle and entrap and may result in serious injuries Never wear long hair loose fitting clothes gloves ties or jewelry when working with or near a drill of any type Do not wear loose fitting clothes long hair gloves ties or jewelry A CAUTION Quackenbush drills are designed to operate 90psig 6 2 bar air pressure Excessive air pressure can increase the loads and stresses on tool parts and drills and may result in breakage The installation of a filter regulator lubricator in the air supply line is highly recommended Before removing a tool from service or changing drill bits 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 Cutting tools used with these Quackenbush drill motors are sharp Handle them carefully to avoid injury A CAUTION Before mounting any positive feed drill check the lock screws in the tooling fixture and drill bushing Make sure both are in good condition and securely tightened Lock Screws 1 Tool Nose Standard Threaded Drill Bushing Tooling Fixture Positive feed drills can exert high torques andhigh thrustloads If failure of the lock screws or drill bushing occurs th
16. p Operation amp Service Manual COOPER Tools 823171 1 02 Quackenbush 158QGDA RAD SU RS RIGHT ANGLE DRILL Houston Operation 7007 Pinemont Houston TX 77040 Recoules Operation Zone industrielle 28 Avenue Maurice Chevalier 77831 Ozoir la Ferriere Cedex France Safety Recommendations For your safety and the safety of others read and understand the safety recommendations and operating instructions Always wear protective equipment WARNING Impact resistant eye protection must be worn while operating or working near this tool For additional information on eye and face protection referto Federal OSHA Regulations 29 Code of Federal Regulations Section 1910 133 Eye 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 N Y 10036 A 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 For additional information on hearing protection refer to Federal OSHA Regulations 29 Code of Federal Regulati
17. pply line or the air supply should be shut off and drained The power unitis started by turning the throttle valve lever The speed can be varied on variable speed models by turning the variable speed knob The feed mechanism is engaged by depressing the feed cam knob while the tool is running at a low R P M The spindle will automatically retract when the stop collar depresses the retract lever The spindle may be manually retracted at any stage by pulling up on the retract lever The tool should be shut off before the spindle is completely retracted THROTTLE VALVE LEVER SPINDLE GUARD RETRACT LEVER Pa LUBRICATION An automatic in line filter regulator lubricator is recom mended 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 amount of oil should be avoided STORAGE the event that it becomes necessary to store the tool for and 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 When the angle
18. sing Unscrew the three 3 cover screws No 847688 and remove housing cover No 624636 with its attached components By tapping the housing on a soft block of wood the bevel gear No 614217 and attached bearing No 864471 may be removed MM M INSTALL SPINDLE FROM THIS DIRECTION ONLY mended Eye protection must be worn when disassembling tool or when air line is turned on A self relieving valve in close proximity to the repair station to bleed off air is recom SERVICE INSTRUCTIONS REASSEMBLY GENERAL The tool is reassembled in the reverse order of disassem bly Wash all parts thoroughly and inspect for wear or damage before reassembly MOTOR UNIT Rotor bladesshould be replaced at every repair cycle or if worn as much as 1 16 below the rotor surface NOTE The beveled edge of the blade is the trailing edge The rotor No 613234 and the cylinder No 613225 should have the R to the rear to insure clockwise rotation POWER UNIT GEAR TRAIN As the internal gear components and the gear ho
19. using components are assembled a generous coating of No 2 Moly grease should be applied to all parts The tang end of the planet gear pins must be toward the front of the planet cage so that the planet cage washer will lock them in place MAXIMUM 1 16 ROTOR BLADE BEVELED EDGE IS gt THE TRAILING EDGE DRILL HEAD The spindle should be installed from the drive gear side The design of this tool is such that shims are not required to set the bevel gears Correct engagement of the bevel gears is obtained by running the power unit at a very slow R P M and screwing it into the drill head until the gear interference is felt Back the power unit off approximately 1 8 turn or until there is no gear interference and screw down the locking ring No 619421 By following this procedure maximum gear engagement is obtained After the tool is assembled place a few drops of 10W machine oil in the air inlet before attaching the air hose This will insure immediate lubrication of all the parts as soon as the air is applied The gear stop pressure is adjusted by turning the two 2 set screws No 202583 on either side of the angle head Turning the set screws clockwise will increase the tension on the gear stop and make the spindle retract Turning the set screws counterclockwise will decrease the tension on the gear stop and allow the gear stop to ratchet easier The gear stop adjustment should be set at the repair station before drilling so th
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