158QGDB- S400 & S600 POSITIVE FEED DRILLS
Contents
1. lt 619393 Spindle Spring 619394 Spring 619395 Clutch Spring 615752 Gear Cover 617557 Idler Gear 619398 Spring Cover Retainer Ring 617563 Spindle Gear 619399 Spacer 619400 Spindle Adaptor 619401 Driver Key 619403 Gear Spacer 617567 Motor Gear 619383 Needle Bearing 619427 Key Existing in std gear box 812232 Retainer Ring Existing in std gear box 619404 Plug Large 619413 Half Nut Spring 847095 Ball Bearing Existing in std gear box 619418 Return Stops Matched Pair 619420 Feed Collar 619425 Helical Gear 619427 Spindle Gear Key 619429 Lead Screw Driver Gear 619432 Driver Needle Bearing 619462 Shaft Housing 619465 Set Screw 619614 Bearing Retainer 619617 Return Stop Collar rom N PNY sch HSB sch sch sch dd sch ae ae sch ae ae sch HB Bee ae sch ae es sch NI sch PO YO SHS sch 1 ech sch sch sch sch NM AH sch sch sch ch 1 sch sch sch sch sch sch sch sch 1 sch NA py sch e 613274 HEAVY DUTY GEAR BOX 613280 613248 613271 613281 613294 613279 E Se rg EM A 843618 san ER N 613281 6132804 eg G f Governor Assembly D I ze chan 613377 613284 613376 613367 613278 STANDARD S GEAR BOX RD see Chan 864471 ER 619421 613280 gt N 613279 613284 i 613283 613278 Vit 864471 gem 613273 613248 pd 611157 ps 612. 29 Code of Federal Regulations Section 1910 95 Occupational Noise Exposure and American National Standards Institute ANSI S12 6 Hearing Protectors Follow good machine shop prac tices Rotating shafts and moving components entangle and entrap and may result in serious injuries Never wear long hair loose fitting clothes gloves ties or jew elry when working with or near a drill of any type A WARNING Quackenbush drills are designed to operate on 90psig 6 2 bar maximum air pressure using the Do not wear loose fitting clothes proper hose Excessive air pres long hair gloves ties or jewelry sure increases 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 ahead of the tool is highly recom mended CAUTION Before the tool is connected to the air supply the throttle should be checked for proper operation i e throttle valve moves freely and returns to closed position Before removing 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 drill motors are sharp Handle them carefully to avoid injury Before mounting any positive feed drill check 07 lock screws in the tooling fixture and drill bushing Make sure b
3. Bushing 847511 Rear Rotor Bearing 613697 Trigger 847548 Knob Stop Pin 615391 Exhaust Deflector 863365 Rotor Shaft Key 615466 Wire Screen Inner 864471 Planet Cage Bearing sch O sch sch sch sch sch JE sch sch sch sch sch NM Ai ck ch 615467 Wire Screen Outer 55 thru 135 RPM models require twice the quantity shown The complete backhead can be purchased as a subassembly using the following part numbers Standard Part No 611259 Variable Speed Part No 611476 SPINDLE SPEEDS IDLER SPINDLE GOVERNOR _ GEAR gear 5 gear pin 611236 619604 619603 619436 611692 611237 See 611693 611239 DET 611695 611240 407 611696 611236 619434 619439 619436 611692 611237 as 611693 611239 SPACER 611695 611240 611696 611236 619434 619961 619960 611692 611693 611237 POWER 611238 611694 611240 32 611696 611236 619434 619439 619438 611692 611237 611693 dm er See 611240 SE EN 611696 611236 617567 617557 617563 621464 611237 621463 611238 621462 611239 32T 20T 621461 611240 621460 SPINDLE FEEDS CROSS SHAFT SUB ASSY 619626 619627 619515 619638 619516 611163 619626 619627 619408 619615 619408 611163 619367 619368 619409 619615 619408 611148 619371 619372 619515 619638 619516 611150 619369 619370 619409 619615 619408 611149 619371 619372 619409 619615 619408 611150 619373 619374 619409 619615 619408 611151 619371 619372 619496 619647 619495 611150 619373 619
4. gear body Left Hand Threads The No 619614 bearing retainer can now be unscrewed the rest of the way for removal of the spindle spring The extension spindle with associated parts can now be removed Remove the No 619390 stop collar snap ring and remove the return stop collar Remove the gear cover screws and remove the No 612795 gear cover This will allow removal of the spindle gear gear spacer No 619403 and idler gear The drive shaft with mating parts can now be removed through the rear of the tool Remove the three No 865405 bolts and pull back the No 619742 gear housing from the No 619363 gear body Remove the No 843179 snap ring from the lead screwdriver through the rear of the gear body and press the lead screwdriver from the No 864471 ball bearing Remove snap ring No 812233 and remove the ball bearing from the gear body Remove the No 812233 snap ring from the front of the lead screw and pullthe extension spindle and ball bearing from the lead screw Remove the No 843179 snap ring to remove the ball bearing from the extension spindle To remove the worm wheel and cross shaft No 619378 remove the snap rings No 619376 No 619016 and plugs No 619404 No 619118 from each end of the gear body and press the cross shaft out through the side with the larger opening Remove the No 619016 snap ring and press the No 619382 pinion and shaft out of the gear housing The various assemblies can be broken down into their indi
5. retainer No 619016 Install bearing No 86447 1 and retainer No 81 2233 per drawing Put needle bearing No 619432 keys No 842240 spur gear No 619429 and spacer No 619399 on the lead screwdriver Install in bearing in gear body Install retainer No 843179 Install gear housing No 619742 on gear body with cross shaft at right angle to gear housing Install bearing No 844966 retainer ring No 812232 and worm desired on drive shaft Install in gear housing Install back gears and cover per drawing Install worm wheel desired for desired feed on cross shaft No 619378 two 2 steel balls No 842274 two 2 pins No 619816 thrust washer No 619379 pin No 845409 gear No 619425 spacer No 619380 clutch spring No 619395 as shown in drawing and bearing No 619377 Install in gear body Put in plug No 619404 retainer ring No 619376 bearing No 844833 plug No 619118 and re tainer ring No 619016 Rotate drive shaft by hand to check for smooth operation of gears Install half nut spring No 619413 and pin No 619154 in shaft housing Put O ring No 833949 bumper ring No 619622 stops No 619418 stops assembled to contact lead screw simultaneously collar and retainer ring No 619390 on shaft housing Install bearing No 864471 retainer ring No 843179 onthe extension spindle Install lead screw desired and retaining ring No 812233 Install keys No 619401 in lead
6. 1237 613371 613373 611694 611238 613370 613372 611695 611239 613369 613372 611696 611240 613368 613372 1606 9 00 Alddng uz 1129 OA O Me o eaga Sl Jet Hol SSINJYYNOS NOILWOISIO3dS Vli vw 5 ET 00 YA 500 3009 LIM 0933 ON YH 2 HSINIZ 53903 duVHS 8 181 1H NOIIVTIIVISNI 0333 403 AYVSS303N 3 8 OL SlUVd 31VOIONI OL AINO 39N343438 SI OL au 0333SS0UI GuV NVIS NI SLYVd S9NIISIX3 JO 110 iv 9NILSIX3 910619 9NIH YINIVLIY 9NILSIX3 811619 90 1d TIVWS ES EK 776 fee 2410 f un AREE AA A AE STA ner RR RSS Si YE 77222 046 719 3 IQNVH ONI1SIX3 4 2619 9499 TIVE 7704 Be g96 19 ONILSIX3 9426 I9 YINIVL3Y DR RD 15 642619 H3HS VM 196919 1IVHS 8050 ONILSIX3 601G 18 Nid 7708 619 008 uv39 9NILSIX3 G2V619 9 0095 0075 809985 ONILSIX3 08 619 Y3DVAS 5 5 5 ge COOPER Tools CooperTools 7007 Pinemont Houston Texas 77040 Phone 713 462 4521 Fax 713 460 7008 www cooperindustries com
7. 3697 Y p o 844111 en 20 619732 d 619734 844303 quse 844265 es 42515 1 613254 9025 4847548 A hi 613253 EA 819586 Q 812231 Governor See Page 11 847511 619735 PART LIST POWER UNITS Panno NameotPat 611157 Swivel Assembly 617234 Planet Cage 613109 Gasket 617369 Planet Housing 613110 Screen 617397 Backhead Incl 613688 619987 613162 Cylinder Pin 617644 Planet Cage 613225 Cylinder 619421 Lock Nut 613234 Rotor 619526 Swivel Body 613236 Rotor Blade 619527 Swivel Bushing 613241 Rear Bearing Plate 619731 Governor Jet Cam 613242 Sleeve 619732 Knob 613248 Front Rotor Bearing 619733 Handle Incl 613688 842515 613253 Throttle Valve Washer 844265 847548 613254 Throttle Valve Incl 812165 619734 Cam Bushing 613271 Planet Wheel Bearing 619735 Governor Jet 613273 Front Bearing Plate 619987 Governor Jet 613274 Rotor Shaft 812165 Stop Pin 613275 Motor Housing 812231 Retainer Ring 613278 Planet Cage Washer 842515 Spring 613279 Planet Wheel Pin 843618 Retainer Ring 613280 Planet Wheel 844111 Trigger Pin 613281 Rear Planet Gage Bearing 844265 Steel Ball 1 8 613282 Clamp Ring 844303 O Ring 3 16 x 5 16 613283 Handle Nut 844308 O Ring 3 8 x 9 16 613284 Planet Gage 844312 O Ring 5 8 x 13 16 613285 Planet Housing 845409 Knob Pin 613294 Bearing Retainer Nut 845744 Swivel Retainer Ring 613688 Throttle Valve
8. 374 619496 619647 619495 611151 621236 1 14LH 621244 621237 1 1 4 12 LH 621245 621238 4 1 2 12LH 621246 614751 2 16 LH 614757 CHUCK amp MORSE TAPER ADAPTORS PART NO NAME OF PART 619406 No 3 Morse Taper 619405 No 2 Morse Taper 619533 No 1 Morse Taper 849121 Chuck Key 849415 1 2 Cap Chuck POWER UNIT amp GOVERNOR CHARTS 1460 thru 3440 RPM POWER UNIT GOVERNOR GOVERNOR GOVERNOR SPINDLE CODE NO SPRING WEIGHT RPM 611692 611236 613370 613373 611693 611237 613371 613373 611694 611238 613370 613372 611695 611239 613369 613372 611696 611240 613368 613372 450 thru 1100 RPM POWER UNIT GOVERNOR GOVERNOR GOVERNOR SPINDLE CODE NO SPRING WEIGHT RPM 611692 611236 613370 613373 611693 611237 613371 613373 611694 611238 613370 613372 611695 611239 613369 613372 611696 611240 613368 613372 265 thru 640 RPM POWER UNIT GOVERNOR GOVERNOR GOVERNOR SPINDLE CODE NO SPRING WEIGHT RPM 611692 611236 613370 613373 611693 611237 613371 613373 611694 611238 613370 613372 611695 611239 613369 613372 611696 611240 613368 613372 125 thru 310 RPM POWER UNIT GOVERNOR GOVERNOR GOVERNOR SPINDLE CODE NO SPRING WEIGHT RPM 611692 611236 613370 613373 611693 611237 613371 613373 611694 611238 613370 613372 611695 611239 613369 613372 611696 611240 613368 613372 55 thru 135 RPM POWER UNIT GOVERNOR GOVERNOR GOVERNOR SPINDLE CODE NO SPRING WEIGHT RPM 611692 611236 613370 613373 611693 61
9. SEE PAGE 10 S 619399 5400 617383 5 9600 617399 812233 H i deesse 864471 843179 e 842515 4 8422744 6193449 d 29 619420 619390 1 845409 2 3 LEAD SCREW 619072 SEE PAGE 10 5400 oy 5600 68 619016 46 2 619363 812233 864471 Osama 619382 619016 SEE PAGE 10 843179 617062 619617 STANDARD 619365 619620 619622 HEAVY DUTY 5400 614738 5600 614634 833949 ven 619641 5400 619462 ein S600 844966 622432 844265 9 i 61 ES HALF NUTS SEE PAGE 10 gt i i 1 1 1 l l 1 D H i 1 1 1 1 1 1 i 1 1 1 4 1 Y 619743 amp 4700s 2 i 619743 MOTOR GEAR SEE PAGE 10 IDLER GEAR SEE PAGE 10 6193039 865184 STD DUTY GEAR BOX 617567 SPINDLE GEAR SEE PAGE 10 1 619383 amp 617563 617557 1 9 619383 3 61938 865184 OPTIONAL HEAVY DUTY GEAR BOX di DRILL HEAD PARTS LIST Name of Part Name of Part 612795 Gear Cover 619618 Lead Screw Driver 614634 S600 Drive Shaft Heavy Duty 619620 S600 Drive Shaft Standard 614635 S600 Drive Shaft Heavy Duty 619621 Spindle Spring Thrust Washer 614738 S400 Drive Shaft Heavy Duty 619622 Bumper Ring 614739 5400 Extension Spindle Heavy Duty 619624 S600 Extension Spind
10. T HAND THREADS To disassemble the handle remove the No 812231 snap ring and gently push the throttle valve out of the bushing Unscrew the swivel nut for cleaning and inspection of the Screen REASSEMBLY The power unit is reassembled in the reverse order of disassembly Degrease all parts and inspect for wear or damage before reassembly During reassembly all parts should receive a generous coating of No 2 Moly grease If rotor blades are worn as much as 1 16 below the rotor surface they should be replaced NOTE The beveled edge ofthe blade is trailing edge The rotor No 613234 and the cylinder No 613225 should have the L to the rear to insure correct rotation As the internal gear and components are assembled the tang end of the planet pins must be toward the front of the planet cage so that the planet cage washer will lock them in place Assembly steps below should be followed when reassem bling the drill head All working parts should receive a thin coat of Lubriko T 517 grease during reassembly The cavi ties in and around the lead screwdriver should be packed with grease to aid in cushioning the spindle return cycle Install bearing No 619072 helical gear No 619425 and pin No 845409 on the pinion and shaft No 619382 Install in the gear body No 619363 with a suitable press tool Press the bearing No 619072 in the housing by pressing against helical gear No 619425 Install bearing No 844833 and
11. avoid tripping Nose pieces usually used with these drills are generally slotted for visibility and access to chuck and cutter WARNING Keep fingers and hands away from slots in the tool nose at all times Rapid re traction occurs automatically on most models after drilling cycle and can be activated manually even with the air supply disconnected on some models Keep hands fingers away from slot in tool nose when handling or operating tool Due to the multitude and variety of tooling CAUTION applications the User s Methods Engineer ing Standard Tooling Engineering and or Safety Engineering Departments etc must consider any hazards that may be associated with each specific application of this product and provide adequate operator protection from inadvertent contact with any moving components Some individuals are susceptible to disorders of the hands and arms when exposed to vibration and or tasks which involve repetitive work motions Those individuals predisposed to vasculatory or circulatory problems may be particularly susceptible Cumulative trauma disor ders 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 Tasks should be performed in such a manner that the wrists are maintained in a neutral position which is not
12. flexed hyperextended 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 ofthe following warning signs and symptoms so that a problem can be addressed before it becomes a debilitating injury Any user suffering from prolonged symptoms of tingling numbness blanching of fingers clumsiness or weakened grip inability to hold objects nocturnal pain in the hand or any other disorder of the shoulders arms wrists or fingers should notify their employer so that a review of what steps might be taken to prevent further occurances These steps might include but are not limited to repositioning the workpiece or redesigning the workstation reas signing tool users to other jobs rotating jobs changing worker 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 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 OK Avoid Avoid OK Avoid 72 gt 2 Extension Neutral Flexion Rad
13. g drilling operation The operation can be stoppedatany time by rotating collar B clockwise disengag ing positive feed mechanism and retracting spindle To adjust unit for depth control rotate collar C Clockwise rotation increases length of stroke On retraction of spindle rotate collar B clockwise allowing it to move back longitudi nally resetting feed mechanism LUBRICATION An automatic in line filter lubricator is highly recommended to increase tool life as well as keeping the tool in sustained operation The tool should be greased after every 40 hours of operation with a good 2 grade Moly grease using a low pressure grease gun BEFORE OPERATING OR SERVICING SERVICE INSTRUCTIONS DRILL HEAD DISASSEMBLY To disassemble the tool loosen the No 619421 lock nut and remove the motor unit Remove the nose Left Hand Threads then remove the drill chuck and adapter No 619400 Remove the No 619398 snap ring to allow the No 619389 spring cover and spring No 619394 to be slipped off Loosen the two screws No 617385 and remove the for ward stop collar Remove the No 619384 screw and rotate the No 619420 feed collar past the cam section and pull it off toward the front Remove the No 619465 set screws and with a face spanner wrench loosen but do not remove No 619614 bearing retainer Left Hand Threads Use an appro priate wrench on the flats on the forward end of the shaft housing and unscrew it from the No 619363
14. ial Deviation Neutral Ulnar Deviation Avoid awkward postures Keep wrists as straight as possible Interrupt work activities or rotate jobs to provide periods free from repetitive work motions Safety Labels The safety labels found on these tools are an essential part of this product Labels should not be removed Labels should be checked periodically for legibility Replace safety la bels when missing or when the information can no longer be read Safety labels should always be placed on any tool nose before installing on tool Replacement labels can be ordered using number below 202657 3 READ SAFETY RECOMMENDATIONS TOOL OPERATING INSTRUCTIONS OPERATING INSTRUCTIONS Three rotatable col lars A Band C control the ad justment and op eration ofthe drill Collar A Rear Stroke Adjust ment adjuststhe retracted position of the spindle ARROW INDICATES LOCKWISE ROTATION CollarBmanually starts forward motion of the spindle and manually retracts the spindle Collar C For ward 2 Ad justment limits forward motion of spindle and automatically retracts the spindle ADJUSTMENT AND OPERATION Lock unit into drill fixture Turn collar B clockwise disengag ing positive feed mechanism Rotate collar A counterclockwise advancing drill tip close to the work Start motor and rotate collar B counterclockwise maintain ing steady pressure on collar until feed mechanism is engaged startin
15. le Standard 617062 Return Stop Collar 619625 Spindle Spring 617383 Forward Stop Collar 619639 5400 Extension Spindle Standard 617385 Key Retainer Screw 619641 Spindle Needle Bearing 617399 Forward Stop Collar 619642 Grease Seal 619016 Retainer Ring 619742 Gear Housing 619072 Pinion Shaft Needle Bearing 619743 Gear Housing Screw 619118 Plug Small 619816 Worm Roller 619154 Spring Retainer Pin 622432 Shaft Housing 619211 Collar Retainer Key 812232 Bearing Retainer Ring 619363 Gear Body 812233 Bearing Retainer Ring 619365 5400 Drive Shaft Standard 833949 O Ring 2 3 8 x 2 3 4 619376 Plug Retainer Ring Large 842240 Driver Gear Key 619377 Cross Shaft Bearing 842274 Steel Ball 619378 Cross Shaft 842515 Spring 619379 Thrust Washer 843179 Bearing Retainer Ring 619380 Spacer 843791 Worm Retainer Ring 619381 Lead Screw Driver 844265 Steel Ball 619382 Pinion 8 Shaft 844833 Ball Bearing 619383 Needle Bearing 844966 Drive Shaft Bearing 619384 Collar Screw 845409 Helical Gear Pin 619385 Spring Retainer Screw 847095 Idler Gear Bearing 619387 Forward Stop 864471 Ball Bearing 619389 Spring Cover 865184 Gear Cover Screw 619390 Stop Collar Retainer Ring Optional Heavy Duty Gear Box PO DMO ND WOH NO sch sch ND sch WH SH sch sch sch sch ts Mi aN ND WOH NO AH ND sch AH NW aos sch sch a ech sch sch Q
16. oth are in good condi tion and securely tightened Lock Screws Tool Nose Standard Threaded Drill Bushing P Tooling Fixture Positive feed drills can exert high torques and high thrust loads If failure of the lock screws or drill bushing occurs the drill may suddenly spin and back away from the drill fixture Always remove chuck key or drill drift before 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 or a respirator Read the material safety data sheet of any cutting fluids or materials involved in the drilling process Some non ferrus metal chips or dusts are A CAUTION combustible Examples Aluminum magne sium Titanium and Zirconium See the material safety data sheets for combustibility of materials drilled Never collect spark generating material with combustible material Examples Collecting both steel and aluminum or steel and titanium Safety Recommendations Quackenbush drills are often used with lubri cant or cooling systems which must be properly maintained to avoid leakage Failure to do so can result in serious injuries from slipping on oily surfaces A CAUTION Slip and fall hazard Lubricant and coolant systems must be properly maintained to avoid leakage Hoses must be organized and care taken to
17. pa Operation 4 Service Manual COOPER Tools 823164 1 02 Quackenbush 158QGDB 5400 amp 5600 POSITIVE FEED DRILLS Recoules Operation Zone industrielle B P 28 Avenue Maurice Chevalier 77831 Ozoir la Ferriere Cedex France Houston Operation 7007 Pinemont Houston TX 77040 Safety Recommendations For your safety and the safety of others read and understand the safety recommendations and operating instructions before operating any drill motor 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 refer to Federal OSHA Regulations 29 Code of Federal Regulations Sec tion 1910 133 Eye and Face Protection and American National Standards Institute ANSI 787 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 protectors are required 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
18. screw driver Install extension spindle assembly in shaft housing and assemble to gear body sub assembly Tighten housing hand tight Install spindle spring in the shaft housing Press needle bearing No 619641 and seal No 619642 in bearing retainer No 619614 Install in the shaft housing hand tight Torque housing to 260 ft Ibs in gear body Torque bearing retainer to 250 ft Ibs Put in set screws No 619465 torque to 60 inch Ibs Install half nuts in shaft housing per drawing Compress half nuts and install cam collar No 619420 Install screw No 619384 in cam collar Install screw No 619385 spring No 842515 and ball No 842274 in forward stop collar Put stop No 619387 in the shaft housing and install collar with stop as shown in draw ing Install keys No 619211 and screws No 617385 Install spring No 619394 spring cover No 619389 and retainer No 619398 Install the correct motor gear on power unit and install power unit in gear housing No 619742 After the tool is assembled place a few drops of 10W oil In the air inlet before attaching the air hose This will insure immediate lubrication of all motor parts as soon as the air is applied 619376 619400 619404 E 61937 5 E 619398 619378 NOSE SEE PAGE 10 619381 619618 STANDARD S400 619639 5600 619624 HEAVY DUTY PBA Zaa 5400 614739 614635 619395 WORM WHEEL 5600
19. vidual components for inspection and replacement of parts if necessary POWER UNIT DISASSEMBLY To disassemble the motor unit clamp it in a vertical position in a soft jawed vise on the flats on the No 613275 motor housing and unscrew the internal gear No 613285 fromthe housing The planet cage No 613284 with attached com ponents can be removed through the rear of the internal gear Using a suitable bearing puller the rear planet bearing No 613281 can be removed Clamp the planet cage in a vise and unscrew the motor gear Left Hand Threads and remove the front planet bearing No 864471 and No 613278 planet cage washer This will allow the planet pins No 613279 and planet wheels No 613280 to removed for inspection To remove the motor unit invert the tool and loosen the No 613283 handle nut and remove the No 611233 handle assembly The complete motor can now be gently slipped out through the rear of the motor housing Clamp the exposed end of the rotor lightly in a soft jawed vise and unscrew the governor Left Hand Threads NOTE The govenor should not be disassembled as it may be ordered as a sub assembly only The rear bearing plate No 613241 cylinder No 613225 rotor No 613234 and rotor blades can now be removed Remove the No 843618 rotor bearing snap ring and remove the No 613274 rotor shaft When removing the No 613294 rotor bearing retainer from the front bearing plate it has LEF
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