Cub Cadet GSS-1291 User's Manual
Contents
1. Removal Note If tractor is not equipped with electric starting disregard the first three steps 1 Disconnect and remove the battery 2 Disconnect the armature and field wire from the generator 3 Disconnect the ignition wire at the coil 4 Disconnect the throttle and choke controls 5 Remove the steering wheel with a FEA 63296 lllust 5 Removing steering column assembly three jaw puller felt seal and upper steering column bearing 6 Disconnect the drag link from the steering arm 7 Remove the four cap screws secur ing the instrument panel to the frame and remove the instrument panel 8 Remove the two cap screws securing the steering column to its mounting bracket and remove the complete steering column assembly Illust 5 Disassembly 1 Remove the lock nut and washer from the lever and bolt assembly and re move the assembly Illust 6 2 Remove the bearing retainer from the bottom end of the steering column 3 Tapthe end of the steering cam against a wooden block to remove the cam assembly from the steering column 4 Remove the retaining rings holding the bearing races and ten ball bearings in each race to the steering cam a ESS Grease fitti ng Lever and bolt assembly FEA 63297 lllust 6 Lever and bolt assembly partially removed from the steering assembly Inspection and Repair Wash all parts in solvent and dry thor oughly 1 Inspect the2. 6 Continue reassembly in the reverse order of disassembly 7 After reassembly has been completed add oil of the correct type and amount as specified in the Operator s Manual HIN OA a SERVICE BULLETIN RECORD Important Information in this manual section is subject to change or supple menting from time to time as a result of field experience and engineering modifi cations As Service Bulletins are received record them on this page for handy reference whenever this manual is to be used Print entries in ink Bulletin Date Book No Issued No Topic or part of machine involved AEN INTERNATIONAL HARVESTER In serv ce GSS 1291 FEBRUARY 1961 PRINTED IN UNITED STATES OF AMERICA
3. wesan 8 a aes ie Pek e w ni FEA 634 Bee lllust 31 Checking preload on the differential bearings 1 If the transmission input shaft rear needle bearing is to be replaced make sure that the oil h le on outer race of bearing is lined up with the hole in transmission case on reassembly 2 After the differential has been reas sembled and before the transmission parts have been installed in the transmission case install the differential using the same shims that were removed and check the bearing preload as in Illust 31 A pull of one to four pounds will give the correct preload Add or remove shims until the correct pre load is obtained Note The differential case is installed with the gear to the right teeth facing left 3 Remove the differential and install the transmission countershaft with gears and spacers using the same shim pack that was removed 4 Reinstall the differential and check the tooth bearing pattern of the bevel gear and pinion as outlined below Refer to Ilust 32 Figure A Figure B FEA 63284 Figure C Figure D lllust 32 Tooth bearing patterns 5 Apply a thin coating of red lead and oil paste to the bevel pinion teeth faces and rotate the gears by hand Areas where lead is removed during rotation indicate actual points of tooth bearing Some slight springing or deflection of the mating gears occur under operating load since it is not practical
4. 18 Cross section of spring loaded clutch 16 FEA 63398 lllust 17 Check surfaces indicated for metal to metal 4 Check both bearings for pitting or contact Rear pressure plate shown Also roughness of operation Replace if nec check the front pressure plate essary Reassembly 5 Check the clutch linings to see if Reverse the order of disassembly Refer they are excessively worn Linings should to Illust 18 for the proper placement of be replaced when the surfaces indicated in part on the clutch shaft For clutch adjust Tllust 17 shows evidence of metal to metal ment refer to page 20 BRAKE Removal 1 Support the rear end of the tractor 2 Remove the cotter and the clevis pin Axle carrier y Brake assembly from the brake toggle assembly arm and the brake rod clevis mp vez 3 Remove the cap screws securing the carrier to the transmission case 4 Remove the carrier brake axle and wheel as a unit from the tractor Illust 19 lllust 20 Components of the left rear axle Disassembly Refer to Illust 20 1 Remove the rear axle snap ring 2 Remove rear axle collar 3 Remove the brake drum and lining assembly from the axle 4 Remove the rear axle carrier from the axle 5 Slide the brake band assembly from the brake drum 6 Remove the brake band pivot pin and anchor pin FEA 63400 Inspection and Repair lllust 19 Removing the axle axle carrier and brake assembly Great
5. N ee BE VE Se el eee Digg en nan i O ES ee eS nl Seno R ESAS SET B y slows aes kos a BS Se een a Da Sene de Inapectontand Repair eo aS a S areas E STE eee ad oa ao Siesta we seer Nene ea ewes ia lee Reassembly Adjustment Brake 0 2 E RA A AA AAA AA AAA A AA AA A n oe Se Me ene Remova A OES O RS EA E O A 6 S A SN A a e a 2e inspection and ke pare aa ca a o es a oe Reassembly E A E Pa A E E ATA EA las ete A A pe 25 ee RS a E RAR SAS ME ITA E awe Sek fa el See A AN 6 LEE E AE eee fe eal a eh AE A AE RA RO A AA RES A A AAA RT Qe ayeteke ER ESAS A eee RAS IS ERES AA DEA TAS E A E CA ES AS A Soe eh A MIC E Cee ee 8 EA eo eS Oe E AE A a A K L lt eee E A fates ls es E A AA RR A SAL RR oe Sele ec e 6 6 eee NT A E A SN ee es e ee ses ee ee ef es ee ss we 10 10 10 11 11 12 12 12 12 12 12 12 12 13 13 13 14 15 15 15 16 17 20 17 17 17 17 19 Reduction DPW Ce ok lala ewes buk ee O re Testa SEN En b GIRE E E A AE AE A A E E O a 5 Waar ok cee ne SNN ao SA Era Sewa Y D x ore rey ER Disa teen O SES SEK SE SEDEY A reda neck ran cen welar al c ye car SES y a Inspection and DB DD O R A A oS e R AA ar Reas semi Dl yn tea y rere see 6 Oe e43 idle 8 Pa a eee eee seers Rear AICS u gees ies Soe O ow Alk SA A ee ee SEK SAR ee re S Removal ARE siete 5 ee A eee eae ala So E fe
6. cam follower for wear and replace if necessary aring rac retainer rings lllust 7 Steering gear cam assembly and bearings The races indicated by pencil and arrows should be inspected for brinelling and roughness 2 Inspect the cam bearings and bear ing races for wear roughness or pitted balls Inspect the cam grooves for wear roughness or galling Illust 7 A worn cam will require replacement of the cam tube assembly 3 Check the steering gear cam hous ing for cracks and replace if necessary 4 Check the upper bearing for wear or roughness replace if necessary 11 Reassembly and Adjustment Reverse the order of disassembly pay ing particular attention to the following steps 1 When installing the cam in the steer ing housing be certain that the bearing caps do not bind in the steering housing 2 When installing the bearing retainer plug in the bottom of the steering housing tighten sufficiently to remove any end play and stake the retainer to prevent it from loosening up 3 Before installing the lever and bolt assembly fill the housing with grease Refer to the Operator s Manual for amount and type 4 When adjusting the cam follower be sure the steering gear is in its center posi tion To check this install the steering wheel temporarily and turn it from extreme left to right counting the number of turns then return the wheel one half this number to locate the mid position T
7. case set the case on a suitable work bench 2 Remove the three cap screws and bearing retainer from the differential on the left side of the transmission case Note When the retainers are removed keep the shims with each retainer to aid in reassembly 3 Remove the retainer from the right side of the transmission case 4 The differential can now be removed from the transmission Note The differential must be turned in a certain position before it can be removed from the transmission case Illust 28 5 Drive out the differential lock pin 6 Drive out the differential pinion shaft 7 Rotate the differential side gears 90 then the differential pinion gears and side gears can be removed Illust 29 8 If the differential drive gear needs to be replaced drive or press out the eight rivets Disassembly Transmission To service the transmission requires removing the differential and reduction drive housing as previously outlined 1 Remove the reduction driven gear and spacer from the transmission input shaft 24 FEA 63409 lllust 29 Differential partially disassembled 2 Remove the gear shift mechanism from the top of the transmission housing 3 Remove the two shifter fork set screws and drive the shifter rods out toward the front of the transmission y Poppet spring and ball lllust 30 One shifter rail removed SR Caution Cover the gear shift poppet NN ball hole in
8. following parts in sequence to the left rear axle a The carrier b The Woodruff key c The brake assembly d The collar e The snap ring 4 Install the carriers with the axles to their respective places on the transmission case and secure the carriers to the trans mission case with the cap screws DIFFERENTIAL AND TRANSMISSION To service the transmission only re quires removing the reduction drive hous ing and the rear axle assemblies as previ ously outlined Also the differential has to be removed before the transmission can be serviced The differential can be removed 22 without disassembly of the transmission but when checking preload on the differential bearings the transmission countershaft should be removed Therefore the differ ential and transmission are covered to gether Refer to Illust 27 Second and third n input shaft First and reverse sliding gear Inner bearing race RE El el ETA Reduction drive shaft oil seal sha e a S E 27m a 8 a 3 v a lo Z v E pz 2 en a UE eu 2 23 E Bo 2 2 amp 5E i oc 3 ae t on E 2 e 2 a FEB 14010 lllust 27 Cross section of transmission differential and reduction drive Removal and Disassembly Differential 1 After the reduction drive housing and the rear axle carriers have been removed from the transmission
9. location di o ess Diameter at rear bearing location lt i lt araz see sN sa ma Transmission input shaft Diameter at tront bearing location siete b sa k Diameter at rear bearing location 4 be sk sa k Se Bee T SAS iz Reverse idler gear bushing running clearance on shaft Reverse idler gear shaft diameter Bearings Countershaft front Counter shaftereaw i e Kir Rel JS R K o a DISE GK ees Transmission input shali front Sio aese rire n K S SERDA wee Transmission input shaft rear Countershaft gear and bearing spacer lengths 1 Between front bearing and 3rd speed driven gear 2 Between 3rd speed driven gear and 2nd speed driven gear 3 Between 2nd speed driven gear and lst speed driven gear 4 Between lst speed driven gear and reverse driven gear 5 Between reverse driven gear and rear bearing ee E A 20n AE E A A A w ya xan Keyn e Se Sal n 4 e Ja Yan Ca Sen c Ten 8 AA TE A sos dan e ea cee oe O we E A AA ee ee ES N Differential Number of pinions A CaSe Carrier a A a ee eee Bearnes Wo0 ates HEE eo a a A ee as Bearing adjustment pre load AdJastinp shims so wc nS DEK KES oe e e e lt fa T end VEK SNR S e ens Hub diameter for bearineslocali on o o e ios e ata ae Bore in carrier case for pinion shaft Pinion shaft diameter Pinions number of teeth Pinion to shat Clearance Z3 20 asa cla lavan wa
10. te ey ee YEE e Ball Front Wheels Bearing ED e AAA AA Gea Gees al lt EDE eee Plain bushing Length a SARDA E a Gaye AS ated ait 1 156 010 in TES ita ors ee W SERAD een A SS eae ee a So ere 880 to 885 in OO be ee eee Seen ee ee A RN es os ARO ae SG E 1 380 to 1 383 in Bore tor Bushing er x oa ie ere ees ao iy Sal sate wk a A EN 1 315 to 1 378 in DOG STIR ssc cma eee oo wos ie GS IA ire KATA EV oe eae eh VR SA AL a ee 030 to 130 in Camber angle ou esoo css AK e e dire ha d E Ar N DA NN ae eae 2 1 2 A A O BRE 0 Torque Front wheel retaining cap screw ERA eR a ee 56 to 63 ft lbs Front Axle BRENIG BD xan rs de SNS A LT aa rl SO Heba BOO Pivot tube DAR PER aise es os a EE A A ee SAL SI 2 185 to 2 790 in LED ee A See Picea eee etl See E E ee eee ND SE N reer 580 to 622 in ODA ND ETE E KED versa wt oa05to o40 Tn A A A O O A tase 842 to 844 in Bore for steering knuckle NE Ran O Y 876 to 878 in Steering knuckle O DS Las ooo DE AE 873 to 874 in Tire Size PROM aso n eRe oe Se Si BEREK SR DEN We RON See An Ya Tene n ne 4 BO 3008 Reat o curpa N 3 eee E RS PO eee dey eV YEN 6 00 12 Clutch Double plate dry disc spring loaded 2 sz ek wc ld 4 5 in Clutch shaft Length overall ee Ee Ppa ae nere gn Ke are DEDOS Gn OD ceexcept probando Ta AA e 623 toT 6251n O SE LE quot ends der ES a co 310 to 3 5 1m I D for spirol pi
11. the field is not a factor in checking a mechanism for correct speci fications Field operation naturally will be more difficult but a tractor checked under the test conditions listed below will have correct steering efficiency under field con ditions l Lubricate the entire steering mecha nism 2 Have the tractor on a smooth hard 3 Check for correct tire inflation 4 Make sure toe in is properly adjusted If after establishing the above test con ditions the steering problem still exists systematically check all points of the steer ing mechanism for fit alignment and ad justment as indicated by the following check list 1 Proper location of steering arms and knuckle arms 2 Wear on pivot pins with tractor jacked up 3 Bent or sprung linkage 4 Fit and alignment of axle with axle extensions 5 Ball bracket tightness and fit with the ball 6 Gear backlash with steering gear in mid position All of the above items should be checked before you remove the steering gear from the tractor Disassembly inspection and repair of the various parts follow if your preliminary inspection indicates need for overhaul For details refer to the appli cable listings on the contents page of this manual Clutch and Brake The clutch is a four and one half inch spring loaded double plate dry disc type and is connected to the engine by a V belt The brake is a double acting contracting ba
12. the transmission case as i the rods are being removed This is to prevent the ball and spring from flying out and possibly injuring the serviceman Illust 30 4 Remove the three cap screws secur ing the transmission input shaft retainer to the transmission 5 Pull the transmission input shaft for ward and out of the transmission and remove the first and reverse speed gear and the second and third speed gear from the trans mission 6 Remove the cotter pin and counter shaft nut Note Save the shims to aid in reassem bly 7 With a soft driver drive the counter shaft to the rear of the transmission noting the sequence of the gears and spacers on the counter shaft 8 Remove the cap screw securing the reverse idler gear shaft in the transmission After the cap screw has been removed the shaft can be removed by hand Refer to Specifications for reverse idler shaft O D and the reverse idler shaft bushing I D 25 Inspection and Repair Differential and Transmission 1 Wash all parts in cleaning solvent and dry with compressed air 2 Check bearings before removing them from gear case Replace as necessary 3 Check gears and shafts for wear and burrs Remove any burrs with a fine stone Reassembly Differential and Transmission For reassembly reverse the order of dis assembly paying particular attention to the following steps Refer to Illust 27 for proper placement of parts en H
13. tractor REAR AXLES Removal 1 Remove the cotter and clevis pin from the brake toggle assembly on the left rear axle 2 Support the rear of the tractor and remove the cap screws securing the axle carriers to the transmission case 3 Remove the carriers with the axles from the transmission case 4 To remove the left axle from the axle carrier proceed as follows a Remove the axle shaft snap ring b Remove the brake assembly and collar c Remove the Woodruff key d Remove the axle from the carrier 5 To remove the right axle from the carrier remove the snap ring and collar then remove the axle from the axle carrier Inspection and Repair 1 Wash the axle shafts carriers and bushings with a cleaning solvent and dry with compressed air 2 Check the axles and axle bushings for excessive wear Refer to specifications for size of new parts and replace as nec essary 3 Check the ends of axle shaft splines for burrs and excessive wear Remove burrs with a fine stone 4 Inspect the carriers for cracks re place if necessary 5 Inspect each axle shaft oil seal lo cated in differential bearing retainer Re place as necessary Reassembly 1 If the axle bushings were removed install the new bushings Note Be certain that the hole in the bushing lines up with the grease hole in the axle carriers 2 Install the carrier collar and snap ring to the right rear axle 3 Install the
14. Form GSS 1291 International Cub Cadet Tractor Chassis File in Tractor Service Manual 18 0 NORTH MICHIGAN AVE CHICAGO 1 ILLINOIS CONTENTS ALY CAUCE LON cote a te os a se a es ee ee en TRAK ikan C nera Ini GE ma LO soe ta fee ee SS ee ee Se S ee eee Eactors Atte Clin Ge Ste P RA chr ess ERE ARE Svar BU DS eee eee SS ys EA See eas SECT otek oes a ees ee ek E ee ee ee GS ee ay ee ee oS C RR SEE SO AER Sy TRE AE ARA TEDE EE a A SBS ae I veren E oe SE ROE JT E ERDO a ewe an ey ee A Ns fe Pet nana Eya Re Ck pe faces bats ee eR a ES Ee WES iuteb ARO KE R SOR KESE ee A SES Some Se See Se ee eee es Re GCE Tes Tel Vee este erect int Soa Ae ea es ES eee aie ine e Re ee eee AS ES e See PON vane ia K Sid KE SE n n KK yeye Kn a Re Ag Sa ae ee o A ene Ser A a EES os EK HEKE SS a oP Se Oe KE KEKE KET Rean A KE Sile Re A A A A ee ene BPCCTICA IE y Grn E O E e Ww ooo ao J j pb amp Steering Assembly EU GEHO Vl Esl e av can e DANS ESA SE SS KURE YE PY N E E DD SIN Ren A EK KEN SEKAN a Disassembly Inspection and Repair Reassembly and Adjustment Front Wheels and Bushings Removal and Disassembly Inspection and Repair E O SE ek RE ET er on AC Rn O dD E Installation EAS A RM aa ee See Steering Knuckle Removal Removal of Inspection a Reassembly Front Ax DS au sy MA SEMO O Oe eee ee O HAREPAN o o e cana IS bo koe A a le al Ca Gee Tes fee Dn eee ee ee ten ee eee iw eee RD SE T
15. ake must be fully engaged when pedal arm reaches this position 2 3 16 inch minimum ta FEA 63405 lllust 24 Brake and clutch adjustment diagram 19 Installation l Install the carrier brake axle and wheel as a unit to the transmission case Be careful not to damage the oil seal in the differential bearing retainer 2 Secure the axle carrier to the trans mission case with the cap screws 3 Install the clevis pin and cotter pin to the brake rod clevis and toggle assembly arm Clutch and Brake Adjustment The clutch and brake are both operated by the same pedal therefore care must be taken to maintain a neutral zone so that the clutch is disengaged when the brake is ap plied Adjusting the Clutch Refer to Illust 24 It is important that a clearance of 005 to 030 inch be maintained between the lug on the clutch release collar and the clutch operating yoke In order to maintain this clearance the pedal should not have a free movement of more than 3 16 inch When it is necessary to adjust the clutch turn the clevis on the clutch operating rod in or out as required to get the above measurement Adjusting the Brake Refer to Illust 24 The brake band should take hold on the brake drum when the brake pedal arm is pressed down within a maximum distance of 5 8 inch and a minimum distance of 3 16 inch above the top of the pedal stop on the left foot support To adjust the brake turn the cle
16. e zerey a ke 0016 to 0053 in Driven reduction gear spacer MESE e s n A AN TR SA So E AA PRES Sera 1 144 010 in OSS eas oi eo seer ee ae Ce eee ere ae BON tas ee ae ae Bebe copes Wee Le oa 59 3411 Wales ores oo N SS A ee Oe ee rene eS Ena T 979 to 986 in Rear Axle Carrier EVD UI A A gi SENA Se CES SS Sis Eos BEERS OS ee Takk One piece cast grey iron Bore for axle bushing SS e mee ee ete 1 1245 to 1 1255 in Rear Axle Bushing DE LO LEN a Sol ASA AAA ee AY SEREN Steel back bronze lining j PO a r E e e 740 to 760 in WIRE assembly A eh ee AA Ae ds 1 001 to 1 004 in Rear Axles Diameter at bushing 1OCcati n oometasnos HH eee SEN SEK ee 9970 to 1 0000 in Torque Rear wheel retaining cap screws 56 to 63 ft lbs Transmission Gears OWEN a S EYO KENA Ker eee Gears Teverse set in DAS A A oa as ao e YB ease Ground speeds full load at 3600 rpm 6 12 rear tires Eet Gear os pa So SEE NAS SUS AA DER O AAC SEET E Wa PUCWOTS aa Case Transmission Differential A ee Die es e Bore for front transmission input shaft bearing Bore for rear transmission input shaft bearing Countershaft front bearing retainer O D Bore for front countershaft bearing retainer Bore in retainer for bearing Bore for rear countershaft bearing e e Countershaft with integral pinion Diameter at front bearing
17. eee KOK Bore in carrier case for side gear hub Side gears 2 number of teeth Side gear hub diameter Bevel gear and pinion backlash Adjustoaent by SHNS SS coer o aa are D eee eee Bevel gear location i a Pinion location Sia a eel ela es e AAA AAA A IN IN A a pe as IR lie aaa a AS A eza ee CSEZRIYA ZA D2KE RAS a ace A IRA JIN BE BE VE E E O va SEK SINO ek bev s n Gear reduction ratio Differential bearing retainer O D attransmission case bore location A CIS A O n a a AECI ee eS 9 Selective sliding spur gear 3 1 2 288 mph 3 051 mph 6 864 mph 2 550 mph One piece cast iron 1 8503 to 1 8509 in IZA Zo osa Bie EB TO Le VO an 2 2195 to 2 2215211 2 0470 to 2 0478 in 2 4392 to 2 4399 in 7873 to 7876 in 1 1803 to 1 1808 in 9842 to 9846 in 8095 to 8099 in 0020 to 0035 in 610 to 611 in Ball Roller Ball Needle roller 848 to 852 in 1 310 to 1 314 in 310 to 314 in 686 to 690 in 690 to 694 in Bevel gears and pinions 2 One piece cast iron Tapered roller 1 5 to 8 0 in lbs 004 007 015 030in I 375 to 1237640 6875 to 6880 in 6870 to 6875 in 10 0025 to 0050 in 1 252 to 1 254 in 16 1 248 to 1 250 in 003 to 005 in 004 007 015 030 in On differential case Integral partoftrans mission countershaft 10 46 3 372 to 3 374 in STEERING ASSEMBLY
18. ek fan SAS Ba Pune aa eee SF ees eee Rees ute Inspection and she pal tise crisi tanh kra A a 7 e gt ven es eR SS en We Reascsem bly an ne E SN E GAY Kek ARE WEKE LEY SENE LE KE W a SOS RAND A Si VE U ene ej Datferentist and Prins mission 264 NA 22 F 8 AL EE IDOL ET A Remora and Disassembly Diterentrall M e axe k ana aos J AL ae ee e RS Pibe 5Se rabia eros isso a a Sa Oe a a Eta Ar c a ey Ne E E lnspechiGn and Ropa SERAY oe DZ Si n DESE NS DE DOS ST YD FUCA OS eco ye tt STAR K n A A SIR SI SER at nc Sa a EN eee INTRODUCTION This manual covers the servicing pro cedures of all the chassis components of the International Cub Cadet tractor The engine fuel system and ignition system are covered in Blue Ribbon Service Man ual GSS 1292 also the electrical system when so equipped 20 20 20 20 20 21 21 22 22 22 22 24 24 24 25 25 GENERAL INFORMATION The Cub Cadet Illust 1 is powered by a seven horsepower four cycle gasoline air cooled engine The tractor is driven by a V belt which connects the engine to a friction type clutch The reduction drive connecting the clutch to the transmission transmits power to the rear wheels through the transmission and differential The transmission provides three speeds forward and one reverse Tractors equipped with electric starting have a combination generator and cranking motor With this type of unit it is unnec
19. essary to polarize the electrical system whenever a component is replaced as the system is automatically polarized when the starter button is pressed Factors Affecting Steering Several things are built into the tractor to make steering easier Some of them are not adjustable you can do nothing about them Understanding the design will how ever help you to analyze causes of steering problems The following brief explanations and sketches illustrate these things FEA 63294 lllust 1 Left side view pa Vertical BZ Center line of pivot pin Camber angle Ground FEA 45546 Illust 2 Built in camber angle as seen from the front of the tractor Caster The caster angle on this tractor is zero Camber The inclination of the front wheels out ward from a vertical line through the point of ground contact is called camber The wheels are farther apart at the top than at the bottom The sketch Illust 2 shows an ideal condition where the center line of the steering knuckle pivot pin passes through the point of ground contact Actually such ideal condition is not attained because of tire crush and other factors Without cam ber angle the wheels would roll in an arc when the pivot pin turned Correct camber angle is 2 1 2 degrees Camber angle can be corrected in the field only by locating and replacing bent parts A suggested method of checking camber is shown in Illust 3 Tools re qui
20. est braking efficiency can be ob 17 tained only when the maximum amount of friction area makes contact during the braking action For this reason braking surfaces that are rust pitted have lost some braking efficiency the pitted area will not contact the friction material of the brake lining The amount of efficiency lost will depend on the extent of the pitting Grooved brake lining caused by rough or rust encrusted brake surfaces also can result in a great reduction in the lining area that contacts the brake surface In spect thoroughly and take corrective ac tion as necessary using the following steps and procedures as your guide 1 Wash all parts except the brake lining in a clean solvent and dry out with com pressed air 2 Inspect the brake lining and brake drum for excessive grooving rust or rust pitting Clean all traces of rust from the brake surface with a wire brush and emery cloth Excessively grooved or pitted lining and brake drums should be discarded 3 Check keyway in the rear axle by in serting a new key If the fit is loose the axle must be replaced Snap ring groove lllust 21 Rear axle 18 FEA 63403 gt 22 Rear axle carrier installed on axle h gt ES lilust Brake hub Anchor pin Toggle assembly lt Lefi hand axle carrier 43 ak FEA 63404 lllust 23 Brake drum and brake lining assembly partially insta
21. f the tractor and remove the support under the panel housing support 2 Apply grease liberally to the steer ing knuckle pivot pin and install the pin in the axle bore 14 FEA azaya lllust 13 Checking steering knuckle pivot pins with a micrometer 3 Install the steering knuckle collar 4 Install the spirol pin through the col lar and the pivot pin 5 Install the tie rod ball joint assem blies to the steering knuckle arms and se cure the assemblies with the hex nuts 6 Right hand steering knuckle only Install the drag link ball joint assembly to the steering knuckle arm as shown in Ilust 9 7 Install the wheels on the axle spin dles and secure with cap screws and washers 8 Remove the jack or support from the tractor CLUTCH MER Clutch operating yoke Brake operating rod FEA 63395 Illust 14 View of underside of tractor showing clutch disconnect points Removal Refer to Illust 14 1 Remove the three bolts A from the drive shaft bearing support remove the cotter pin and pin B and the two cap screws MEL 2 Remove the drive belt from the engine pulley then slide the complete unit forward until the rear end of the clutch shaft is out of its pilot hole in the reduction drive shaft coupling Then lower the complete unit until it can be removed from the tractor Disassembly 1 Loosen the set screw in the bearing collar remove the collar and clutch shaft beari
22. kle assembly 6 Remove the pivot pin from the axle imest 11 Inspection and Repair All parts of the front axle assembly should be visually inspected for proper shape and alignment This may be diffi cult to do unless new parts are available for comparison However since both the right and left sides of the assembly are symmetrical some comparison is possible and most distortion can be seen Bent parts frequently effect the steering geometry and hard steering results 1 Inspect all parts closely for wear or 13 FEA 63391 lllust 10 Axle pivot pin nut Pivot pin bolt ner l Hust 11 Pivot pin components breaks Refer to Specifications for size of new parts 2 Check the steering knuckle pivot pin bearing surfaces as shown in Illust 12 Also inspect the mating bearing surfaces of the steering knuckle pivot pin as shown in Illust 13 3 Inspect the front axle pivot pin bear ing surface using a telescoping gauge 4 Inspect the tie rod and drag link rod ball joint for wear or breaks Reassembly Front Axle 1 Apply grease liberally to the pivot pin and the pivot pin bearing surface in the axle lllust 12 Checking steering knuckle pivot pin bearing surface with a telescoping gauge 2 Install the pivot pin in the axle and install the axle to the tractor chassis 3 Install the pivot pin bolt lockwash er and hex nut Steering Knuckles l Place a jack or support at the front end o
23. lled 4 Tnspect the key removed from the as brake band pivot pin and the brake band sembly for signs of wear Replace if in anchor pin doubt 5 Inspect the toggle assembly anchor pin and pivot pin Replace if necessary 6 Inspect the rear axle spline and snap 3 Install the rear axle carrier to the ring groove for wear Ilust 21 axle Illust 22 2 Install the brake lining assembly to the brake drum 7 Inspect the rear axle carrier and axle bushing for wear Replace if necessary 4 Install the Woodruff key to the axle 5 Install the brake deni and brake lin Reassembly ing assembly to the axle Illust 23 1 If they were removed install the 6 Install the axle collar and snap ring The clutch release collar should be against the thrust bearing when the dutch is being adjusted 005 inch 030 inch Clutch operating k l To adjust the brake Si use the clevis at the other end of this brake operating rod Clutch disengaged zone Clutch engaged tractor must be free to coast Top surface of Neutral zone Seke foot pad Both brake and ae ES PA are disengaged when pedal is in this zone Braking zone Sse A A Brake must be engaged F Kz when pedal is in this zone Brake must be capable of sliding rear wheel when fully engaged Free movement 3 16 inch Pedal return stop Brake must not engage until pedal arm reaches this position 5 8 inch maximum Br
24. n at rear of shaft ard hs Setanta ee OK DK CK sates 124 to 129 in I D for two spirol pins at front of shaft rrr A 185 to 192 in Clutch shaft sleeve engines 2 sasha sa W ASANE KE Ke EKE tyr E AS A dre MN 1 500 in PAD O DO aa de os AD teres ke 1e2 A e E Wn di ae 631 to 635 in OND catesimial eid 08 aa SEE a SES Se RAE NY Ge W seat 997 to 999 in OD sat large end QE NE ROM SEA YEKA ites ey 1s as DIE OO in o ai A SEE YE SES E A SIKE So Te tea ara te te S SE SK TAK 8 18 030 in Clutch release collar LD ptsmallcends os 45 2 s ea e Ke tes ALEK teat bait Cees ees a cata 1 1240 to 1 1255 in ToD darge end A Sy acres eh carer E ed a raza kS 00d les SU an Length overall OS A SA A As 2335955500301385 Release bushing Length QA SERAD lt 2i Se KA Os E eo SUS Sa eken AA 145 to 755 1n ED reset eet TOR A y 70 jk ER D ROKE wee aliens 1 000 to 1 001 in DI PEI SB on Ree Rene ee ae z SE De eee 1 127 o L 128 in Pressure plate carrier Number of teeth sco ss naya A War E ON kw Ek Sak O derka az n 10 Pressure angle i ses srs Se er eee SEKAN ESA e bases meee US DIDAN St aa sat Pe eee ee Ce ee a D EO JO20 arr Wid tbs as of Sates Nes usin on A E yere re era tine ES E Siar ee A 500 030 in Bore or Spirol pin eses sa reas Seale eee ws WD Ka e DE 200 to 205 an ewr mer pulley See ariel A S a DOLO ES SOTO IS dar D ED SA A XEN NN E N ee a re se oe en
25. n to align the groove in the bushing with the grease fitting Installation Installation is the reverse of removal After installation grease the wheels through the grease fitting FRONT AXLE Steering Knuckle Removal 1 Place a jack or support at the front end of the tractor chassis 2 Remove the cap screw and washer securing the wheel to the axle spindle and remove the wheel assembly 3 Remove the hex nuts securing the tie rod ball joint assemblies to each axle steering arm lIllusts 8 and 9 4 Disconnect the tie rod ball joint from the axle steering knuckle arms and remove the tie rod 5 Right front steering knuckle only Remove the hex nut securing the drag link ball joint Illust 9 to the steering knuckle arm and disconnect the ball joint from the arm 12 6 Drive out the spirol pin Illusts 8 and 9 from the steering knuckle collars and remove the knuckles from the axle Removal of Front Axle 1 Remove the four cap screws secur ing the shield if equipped to the chassis and remove 2 Place a support under the tractor frame behind the front axle 3 Remove the axle pivot pin nut and lockwasher Illust 10 4 Remove the axle pivot pin bolt Hirst 11 5 Remove the axle and pivot pin from the chassis Tie rod Ball joint nut FEA 63299 Illust 8 Components of the left front axle steering knuckle assembly Illust 9 Components of the right front axle steering knuc
26. nd located on the left rear axle The clutch and brake are operated by the same foot control located on the left side of the tractor Reduction Drive The reduction drive is located ahead of the transmission case The reduction drive shaft is supported by ball and needle bear ings Transmission Sliding spur gears are positioned on a one piece transmission input shaft and mate with spur gears mounted on a one piece countershaft with bevel pinion Shafts are mounted in ball roller and needle bearings Gears have crowned induction hardened teeth with rounded edges for ease of shifting and long life Reverse idler gear is mount ed on a separate shaft Differential Two pinions and two side gears of car burized hardened alloy steel are mounted on differential and pinion shafts in a one piece cast iron carrier case The bevel gear is riveted to this same case Entire carrier case is mounted in tapered roller bearings which are pre loaded to reduce de flection of the bevel gear when placed under a load Rear Axles The rear axle shafts are splined on their inner end where they are supported and driven by the differential side gears The outer end is supported by a bronze bushing located in the axle carrier A flange is welded to the outer end to receive the rear wheels SPECIFICATIONS Steering SEYDO es saro yaya Mer SANA ke ERK ZERE HA NNN eee aed ara Cam and lever Bearings os Vee se A r n eS es Sr
27. ng support from the shaft Illust 15 2 Place the shaft assembly in a press Using slotted washer FES 10 3 Illust 16 compress the clutch loading spring until 15 Bearing collar lllust 15 Bearing support and collar removed from the clutch shaft the 1 8 x 7 8 inch spirol pin can be driven out Release the press slowly until the clutch loading spring is fully expanded 3 Slide the rear pressure plate to the rear of the clutch shaft and drive out the remaining two spirol pins All parts can now be removed from the clutch shaft Clurch shaft pu Hey E Rear pressure plate Point of contact contact Inspection and Repair Refer to specifications for size of new parts 1 Wash all parts except the clutch linings in cleaning solvent and dry with compressed air 2 Check the clutch loading and clutch release springs to see if they are within specifications 3 Check the bushings to see if they lllust 16 Clutch loading spring compressed A Gen or our of Fount Pressure plate carrier 2 Clutch shaft bearing Clutch shaft collar i Clutch cushioning spring Release collar bushing Plain washer 21 32 ID x 1 OD x 1 8 thick TA NS Clutch release bearing ae Clutch loading spring Spirol pin Retaining ister Geiser shaft release collar Spirol pin Rear pressure plate Clutch linings Clutch shaft pulley FEA 63399 lllust
28. or necessary to make their mounting assemblies absolutely rigid allowance is made in gear design for displacement under operating loads to prevent concentrating the load on the tooth edges Therefore in our hand rotated testing and under very light operating loads we will find an acceptable area of tooth contact will be localized toward the toe small end of the tooth as shown in Figure B Then when deflection occurs under application of greater operating load the area of tooth contact will extend toward the heel large end of the tooth as shown in Figure A This desirable toe bearing secured un der hand rotated no load test as shown in Figure B is the result of adjusting the bevel gear lateral position within the specified range of 003 to 005 backlash The position of the tooth bearing from the base to the peak of the tooth is control led by lateral position of the pinion Given a low bearing on the bevel pinion tooth as shown in Figure C the pinion must be ad justed to mesh deeper into the bevel gear to center the area of contact between the base and peak of the tooth Given a high bearing on the bevel pinion tooth as shown in Fig ure D the pinion must be adjusted to mesh more shallow into the bevel gear for cor rection Where it is found necessary to move the pinion in or out of mesh to cor rect base to peak tooth bearing the bevel gear must also be shifted laterally in order to maintain the specified backlash
29. red are a carpenter s square 16 x 24 a metal straight edge 30 long a 6 scale and a jack Measurements should always be taken with the wheels in the straight ahead position Jack up the tractor and lower until both tires just touch a smooth straight board without any crushing Straight flat piece 30 long bar stock or long spirit level 2a S16 Steel Square Measure from end of 16 leg see X in table Front tires just 2 A ase long touching surface smooth and straight FEA 45591 lllust 3 Method of checking front wheel camber When measurement X is Camber Angle 11 16 31 32 Take average of three measure ments on each wheel rotating wheel 120 each time Toe in The front wheels are adjusted so that they are closer together at the front than at the rear The amount of toe in can be measured as shown in Illust 4 A minus B must be 030 to 130 inches It is impor tant to measure the same point at hub height in both the rear and forward posi tions This will eliminate any error caused by tire bulges or bent rims Toe in is al ways checked when the wheels are ina straight ahead position Preliminary Check up Whenever confronted with a problem of hard steering establish test conditions un der which you can check steering operation The fact that these test operating conditions Front FEA 63295 lllust 4 Front wheel toe in as seen from above are seldom found in
30. t out of the reduction drive housing Caution The oil seal and snap ring must be removed before pressing out the reduc tion drive shaft 3 If necessary to remove the front re duction drive shaft bearing proceed as follows a Remove the internal snap ring lllust 26 Removing the reduction drive shaft snap ring b Using a slide hammer and bearing puller remove the bearing 21 4 The reduction drive shaft rear bear ing can also be removed by using a slide hammer Inspection and Repair 1 Wash all parts in a cleaning solvent and dry with compressed air 2 Inspect the bearings for roughness of operation pitted condition or flat spots Replace bearings if necessary Note All bearings that are to be re used should be oiled and wrapped in oilproof paper until ready for reassembly 3 Check the reduction drive shaft for excessive wear Refer to specifications for size of a new shaft Reassembly Caution Make sure both snap rings have been installed before replacing the drive shaft oil seal 1 If it was removed install the reduc tion drive shaft rear bearing 2 Ifitwas removed install the reduc tion drive shaft front bearing and the in ternal snap ring 3 Usinga press install the reduction drive shaft 4 Install the reduction drive shaft snap ring 5 Install the reduction drive shaft oil seal 6 Mount the reduction drive housing unit to the transmission case and recouple the
31. urn the cam follower screw in until zero backlash is ob tained and tighten the lock nut 5 Remove the steering wheel and in stall the unit on the tractor Continue re assembly in the reverse order of disas sembly 6 The electrical system if equipped does not have to be polarized since the system is automatically polarized when the starter button is pressed FRONT WHEELS AND BUSHINGS Removal and Disassembly 1 Block the rear wheels jack up the front end of the tractor and support it on a suitable jack stand 2 Thoroughly clean the exterior of the wheel and wheel hub 3 Remove the cap screw and washer securing the front wheel and hub to the axle 4 Remove the wheel wheel hub and wheel bushings All of these come off as an assembly without the use of a puller 5 Wash the bushing bore in a clean solvent and dry with compressed air 6 If it is necessary the wheel bush ings can be driven out by using a hammer and a suitable drift punch Drive from the inside toward the outside Inspection and Repair 1 Check the wheel bushing diameter with a telescoping gauge and a micrometer Refer to specifications for size of new part 2 Check the front axle with a microm eter Refer to specifications for size of new part Replace if necessary Reassembly If they were removed install the front wheel bushings Press in the bushings un til the flange on the bushing is against the wheel hub Note Be certai
32. vis on the brake operating rod at the brake drum in or out as required to get this measure ment Note 1 In order to maintain a definite neutral zone between disengagement of the clutch and engagement of the brake be sure the brake does not take hold before the ped al arm is within the maximum distance of 5 8 inch above the foot support pedal stop Note 2 Sometimes itis difficult to obtain a neutral position until the brake has been applied a few times REDUCTION DRIVE Removal To service the reduction drive requires splitting the tractor just forward of the re duction drive housing 1 Drain the oil from the transmission 2 Disconnect the brake rod from the brake actuating arm on the left side of the transmission 3 Disconnect the flexible coupling from the reduction drive yoke 4 Support the front of the tractor with a suitable stand Support the rear section of the tractor at the forward part of the transmission 5 Remove the four cap screws securing the reduction drive housing to the front part of the tractor and roll the rear section away from the front section 20 6 Remove the four cap screws securing the reduction drive housing to the transmis sion and remove the reduction drive com plete Must 25 Disassembly 1 Pry out the reduction shaft oil seal with a screwdriver 2 Remove the reduction drive shaft snap ring Illust 26 Using a hydraulic press press the reduction drive shaf
33. yg K ln n Clutch shaft pulley bushing By Oakes es ke ebro ess DN ip cere CES AS EE SES NP V Oil lite DAA c re yene QE A IA A EO E SR E GRANE A a 877 to 878 in UB N ns ems ais IN PN al Sito Sie A a a e A aE ee J626 to 627 in Memoirs ss ED So el See SO QUN A eee Kure See les ee 870 to 880 in Clutch loading spring O a RA E ee Oe We E wee aG 6 70 in KE SE Ten GEDA ng aie tet Sib Gossow bie a Soyo Pe KEKE eee ee 5 18 in mest Tore Atte oan er aes ame SAN E eos Sn SUS N epee RA ss 236 36 lbs Clutch release spring Ere GELE BO thes e Stee a E A le Aa i Bee E e 442 in Best length 4 suc 2 S ere Gatch A Re N NE RE RE 370 in Test Toad p eps es ata a me tot ars Pee a YALA YEK AS 50 7 lbs rakata ia AE RA o A E ee ae External contracting Reduction Drive Shaft and gear Mengeti everall Sp na rir a2 ZA SEK AGS RES Ses a 353480 3 915 010 in Shaft diameter at oil seal surface AS TADA ADO LO Ai Shaft diameter at front bearing surface der seyan xa 7873 to 7878 in Shaft diameter at rear bearing surface ee a KAN 8745 to 8750 in Number of teeth A E ees ow we ese ee 2 Se T c 13 Backlach with mate ORT Ss ki wis kl ee eben ce Se Jee Ea 0016 to 0053 in Driven reduction gear O D A Seman IN eee Sel Sie SE K NANDIN eae ISE k 4 745 to 4 750 in Number of teeth rw 29 See Ce EN L er er eee e 56 Backlash with mating pear ooe oer he e de Ta ee ew e
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