CASE 2090 Tractor Workshop Service Manual for Repair

SHOP MANUAL CASE/INTERNATIONAL 2090 MODELS ^ 2290 2390 2590 2094 2294 2394 2594 IDENTIFICATION Thictor model number and Identification seriai number are iocated on a piate on right fender of tractors not equipped with a cab, or on a piate on upper right of cab interior on tractors so equipped. Cab seriai number is iocated on a piate on upper right of cab interior. Engine seriai number is iocated on a piate on right rear of cyiinder block. Ihinsmission seriai number is on right side of transmission housing. On modeis so equipped, front-wheei drive seriai number is iocated on a piate on rear of front drive axie housing. INDEX (By Starting Paragraph) 2090, 2094 AXLE, FRONT (TWO WHEEL DRIVE) Axle Main Member 5,6 Front Support v .^^. Spindles 2 Tie Rod & Tbe-In ,4 Wheel Bearings 1 BRAKES Bleed System 185 Brake Cylinders 192 Linkage Adjustment 183,184 Power Brake Valve 182 CAB Remove & Reinstall 277 CLUTCH Master Clutch 98 Tbrque Umiter Clutch 101 COOLING SYSTEM Radiator 90 Thermostats 91 Water Pump 92 FUEL SYSTEM Bleeding 78 Filters & Lines 71 Iryection Pump 74 Iiyector Nozzle 78 Timing 75 DIFFERENTIAL (REAR) Overhaul 169 Remove & Reinstall 168 2290, 2294 5,6 1 185 192 183,184 182 Models 2390, 2394 8 8 2 ..4 1 186 193 183,184 182 2590, 2594 6 8 2 4 1 185 193 183,184 182 277 277 277 98 101 90 91 92 73 71 74 78 75 169 168 • • • 101 90 91 m 73 71 74 78 7B 172 171 * * * 101 • ' • ' , ' • 90 '' 91 92 73 71 74 78 75 172 171

INDEX CONT. DIFFERENTIAL LOCK Control Valve ELECTRICAL SYSTEM Alternator & Regulator Starting Motor ENGINE Cam Followers Camshaft Connecting Rods & Bearings Crankshaft & Bearings Cylinder Heads Cylinder Sleeves Flywheel Main Bearings Oil Pan Oil Pump Piston & Rod Removal Piston Pins & Bushings Pistons, Rings & Sleeves Remove & Reinstall Engine Assembly Timing Gear Cover Timing Gears Valve Adjustment Valve Guides & Springs Valves & Seats FINAL DRIVES Remove & Reinstall FRONT-WHEEL DRIVE Differential '. Front Drive Shaft Pivot Housing R&R Drive Axle Assy. Stub Axle Tie Rod & Tbe-In Transfer Gearbox Wheel Hub & Planetary HYDRAUUC SYSTEM Hitch Control Valve Hitch Cylinders Testing Pumps Remote Cylinder Remote Valves Rockshaft Sensing Linkage System Filters PARK LOCK Linkage Adjustment Overhaul Park Lock POWER SHIFT Ac^justment Control Valve Power Shift Operation R&R & Overhaul 2090, 2094 174,175 94 96 49 55 62 63 43 59 66 63 67 68 57 61 58 41 50 51 44 46 45 166 13 14 12 9 11 17 15 10 269 272,273 223,260 236,238 276 255 272,273 263,271 247 176 177 124,127 129,131 120,122 134 Models 2290, 2390, 2294 2394 174,175 94 96 49 55 62 63 43 59 66 63 67 68 57 61 58 41 50 51 44 46 45 166 13,21 14,22 12,20 9,18 11 17,24 15,23 10,19 269 272,273 223,260 236,238 276 255 272,273 263,271 247 176 177 124,127 129,131 120,122 134 174,175 94 96 49 55 62 63 43 59 66 63 67 68 57 61 58 41 50 51 44 46 45 166 269 274 223,260 237,238 276 255 275 263,271 251 180 181 124,127 129,131 120,122 142,152 2590, 2594 174,175 94 96 49 55 62 63 43 59 66 63 67 68 57 61 58 41 50 51 44 46 45 166 269 274 223,260 237,238 276 255 275 263,271 251 180 181 124,127 129,131 120,122 142,152

INDEX CONT. POWER TAKE-OFF Clutch Overhaul Control Valve & Flow Divider Linkage Ac^ustment R&R Housing & Gears POWER STEERING SYSTEM Fluid & Bleeding Hand Pump Operational Tfests Steering Column Steering Cylinder System Pressure TRANSMISSION (GEAR W/MECHANICAL SHIFT) Linkage Adjustment Overhaul Four-Speed Overhaul Range TVactor Split TRANSMISSION (GEAR W/POWER SHIFT) Linkage Adjustment Overhaul Four-Speed Shift Forks TURBOCHARGER Operation Overhaul Remove & Reinstall 2090, 2094 203,213 198,199 194,195 202,212 25 32 28 40 35,37 27 102,103 115 107 106 153 159 156 2290, 2294 203,213 198,199 194,195 202,212 26 32 28 40 35,37,38 27 102,103 115 107 106 153 159 156 86 88 87 Models 2390, 2394 221 200,201 194,195 220 26 32 28 40 36 27 2590, 2594 221 200,201 194,195 220 25 32 28 40 35 27 154 164 157 85 88 87 154 164 157 m m 87 DUAL DIMENSIONS This service manual provides specifications in both the U.S. Customary and Metric (SI) system of measurements. The first specification is given in the measuring system used during manufacture, while the second specification (given in parenthesis) is the converted measurement. For instance, a specification of **0.011 inch (0.279 mm)" would indicate that the equipment was manufactured using the U.S. system of measurement and the metric equivalent of 0.011 inch is 0.279 mm.

CONDENSED SERVICE DATA Models 2090, 2094 2290, 2294 2390, 2394 2590, 2594 GENERAL Engine Make " Own Engine Model . 504BD 504BDT 504BDT 504BDT Cylinders, No. of — 6 Bore — •— — 4-5/8 in. (117.5 mm) Stroke 5 in. — (127 mm) Displacement 504 cu.in. — (8.26 L) Compression Ratio 16.0:1 15.8:1 15.8:1 15.8:1 Main Bearings, No. of 7 Cylinder Sleeves, TVpe Wet Fbrward Speeds 8,12* 8,12* 12,24** 12,24** *Models 2090 and 2290 with mechanical shift transmission have 8 forward speeds. Models 2090, 2290, 2094 and 2294 power shift tractors have 12 forward speeds. ** Models 2394 and 2594 equipped with power shift High/Low unit have 24 forward speeds. All other power shift models have 12 forward speeds. TUNE-UP ' ' ' '' Firing Order 1-5-3-6-2-4 Valve Tkppet Gap, Warm- Intake —^ 0.015 in. (0.381 mm) Exhaust 0.025 in. — (0.635 mm) Compression at Cranking Speed —^ 400 psi (2758 kPa) Iryection P u m p - Make Robert Bosch Model PES Multiple Plunger Timing 27*» BTDC 25*^ BTDC Iryection Nozzles- Make Robert Bosch or American Bosch Opening Pressure, ^®^ • 3950-4100 psi (27235-28270 kPa) Used —3400-3950 psi — (23443-27235 kPa) ": Garret (AiResearch) T04B Engine Governed Speeds (Rpm)— Low Idle 725-775 High Idle 2280-2320 Rated Load 2100 Battery Tferminal Grounded Negative CAPACITIES Cooling System 38 qts. 38 qts. 44 qts. 44 qts. (36 L) (36 L) (41.6 L) (41.6 L) Crankcase (w/filters) 19 qts. 23 qts. 30 qts. 30 qts. (17.8 L) (22 L) (28.4 L) (28.4 L) Transmission & Hydraulic System 100 qts. 100 qts. 128 qts. 128 qts. (94.6 L) (94.6 L) (121.1 L) (121.1 L) Oil Type Hy-Tran Plus Fuel Tknk 65 gal. 65 gal. 85 gal. 85 gal. (24G L) (246 L) (322 L) (322 L)

Paragraphs 1-5 CASE/INTERNATIONAL FRONT AXLE (TWO WHEEL DRIVE) FRONT WHEEL BEARINGS All Models ' 1. Refer to Fig. 1 for typical wheel hub and bearing assembly. The tapered inner and outer roller bearings are not interchangeable. Clean and inspect bearing cups and cones and renew as necessary. Install inner seal (9) with lip facing spindle flange. Install outer seal (10) with lip facing away from bearing (11). Fill hub cavity and pack bearings with No. 2 lithium grease. Coat surface of seal lips with grease. When adjusting wheel bearings, tighten nut (7) until drag on hub is felt, then back nut off Vi turn or until next pin hole lines up. Bearings should have zero end play. Install cotter pin. SPINDLES All Models 2. R&R SPINDLES. Ib remove spindle, lift and support front of tractor and remove wheel. Disconnect tie rod ball joint from steering arm (3—Fig. 2). Remove bolt (1) and washer (2) from arm (3). Note index punch marks on arm and shaft indicating location of tapered splines for left or right steering arm, then remove steering arm. Support spindle and remove snap ring (4) and shims (5), then remove spindle (10) from axle extension (7). 3. SPINDLE BUSHINGS. With spindles removed, spindle bushings (6 and 9—Fig. 2) can be removed using a suitable drift punch. New bushings are presized and should not require reaming if carefully installed. Press new bushings into axle ends until bushing flange seats against surface of axle ends. Assemble by reversing disassembly procedure making sure punch marks on shaft and steering arm align. Tighten bolt (1) to 200-250 ft.'lbs. (271-339 N • m) torque. Lubricate through grease fitting (8) with No. 2 lithium grease. Tighten tie rod slotted nut to 100-125 ft.-lbs. (136-169 N • m) torque and install new cotter pin. 4. TIE RODS AND TOE-IN. Disassembly of tie rod assembly is ob- vious after examination of unit and reference to Fig. 3, However, upon reassembly make sure clamp bolt (9) for left side drag link (3) is installed in same number hole as left side axle extension outer bolt; and that right side drag link bolt (11) is installed in one less number hole of drag link (2) than outer mount- Fig. 1—Exploded view of wheel hub and bearing asaembly used on all model: 1. Wheel 2. Bolt 8. Cap 3. Cotter pin 9. Seal (inner) 4. Bearing cup 10. Seal (outer) 5. Bearing cone 11. Bearing cone 6. Washer 12. Bearing cup 7. Nut 13. Hub Fig. 2—Exploded view of ateerlng aplndle aaaembly typical of all modela. 1. Bolt 2. Washer 7. Axle extension 3. Steering arm (left hand shown) 4. Snap ring 8. Grease fitting 5. Shims Q. Bushing (lower) 6. Bushing (upper) 10. Spindle ing bolt of right axle extension. Tighten tie rod ball joint slotted nuts to 100-125 ft.-lbs. (136-169 N-m) torque. InstaU new cotter pins. Tighten drag link clamp bolt nuts to 45-54 ft.-lbs. (61-73 N • m) torque. Front wheel toe-in must be 1/8 to 1/2 inch (3.2-12.7 mm). 1b adjust toe-in, remove clamp bolt (9—Fig. 3) on left drag link. Loosen jam nut (4), then turn drag link (3) in or out until desired toe- in is obtained. Install clamp bolt and tighten nut on clamp bolt to 45-54 ft.- Ibs. (61-73 N • m) torque. Tighten jam nut (4) against drag link. AXLE MAIN MEMBER AND PIVOT PIN Models 2090 and 2290 (S/N prior to 9905953) 5. Tb remove axle main member, first raise and support tractor under engine side rails with suitable jack stands. Disconnect tie rods from steering arms, then refer to Fig. 3 and disconnect power steering cylinder (13) from axle main member and tie rod lug. Secure steering cylinder up and out of the way. Be careful not to damage hydraulic lines to cylinder. 12 15 14 Fig. 3^Exploded view of ateertng tie rod, cylinder, and anrrn typical of all modele. (Standard wheel baae axle ahown.} 1. steering ann (R.H.) 2. Drag link (R.H,) 3. Drag Unk (L.H.) 4. Jam nut 6. BaUJoint 6. Dust cover 7. Slotted nut 8. Steering ami (L.H.) 9. Clmmp bolt (L.H.) 10. Tie rod tube 11. Clamp bolt (R.H.) 12. Slotted nut 13. Steering cylinder 14. Axle main member 15. Slotted nut

SERVICE MANUAL Paragraph 6 Refer to Fig. 4, unpin and remove nut (10) from rear of pivot pin (4). Remove collar (11) and thrust washer (12). Remove bolt (17) from lock collar (14). Remove grease fitting (8) and install a slide hammer to pivot pin (4). Support axle main member with a rolling flo(»r jack, then pull pivot pin out front of axle assembly. Catch thrust washers (12), lock collar (14) and shim washer (5) £is pin (4) is withdrawn. Lower axle main member enough to clear front support and roll forward away from tractor. Pin bushings (2 and 3—Fig. 4) can be removed using a suitable drift puncli. Drive new bushings into front axle support until flush with axle suppoit casting. Bushings are presized and should require no reaming if carefully installed. When assembling, raise axle main member into position in axle support aligning pivot pin holes. Place retairiing ring (7—Fig. 4) and washer (6) onto pivot pin (4). Insert threaded end of pivot pin into axle support front bushing. Place shim thrust washer (5) between axle main member and axle support and slide pivot pin through washer and in- to axle main member front block. Install lock collar onto pin behind front block of axle member. Install bolt (17), washer (16) and lock tab (15) into lock collar (14) but do not tighten bolt at this time. Push pivot pin through rear of axle member and into rear of axle support. Move axle main member as far forward as possible, withdraw pin and install as many shim washers (12) as possible between axle support and rear of axle main member. Move axle member rearward against washers, drive pivot pin rearward until a 1/8 inch (3.2 mm) gap exists between washer (6) and front of axle support as shown in Fig. 5. Tighten lock collar bolt (17) to 60 ft.-lba Ftg. 4—Exploded W«iv of front ax/e a999mbfy u—d on Mod0l 2090 and 2290 tncton (S/N prior to 990S9S9h 1. Front support 2. Rear bufliUng 3. Front bushing ^ 4. Pivot pin 5. Shim washer '" \ 6. Collar '. 7. Snap ring : 8. Grease fitting 9. Grease fitting 10. Pin nut 11. Collar 12. Thrust washers 13. Axle main member 14. Lock collar 16. Lock tab 16. Washer 17. Bolt 18. Nut 19. Spacer 20. Bolt (68 N-m) torque and bend lock tab (15—Fig. 4) over bolt head. Install collar (11) and pivot pin nut (10) on rear of pin and tighten nut against collar (11). Back nut off V4 turn or until cotter pin hole aligns and install cotter pin. Install grease fittings (8 and 9) and lubricate with No. 2 lithium grease. All Other Models 6. Tb remove axle main member, first raise and support tractor under engine side rails with suitable jack standa Refer to Fig. 3 and disconnect power steering cylinder (13) from axle main member and tie rod lug. Secure cylinder up and out of the way. Be careful not to damage hydraulic lines to cylinder. Model 2390 and 2590 tractors with S/N prior to 9905953 are equipped with pivot pin lock collar (A—Fig. 6). All models with S/N 9905953 and above are equipped with axle main member with a keyway and Woodruff key (B) on pivot pin shaft (4). On Models 2390 and 2590 (S/N prior to 9905953) remove bolt on lock collar (A). Loosen pinch bolt on shaft nut (8). Remove front snap ring (9) and grease fitting (10). Unscrew locknut (8), then remove front collar (7) and thrust washers (5 and 6). Remove rear snap ring (14), cup washer (15) and attach a slide hammer to front of pivot pin (4). Support axle main member with a rolling floor jack and pull pivot pin out front of axle and support. Catch split collars (16), shim washers (17 and 11) and lock collar (A) as pivot pin is withdrawn. Lower axle member enough to clear front support and roU forward away from tractor. 20 whaal baaa. Lock collar (A) la uaad on Modala 2390 and 2590 prior to S/N 9905953. 1. n A. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 16. 16. 17. 18. 19. 20. Rafar to taxt. Front support Front bushing Pivot pin Shim washer Thrust washer Collar Shaft nut Snap dng Grease fitting Shim washer Axle main member (standard wheelbase) Grease fitting Snap ring Cup washer Split collars Thrust washer Nut Spacer Bolt > 13 14 15 16 17 11 r /-, 18' atallaHon on Modal 2090 and 2290 tractora (S/H prior to 990$953}. Rafar to lagand In Fig. 4.

Paragraphs 7-9 CASE/INTERNATIONAL On Models 2090, 2290, 2390 and 2590 (S/N 9905953 and above) and Models 2094, 2294, 2394 and 2594, remove front grease fitting (10—Fig. 6) and snap ring (9), loosen pinch bolt on shaft nut (8) and remove nut, then remove front collar (7) and thrust washer (6). Support axle main member with a rolling floor jack. Using a brass drift, bump pivot pin (4) rearward enough to allow removal of Woodruff key (B). Remove rear snap ring (14), cup washer (15), then using a slide hammer, pull pivot pin forward and out of axle and front support. Catch split collars (16) and thrust washers (11 and 17) as pivot pin is withdrawn. Pin bushings (2 and 3—Fig. 6) can be removed using a suitable drift punch. Drive new bushings into front asde support until flush with axle support casting. Bushings are presized and should require no reaming if carefuUy installed. Reinstall front axle on all models by reversing disassembly procedure. EXTENDED WHEELBASE FRONT AXLE Models 2390, 2590, 2094, 2294, 2394, and 2594 So Equipped 7. Models 2390, 2590, 2094, 2294, 2394 and 2594 tractors have an op- tionally available extended wheel base front axle which increases tractor wheelbase from 104 inches (264 cm) on standard units to 110 inches (279 cm) on Models 2094 and 2294 or 118 inches (300 cm) on Models 2390, 2590, 2394 and 2594. See Fig. 7. Removal of axle main member is similar to that of all model tractors outlined in paragraph 6 except the following: Tie rods and power steering cylinder pass through axle main member (12—Fig. 7); therefore hydraulic lines to steering cylinder must be disconnected for removal of axle. Cap or plug all hydraulic openings to prevent contamination of hydraulic system. Reassemble by reversing disassembly procedure. Bleed power steering system as outlined in paragraph 25. Fig. 7—Exploded view of extended wheeltmae front axle main member assembly available on Models 2390, 2590, 2094, 2294, 2394 and 2S94. 1. Front support 2. Rear bushing 3. Front bushing 4. Pivot pin 5. Woodruff key 6. Shim washer 7. Thrust washer 8. Collar 0. Shaft nut 10. Snap ring 11. Grease fitting 12. Axle main member 13. Grease fitting 14. Snap ring 16. Cup washer 16. SpUt collars 17. Shint washer 18. Nut 19. Spacer 20. Bolt Fig, 8—Front support and component parts used on Models 2094 and 2294 equipped with Carraro front drive axle. 1. Support cap (front) 2. Washer 3. Bushing lock 4. Grease fltting 6. Thrust washer 6. Sleeve 7. "O" ring 8. Bushing 9. "O" ring 10. Front support 11. Support cap (rear) 12. Thrust washer 13. Sleeve 14. "0" ring 16. Bushing 16. " 0 " ring FRONT SUPPORT All Models 8. Tb remove front support (1—Figs. 4, 6 or 7), first disconnect headlight wiring then remove grille, hood and side panels. Remove radiator as outlined in paragraph 90. Remove front axle main member as outlined in paragraphs 6 or 7. Attach suitable hoist to front support, then unbolt and remove. Assemble by reversing removal procedure. Tighten front support mounting bolts to 380-450 ft.-lbs. (515-610 N • m) torque. FRONT-WHEEL DRIVE (CARRARO AXLE) DRIVE AXLE ASSEMBLY AND SUPPORT Models 2094 and 2294 So Equipped 9. REMOVE AND REINSTALL. Tb remove the front drive axle assembly, place transmission in PARK and securely block rear wheels. Unbolt and remove drive shaft shield and the front drive shaft assembly. Disconnect steering cylinder lines and cap or plug all openings. Loosen front wheel to hub nuts on both wheels. Install a side frame jack CAS-10500-1 or equivalent on each side of tractor. Raise front of tractor until wheels are off the ground. Remove wheel nuts and using a hoist, remove front wheels. Place a floor jack or special axle carrier CAS-10500-4 under front axle. Remove bearing lock (3—Fig. 8) and grease fittiiig (4) from bearing support caps (1 and 11), then unbolt and remove caps. Lower axle (floor jack) or raise tractor (axle carrier) and roll assembly forward from tractor. Remove bushings (8 and 15) with *'O** rings (7, 9, 14 and 16), sleeves (6 and 13) and thrust washers (5 and 12). Ib remove front support (10—Fig. 8), disconnect headlight wiring, then remove hood, grille and side panels. Remove radiator as outlined in paragraph 90. Attach a hoist to front support, then unbolt and remove. Reinstall front support by reversing removal procedure. Tighten front support mounting bolts to a torque of 380-450 ft.-lbs. (515-610 N • m). Inspect thrust washers (5 and 12—Fig. 8), sleeves (6 and 13) and bushings (8 and 15) for excessive wear or other damage and renew as necessary. Install

SERVICE MANUAL Paragraphs 10-11 sleeves (6 and 13) on axle housing, then install thrust washers (5 and 12). Lubricate sleeves and install bushings (8 and 15) with new '*0*' rings. Reinstall axle assembly to front support (10). In- stall support caps (1 and 11), maldng certain the lube holes in bushings are aligned with holes in caps. Tighten support cap nuts to a torque of 400-480 ft.- lbs. (542-650 N • m). Install bushing locks (3) and grease fittings (4). Connect steering cylinder hoses and drive shaft. Tighten drive shaft bolts to a torque of 35-42 ft.-lbs. (48-57 N • m). InstaU driv<? shaft shield. Install front wheels and remove jacks. Tighten front wheel to hub nuts to 400-480 ft.-lbs. (542-650 N • m) torque. WHEEL HUB AND PLANETARY Models 2094 and 2294 So Equipped 10. R&R AND OVERHAUL. TD remove the wheel hub and planetarj^, support axle housing and remove wheel and tire assembly. Rotate wheel hub until drain plug (8—Fig. 9) is at bottom, remove plug and drain oil. Unbolt an<l remove cover and carrier assembly (7). Drive out roll pins (9) and remove planetary pins (6) with *'O'* rings (5). Fig. 9—Exploded view of wheel hub and planeiary unit ueed on Cerrmro front drive axle. 1. Thrust washers 13. Locknut 2. Spacers 14. Thrust wa^er 3. Beuing rollers 16. Shim 4. Planetary geu- 16. Ring 5. "O" ring 17. Gear hub 6. Planetary pin 18. Bearing 7. Cover A earner 19. Ring gear 8. Drain plug 20. Retaining ring 9. HoU pin 21. Wheel hub 10. Gasket 22. Bearing 11. Washer 23. OU seal 12. Sun gear 24. Dust seal Remove planetary gears (4) with thrust washers (1), spacers (2) and bearing rollers (3). Remove washer (11) from carrier and sun gear (12) from axle. Using a spanner wrench, remove locknut (13), thrust washer (14) and shims (15). Measure total thickness of shim pack (15) and retain for reassembly. Attach a hoist to hub (21). Pull hub outward about one inch (25.4 mm), then push hub back into place. Remove centering ring (16) from the ring gear, then remove ring gear assembly. Carefully remove the wheel hub. Remove cone of bearing (22), from stub shaft (17—Fig. 10) and cone of bearing (18—Fig. 9) from gear hub (17). Remove dust seal (24) and oil seal (23). If necessary, remove bearing cups from hub. Remove retaining ring (20) and lift gear hub (17) from ring gear (19). Clean and inspect all parts and renew any showing excessive wear or other damage. When reassembling, heat bearing cones to a temperature of 250° F (120*^ C) for aid in installation. Install hub (21) without oil seal (23) and dust seal (24). Install ring gear and gear hub assembly, centering ring (16), original shim pack (15), thrust washer (14) and locknut (13). Ti^ten locknut to a torque of 400-480 ft.-lbs. (542-650 N • m). Using a special fixture and torque wrench as shown in Fig. 11, check the torque needed to Rg, lO—Exploded view of pivot houeing end com- ponente ueed on Carrero front drive axle. Iteme ($ through 10) are also used In t>ottom of pivot housing (11). 1. "U" Joint A axle 12. Dust seal assy. 13. Oil seal 2. BaU bearing 14. Bushing 3. Snap ring 15. Plug 4. OUseal 16. Breather 5. Steering arm 17. Stub axle (upper) IB. Deflector ring 6. Shim 19. Breather shield 7. Pivot pin 20. Steering arm 8. "O" ring (lower) 9. Bearing . 21. Stop 10. Cup 22. Stud 11. Pivot housing 23. Nut rotate the hub. A torque of 35 in.-lba (4 N • m) will give the correct wheel bearing preload. Add or remove shims (15—Fig. 9) to obtain correct bearing preload. Shims are available in thicknesses of 0.004, 0.012 and 0.020 inch (0.1, 0.3 and 0.5 mm). When correct bearing preload has been obtained, remove hub and install new oil seal (23) and dust seal (24). Reinstall hub assembly and tighten locknut (13) to a torque of 400-480 ft.- lbs. (542-650 N • m). InstaU sun gear (12) on axle shaft. Install thrust washer (11) in carrier (7), then install planetary gears (4) with bearing rollers (3), spacers (2) and thrust washers (1). Install new '*0'* rings (5) on planetary pins (6). In- sert planetary pins and secure with roll pins (9). Use new gasket (10) and install cover and carrier assembly making certain that drain hole is aligned with cutout in wheel hub. Tighten retaining cap screws to a torque of 66-90 ft.-lbs. (89-122 N • m). Rotate hub untU the filler (drain) hole is horizontal to center of hub. Fin hub with lubricant to filler plug opening. Capacity is 4.5 U.S. quarts (4.25 L). Use GL5 85/140 EP gear oU. In- staU filler plug. Install wheel and tire assembly and lower tractor to ground. If necessary, repeat operation for opposite side. STUB AXLE AND AXLE SHAFT Models 2094 and 2294 So Equipped 11. REMOVE AND REINSTALL. Tb remove the stub axle (17—Fig. 10) and axle shaft (1), first remove wheel hub as outlined in paragraph 10. Then, remove the 12 stud nuts and lift off breather shield (19) and deflector (18). Remove the two dust plugs and install jack screws in stub axle. Tighten jack screws to separate stub axle from pivot housing (11). Remove stub axle, then remove dust seal (12), oil seal (13) and if necessary, bushing (14). Fig. 11—Uee special fixture and torque wrench to check wheel bearing preload. Refer to text.

Paragraphs 12-13 CASE/INTERNATIONAL Remove upper and lower hole plugs at outer end of axle housing, then loosen locknuts and remove bearing locating screws. Withdraw axle shaft assembly. Remove snap ring (3) and bearing (2). Oil seal (4) can be pulled from axle housing, if desired. All parts for the double '*U'* joint axle shaft are available separately. Procedures for renewing "U" joint crosses and bearings are conventional. When reassembling, install oil seal (4) with lip facing inward. Install bearing (2) and secure with snap ring (3). Lubricate oil seal (4) and carefully install axle shaft (1). Install and tighten upper and lower bearing locating screws. TTien, install locknuts and tighten to a torque of 195 ft.lbs. (264 N • m). If removed, install new bushing (14) in stub axle. Install new oil seal (13), but DO NOT bottom in bore. Install dust seal (12) until flush with face of bore. Lubricate seals and install stub axle, deflector (18) and breather shield (19). Install stud nuts and tighten to a torque of 203 ft.lbs. (275 N • m). Reinstall wheel hub as outlined in paragraph 10. . - PIVOT HOUSING Models 2094 and 2294 So Equipped 12. REMOVE AND REINSTALL. Tb remove the pivot housing (11—Fig. 10), first remove wheel hub as in paragraph 10 and stub axle and axle shaft as in paragraph 11. Then, disconnect steering cylinder from upper steering arm (5) and tie rod from lower steering arm (20). Unbolt and remove lower steering arm (20) and lower shims (6). Attach a slide hammer to lower pivot pin (7) and remove pivot pin and bearing cone. Un- bolt and remove upper steering arm (5) and upper shims (6). Using a slide hammer, remove upper pivot pin (7) and bearing cone. lift off pivot housing (11). If necessary, use a slide hammer puller to remove bearing cups from axle housing. Clean and inspect all parts and renew as necessary. Heat bearing cones to 250° F (120*=* C) for aid in installation. Allow to cool and install new '*0'* rings (8). If removed, install bearing cups in axle housing. Pack bearing cones with grease and put grease in cups (10) in axle housing. Install pivot housing and insert pivot pins and bearing cones. Use a plastic hammer and tap pivot pins into position. Install lower steering arm (20) without shims and tighten cap screws to a torque of 30 ft.-lbs. (40 N • m). Place all the shims (6) removed from upper and lower pivot pins plus another shim of 0.020 inch (0.5 mm) thickness on the upper pivot pin. Install upper steering arm (5) and tighten cap screws to a torque of 30 ft.-lbs. (40 N • m). Using a feeler gage, measure the distance between upper steering arm and ma- chined surface on pivot housing. Remove upper steering arm and all shims. Measure shim pack thickness. Subtract shims equal to the measured distance between steering arm and pivot housing from shim pack. Divide remaining shims by two. Place each shim pack half plus an additional 0.006-0.008 inch (0.15-0.20 mm) shim under each steering arm to provide 0.012-0.016 inch (0.3-0.4 mm) total bearing preload. Tighten upper and lower steering arm cap screws to a torque of 317 ft.-lbs. (430 N • m). Complete balance of installation by reversing the removal procedure. DIFFERENTIAL AND BEVEL DRIVE GEARS Models 2094 and 2294 So Equipped 13. R&R AND OVERHAUL. Ib remove the differential assembly, first remove front drive axle assembly as outlined in paragraph 9. Then, remove wheel hubs and planetarys as in paragraph 10 and stub axles and axle shafts as in paragraph 11. Remove steering cylinders and tie rod. Remove drain plug and drain lubricant from axle housing. Attach a hoist to differential carrier, then unbolt and remove differential assembly. NOTE: It may be necessary to use |ack screws to force differential carrier from axle housing. Place assembly on a bench and remove yoke from pinion shaft. Place match marks on carrier (8—Fig. 12) and bearing support caps (9). Remove both adjusting ring locks. Remove retaining nuts and lift off support bracket (10), bearing support caps (9) and adjusting rings (1 and 17—Fig. 13). Remove differential and ring gear assembly and set aside for later disassembly. Unbolt and remove seal retainer (3—Fig. 12) with seals (1 and 2) and gasket (4). Remove locknut (5), pull bevel pinion shaft out and catch bearing cone (6). Remove spacer (12), first shim (13), bearing cone (14) and second shim (13A) from bevel pinion shaft (15). Use a slide hammer puller and remove bearing cups (6 and 14). If bevel pinion shaft (15), pinion bearings (6 and 14) or carrier (8) are renew- ed, pinion shaft protrusion must be set as follows: Install both pinion bearing cups. Install carrier bearing caps and 12 13 14 Fig. 12—View of bevel drive pinion and component parts removed from carrier (8). 9. Bearing support 1. Dust seal cap 2. Oil seal 10. Support bracket 3. Seal retainer U. Gasket 4. Gasket 12. Spacer B. Nut 13. Shim 6. Taper roller 13A. Shim bearing 14. Taper roller 7. Drain plug bearing 8. Carrier 15. Bevel drive pinion Fig. 13—Exploded view of late type Carrara limited slip front drive axle differential. On earlier type, discs (10), spacers (11) and side gears (12) had four tangs Instead of 21 teeth. 1. Adjusting ring 2. Bearing cup & cone 10. Friction disc (inter- 3. Lockplate nal teeth) 4. Ring gear 11. Spacer 5. Bevel drive pinion 12. Side gears 6. Differential case 13. Cross pins half 14. Thrust washer 7. Set screw 15. Differential pinions 8. Disc carrier ring 16. EHfferential case 9. Friction disc (exter- half nal tang) 17. Adjusting ring tighten retaining nuts securely. Measure and record the bore diameter. This is 10

SERVICE MANUAL Paragraph 14 dimension (D—Fig. 14). Install pinion bearing cones and using a fixture as shown in Fig. 14 or a bolt and washers, tighten nut to hold bearings tight in position. Place a 25 mm diameter rod having a cross hole drilled through it across bearing bore as shown in Fig. 14. Using a depth gage, measure from top of rod to face of inner bearing cone and record measurement. This is dimension (Y—Fig. 14). Subtract 25 mm (diameter of rod) from measurement of depth gage (Y). Add this to one-half the diameter of carrier bearing bore (D). This will be dimension (B). Then, subtract dimension etched on pinion shaft gear end from fB) if it is a minus f-l dimension or add if it is a plus (+) dimension (this dimension is in millimeters), for result. This dimension wiU be correct shim thickness to install between bearing cone (14—Fig. 12) and pinion shaft gear (15) for correct pinion shaft protrusion. Remove bearing cones from carrier. Install the determined shim (13A) on pinion shaft. Heat bearing cone (14) to 250° F (120*^ C) and install on pinion shaft. Measure shim (13), removed during disassembly, and select a shim 0,5 mm thicker and install on pinion shaft. Install spacer (12) and insert pinion shaft into position in carrier. Heat bearing cone (6) to 250° F (120° C) and install on pinion shaft. Install a new locknut (5) and tighten to a torque of 100 ft.-lbs. (135 N • m). Using a dial indicator, measure pinion shaft end play. This measurement plus 0.05 mm is the correct shim thickness to be removed. Select and install correct shim (13), then tighten locknut to a torque of 442 ft.- lbs. (599 N • m). Using a torque wrench, measure amount of torque needed to rotate pinion shaft. A torque of 1.5-2.0 in.-lbs. (0.17-0.23 N • m) will be correct bearing preload. Install new oil seal (2) in seal retainer (3). DO NOT bottom sejil in retainer. Install new dust seal (1) until fiush with face of retainer. Lubricate seals and using new gasket (4), install n;- tainer. Tighten cap screws to a torque of 60 ft.-lbs. (82 N • m). Remove carrier bearings (2—Fig. 13). Place a match mark across both halveis of differential case for aid in reassembly. Straighten lock plates (3), then unbolt and remove ring gear (4). Separate differential case halves (6 and 16). Remove friction discs (9 and 10), spacer (11) and side gear (12) and lift out cross pins (13) with differential pinions (15) and thrust washers (14). Then, remove second side gear (12), spacer (11) and friction discs (9 and 10). Remove set screws (7) and withdraw disc carrier rings (8). Clean and inspect all parts and renew as necessary. Ring gear (4) and pinion shaft (5) are available only as a matched set and must be installed as such. When reassembling, install disc carrier rings, aligning the set screw holes. In- stall set screws and tighten to a torque of 15 ft.-lbs. (20 N • m). Apply one or two drops of Loctite 290 in set screw holes after set screws are tightened. Measure thickness of each friction disc and renew any measuring less than 0.070 inch (1.77 mm). Measure total thickness of friction discs (9 and 10) for each side. Add correct spacer (11) to give a total thickness of 0.602-0.614 inch (15.3-15.6 mm) for each side. Apply a coating of grease to spacers and friction discs to hold them together on side gears during assembly. Install side gear with spacer and friction discs in each differential case half. Install cross pins with differential pinions and thrust washers on one case half, then install second case half, aligning match marka If necessary, heat ring gear to a max- imum of 400°-450° F(204°-232° C) and install over dowel pins. Install lockplates and cap screws and tighten cap screws to a torque of 88 ft.-lbs. (119 N • m). Bend lockplates up against cap screw heads. Heat carrier bearing cones (2) to 250° F (120° C) and install on differential case. Install bearing cups on cones and place differential in position in carrier. InstaU bearing support caps (9—Fig. 12) aligning match marks on carrier and caps. Install support bracket (10), install retaining nuts and tighten nuts lightly. Make certain there is some clearance between ring gear and pinion. Install bearing adjusting rings (1 and 17—Fig. 13) and turn them in against carrier bearings. Tighten retaining nuts on support bracket to 442 ft.-lbs. (599 N m) torque. Turn adjusting ring clockwise on ring gear side until ring gear contacts pinion shaft. Turn adjusting ring on opposite side clockwise until all clearance in the bearings is removed. Clearance is removed when the acyusting ring becomes difficult to turn. Attach a dial indicator to carrier and check ring gear to pinion backlash which should be 0.006-0.010 inch (0.15-0.25 mm). Tb in- crease backlash, turn ac^usting ring on ring gear side counterclockwise one notch and opposite ring clockwise one notch. If necessary, repeat procedure until backlash is correct. At^justment is opposite to decrease backlash. When backlash is correct, turn each adjusting ring clockwise one notch to preload carrier bearings. Install adjusting ring locks and tighten cap screws to a torque of 18 ft.-lbs. (25 N • m). Use new gasket (11—Fig. 12) and install assembly in axle housing. Tighten retaining nuts to a torque of 144 ft.lbs. (195 N • m). The balance of reassembly is the reverse of disassembly procedure. After installation, fill axle and differential housing to level plug opening. Capacity is 16 U S. quarts (15 L). Use GL5 85/140 EP gear oil. Manufacturer recommends that oil in front drive axle be changed each 1000 hours of operation. FRONT DRIVE SHAFT Models 2094 and 2294 So Equipped 14. R&R AND OVERHAUL. TD remove the front drive shaft, first unbolt and remove drive shaft shield (4—F^. 15). Remove cap screws (14) and separate cross and bearing assemblies from front and rear yokes (5 and 1). Remove lube fittings (8 and 12). Remove cap screws (9 and 13) and separate cross and bearing assemblies (7 and 11) from drive shaft (10). Cross and bearing units (7 and 11) are serviced only as assemblies. Reassemble and reinstall by reversing disassembly and removal procedures. Tighten cap screws (9 and 13) to a torque of 37-49 ft.-lbs. (50-66 N • m) and cap screws (14) to a torque of 35-42 ft.- lbs. (48-57 N • m). Fig. 14—Dlagram showing method of securing pinion bearings In carrier to allow depth gage measurement to be taken. Refer to text. ROD BEARING CARRIER IXTURE 11

CASE 2090 Tractor Workshop Service Manual for Repair

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