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Caterpillar Cat 926 WHEEL LOADER (Prefix 4NB) Service Repair Manual (4NB00001-02075)

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Caterpillar Cat 926 WHEEL LOADER (Prefix 4NB) Service Repair Manual (4NB00001-02075)

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  1. Service Repair Manual Models 926 WHEEL LOADER

  2. 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENGI... 2/17 START BY: a. remove axle housing (front) b. remove axle housing and supports (rear oscillating) c. remove axles (front or rear) https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2021/2/12

  3. 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENGI... 3/17 NOTE: Disassembly of the front and rear differentials is the same. The front differential is shown. 1. Drain the oil from the differential. 2. Put the axle housing in position on tooling (A) with the differential in the vertical position. The weight of the front axle housing is 953 kg (2100 lb.). The weight of the rear axle housing is 1135 kg (2500 lb.). 3. Remove yoke (1). Remove bolts (2) and retainer (3). Remove the lip seal from the retainer. 4. Remove the bolts that hold the differential to the axle housing. Remove bolt (4). Install two 3/8"-16 NC forged eyebolts (5), and fasten a hoist. 5. Use two 5/8"-11 NC forcing screws (6) to loosen the differential from the axle housing. Remove the differential. The weight of the differential is 118 kg (260 lb.). 6. Put the differential assembly in position on tooling (B). 7. Install two 3/8"-16 NC forged eyebolts (7), and fasten a hoist. Remove the bolts that hold pinion housing (8) to carrier assembly (9). 8. Use two 1/2"-13 NC forcing screws (10) to loosen the pinion housing. Remove pinion housing (8) and shims (11). The weight of the pinion housing is 27 kg (60 lb.). https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2021/2/12

  4. 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENGI... 4/17 9. Use tool (C), and remove the staked portion of nut (12) from the groove (slot) in pinion shaft (13) as shown. 10. Use tool (D), and remove nut (12) from the pinion shaft. 11. Remove washer (14) from pinion shaft (13). NOTICE Do not let pinion shaft assembly (13) fall when it is pushed out of pinion housing (8). https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2021/2/12

  5. 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENGI... 5/17 12. Use a press to push pinion shaft assembly (13) out of the pinion housing. 13. Remove bearing cone (15) from the pinion housing. NOTICE Do not let pinion shaft (13) fall when it is pushed out of the bearing cone. 14. Use a press and tooling (E) to push pinion shaft (13) out of the bearing cup. 15. If necessary, use tooling (F) to remove the bearing cups from each end of pinion housing (8) as shown. 16. Position the carrier assembly with the bevel gear up. Remove bolts (16) and locks (17). 17. Loosen bolts (18) that hold bearing caps (19); then loosen nuts (20) approximately 1/2 turn. Remove bolts (18) and bearing caps (19). https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2021/2/12

  6. https://www.aservicemanualpdf.com/ My Dear Friend! Thank you very much for visiting. Full manual if required, please enter the following URL into your browser. https://www.aservicemanualpdf.com/

  7. 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENGI... 6/17 18. Fasten a nylon strap and hoist to the differential assembly, and remove it from the carrier assembly. The weight of the differential assembly is 43 kg (95 lb.). Remove nuts (20) and bearing cups (21). 19. Remove bolts (22). 20. Use tooling (G), and press the differential assembly from bevel gear (23). 21. Use tooling (H), and remove both bearing cones from the differential. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2021/2/12

  8. 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENGI... 7/17 22. Bend lock (24) away from bolt (25). Remove bolt (25). 23. Use a hammer and punch, and remove the dowel from the case. 24. Remove shaft (26). Remove two pinions (27) and washers. Remove two gears (28) and washers. Assemble Differentials (Front And Rear) https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2021/2/12

  9. 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENGI... 8/17 NOTE: Assembly of the front and rear differentials is the same. The front differential is shown. 1. Lower the temperature of bearing cups (1), and install them in each end of pinion housing (2). The bearing cups must be against (seated) the shoulder in housing (2). 2. Heat bearing cone (4) to a maximum temperature of 135°C (275°F), and install it on pinion shaft (3). The bearing cone must be against (seated) the shoulder on pinion shaft (3). 3. After bearing cone (4) has cooled, put clean differential oil on it. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2021/2/12

  10. 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENGI... 9/17 NOTE: There must be a small amount of end play in the bearings after bearing (5) is installed in housing (2). 4. Heat bearing cone (5) to a maximum temperature of 135°C (275°F), and install it on the pinion shaft until it is against (seated) the bearing cup in the housing. 5. After bearing cone (5) has cooled, put clean differential oil on it. 6. Install washer (7) on the pinion shaft with the tab of the washer engaged in the groove (slot) of the shaft. 7. Install nut (6) until it just makes contact with washer (7). 8. Put pinion housing assembly (2) in position in a soft jawed vise. Tighten the vise against the gear teeth of pinion shaft (3) as shown. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2021/2/12

  11. 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENG... 10/17 9. While pinion housing (2) is turned slowly, tighten nut (6) with tool (B) and an air impact wrench until a slight resistance is required to rotate the housing. 10. Loosen the vise, and reposition pinion housing assembly (2) in the vise as shown. Tighten the vise against the pinion housing so that the pinion shaft is free to rotate. 11. Use tool (B) and a torque wrench to measure the torque needed to turn the pinion shaft. The torque must be 0.7 to 1.1 N·m (6 to 10 lb.in.) for new bearings and .35 to .55 N·m (3 to 5 lb.in.) for used bearings. 12. If the torque required to rotate the pinion shaft is more than the torque specified in Step 11, loosen nut (6) 1/8 turn, and tap the end of the pinion shaft with a soft faced hammer to loosen the bearing preload. Repeat steps 8 through 11 until the torque required to turn the pinion shaft is correct. 13. Use tooling (C) to check the end play of pinion shaft (3) as shown. After obtaining the correct torque required to turn the pinion shaft, there must be zero end play of pinion shaft (3). NOTE: If the collar (shoulder) of nut (6) is cracked during removal or restaking, the nut must be replaced. 14. Use tool (D) to stake nut (6) by peening the collar (shoulder) into the groove (slot) of the pinion shaft. 15. To obtain the best results during the peening operation, hold tool (D) at an angle of 10° and 30° from the face of nut (6), and stake an area 4.7 mm (.19 in.) long (minimum) and 2.5 mm (.10 in.) deep (minimum). https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2021/2/12

  12. 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENG... 11/17 16. Install two 3/8"-16 NC forged eyebolts and a hoist to the pinion assembly. Install two 1/2"-13 NC guide bolts as shown. 17. Do not install the O-ring seal around the pinion housing at this time. 18. Install the original thickness of shims (8) on the carrier housing if the original gears, carrier assembly and housing are being used again. If any of these parts are replaced, install 80% of the original thickness of shims. NOTE: Shim pack (8) thickness may have to be changed when adjusting the tooth contact pattern (backlash). 19. Install the pinion assembly. Make sure the hole in pinion housing (2) is in alignment with pin (9). Install the bolts, and tighten them to a torque of 135 ± 15 N·m (100 ± 11 lb.ft.). NOTE: Make sure the grooved side of washers (10) are against gears (11). 20. Install two washers (10) and two gears (11). Install two washers and two pinions (12). Rotate gears and pinions until shaft (13) can be installed through the washers and pinions (12). 21. Install dowel (14) through the hole in shaft (13). https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2021/2/12

  13. 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENG... 12/17 22. Install a new lock (15) and bolt (16). Bend the tab of lock (15) against one of the flats on bolt (16). 24. Heat bearing cones (17) to a maximum temperature of 135°C (275°F), and install them on each end of the differential case. Make sure bearing cones (17) are seated against the shoulder of the differential case. 25. Put bevel gear (18) in position on the differential case. Install new bolts (19). NOTE: New bolts (19) that hold the differential case to bevel gear (18) are coated with Loctite Dri-Loc 200. Install new bolts (19), and tighten them to a torque of 135 ± 15 N·m (100 ± 11 lb.ft.). If the original bolts are reused, use the following procedure: a. Use 6V1541 Quick Cure Primer to clean the threaded holes in bevel gear (18). b. Put 9S3265 Retaining Compound in the threaded holes of bevel gear (18). c. Install the original bols that hold differential case to bevel gear (18), and tighten them to a torque of 135 ± 15 N·m (100 ± 11 lb.ft.). 26. Fasten a nylon strap and a hoist to the differential assembly. Put clean differential oil on bearing cones (17). Install bearing cups (20) over the bearing cones to prevent damage during assembly. 27. Put the differential assembly in position in the carrier assembly with bevel gear (18) on the side opposite dowel hole (21) in the carrier assembly. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2021/2/12

  14. 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENG... 13/17 NOTE: Bearing adjuster nuts (24) must turn freely after they are installed. 28. Install bearing caps (22) and bolts (23) finger tight. Install bearing adjuster nuts (24). 29. Tighten one of bolts (23) on each cap to a torque of 70 N·m (50 lb.ft.). Tighten the other bolt on each cap to a torque of 5 N·m (4 lb.ft.). 30. Tighten both bearing adjuster nuts (24) evenly until there is a small amount of backlash and zero preload on the differential bearings. 31. Rotate tooling (A) until the pinion shaft is in a horizontal position. 32. Use tool (B), and measure the torque required to rotate the pinion shaft. Record the measurement. 33. While rotating bevel gear (18), use tool (E), and tighten the bearing adjuster nut on the side adjacent to the bevel gear until there is zero backlash. Then back off the adjusting nut to the nearest lock position. (A maximum of one lug movement.) https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2021/2/12

  15. 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENG... 14/17 34. Tighten the bearing adjuster nut opposite the bevel gear until the torque required to rotate the pinion shaft increases 0.2 to 0.6 N·m (2 to 5 lb.in.) more than the torque measurement recorded in Step 32. This is the seated position. 35. To set the bearing preload, tighten the adjuster nut opposite the bevel gear another two lugs plus the nearest lock position. 36. Use tool (C), and measure the backlash between the bevel gear and pinion. The backlash must be 0.20 ± 0.10 mm (.008 ± .004 in.). NOTE: The differential preload will be kept only if one bearing adjuster nut is loosened and the other adjuster nut is tightened the same amount. 37. If the backlash is too much, loosen the bearing adjuster nut opposite the bevel gear, and tighten the other adjuster nut the same amount. 38. If the backlash is not enough, loosen the bearing adjuster nut adjacent to the bevel gear, and tighten the other adjuster nut the same amount. 39. After the gear clearance (backlash) and bearing preload adjustments have been made, check the tooth contact setting between the bevel gear and pinion as follows: a. Put a small amount of marking compound (Prussian blue) on the bevel gear teeth. Turn the pinion in both directions, and check the marks made on the bevel gear teeth. Correct Tooth Contact Setting https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2021/2/12

  16. 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENG... 15/17 b. With no load, the correct tooth contact setting will be as shown. The correct area of tooth contact is located equally on both sides and starts near the toe of the gear and goes 30% to 50% up the length of the tooth. With this setting, when a load is put on the gear, the load will be over the correct area of the teeth. Short Toe Contact Setting c. If the pinion shaft is too far away from the bevel gear, short toe contact will be the result as shown. The teeth of the pinion will be in contact with the toe ends of the convex faces (part that makes a curve toward the outside), and the top edge of the heel end of the concave faces (part that makes a curve toward the inside). To correct this, remove shims (8) from between the pinion housing and the carrier. After this is done, check the gear clearance (backlash) and tooth contact again. Short Heel Contact Setting d. If the pinion shaft is too near to the center of the bevel gear, short heel contact will be the result as shown. The teeth of the pinion will be in contact with the toe ends of the concave faces (part that makes a curve toward the inside) and the heel ends of the convex faces (part that makes a curve toward the outside). To correct this, add shims (8) between the pinion housing and carrier. After this is done, check the gear clearance (backlash) and tooth contact again. NOTE: Several adjustments of both pinion and bevel gear may be needed before correct tooth contact and gear clearance (backlash) is made. Always remember that a change to gear clearance (backlash) will also change the tooth contact. Therefore, be sure gear clearance (backlash) is in correct adjustment before tooth contact is checked. e. After gear (backlash) and tooth contact are correct, remove the extra marking compound (Prussian blue) from the bevel gear and pinion. f. Install the O-ring seal between the pinion housing and carrier assembly. Again, tighten the bolts to a torque of 135 ± 15 N·m (100 ± 11 lb.ft.). https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2021/2/12

  17. 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENG... 16/17 40. Install locks (25) and bolts (26). Tighten bolts (23) to a torque of 475 ± 50 N·m (350 ± 37 lb.ft.). 41. Install seal (28). Install two 3/8" - 16 NC forged eyebolts, and fasten a hoist. Install two 5/8" - 11 NC guide bolts (30). Install the differential assembly into the axle housing. Make sure the dowel hole in carrier assembly (27) is in alignment with dowel (29). 42. Put 6V6640 Gasket Maker in the bore of retainer (31) before installing the lip seal. 43. Use tooling (F), and install seal (32) with the lip of the seal facing down as shown. 44. Install the gasket and retainer (31). Lubricate the lip seal with differential oil, and install yoke (33). 45. Install bolts (34). Tighten the bolts to a torque of 270 ± 25 N·m (200 ± 18 lb.ft.). 46. Install the bolt that holds brake line tee (35) to the differential. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2021/2/12

  18. 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENG... 17/17 47. Fill the axle housing with oil to the corret level. See the Maintenance Guide. END BY: a. install axles (front or rear) b. install axle housing and supports (rear oscillating) c. install axle housing (front) Copyright 1993 - 2021 Caterpillar Inc. Fri Feb 12 00:06:18 UTC+0800 2021 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2021/2/12

  19. 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENGI... 1/2 Shutdown SIS Previous Screen Product: WHEEL LOADER Model: 926 WHEEL LOADER 4NB Configuration: 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENGINE Disassembly and Assembly 926 WHEEL LOADER POWER TRAIN Media Number -SENR3065-00 Publication Date -01/05/1985 Date Updated -15/10/2004 SENR30650017 Transmission Oil Filter Bypass Valve And Filter SMCS - 3179-011; 3179-012 Remove Transmission Oil Filter Bypass Valve And Filter START BY: a. remove lower cab shrouds (rear left hand shroud and cover only) * 1. Remove the bolts, and disconnect oil lines (1) from the oil filter base. 2. Remove plug (2), the valve spool and spring from the base assembly. 3. Remove housing (3) and the filter element from the base assembly. See the Maintenance Guide. *This operation is in the Vehicle Systems Disassembly And Assembly section. Install Transmission Oil Filter Bypass Valve And Filter https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2021/2/12

  20. 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENGI... 2/2 1. Install filter element and housing (4) on the base assembly if they were removed. See the Maintenance Guide. 2. Put the O-ring seals in position on oil lines (1). 3. Put oil lines (1) in position on the base assembly, and install the bolts that hold them. 4. Put spring (3) and spool (2) in position in the base assembly. 5. Put the O-ring seal on the plug, and install the plug to hold spring (3) and spool (2) in the base assembly. END BY: a. install lower cab shrouds (rear left hand shroud and cover only) * *This operation is in Vehicle Systems Disassembly And Assembly section. Copyright 1993 - 2021 Caterpillar Inc. Fri Feb 12 00:07:15 UTC+0800 2021 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2021/2/12

  21. 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENGI... 1/4 Shutdown SIS Previous Screen Product: WHEEL LOADER Model: 926 WHEEL LOADER 4NB Configuration: 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENGINE Disassembly and Assembly 926 WHEEL LOADER POWER TRAIN Media Number -SENR3065-00 Publication Date -01/05/1985 Date Updated -15/10/2004 SENR30650018 Transmission Oil Pump SMCS - 3153-010; 3153-015; 3153-016 Remove And Install Transmission Oil Pump START BY: a. remove hydraulic oil pump * NOTE: The transmission was removed for photo purposes. The transmission pump can be removed with the transmission in the machine. 1. Drain the transmission oil. Disconnect the transmission outlet hose from transmission pump (1). Remove suction tube (3). 2. Remove two bolts (2) and transmission pump (1). https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2021/2/12

  22. 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENGI... 2/4 NOTE: The following steps are for installation of the transmission oil pump. 3. Check the condition of the O-ring seal on the transmission pump drive gear and the transmission pump housing. Replace them if necessary. Lubricate the two seals with oil, and install transmission pump (1) and two bolts (2). 4. Check the condition of the seals, and install suction tube (3). Fill the transmission pump with oil, and connect the transmission outlet hose. *This operation is in the Vehicle Systems Disassembly And Assembly section. Disassemble Transmission Oil Pump START BY: a. remove transmission oil pump NOTE: Put identification marks on all of the parts for assembly purposes. 1. Remove bolts (1), and separate manifold assembly (2) and body assembly (3) from cover assembly (4). 2. Remove body assembly (3) and bearings (5) from manifold assembly (2). Remove the O-ring seal. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2021/2/12

  23. 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENGI... 3/4 3. Remove two gears (6), O-ring seal (7) and the two bearings from cover assembly (4). Assemble Transmission Oil Pump https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2021/2/12

  24. 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENGI... 4/4 1. Use tooling (A), and install bearings (1) in manifold assembly (2) and bearings (3) in cover assembly (4). Install the bearings until they are 1.5 ± 0.5 mm (.06 ± .02 in.) below the surface. Make sure the bearing joints are 30° ± 15° from the centerline toward discharge port (5). 2. Install O-ring seals (6) and (7). 3. Lubricate the bearings in cover assembly (4), and install gears (8). 4. If four dowels (9) were removed, install dowels (9). The dowels must project 5.00 ± 0.50 mm (.197 ± .020 in.) from the surfaces of body (10). Install body assembly (10) on manifold assembly (2). 5. Lubricate the bearings in manifold assembly (2), and install the manifold assembly and body assembly (10) on cover assembly (4). Install bolts (11). 6. Lubricate the pump with clean transmission oil. The pump must rotate freely by hand. END BY: a. install transmission oil pump Copyright 1993 - 2021 Caterpillar Inc. Fri Feb 12 00:08:12 UTC+0800 2021 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2021/2/12

  25. 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENGI... 1/3 Shutdown SIS Previous Screen Product: WHEEL LOADER Model: 926 WHEEL LOADER 4NB Configuration: 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENGINE Disassembly and Assembly 926 WHEEL LOADER POWER TRAIN Media Number -SENR3065-00 Publication Date -01/05/1985 Date Updated -15/10/2004 SENR30650019 Torque Converter Outlet Relief Valve SMCS - 3133-010; 3133-017 Remove And Install Torque Converter Outlet Relief Valve START BY: a. remove lower cab shrouds (right hand shroud only) * NOTE: The torque converter outlet relief valve is located on the right side of the transmission case. The cab was removed for photo purposes. 1. Remove the two oil cooler lines (1). 2. Disconnect the two electrical wires (2). https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2021/2/12

  26. 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENGI... 2/3 3. Remove three bolts (3) and torque converter outlet relief valve (4). NOTE: The following steps are for installation of the torque converter outlet relief valve. 4. Check the two O-ring seals, and replace them if necessary. Install the torque converter outlet relief valve and bolts (3). 5. Connect the two wires (2), and install the two oil cooler lines (1). END BY: a. install lower cab shrouds (right hand only) * *This operation is in Vehicle Systems Disassembly And Assembly section. *This operation is in Vehicle Systems Disassembly And Assembly section. Disassemble And Assemble Torque Converter Outlet Relief Valve START BY: a. remove torque converter outlet relief valve 1. Remove cover (3), seal (2) and spool assembly (1). 2. Remove spring (4), shims (5), shims (6), ring (11), retainer (10), spring (9) and poppet (8) from spool (7). 3. Lubricate all parts with clean transmission oil before assembly. Assemble the torque converter outlet relief valve in the reverse order. END BY: a. install torque converter outlet relief valve https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2021/2/12

  27. 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENGI... 1/8 Shutdown SIS Previous Screen Product: WHEEL LOADER Model: 926 WHEEL LOADER 4NB Configuration: 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENGINE Disassembly and Assembly 926 WHEEL LOADER POWER TRAIN Media Number -SENR3065-00 Publication Date -01/05/1985 Date Updated -15/10/2004 SENR30650020 Torque Converter, Transmission And Transfer Gears SMCS - 3003-011; 3003-012 Remove Torque Converter, Transmission And Transfer Gears START BY: a. remove torque converter outlet relief valve b. remove drive shaft (rear) c. remove cab * d. remove supplemental steering pump ** e. remove parking brake ** f. remove parking brake chamber ** *This operation is in the Operator's Station Disassembly And Assembly section. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2021/2/12

  28. 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENGI... 2/8 NOTE: Put identification marks on all hoses, lines and tubes. Put caps or plugs on these items to keep out dirt or foreign material. 1. Remove bolt (1). Remove the bolts that hold oil filler tube (2) and oil level tube (3) to the transfer gear case. Remove them as a unit. 2. Disconnect clip (4). Disconnect hose assembly (5) and hose assembly (6), and set them aside. Remove tube assembly (7). 3. Disconnect hose assembly (8). 4. Disconnect the wires from directional control cable switches (9) and steering flow switch (10). Label the wires for installation. Disconnect wire terminal (11). Disconnect hose assembly (12). https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2021/2/12

  29. 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENGI... 3/8 5. Remove cover (13) for the governor control. 6. Mark the location of lever (14) on the governor shaft. Slide lever (14) off the shaft. Remove two bolts (15), and set the governor control housing and cable aside. 7. Disconnect two clips (16) (one shown) holding the governor cable. Move the governor cable out of the way. 8. Disconnect transmission neutralizer hose (17). 9. Remove the bolts holding transmission directional control cable (18) and speed control cable (19). Pull the cables out, and disconnect them from the transmission spools. 10. Disconnect clip (20), and move parking brake air hose (21) out of the way. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2021/2/12

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  31. 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENGI... 4/8 11. Remove steering tubes (22) and (23). 12. Remove tube assembly (24). Disconnect hose assembly (25). Remove two steering cylinder crossover tube assemblies (26) and (27). 13. Put tooling (A) and a 12.7 mm (.50") thick steel plate in position between the differential housing and the oil pan. Apply pressure to tooling (A) until there is slight tension between the differential housing and the oil pan. 14. Install a 1/2"-13 NC forged eyebolt and tooling (B), and fasten a hoist. 15. Remove mount assemblies (28) and bracket assemblies (29) from both sides of the transfer gear case. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2021/2/12

  32. 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENGI... 5/8 16. Remove the bolts that hold the transmission case to the flywheel housing, and remove the torque converter, transmission and transfer gears as a unit. The weight is 566 kg (1250 lb.). **This operation is in the Vehicle Systems Disassembly And Assembly section. Install Torque Converter, Transmission And Transfer Gears 1. Lubricate the seal around the transmission case with oil. Install a 1/2"-13 NC forged eyebolt and tooling (A). Fasten a hoist, and put the torque converter, transmission and transfer gears in position in the machine. 2. Make sure the gear teeth of the torque converter housing are correctly engaged with the flywheel. 3. Install the bolts that hold the transmission case to the flywheel housing. 4. Remove tooling (B) from under the engine oil pan. 5. Put bracket assemblies (1) and mount assemblies (2) in position, and install the bolts that hold them. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2021/2/12

  33. 926 WHEEL LOADER 4NB00001-02075 (MACHINE) POWERED BY 3204 ENGI... 6/8 6. Install two steering cylinder crossover tubes (3). Connect hose assembly (4). Install tube assembly (5). 7. Install tube assemblies (6) and (7). Put parking brake air line (8) in position, and install clip (9). 8. Check the condition of the seals in the face of brackets (10) and (11). Put the cable ends in the slots of the directional and speed control spools. Push the face of brackets (10) and (11) against the transmission case, and install the bolts. Make sure forward and reverse and all four speeds can be obtained with the transmission shift lever on the steering column. NOTE: If the shift cables are not operating properly, see Transmission Control Linkage Adjustments in Testing And Adjusting. 9. Connect transmission neutralizer hose assembly (12). 10. Put the governor control cable assembly through the engine firewall, and install two clips (13) (one shown). https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2021/2/12

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