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Caterpillar Cat 953 TRACK LOADER (Prefix 20Z) Service Repair Manual (20Z00267 and up)

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Caterpillar Cat 953 TRACK LOADER (Prefix 20Z) Service Repair Manual (20Z00267 and up)

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  1. Service Repair Manual Models 953TRACK LOADER

  2. 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 ENGI... 7/25 START BY: a. remove final drives and sprocket assemblies b. remove track brakes https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2022/1/6

  3. 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 ENGI... 8/25 1. Drain the oil from the final drive. 2. On a 953 final drive, remove shaft (1). Remove six bolts and retainer (2). On a 943 final drive there can be shims under retainer (2). 3. Fasten a hoist to the final drive, and put the final drive in position on tooling (A), and install four bolts and nuts to hold the final drive in place. Weight is: 943 - 359 kg (785 lb.), 953 - 495 kg (1100 lb.). 4. Remove the bolts that hold cover (3) in place, and use two 3/8"-16 NC forcing screws to remove the cover. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2022/1/6

  4. 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 ENGI... 9/25 5. Use tooling (B) to remove button (4) (if applicable) from the cover if a replacement is necessary. 6. Install a 3/8"-16 NC forged eyebolt in shaft (sun gear) (5), and remove the shaft. 7. Remove the bolts that hold planet carrier (7) to the sprocket hub, and install two 5/8"-11 NC forcing screws (6) to loosen the planet carrier. 8. Install two 3/8"-16 NC forged eyebolts in the planet carrier, and fasten a hoist. Remove planet carrier (7). Weight is: 943 - 52 kg (115 lb.), 953 - 79 kg (175 lb.). 9. Bend the locks away from bolts (8). Remove bolts (8), the locks and retainers (9) from the planet carrier. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2022/1/6

  5. 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 EN... 10/25 10. Use tooling (C) to remove planet shafts (10) from the planet carrier. NOTICE The bearings in planet gears (11) are loose and will fall out of the gears. 11. Move planet gears (11) to the center of the planet carrier one at a time, and remove them. 12. Remove bearings (12) from the planet gears. 13. Remove plate (13) and the shim(s) from the spindle. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2022/1/6

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  7. 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 EN... 11/25 NOTE: Any time plate (13) is removed new bolts must be used during final assembly. 14. Use pry bars to loosen ring gear (14) and the ring gear hub on the spindle. Use two men to remove ring gear (14) and the hub as a unit. Weight is: 943 - 23 kg (50 lb.), 953 - 32 kg (70 lb.). 15. Remove ring (15) from ring gear (14). Remove hub (16) from the ring gear. 16. Install tooling (D) on the sprocket hub and fasten a hoist. Remove sprocket hub (19). Weight is: 943 - 84 kg (185 lb.), 953 - 117 kg (260 lb.). Remove bearing cone (17) and O-ring seal (18) from the sprocket hub. 17. Carefully remove Duo-Cone seals (20) from the sprocket hub and spindle. Be careful not to damage the contact surfaces of the seals. Inspect the rubber seals of the Duo-Cone seals for any cuts or damage. 18. Remove bearing cups (21) from the sprocket hub. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2022/1/6

  8. 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 EN... 12/25 19. Use tooling (E) to remove bearing cone (22) from the spindle. 20. Remove bolts (23) that hold the spindle to the final drive case. Put marks on the spindle and case as to the location of the spindle on the case. The spindle must be installed in the same position on the case because there are holes in the spindle that let oil move through the final drive case. 21. Fasten tooling (D) to spindle (24), and fasten a hoist. Install two 5/8"-11 NC forcing screws in the spindle, and remove the spindle. Weight is: 943 - 36 kg (80 lb.), 953 - 68 kg (150 lb.). 22. Use tooling (F) to remove the bearing race (943) or bearing (25) (953) from the spindle. Remove O-ring seal (26) from the spindle. 23. Remove gear (27) from the final drive case. On a 953 final drive case, two 1/2"-13 NC forged eyebolts can be installed in gear (27) to make the removal of the gear easier. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2022/1/6

  9. 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 EN... 13/25 (Earlier 943) NOTICE Bearing (28) (earlier 943) or bearing race (30) (later 943 and 953) can be removed as shown in Steps 24, 25 or 26. Remove the bearing or bearing race only if a replacement is necessary because the bearing or bearing race will be damaged when it is removed. 24. Use tooling (G) to remove bearing (28). (Earlier 943) 25. Install two 3/8"-16 NC forcings screws (29) in the back side of gear (27) (943 earlier), and use the forcing screws to push the bearing off the gear. (Later 943 and 953) 26. On a 943 (later) and the 953 final drive gear it will be necessary to heat bearing race (30) for removal. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2022/1/6

  10. 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 EN... 14/25 NOTICE Do not let pinion (32) fall out of the case when it is removed. 27. Install a 5/8"-11 NC forcing screw (31) in the final drive case, and use the forcing screw to push pinion (32) out of the case. 28. Use tooling (B) to remove thrust plate (33) from the case if a replacement is necessary. 943 953 29. On a 943 final drive remove bolt (35) and the washer from shaft (34). Remove shaft (34) from the pinion. Remove the O-ring seal from the shaft. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2022/1/6

  11. 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 EN... 15/25 30. Use tooling (H) and a press to remove the bearing cones from the pinion. 31. Remove final drive case (36) from tooling (A), and turn it up side down. Weight is: 943 - 72 kg (160 lb.), 953 - 90 kg (200 lb.). 32. Use tooling (J) to remove the bearing cup for the pinion bearing from final drive case (36). For more information see Bearing Damage Causes And Corrections, Form No. FE036004, And Analyzing Gear Failures, Form No. FEG45134. Assemble Final Drives And Sprocket Assemblies https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2022/1/6

  12. 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 EN... 16/25 1. Use a brass bar and hammer to install thrust plate (1) with the oil grooves up as showns. NOTICE All bearing cups and cones must be installed tightly against their seats to get a correct bearing preload. 2. Heat bearing cones (4) to a maximum temperature to 138°C (280°F). Do not heat the bearing longer than 8 hours. Install bearing cones (4) on pinion (5). Use a press to push bearing cones (4) tightly against their seats after the bearing cones have become cool. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2022/1/6

  13. 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 EN... 17/25 NOTE: Steps 3 and 4 are for 943 drives only. 3. Install O-ring seal (2) on shaft (3). 4. Put shaft (3) in position in pinion (5), and install bolt and washer (6) to hold the shaft in the pinion. 5. Use tooling (B) to install the bearing cup for the pinion in the final drive case. 6. Put clean oil on the bearing cones on the pinion. Install pinion (5) in the final drive case. Put the bearing cup and retainer (7) in position, and install four 3/8"-16 NC bolts 1 1/2 in. long in the retainer to push the bearing cup far enough into the final drive case to install the correct bolts. Remove the 1 1/2in. long bolts, and install the correct bolts in the retainer. Tighten the bolts and be sure retainer (7) is tight against the final drive case. 7. Check pinion (5) for end play, and measure the torque needed to turn the pinion. If the end play is not more than 0.5 mm (.02 in.), and the torque is 1.1 N·m (10 lb.in.) or less, go to Step 8. If the end play is more than 0.5 mm (.02 in.), and retainer (7) is tight against the case, it will be necessary to install new parts. If the rotation torque is more than 1.1 N·m (10 lb.in.), install one 8G588 Shim under retainer (7), and check the torque again. Install only one shim at a time, and do not use more than three shims. If the torque is too high with three shims installed, and there is not foreign material under the cups, cones, or retainer, it will be necessary to install new parts. 8. Turn the final drive case over, and put it in position on tooling (A). Use four bolts and nuts to hold the final drive case in position on tooling (A). Weight is: 943 - 72 kg (160 lb.), 953 - 90 kg (200 lb.). https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2022/1/6

  14. 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 EN... 18/25 Earlier 943 Later 943 And 953 9. Heat the bearing (earlier 943) or bearing race (later 943 or 953) for gear (8) to a maximum temperature of 120°C (248°F). Do not heat the bearing longer than 8 hours. Install the bearing (earlier 943) or bearing race (later 943 or 953) on gear (8). On an earlier 943, the side of the bearing with the larger radius on the inside diameter must be toward the shoulder on the gear. After the bearing has become cool, use a press to push the bearing tightly against its seat. Put clean oil on the bearing. Later 943 and 953 10. Install gear (8) in the final drive case. On a later 943 or 953 final drive, two 1/2"-13 NC forged eyebolts can be installed in gear (8) to make the installation of the gear easier. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2022/1/6

  15. 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 EN... 19/25 Earlier 943 Later 943 And 953 11. Lower the temperature of race (9) (earlier 943) or bearing (9) (later 943 or 953), and install the spindle. Be sure the race or bearing is tight against its seat. Install O-ring seal (10) on the spindle. 12. Install two 5/8"-11 NC guide bolts (12), at least 6 in. long, in the final drive case. Fasten tooling (D) and a hoist to spindle (11). Install the spindle in its original position on the final drive case. The spindle must be installed in the same position on the case because there are holes in the spindle that let oil move through the final drive case. Weight of the spindle is: 943 - 36 kg (80 lb.), 953 - 68 kg (150 lb.). 13. Put 9S3263 Thread Lock on the threads of bolt (14), and install the bolt in the hole over the pinion. The 9S3263 Thread Lock will prevent oil leakage at bolt (14). Install the remainder of the https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2022/1/6

  16. 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 EN... 20/25 bolts that hold the spindle to the final drive case, and tighten all the bolts to a torque of 270 ± 25 N·m (200 ± 18 lb.ft.). 14. Heat bearing cone (13) to a maximum temperature of 120°C (248°F). Do not heat the bearing longer than 8 hours. Install bearing cone (13) on the spindle. After the bearing cone has become cool, push the bearing cone tightly against its seat. Use a thickness gauge or check for an air gap to be sure the bearing is against its seat. Put clean oil on the bearing cone. 15. Lower the temperature of bearing cups (15), and install the bearing cups in the sprocket hub. Use a thickness gauge to be sure the bearing cups are against their seats. 16. Use tool (C) to install Duo-Cone seals (16) in the sprocket hub and spindle. NOTE: The rubber seals and all surfaces that make contact with the seals must be clean and dry. After installation of the seals, put oil on the contact surfaces of the metal seals. 17. Fasten tooling (D) and a hoist to the sprocket hub. Put the sprocket hub in position on the spindle. Weight is 943 - 84 kg (185 lb.), 953 - 118 kg (260 lb.). 18. Install the outer bearing cone on the spindle, and put clean oil on the bearing cone. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2022/1/6

  17. 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 EN... 21/25 19. Put hub (17) in position in ring gear (19) as shown, and install ring (18) to hold the ring gear and hub together. 20. Use two men to put ring gear (19) and the hub in position on the spindle. Weight is: 943 - 23 kg (50 lb.), 953 - 32 kg (70 lb.). NOTE: Use new bolts in retainer (20) any time the final drive is disassembled. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2022/1/6

  18. 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 EN... 22/25 21. Put a preload on the sprocket hub bearings as follows: a. Put retainer (20) in position on the spindle without shims, and install three old bolts at even intervals in the retainer. b. Turn the sprocket hub at 10 ± 5 rpm during the adjustment procedure. c. Gradually tighten the three bolts in the retainer to a torque of 38 ± 1 N·m (28 ± 1 lb.ft.) to remove the end play in the bearings. d. Separately loosen and again tighten each bolt in the retainer until the bolt is against (seats) the retainer plate. 3. Tighten the three bolts to a torque of: 943 - 12 ± 2 N·m (108 ± 18 lb.in.), 953 - 22 ± 5 N·m (193 ± 45 lb.in.). f. Measure the shim gap at the three bolts as close to the bolts as possible. Remove the retainer. g. Install shims (21) with a total thickness the same as the average gap measured in Step F + 0.00 - 0.10 mm (+ 0.000 - 0.004 in.). Put retainer (20) in position, and install new bolts to hold the retainer and shims in place. h. Turn the sprocket hub at 10 ± 5 rpm while the bolts in the retainer are tightened. Tighten the bolts in a sequence around the retainer to 10 ± 1 N·m (7 ± 1 lb.ft.), then to 50 ± 5 N·m (37 ± 4 lb.ft.), then to 135 ± 15 N·m (100 ± 11 lb.ft.). 22. Install the bearings in planet gears (22). Put all three planet gears (22) in position in the planet carrier. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2022/1/6

  19. 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 EN... 23/25 23. Fasten tooling (D) and a hoist to the planet carrier. Put the planet carrier in position in a press with supports (24) under the bosses for planet shafts (23). Weight of the planet carrier is: 943 - 52 kg (115 lb.), 953 - 79 kg (175 lb.). Start planet shaft (23) in the planet gear with the groove in the shaft up as shown. 24. Use the press to push planet shaft (23) through the planet gears until the grooves in the top of the shafts are even with the planet carrier as shown. Be sure to put a support under the boss on the planet carrier while the planet shaft is pushed through the planet gear. 25. Put plates (26) and locks (25) in position on the planet carrier, and install the bolts that hold them in place. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2022/1/6

  20. 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 EN... 24/25 26. Install O-ring seal (28) on the sprocket hub. 27. Turn the planet carrier over, and install two 3/8"-16 NC forged eyebolts (27). Fasten a hoist to the planet carrier, and put the planet carrier in position on the sprocket hub. Weight is: 943 - 52 kg (115 lb.), 953 - 79 kg (175 lb.). Install the bolts that hold the planet carrier to the sprocket hub, and tighten to a torque of 200 ± 25 N·m (150 ± 20 lb.ft.). 28. Install a 3/8"-16 NC forged eyebolt in shaft (sun gear) (29), and install the shaft (sun gear) in the planet. 29. Use tooling (B) to install button (30) in cover (31). 30. Use 7M7260 Liquid Gasket Material as a seal for cover (31) and the planet carrier. Put cover (31) in position on the planet carrier, and install the bolts that hold it in place. Put 9S3263 Thread Lock on the threads of the bolts that hold the cover in place. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2022/1/6

  21. 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 EN... 25/25 31. Fasten a hoist, and remove the final drive from tooling (A). Weight is: 943 - 359 kg (785 lb.), 953 - 495 kg (1100 lb.). END BY: a. install track brakes b. install final drives and sprocket assemblies Copyright 1993 - 2022 Caterpillar Inc. Thu Jan 6 01:13:17 UTC+0800 2022 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2022/1/6

  22. 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 ENGI... 1/5 Shutdown SIS Previous Screen Product: TRACK LOADER Model: 953 TRACK LOADER 20Z Configuration: 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 ENGINE Disassembly and Assembly 943 & 953 TRACK-TYPE LOADER POWER TRAIN Media Number -SENR4215-00 Publication Date -01/03/1985 Date Updated -11/10/2001 Pump (Track Brake Release) SMCS - 4050-011; 4050-012; 4050-015; 4050-016 Remove Pump (Track Brake Release) START BY: a. lift cab (24° position) NOTE: Earlier model loaders used a hand pump mounted in the cab to release the parking brake pressure. The later model loaders have eliminated the cab mounted hand pump as well as the bleed tubes and U-tubes which were located in the engine compartment. FT1845 Brake Release Group is available as a replacement for the earlier used hand pump. See Service Magazine, April 16, 1984, for instructions on construction and usage of the FT1845 Brake Release Group. 1. Disconnect oil lines (1) from pump (2) for track brake release. 2. Loosen the setscrews in knobs (3). Hold the pump and valve stems, and loosen knobs (3) and remove. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2022/1/6

  23. 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 ENGI... 2/5 3. Remove nuts (4) and pump (2) for track brake release. Install Pump (Track Brake Release) 1. Put the pump for track brake release in position on the cab, and install nuts (2) that hold it in place. 2. Hold the pump and valve stems, and install knobs (1). Tighten the setscrews in the knobs that hold them in place. 3. Connect oil supply line (3) from the oil pan on the hydrostatic power control unit to the pump. 4. Connect oil pressure line (4) from the bracket on the left side of the frame to the pump. END BY: a. lower cab (24° position) b. remove air from track brakes * *For the procedure to remove air from the track brakes, see Testing And Adjusting. Disassemble Pump (Track Brake Release) START BY: a. remove pump (track brake release) https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2022/1/6

  24. 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 ENGI... 3/5 1. Loosen collar (1), and remove the pump stem assembly. 2. Loosen collar (2), and remove the brake engage stem. 3. Remove fittings (3) from the block. 4. Use tool (A) to remove snap ring (4) from the block. Remove plug (5), spring, stem, washers and ball for the pump relief valve from the block. 5. Put identification on the block as to the location of the components. 6. Use tool (A) to remove snap rings (6) from the block. Remove plug (7), spring and valve from block. Remove plug (8), spring and valve from block. Remove the plug, spring and valve from port (9) after plug (8), spring and valve are removed. Assemble Pump (Track Brake Release) 1. Be sure all passages in the block are clear. Put clean oil on all parts before assembly. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2022/1/6

  25. 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 ENGI... 4/5 2. Install check valve (1), spring (3) and plug (5) in the block. Plug (5) must be pushed past the opening for plug (6) so plug (6) can hold plug (5) in place. 3. Install brake engage valve (2), spring (4) and plug (6) in the block as shown. Use tool (A) to install snap ring (7) in the block. 4. Install check valve (8), spring (9) and plug (10) in the block. Use tool (A) to install snap ring (11) in the block. 5. Install ball (12), stem and washers (13), spring (14) and plug (15) for the pump relief valve in the block. Use tool (A) to install snap ring (16) in the block. 6. Install pump stem and collar (17) in the block as shown. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2022/1/6

  26. 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 ENGI... 5/5 7. Be sure O-ring seal (19) is in position on the brake engage stem. Install brake engage stem and collar (18) in the block as shown. 8. Install fittings (20) and (21) in the block as shown. END BY: a. install pump (track brake release) Copyright 1993 - 2022 Caterpillar Inc. Thu Jan 6 01:14:12 UTC+0800 2022 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2022/1/6

  27. 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 ENGI... 1/6 Shutdown SIS Previous Screen Product: TRACK LOADER Model: 953 TRACK LOADER 20Z Configuration: 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 ENGINE Disassembly and Assembly 943 & 953 TRACK-TYPE LOADER POWER TRAIN Media Number -SENR4215-00 Publication Date -01/03/1985 Date Updated -11/10/2001 Track Brakes SMCS - 4050-011; 4050-012; 4050-015; 4050-016 Remove Track Brakes START BY: a. remove final drives https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2022/1/6

  28. 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 ENGI... 2/6 1. Disconnect oil lines (3) from housing (5). 2. Remove bolts (1) and oil manifold (2). 3. Loosen bolts (4) evenly to release the tension in the springs in housing (5) for the track brake. Remove bolts (4) and housing (5). 4. Bend the ends of two short pieces of wire. Use the wires to remove discs (6) and plates (7) from ring (8). 5. Remove ring (8) from the final drive case only if a replacement is necessary. Install Track Brakes 1. Put 6V6640 Gasket Maker on the outside diameter of ring (2). Install ring (2) on the final drive case with the holes in the ring in alignment with the bolt holes in the case. 2. Put clean SAE 30 oil on each brake disc (3) and brake plate (1) before assembly. NOTE: A brake disc is made of friction material, and there are five discs for each track brake. A brake plate is made of steel, and there are four plates for each track brake. 3. Install brake discs (3) and brake plates (1) in ring (2). Start and stop with a brake disc. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2022/1/6

  29. 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 ENGI... 3/6 4. Put brake housing (4) in position on the ring with the holes in the brake housing in alignment with the holes in the ring, and install the bolts that hold it in place. 5. Put oil manifold (5) in position on the final drive case, and install the bolts that hold it in place. 6. Connect oil lines (6) and (7) to the brake housing. END BY: a. install final drives Disassemble Track Brakes START BY: a. remove track brakes 1. Put two bars (1) across the plate as shown. Bars (1) are flat pieces of steel approximately 16.5 cm x 31.8 mm x 6.4 mm (6 1/2 in. x 1 1/4 in. x 1/4 in.). Put ring (2) over the bars as shown, and install two bolts (3) through ring (2) and the housing, and install washers and nuts on the bolts. Bolts (3) https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2022/1/6

  30. 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 ENGI... 4/6 are 3/8"-16 NC bolts, 5 in. long. Tighten bolts (3) evenly to put the springs in the track brake in compression. Use a soft hammer to push piston (4) through the plate so ring (5) can be removed. Use tool (A) to remove ring (5) from the piston. Bolts (3) are used to hold the springs in the track brake in compression so ring (5) can be removed. Ring (2), bars (1) and plate (6) can be released rapidly and cause injury if the tension in the springs is not released before bolts (3) are completely removed. Be sure all the tension in the springs is released before bolts (3) are removed. 2. Loosen bolts (3) evenly to release the tension in the springs in the track brake. 3. Remove bolts (3), ring (2), bars (1) and plate (6) from the track brake housing. 4. Remove two springs (7) from the track brake housing. 5. Use a soft hammer to push piston (4) out of the track brake housing. 6. Remove O-ring seal (8) from the parking brake housing. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2022/1/6

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  32. 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 ENGI... 5/6 7. Remove seal assemblies (9) and (10) from the piston. Assemble Track Brakes NOTE: Put clean oil on all parts before assembly. 1. Install seals (1) and (2) on the piston as shown. 2. Install piston (3) in the track brake housing as shown. 3. Install O-ring seal (4) on the track brake housing. 4. Install springs (5) in the track brake housing as shown with the inside diameters of the springs together and the outside diameters apart. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2022/1/6

  33. 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 ENGI... 6/6 5. Install plate (10) with the counterbore for the ring up. 6. Put two bars (6) across plate (10) as shown. Bars (6) are flat pieces of steel approximately 16.5 cm x 31.8 mm x 6.4 mm (6 1/2 in. x 1 1/4 in. x 1/4 in.) Put ring (7) over the bars as shown, and install two bolts (8) through ring (7) and the housing, and install washers and nuts on the bolts. Bolts (8) are 3/8"-16 NC bolts, 5 in. long. Tighten bolts (8) evenly to put the springs in the track brake in compression. Use a soft hammer to push the piston through the plate so ring (9) can be installed. Use tool (A) to install ring (9) in the groove in the piston. 7. Loosen bolts (8) evenly and let the springs in the parking brake push plate (10) over ring (9). Ring (9) holds plate (10) in place. Plate (10) holds the springs in compression. Ring (9) and plate (10) can be released rapidly and cause injury if ring (9) is not completely engaged in the groove in the piston and counterbore in plate (10) before bolts (8) are removed. Do not remove bolts (8) until ring (9) is completely in the counterbore in plate (10) and engaged the groove in the piston. 8. Remove bolts (8), ring (7) and bars (6) from the track brake housing. END BY: a. install track brakes Copyright 1993 - 2022 Caterpillar Inc. Thu Jan 6 01:15:08 UTC+0800 2022 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2022/1/6

  34. 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 ENGI... 1/31 Shutdown SIS Previous Screen Product: TRACK LOADER Model: 953 TRACK LOADER 20Z Configuration: 953 LGP TRACK LOADER 20Z00267-UP (MACHINE) POWERED BY 3204 ENGINE Disassembly and Assembly 943 & 953 TRACK-TYPE LOADER POWER TRAIN Media Number -SENR4215-00 Publication Date -01/03/1985 Date Updated -11/10/2001 Track Motors SMCS - 4351-015; 4351-011; 4351-012 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2022/1/6

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