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349F and 352F Excavators Machine Systems Caterpillar


Final Drive - Disassemble

Usage:

352F-VG A9J

Disassembly Procedure

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Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     1P-2420     Transmission Repair Stand     1    
B     138-7575     Link Brackets     2    
C     4C-8359     Eyebolt     3    
D     138-7574     Link Brackets     2    
E     154-6182     Forcing Bolts     3    

Start By:

  1. Remove the final drive and travel motor.
  2. Remove the sprocket.
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    Illustration 1g02431160

  1. Remove coupling (1) from final drive (2) .

  1. Attach a suitable lifting device to the final drive, and turn final drive (2) over 180 degrees. The weight of final drive (2) is approximately 590 kg (1300 lb).
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    Illustration 2g01207796

  1. Attach the final drive to Tooling (A) . Put an alignment mark across the sections of the final drive for assembly purposes. All parts must be reinstalled in the original locations.

  1. Remove setscrews (3) .
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    Illustration 3g01207801

  1. Attach Tooling (B) and a suitable lifting device to cover (5) . The weight of cover (5) is approximately 52 kg (115 lb).

    Note: Use a soft faced hammer in order to break the seal between cover (5) and the ring gear.

  1. Remove bolts (4) , the washers, and cover (5) .
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    Illustration 4g01207835

  1. Remove spacer (6) .
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    Illustration 5g02431238

  1. Remove shims (7) .

  1. Remove socket head bolts (8) and ring gear (9) .
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    Illustration 6g01207864

  1. Remove sun gear (10) .

  1. Remove carrier assembly (11) .
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    Illustration 7g02431405

  1. Remove spacer (17) .

  1. Remove retaining ring (12) , thrust washer (13) , planetary gear (14) , bearing (16) , and thrust washer (18) . Repeat for the remaining planetary gears.
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    Illustration 8g02431518

  1. Remove retaining ring (19) and sun gear (20) from the carrier.
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    Illustration 9g02431519

  1. Remove spacer (21) .

  1. Attach Tooling (C) and a suitable lifting device to carrier assembly (19) . The weight of carrier assembly (19) is approximately 45 kg (100 lb). Remove carrier assembly (22) .
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    Illustration 10g02431600

  1. Use a suitable punch and a suitable hammer to drive spring pin (24) into planetary shaft (23) . Remove planetary shaft (23) , thrust washer (25) , planetary gear (26) , bearing (27) , and thrust washer (28) . Remove spring pin (24) from planetary shaft (23) . Repeat for the remaining planetary gears.
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    Illustration 11g02431636

  1. Remove retaining ring (29) and sun gear (30) from the carrier.
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    Illustration 12g02431639

  1. Remove spacer (31) .
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    Illustration 13g02431641

  1. Attach Tooling (C) and a suitable lifting device to carrier assembly (32) . The weight of carrier assembly (32) is approximately 64 kg (140 lb). Remove carrier assembly (32) .
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    Illustration 14g02431642

  1. Use a suitable punch and a suitable hammer to drive spring pin (34) into planetary shaft (33) . Remove planetary shaft (33) , thrust washer (35) , planetary gear (36) , bearings (37) , and thrust washer (38) . Remove spring pin (34) from planetary shaft (33) . Repeat for the remaining planetary gears.
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    Illustration 15g02431649

  1. Attach Tooling (C) and a suitable lifting device to ring gear (39) . The weight of ring gear (39) is approximately 82 kg (180 lb). Remove ring gear (39) from sprocket housing (40) .
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    Illustration 16g02431650

  1. Remove O-ring seal (41) from sprocket housing (40) .

    Note: Mark coupling gear (43) for assembly purposes.

  1. Remove bolts (42) from coupling gear (43) .
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    Illustration 17g02431651

    Note: Mark the orientation of coupling gear (43) for assembly purposes.

  1. Use Tooling (E) to remove coupling gear (43) . Remove coupling gear (43) .
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    Illustration 18g02431653
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    Illustration 19g02431654

  1. Remove shims (44) from the motor housing.

  1. Attach Tooling (D) and a suitable lifting device to sprocket housing (40) . The weight of sprocket housing (40) is 127 kg (280 lb). Remove the sprocket housing (40) and bearing cone (45) .
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    Illustration 20g02431676

  1. If necessary, remove dowel pins (46) .

  1. Remove Duo-Cone seal (47) from the motor housing.
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    Illustration 21g02431677

  1. Remove Duo-Cone seal (51) from the sprocket housing.

  1. Remove bolts (48) . Use Tooling (E) in Holes (Z) to remove plate (49) . Remove plate (49) .

  1. Remove bearing cone (50) .
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    Illustration 22g02431679

  1. Remove bearing cups (52) from the sprocket housing.

  1. Remove O-ring seal (53) .

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