302.5C Mini Hydraulic Excavator Machine Systems Caterpillar


Final Drive and Travel Motor - Disassemble

Usage:

302.5C GBB

Disassembly Procedure

Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     1P-1857     Retaining Ring Pliers     1    
B     8B-7554     Bearing Cup Puller Gp     1    
C     1P-1855     Retaining Ring Pliers     1    
D     1P-1859     Retaining Ring Pliers     1    
E     1P-1863     Retaining Ring Pliers     1    
F     154-6181     Forcing Screw     2    
G     5P-5197     Retaining Ring Pliers As     1    

Start By:

  1. Remove the track motor. Refer to Disassembly and Assembly, "Final Drive and Travel Motor - Remove".



    Illustration 1g01176385

    ------ WARNING! ------

    Personal injury can result from being struck by parts propelled by a released spring force.

    Make sure to wear all necessary protective equipment.

    Follow the recommended procedure and use all recommended tooling to release the spring force.

    ----------------------

  1. Remove plug (1) and the O-ring seal.



    Illustration 2g01176386

  1. Remove spring (4) and washer (3) .

  1. Remove spool (2) .

  1. Repeat Steps 1 through Steps 2 for the opposite side.



    Illustration 3g01176387

    ------ WARNING! ------

    Personal injury can result from being struck by parts propelled by a released spring force.

    Make sure to wear all necessary protective equipment.

    Follow the recommended procedure and use all recommended tooling to release the spring force.

    ----------------------

  1. Remove bolts (5) and head assembly (6) .



    Illustration 4g01176388

  1. Remove bearing (7) .



    Illustration 5g01176389

  1. Remove port plate (8) .



    Illustration 6g01176390

  1. Remove barrel assembly (9) .



    Illustration 7g01176393

  1. Remove pistons (10), retaining plate (11), and bearing (12) .



    Illustration 8g01176394

  1. Remove pins (13) .



    Illustration 9g01176391

    ------ WARNING! ------

    Personal injury can result from being struck by parts propelled by a released spring force.

    Make sure to wear all necessary protective equipment.

    Follow the recommended procedure and use all recommended tooling to release the spring force.

    ----------------------

  1. Use a suitable press and Tooling (A) in order to remove retaining ring (14) .



    Illustration 10g01176392

  1. Remove washers (15) and spring (16) .



    Illustration 11g01176395

  1. Remove O-ring seal (17) and swashplate (18) .



    Illustration 12g01176396

  1. Remove balls (19), pistons (20), and the springs.



    Illustration 13g01176397

  1. Remove retaining ring (21) and cover (22) .



    Illustration 14g01176398

  1. Remove sun gear (24) and carrier (23) .



    Illustration 15g01176399

  1. Use Tooling (C) in order to remove retaining ring (25) .

  1. Remove washers (26), gears (27), and washers (28) .



    Illustration 16g01176400

  1. Use Tooling (D) in order to remove retaining ring (30) .

  1. Remove sun gear (29) .



    Illustration 17g01182922

  1. Use Tooling (C) in order to remove retaining rings (32) .

  1. Use Tooling (A) in order to remove retaining ring (31) .



    Illustration 18g01182924

  1. Use Tooling (B) in order to remove gear assembly (33) .



    Illustration 19g01182925

  1. Use Tooling (E) in order to remove retaining ring (34) .



    Illustration 20g01182926

  1. Use Tooling (C) in order to remove housing (35) .



    Illustration 21g01182927

  1. Remove Duo-cone seal gp (36) and ring (37) .



    Illustration 22g01182928

  1. Use Tooling (G) in order to remove retaining ring (38) .

  1. Remove bearing (39) .



    Illustration 23g01182929

  1. Remove Duo-cone seal gp (40) .



    Illustration 24g01182930

  1. Remove shaft (41) and bearing (42) .



    Illustration 25g01182932

  1. Remove bearing (42) from shaft (41) .



    Illustration 26g01182933

  1. Remove seal (43) .

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