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325C Forest Machines Machine Systems Caterpillar


Swing Drive - Disassemble

Usage:

325C FM G1L

Disassembly Procedure

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Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     138-7573     Link Bracket     2    
B     5P-5197     Pliers     1    
C     -     Wood Block     2    
D     1P-0510     Driver Gp     1    
E     4C-9493     Sleeve     1    

Start By:

  1. Remove the swing drive. Refer to Disassembly and Assembly, "Swing Drive - Remove".

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NOTICE

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.

Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.

Dispose of all fluids according to local regulations and mandates.

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    Illustration 1g00518369

  1. Position the swing drive on wood blocks, as shown. The weight of the swing drive is approximately 310 kg (683 lb).

  1. Drain the oil from the swing drive into a suitable container for storage or disposal. The capacity of the swing drive is 10 L (3 US gal).

  1. Put an alignment mark on the cover and the housing of the swing drive for assembly purposes.

  1. Remove bolts (1) and cover (2) .

  1. Fasten Tooling (A) to cover (2) .
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    Illustration 2g00518372

  1. Fasten a suitable lifting device to Tooling (A), as shown. Carefully remove cover (2) from the ring gear of the swing drive.
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    Illustration 3g00518397

  1. Use two people in order to remove carrier assembly (3). The weight of the carrier assembly is approximately 23 kg (50 lb).

  1. Use the following procedure to disassemble carrier assembly (3) .
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      Illustration 4g00518398
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      Illustration 5g00518400

    1. Remove sun gear (4) from carrier assembly (3) .

    1. Drive spring pin (6) into planetary shaft (5) with a hammer and a punch.

    1. Remove planetary shaft (5), thrust washers (9), and planetary gear (7) from the carrier assembly.

    1. Remove bearing (8) from planetary gear (7) .

    1. Remove spring pin (6) from planetary shaft (5) with a hammer and a punch.

    1. Repeat Steps 8.a through 8.e in order to remove the other three planetary gears from the carrier assembly.
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      Illustration 6g00518543

    1. Remove retaining ring (10) with a screwdriver. Remove gear (11) from carrier assembly (3) .
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      Illustration 7g00518549

    1. Remove retaining ring (12) from gear (11) .
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    Illustration 8g00518551

  1. Remove retaining ring (15) that holds carrier assembly (13) in position.

  1. Remove spacer (14) from carrier assembly (13) .
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    Illustration 9g00908506

  1. Slide a piece of steel bar stock between the planetary gears in carrier assembly (13), as shown. Make sure that the steel bar stock is centered in the carrier assembly. Fasten a suitable lifting device to the steel bar stock, as shown. Slowly lift carrier assembly (13) from the swing drive housing. The weight of carrier assembly (13) is approximately 39 kg (86 lb).

  1. Use the following procedure to disassemble carrier assembly (13) .
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      Illustration 10g00518553
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      Illustration 11g00518555

    1. Drive spring pin (16) into planetary shaft (17) with a hammer and a punch.

    1. Remove planetary shaft (17), thrust washers (20), and planetary gear (18) from the carrier assembly.

    1. Remove bearings (19) from planetary gear (18) .

    1. Remove spring pin (16) from planetary shaft (17) with a hammer and a punch.

    1. Repeat Steps 12.a through 12.d in order to remove the other three planetary gears from the carrier assembly.
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    Illustration 12g00518581

  1. Use two people in order to remove ring gear (21) from the swing drive housing. The weight of the ring gear is approximately 47 kg (104 lb).
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    Illustration 13g00904287

  1. Use Tooling (B) to remove retaining ring (22) .

  1. Put swing drive housing (25) in a press. The combined weight of the swing drive housing, the pinion shaft, and the bearing cage is approximately 151 kg (333 lb).
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    Illustration 14g01044642

    Note: Use care when components are pushed from the swing drive housing. Avoid injury to personnel. Also, avoid damage to components.

  1. Push pinion shaft (23) from the swing drive housing. The weight of pinion shaft (23) is approximately 50 kg (110 lb).

  1. Remove the swing drive housing and the pinion shaft from the press. The weight of the swing drive housing is approximately 95 kg (209 lb).
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    Illustration 15g01044786

  1. Place swing drive housing (26) sideways. Remove the bolts (24) from the swing drive. Remove bearing cage (25) from the swing drive.
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    Illustration 16g01044788

  1. Remove two lip type seals (27) and O-ring seal (28) from bearing cage (25) .
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    Illustration 17g01044793
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    Illustration 18g01044798

    Note: Use care when the components are pushed from the swing drive housing. Avoid injury to personnel. Also, avoid damage to components.

  1. Place swing drive (26) in a press. Use Tooling (D) to push bearing (29), spacer (30), and bearing (31) from the swing drive.

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