SHAFT-PLANETARY 1171292 - Caterpillar

Start By:
Remove the swing brake. Refer to Disassembly and Assembly, "Swing Parking Brake - Remove".
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, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products.Dispose of all fluids according to local regulations and mandates.
Note: Cleanliness is an important factor. Before the disassembly procedure, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.
Illustration 1 g00773238
Use two people to position disc housing (1) with the flange for the motor on top. Remove elbow fitting (2) from disc housing (1). Disc housing (1) weighs approximately 45 kg (99 lb).
Illustration 2 g00773243
Use two people to position disc housing (1) in a press with the flange for the motor on the bottom. Center tool (A) on pressure plate (4). Apply pressure to Tool (A) until pressure plate (4) moves. Use Tool (B) to remove ring (3) from disc housing (1). Slowly release the pressure from Tool (A).
Illustration 3 g00773245
Use two people to remove disc housing (1) from the press. Remove pressure plate (4) from the disc housing.
Illustration 4 g00773246
Remove 25 inner springs and 25 outer springs (5) from piston (6). Note: The springs are part of the brake disc kit.
Illustration 5 g00773251
Use two people to position disc housing (1) with the flange for the motor on top. Use Tool (C) to remove centering ring (7) from disc housing (3).
Illustration 6 g00773257
Remove O-ring (8) from centering ring (7).
Illustration 7 g00773259
Use Tool (B) to remove ring (9) from disc housing (1).
Illustration 8 g00773267
Remove shim (10) from disc housing (1).
Illustration 9 g00773271
Remove brake disc kit (11) from disc housing (1).
Illustration 10 g00773275
Use two people to position disc housing (1) in a press with the flange for the motor on top. Center Tool (A) on piston (6). Press piston (6) out of disc housing (1).
Illustration 11 g00773279
Remove backup rings (12) and seal (13) from disc housing (1).
Illustration 12 g00773280
Remove brake seal kit (14) from piston (6).