PUMP GP- 4676520 - Caterpillar

Start By:
Remove the final drives.
Illustration 1 g01195912
Install Tooling (A) and a suitable lifting device to planetary carrier (3) .
Remove bolts (1). Remove planetary carrier (3) and the two O-ring seals from the hub. The weight of planetary carrier (3) is approximately 137 kg (302 lb).
Remove retainers (2) .
Illustration 2 g00841089
Place support under planetary carrier (3) in order to prevent damage. Use Tooling (B) and a suitable press to remove the planetary gear shafts.
Remove planetary gears (4) from planetary carrier (3) .
Illustration 3 g00841091
Remove bearing cones (5) from gears (4) .
Remove the bearing cups from each side of the gears.
Illustration 4 g00841092
Illustration 5 g01195913
Remove bolts (6) and retainer (7) .
Attach a suitable lifting device to hub (12) and ring gear (8). The weight of hub (12) and ring gear (8) is approximately 68 kg (150 lb). Remove hub (12) and ring gear (8) .
Illustration 6 g01195915
Turn over hub (9) and ring gear (8). Remove retaining ring (10). Attach a suitable lifting device to hub (9). The weight of hub (9) is approximately 37 kg (82 lb). The weight of ring gear (8) is approximately 32 kg (71 lb). Remove hub (9) .
Illustration 7 g00841095
Install Tooling (C) on hub (12). Note: Do not lift hub (12) too high. Do not allow hub (12) to contact the fitting on the hydraulic cylinder.
Use Tooling (C) to loosen hub (12) from spindle (13). Remove Tooling (C) .
Remove bearing cone (11) .
Illustration 8 g01195917
Install Tooling (D) and a suitable lifting device to hub (12). Remove hub (12) from spindle (13). The weight of hub (12) is approximately 180 kg (397 lb).
Illustration 9 g00841099
Turn over hub (12). Remove Duo-Cone seal kit (15). Use a hammer and a punch to remove bearing cup (16) .
Turn over the hub. Remove bearing cup (14) from the hub.Note: If the Duo-Cone seal will be reused, mark the seal kits for installation purposes.
Illustration 10 g00841101
Note: Bearing cone (18) may be damaged if the bearing cone is removed from spindle (13) .
Remove Duo-Cone seal (19) from spindle (13) .
If necessary, remove bearing cone (18) from the spindle.
Remove lip seal (17) from spindle (13) .