PIN AS 2572758 - Caterpillar

Removal Procedure
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g01141238
Remove the bolts, the retainers, and retaining ring (2) that fastens tube (1) to the elbow on auxiliary water pump (8).
Remove the bolts, the retainers, and retaining ring (4) that fastens tube (5) to the thermostatic control valve group (9).
Remove bolts (6) that fasten thermostatic control valve group (9) to bracket (10).
The weight of thermostatic control valve group (9) is approximately 28 kg (62 lb). Use a suitable lifting device to remove thermostatic control valve group (9). Remove bolts (3) that fasten thermostatic control valve group (9) to auxiliary water pump (8). Remove thermostatic control valve group (9).
Auxiliary water pump (8) must be removed with the accessory drive shaft and the accessory drive gear as a unit. The weight of auxiliary water pump (8), the accessory drive shaft, and the accessory drive gear is approximately 48 kg (106 lb). Use a suitable lifting device to remove auxiliary water pump (8), the accessory drive shaft, and the accessory drive gear. Remove bolts (7) that fasten auxiliary water pump (8) to the front drive housing. Remove auxiliary water pump (8), the accessory drive shaft, and the accessory drive gear as a unit.
Illustration 2 g01141236
Remove bolts (11) that fasten accessory drive gear (12) to accessory drive shaft (13).
Illustration 3 g01141237
Remove bolts (14) and thrust washers (15) that secure accessory drive shaft (13) to auxiliary water pump (8).