3508C, 3512C and 3516C Marine Engines Auxiliary Water Pump - Remove Caterpillar


Auxiliary Water Pump - Remove
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1.1. Removal Procedure

Removal Procedure


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.




    Illustration 1g01141238

  1. Remove the bolts, the retainers, and retaining ring (2) that fastens tube (1) to the elbow on auxiliary water pump (8).

  2. Remove the bolts, the retainers, and retaining ring (4) that fastens tube (5) to the thermostatic control valve group (9).

  3. Remove bolts (6) that fasten thermostatic control valve group (9) to bracket (10).

  4. 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).

  5. 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 2g01141236

  6. Remove bolts (11) that fasten accessory drive gear (12) to accessory drive shaft (13).


    Illustration 3g01141237

  7. Remove bolts (14) and thrust washers (15) that secure accessory drive shaft (13) to auxiliary water pump (8).

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