NUT-HEX 3580259 - Caterpillar

Removal Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     138-7573     Link Bracket     1    
Illustration 1 g01323519
Disconnect tube assembly (1). Remove bolts (3). Remove elbow (4) and the O-ring seal. Remove bolts (6). Remove elbow (7) and the O-ring seal.
Use Tooling (A) and a suitable lifting device onto auxiliary water pump (2). The weight of auxiliary water pump (2) is approximately 31 kg (69 lb). Remove nuts (5). Remove auxiliary water pump (2) .
Illustration 2 g02946304
Remove O-ring seal (8) from auxiliary water pump (2) .Installation Procedure
Install water pump (2) in the reverse order of removal.