PULLEY-CRANKSHAFT 1773308 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A - Loctite 263 -
Personal injury can result from hydraulic oil pressure and hot oil.Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.Make sure all of the work tools have been lowered to the ground, and the oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.
Release the system pressure. Refer to Operation and Maintenance Manual, "System Pressure - Release" for the correct procedure.
Drain the hydraulic oil. Refer to Operation and Maintenance Manual, "Hydraulic System Oil - Change" for the correct draining and filling procedures.
Illustration 1 g02902556
Open door assembly (1).
Illustration 2 g06135064
Disconnect hose assemblies (2), (3), (4), and (5).
Illustration 3 g02902677
Remove nuts (6) and piston pump (7).Installation Procedure
Install piston pump (7) in the reverse order of removal.
Apply Tooling (A) to the threads of nuts (6).