ENGINE AR 7C0166 - Caterpillar

Removal Procedure
Start By:
Release pressure in the hydraulic system.
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 attachments have been lowered, 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.
Drain hydraulic oil. Refer to Operations and Maintenance Manual, "Hydraulic System Oil - Change" for the correct draining and filling procedures.
Illustration 1 g03682676
Remove panel (1).
Illustration 2 g03682681
Disconnect hose assemblies (3). Remove bolts (2) and hydraulic oil cooler (4). Installation Procedure
Install hydraulic oil cooler (4) in the reverse order of removal.