BIT-END-RH 8E9785 - Caterpillar

Removal Procedure
Start By:
Release the hydraulic system pressure.
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.
Illustration 1 g02115234
Remove pilot relief valve (1).
Illustration 2 g02115254
Remove O-ring seals (2), (3), and (4). Installation Procedure
Install pilot relief valve (1) in the reverse order of removal.
Tight pilot relief valve (1) to a torque of 118 10 N m (85 7 lb ft).