VALVE GP- 2800426 - Caterpillar

1. Remove O-ring seals (1) from the oil filter base.2. Remove bolts (2), covers (3) and the gaskets from the oil filter base.3. Remove the spring and plunger from behind both of the covers.Assemble Oil Filter Base
Plunger (1) is for the cooler bypass, and plunger (7) is for the oil filter bypass.1. Install plungers (1) and (7) and springs (2) in each side of the oil filter base.2. Put gaskets (3) and covers (4) in position on the oil filter base. Install bolts (5) to hold them.3. Put clean engine oil on the two O-ring seals that go between the engine oil cooler and the oil filter base. Put the O-ring seals in position on the oil filter base.End By:a. install oil filter and oil filter base