TANK & FILTER GP-HYDRAULIC 5196871 - Caterpillar

Start By:a. remove cylinder head assembly 1. Use Tool (A) to compress springs (1).
The locks can be thrown from the valve when the spring compressor is released if they are not in their correct position on the valve stem. To prevent possible personal injury, be sure to stay away from in front of the valve retainer and springs.
2. Remove the locks.3. Remove Tool (A), the valve, the rotocoil and the spring. If a valve can be used again, put identification on the valve for location at installation. 4. Use Tool (B) to check spring force. The specifications for the spring force are given in the Specifications Manual.5. Do Steps 1 through 4 again for the remainder of valves.Install Valves
1. Put clean engine oil on the valve stem. Install washer (3), spring (2), rotocoil (1) and the valve. 2. Use Tool (A) to compress the spring.3. Install locks (4) with the thick end up.
Locks can be thrown from valve when compressor is released, if they are not in their correct position on the valve stem.
4. Remove the compressor and hit the valve with a soft faced hammer to be sure locks are in their correct position on the valve.5. Do Steps 1 through 4 again for the remainder of the valves.End By:a. install cylinder head assembly