920 & 930 WHEEL LOADER VEHICLE SYSTEMS Caterpillar

start by:

a) remove hydraulic control valve

1. Remove the two bolts (1) that hold the valve body in position. Remove the valve body from the hydraulic tank.

2. Remove the O-ring seals from valve body (2).

3. Use tool (A) and remove rings (3).

4. Remove washers (4), springs (5) and valves (6) from valve body (2).

5. Put clean hydraulic oil on the parts of the make-up valve.

6. Put valves (6), springs (5) and washers (4) in valve body (2). Use tool (A) to install rings (3) to hold the valves.

7. Install the O-ring seals in valve body (2) and use clean grease to hold them in position.

8. Put valve body (2) in position in the hydraulic tank and install bolts (1) to hold it.

end by:

a) install hydraulic control valve