768C & 769C TRACTOR & 769C TRUCK VEHICLE SYSTEMS Caterpillar

START BY:

a. remove check valve (service, governor or parking brake air reservoir)

1. Separate bodies (1) and (5).

2. Remove seat (2), valve (3) and spring (4) from the body.

3. Make sure all parts are clean and in good condition.

4. Install spring (4), valve (3) and seat (2) in body (1).

5. Install body (5) on body (1).

END BY:

a. install check valve (service, governor or parking brake air reservoir)