BOLT-HEX HEAD 4757276 - Caterpillar

2. Remove two bolts (1) and the tags that hold the cap for the valve in position. 3. Remove cap (4) from the valve body. Remove shuttle (2) from the valve body.4. Remove guide (3) from the cap. Check the condition of the O-ring seal in the cap. If the seal has damage, use a new part for replacement.Assemble Double Check Valve
1. Make sure all the parts of the valve are clean and free of dirt before it is assembled. 2. Install shuttle (1) and guide (2) in the valve body as shown. 3. Install O-ring seal (3) in cap (4). Install the cap, two tags and the bolts that hold the cap.4. Install the double check valve on the brake control valve.end by:a) install brake control valve