LOCK-SCREW 1951106 - Caterpillar

Removal Procedure
Illustration 1 g01149576
Loosen the clamp (9) and remove the hose (10) from the connector (12).
Remove the setscrews (8) and remove the connector (12) from the cylinder head. Remove the gasket (13). Remove the O-ring seal (11) from the connector. Discard the gasket (13) and the O-ring seal (11).
Remove the cover (1) from the valve mechanism cover (5).
Personal injury can result from parts and/or covers under spring pressure.Spring force will be released when covers are removed.Be prepared to hold spring loaded covers as the bolts are loosened.
Remove the screws (2). Remove the plate (3).
Remove the diaphragm (4) and the cap (6). Remove the spring (7). Installation Procedure
Illustration 2 g01149576
Improper assembly of parts that are spring loaded can cause bodily injury.To prevent possible injury, follow the established assembly procedure and wear protective equipment.
Install the spring (7), the cap (6), and the diaphragm (4).
Install the plate (3). Install the screws (2).
Install the cover (1) on the valve mechanism cover.
Install a new O-ring seal (11) on the connector (12). Install a new gasket (13) on the connector (12). Position the connector in the valve mechanism cover.
Install the setscrews (8). Tighten the setscrews to a torque of 9 N m (80 lb in).
Install the hose (10) on the connector (12). Tighten the clamp (9) to a torque of 5 N m (44 lb in).