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4.4.25. Replacement of pushers, persistent laying and hydraulic pushers

HYDRAULIC PUSHERS

Details of a hydraulic pusher of valves

1 – ring,
2 – plunger,
3 – ball,
4 – spring,
5 – cover,
6 – spring,
7 – cylinder

If hydraulic pushers of valves are worn-out, they need to be replaced.

To reduce probability of emergence of problems in the future, it is recommended to sort and clean hydraulic pushers every time when you remove a head of cylinders.

PERFORMANCE ORDER
1. Since a pusher of the valve of the first cylinder, remove a ring from the top part of the cylinder of a pusher.
2. Take the piston and a spring from the cylinder.
3. The small screw-driver remove a cap in the piston basis. Get a spring (1) and a ball (2) from under a cap.
4. Carefully wash out pusher elements kerosene. If springs of a pusher are worn-out or damaged, replace a pusher entirely.
5. Assembly of a pusher is made in the sequence, the return dismantling.
6. Establish a ball (1) in an opening (2).
7. Establish a cap.
8. Establish a spring on a cap.
9. Insert the piston and a spring into the cylinder.
10. Put on a ring (1) the top part of the piston and an edge of the cylinder (2).

PUSHERS AND PERSISTENT LININGS OF VALVES

Examine pushers and linings on existence of wear and damages and replace them if necessary.

TECHNOLOGICAL CAPS

Removal of caps


PERFORMANCE ORDER
Examine caps in a head and the block of cylinders. If necessary replace caps.