153 & 163 HYDRAULIC CONTROL – External Control Valve

Disassemble External Control Valve

1. Remove flange (1).

2. Install a 1/4′-20NC bolt in end of plug (2). Pull on bolt and remove plug (2), spring (3) and check valve (4).

3. Remove retainer (5).

4. Remove seal (6).

5. Remove cover (7).

6. Hold the valve spool (8) as shown to keep it from turning and loosen the bolt in the end of the valve spool.

7. Remove bolt, lock and spacer (12), spacers (10), spring (11) and retainer (9).

8. Remove seal from retainer (9).

9. Remove spool (8).

Assemble External Control Valve

NOTE: Put clean oil on all parts. Keep work area clean. Use only lint-free paper or cloth.

1. Use tool setup (A) to install oil seal in retainer with spring-loaded lip of sea lup.

2. Use tool setup (A) to install oil seal in retainer with spring-loaded lip of seal up.

3. Put spool (1) in valvebody.

4. Install retainer (2), spacers (3), spring (5) and spacer, bolt and lock (4).

5. Hold spool (1) as shown and tighten bolt.

6. Install cover (6).

7. Install retainer (7).

8. Inspect seal (9). If seal is damaged install a new seal.

9. Install check valve (11), spring (10) and plug (8) with seal (9) on plug (8).

10. Install flange (12).

Posted in D6Tagged