315B Excavator Machine Systems Caterpillar

Disassembly Procedure

Start By:

1. Remove the pilot valve. Refer to Disassembly and Assembly, "Pilot Valve (Travel) - Remove" in this manual.

1. Make sure that the outside of the pilot control valve is thoroughly clean prior to disassembly. Check the condition of all of the O-ring seals that are used in the valve. If the O-ring seals are worn or damaged, use new parts for replacement.

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Illustration 1	g00371853

2. Remove rubber cover (3) from pedal assembly (5). Remove two bolts (4) and the washers. Remove pedal assembly (5) from the pilot control valve.

3. Remove two bolts (6) and the washers. Remove lever assembly (2) from the pedal. If necessary, remove knob (1) from the lever.

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Illustration 2	g00371854

4. Remove bellows (22) from pedal (24). Remove shaft (28). Remove pedal (24) from cover (26). Remove screws (16) and (23) from pedal (24) .

5. Remove two socket head bolts (25). Remove cover (26) from valve housing (14). Remove bushing (19) and (27) from cover (26) .

6. Remove plug (29) from the valve housing. Remove O-ring seal (30), scraper (20) and seal (21) from plug (29) .

7. Remove rod (7), washers (8) and (15), seat (9), springs (10) and (11), washers (12) and (17), and spool (13) from valve housing (14) .

8. Follow Step 6 and Step 7 in order to remove the other valve assembly components.