307.5, 308, 308.5, 309, and 310 Mini Hydraulic Excavator Machine Systems Caterpillar

Disassembly Procedure

Start By:

1. Remove stick cylinder

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Illustration 1	g06361674

1. Remove seals (1).
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   Illustration 2	g06361676

2. Use a suitable lifting device to mount the stick cylinder (2) into Tooling (A). The cylinder weighs approximately 31 kg (70 lb)
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   Illustration 3	g06361677

3. Remove tube assembly (3).
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   Illustration 4	g06361684

4. Use Tooling (B) and (C) to loosen cylinder nut (4).
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   Illustration 5	g06361691

5. Remove cylinder nut (4) from barrel.
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   Illustration 6	g06361697

6. Remove rod (5).
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   Illustration 7	g06361725

7. Attach a suitable lifting device (6) to cylinder (2) and remove . The cylinder weighs approximately 31 kg (70 lb)
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   Illustration 8	g06361727

8. Remove set screw (7).
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   Illustration 9	g06361930

9. Use Tooling (A) to loosen nut (8).
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   Illustration 10	g06361736

10. Remove piston (9).
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    Illustration 11	g06361739

11. Remove spacer (10).
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    Illustration 12	g06361942

12. Remove Retaining ring (11) and spacer (12).
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    Illustration 13	g06361960

13. Remove retaining ring (13).
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    Illustration 14	g06361964

14. Remove guide ring (14), (15), (16), and (17).
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    Illustration 15	g06361967

15. Remove seal (18), (19), and (20).
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    Illustration 16	g06361972

16. Remove retaining ring (21) and bearing (22).
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    Illustration 17	g06361977

17. Remove backup rings (23) and o-rings (24).