559D and 579D Knuckleboom Loader Machine Systems Caterpillar

Assembly Procedure

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Illustration 1	g06295255

1. Install O-ring seal (18) onto check valve assembly (15).

2. Install O-ring seal (17) and back up rings (20) onto check valve assembly (15).

3. Install O-ring seal (16) and back up rings (19) onto check valve assembly (15).

4. Repeat Step 1 through Step 3 for the remaining check valve assembly (15).
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   Illustration 2	g06295237

5. Install check valve assemblies (15).
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   Illustration 3	g06295232

6. Install O-ring seal (14), O-ring seal (13), and back up ring (12) onto solenoid valve (11).
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   Illustration 4	g06295223

7. Install solenoid valve (11).
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   Illustration 5	g06295210

8. Install coil (9) and nut (10).
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   Illustration 6	g06295268

9. Install O-ring seal (6) onto relief valve assembly (3).

10. Install O-ring seal (5) and back up rings (8) onto relief valve assembly (3).

11. Install O-ring seal (4) and back up rings (7) onto relief valve assembly (3).

12. Repeat Step 9 through Step 11 for the remaining relief valve assembly (3).
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    Illustration 7	g06295135

13. Install relief valve assemblies (3). Tighten relief valve assemblies (3) to a torque of 95 ± 7 N·m (70 ± 5 lb ft).
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    Illustration 8	g06295133

14. Install plate (1) and four bolts (2).

End By:

1. Install the manifold valve (bypass).