Swashblock Group; Unloader & Compensator Controls - Komatsu 930E-2 Shop Manual

Dump truck w/ cummins qsk60 engine
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Swashblock Group

11. Inspect swashblock (25, Figure 6-14) for
scratches, grooves, cracks or uneven surface.
Replace if defective.
NOTE: The wear face is coated with a gray colored
epoxy based dry film lubricant for break-in purposes.
Scratching or wear of this coating is not detrimental as
long as the metal surface underneath the coating is not
scored or "picked-up".
1. Valve Plate
2. O-Ring
3. O-Ring
4. O-Ring
5. Plug
6. O-Ring
L06021
FIGURE 6-16. UNLOADER & COMPENSATOR CONTROLS
7. Plug
8. O-Ring
9. Orifice (0.062 in.)
10. Compensator Control Block
11. 4-Way Valve
12. Screw
Steering Circuit Component Repair
12. Compare saddle bearing (24) thickness in wear
area to thickness in a non-wear area. Replace
saddle bearings if difference is greater than 0.004
in (0.102 mm).
13. Check mating surface of swashblock for cracks or
excessive wear. Replace if necessary.
14. Swashblock movement in saddle and saddle bear-
ing must be smooth.
13. Plug
14. O-Ring
15. Orifice (0.032 in.)
16. Compensator
17. Screw
18. Unloader Module
19. O-Ring
L6-19

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