Section 6
Hydraulic System
20479283
8-2009/Rev 01
6-6
13. Set the high and low pressure control valves on the hydraulic manifold to the minimum
setting by turning then counter-clockwise.
14. Set the compensators to the minimum setting by turning the adjusting screws counter-
clockwise.
15. Select high pressure operating mode and set the high pressure control valve on the
hydraulic manifold to the maximum setting by turning the knob clockwise.
16. Turn the adjusting screw on the high limit compensator clockwise until the hydraulic
reference gauge reads 3,000 psi (207 bar).
17. Select low pressure operating mode and turn the adjusting screw on the low limit
compensator clockwise until the reference gauge reads 290 psi (20 bar). Lock the
adjustment screw in place.
18. Select high pressure operating mode and turn the knob on the high pressure control valve
counter-clockwise until the reference gauge reads 2,000 psi (138 bar).
19. Open the high pressure water control valve, allowing water to flow. Set the desired high
operating pressure by adjusting the high pressure control valve.
20. While the machine is running and high pressure water is flowing, select low pressure
operating mode. Set the desired low operating pressure by adjusting the low pressure
control valve.
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