A10VO PISTON PUMP MANUAL-MODULE 3A
CONTROL
VALVE
ASSEMBLY
Identification Drawing
1. Flow regulation
2. Control valve spools
3. Gauge test port From the pump's output port
4. To the pump's control piston
5. To the pump's low pressure case then back to the reservoir
6. Connection to the load sensing shuttle valve system in the main control valves
7. Adjustable command springs
8. Pressure Regulation
9. Control valves and their adjustment screws
Pressure Regulation
Maximum system pressure setting. See module 2A Hydraulic Installation and Commissioning
manual for instructions for testing maximum pressure setting. These detailed instructions will
assist you when changing pressure setting. The pressure is set with the pressure setting screw.
1. Remove the cap nut with 17 mm external hexagon.
2. Undo the lock nut with 17 mm external hexagon.
3. Set the pressure range by turning the setting screw with hexagon socket head 4 mm.
4. Lock the setting screw with lock nut, external hexagon 17 mm. Turning the setting screw
clockwise increases the pressure. Turning the setting screw counter–clockwise reduces
the pressure. One turn of the setting screw corresponds to 50 bar pressure range 20 to
250 bar.
5. Screw on the cap nut with external hexagon 17 mm and tighten to a torque of Ma =
8.5Nm. (186 Inch/Lbs.)
Bosch Rexroth Canada Corp. 3426 Mainway Dr. Burlington, ON L7M 1A8
www.boschrexroth.ca
16/06/2006
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