A10VO PISTON PUMP MANUAL-MODULE 3A
CONTROL VALVE
ASSEMBLY CONTINUED
Flow Regulation
(Standby Pressure)
As mentioned in Module 2A Hydraulic Installation and Commissioning. Manual this setting should
not require adjustment. Although if the factory setting is incorrect (usually 200 PSI) or you wish to
increase please review detailed instructions as below.
The flow is set at the flow setting screw.
1. Remove the cap nut with 13 mm external hexagon.
2. Undo the lock nut with 13 mm external hexagon.
3. Set the flow range by turning the setting screw with 3 mm hexagon socket.
4. Lock the setting screw with the lock nut, 13 mm external hexagon. Turning the setting
screw clockwise increases the flow. Turning the setting screw counter–clockwise
decreases the flow.
5. Screw on the cap nut with 13 mm external hexagon and tighten to a torque of Ma =
8.5Nm. (186 Inch/Lbs.)
PUMP PERFORMANCE TEST
A simple test can be performed to investigate condition of the variable displacement pump. Only
initiate this test if system operation becomes sluggish or complaints of excessive noise with
respect to pump operation.
Ensure vehicle or prime mover is turned off. Remove the case drain from the reservoir or simply
disconnect line at pump housing. Select the easiest option then ensure adequate hose is
available to insert into measuring bucket. Because of the many pump sizes available we suggest
you contact your nearest Bosch Rexroth office for standard leakage rates for your specific pump.
Upon receiving this information deadhead a valve function as outlined under Module 2A
commissioning instructions. Allow unit to run for the desired time limit as specified by Bosch
Rexroth. Measure the quantity of oil to confirm pump operation is okay. At this time a quick
inspection of hydraulic oil is also recommended which may identify early signs of pump wear. If
within desired rates reinstall case drain. If not please contact Bosch Rexroth for further
assistance.
Bosch Rexroth Canada Corp. 3426 Mainway Dr. Burlington, ON L7M 1A8
www.boschrexroth.ca
16/06/2006
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