74/104 Bosch Rexroth AG
Hydraulics training system WS290 | RE 00225-B/2.15
Set-up, installation and commissioning
2.
Pressure too low
The circulation pressure is too low if the displayed pressure lies below 5 bar.
Possible causes:
–
The delivery volume is too low
–
The hydraulic power unit is not tight
Prevent the further operation of the WS290 training system.
Inform the Bosch Rexroth service.
3.
Pressure ok
The pressure is ok if the displayed pressure lies between 6 bar and 10 bar.
The pressure test is completed.
Restore the initial condition.
Repeat the test for the second pump circuit.
Switch off the pump using the "OFF" switch at the power unit.
Screw off the measuring hose.
Store the pressure gauge with measuring hose (e.g. installation container)
Decouple the hose line at the P/T distributor.
Store the hose line (e.g. in the installation container or the hose storage).
The operating pressure is ok, the WS290 training system is ready for
operation.
9.5.8
Standby pressure test at the load-sensing system
How the pressure measurement is carried out:
Connect the pressure gauge to MP1.
Switch on the hydraulic pump at the "ON" switch.
Bring the ball valve in operating position (horizontal position).
Check the pressure at MP1.
The displayed pressure must be 15 bar ± 2 bar.
If the pressure is too high or too low, proceed as follows:
Bring the lever into rest position (vertical position)
Operate the OFF switch
Inform the Bosch Rexroth service.
9.5.8.1
Test of the maximum operating pressure at the
load-sensing system
How the pressure measurement is carried out:
Connect the pressure gauge to MP1.
Connect ports P1 and LS at the LS control block by means of a hose.
Switch on the hydraulic pump at the "ON" switch.
Bring the ball valve in operating position (horizontal position).
Check the pressure at MP1.
The displayed pressure must be 50 bar ± 5 bar.
Restoring the initial condition: