Hydraulics training system WS290 | RE 00225-B/12.15
Bosch Rexroth AG 69/104
Set-up, installation and commissioning
Table 9:
Possible errors and measures
No.
Possible causes
Remedy
1
Hydraulic fluid missing in the oil tank Fill hydraulic fluid into the
oil tank.
2
Leaky system
Check the system for leakage
and seal it
3
Pump defect
Stop the pump
Inform the Bosch Rexroth
service (pump exchange)
4
3-way ball valve not in
operating position
Bring the ball valve in
operating position
Operate the "OFF" switch at the power unit after 10 seconds at the latest.
9.5.4
Testing the hydraulic fluid condition
The pump circulation test at the measuring glass was successful. The closed
pump circuit as set-up in section 9.5.3 is maintained.
Close the shut-off cock at the measuring glass.
Operate the "ON" switch at the power unit.
Approx. 3 seconds after start-up of the pump, hydraulic fluid must flow into the
measuring glass.
Only fill approximately half of the measuring glass.
Immediately operate the "OFF" switch at the power unit.
Particularly with cold oil, the measuring glass may overflow as the pump
delivers more oil than it can flow back into the oil tank via the hose (5).
Carry out a visual inspection of the hydraulic fluid in the measuring glass:
–
The oil should be free from bubbles,
–
The color should be like amber and clear.
NOTICE
Danger of the hydraulic pump running dry!
Damage to property!
Stop the system immediately and check the possible causes.
In case of a defect, inform the Bosch Rexroth service.
Prerequisites:
How the test is carried out: