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RE 24851-B/06.09 | W.H; WM.H
1.
Switch off power supply to the electrical connection line
(only with valve type ...QM...).
2.
Remove external coarse dirt.
3.
Check all external fittings for completeness.
4.
Check the valve for external leakage, replace seals if applicable, see section
"Remedying leakage".
Information regarding the determination of the internal leakage is available
from Bosch Rexroth.
Additional works with valves with spool position monitoring
The following description applies to the following valve types:
...QM....
1.
Check the connection line for damage. If damage is visible, replace the con-
nection line.
2.
Loosen the mating connector and remove the mating connector.
3.
Check the seal of the mating connector for damage. If damage is visible, the
mating connector must be completely replaced. You will find ordering details
for the mating connector in section "9.5 Spare parts" on page 32, see also
section "6.7 Connecting the spool position monitoring" on page 23.
4.
Plug and subsequently screw the mating connector (on) to the connector of
the spool position monitoring.
9.4
Repair
Bosch Rexroth offers a wide range of repair services for the valve.
Only use genuine spare parts from Bosch Rexroth for repairing the
Rexroth product.
Tested and pre-assembled original Rexroth assemblies allow for successful
repair requiring only little time.
Safety instructions regarding repairs
For repair works, the valve may only be disassembled to the extent described in
the operating instructions.
Defective parts may only be replaced by new, interchangeable, tested compo-
nents in original equipment quality.
Clean the external environment of fittings and devices before the disassembly.
Do not use cotton waste for the cleaning.
Close all openings using protective caps.
Remedying leakage
External leakage at the valve connection surface can be remedied on site, see
section "Remedying leakage at the valve connection surface" on page 32.
In case of internal leakage, the valve must be replaced completely.
Bosch Rexroth AG
31/40
Maintenance
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