Commissioning 35/48
RE 29115-XE-B/09.19, 4WRZ..7X/...XE...,
Bosch Rexroth AG
Proceed as described in the following sections to commission the valve:
The following applies to all valves irrespective of the type of connection:
▶
The connection line must be checked for proper condition by or under
the guidance and supervision of a specialized electrician before the initial
commissioning or any re-commissioning.
▶
Replace damaged connection lines.
▶
Check the inside of the terminal box for corrosion. In case of visible corrosion,
do not install the valve.
▶
Electrical connections in the terminal box must be checked for proper condition
by or under the guidance and supervision of a specialized electrician before the
initial commissioning or any re-commissioning.
▶
Seals are subject to a natural process of aging and, for this reason, check seals
for damages every time the terminal box is opened and replace them if required.
Observe the operating instructions of the device and/or system into which the
valve is installed.
▶
Before the actual operation, switch the valve several times with reduced pressure
(50% operating pressure). This will press out any remaining air from the valve.
Thus, mechanical damage caused by inadmissibly high acceleration of the fluid
and the valve control spool is avoided and the life cycle of the valve is extended.
Do not switch the valve under operating pressure during bleeding as this may
cause damage.
▶
Ensure that no hydraulic fluid leaks at the valve and the connections during
operation.
▶
Check whether there is an internal leakage. The check must be carried out
according to the possibilities present at the hydraulic system.
An internal leakage can be valve-specific but does not necessarily affect the
functionality of the valve.
Checking the
connection line
Checking electrical
connections
Bleeding the hydraulic
system
Performing a leak test
Performing a leak test
