RE 64025-B/2021-08-12, Bosch Rexroth AG
Commissioning |
Control blocks for mobile applications
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– If automatic air bleeding of the cover does not result in adequate venting,
you can carry out air bleeding using the air bleed screws that may be present
(series-dependent).
Procedure:
ATTENTION!
When undoing the air bleed screw, hydraulic fluid can escape!
▶
Undo the air bleed screw on the cover by about two thread rotations such
that the air can escape via the thread and the seal of the air bleed screw.
▶
Switch the valve several times to air bleed the cover completely.
▶
Fasten the air bleed screw taking into account the applicable tightening
torque.
– Also observe the parameters for air bleeding in the instruction manual of the
machine.
6�
Perform a leak test.
Check that no hydraulic fluid leaks from the control block or the ports during
operation. In case of hydraulic fluid leakage, refer to Table 8 "Malfunction
table" on page 47.
7�
Perform a functional test.
The functional test must be performed according to the parameters provided
the machine manufacturer see machine instruction manual. Applicable for
each case: Always increase the pressure slowly, if a leakage occurs stop the
functional test immediately!
8�
Check the control block hydraulic fluid temperature after it has been running
in continuous operation for several hours. Check whether the measured
temperature is within the product-specific limits. If the temperature is outside
of the specified limits, the Bosch Rexroth warranty is invalidated.
9�
After the initial commissioning, have a hydraulic fluid sample analyzed for
the required cleanliness level. Change the hydraulic fluid if the required
cleanliness level is not reached. If no laboratory test is performed after initial
commissioning, then: Change the hydraulic fluid.
8�3 Recommissioning after standstill
Recommissioning is necessary if the control block has been out of service for
longer than 12 months.
▶ For recommissioning, proceed as described in chapter 8.2 "Initial
commissioning" on page 36.
Observe the instructions on (re)commissioning after standstill in the machine's
instruction manual.
