① Mounting screws (4 pcs.)
Fig. 7-4: Fan attachment
Required visual inspections of the fan
Inspection Interval
Line insulation
As specified in the machine main‐
tenance schedule, however, at
least every 6 months
Attachment of connecting lines
Lining of contact protection
Fan for damage
Attachment of fan
Tab. 7-4: Visual fan inspection
Notes on troubleshooting
Failure/fault Possible cause Possible action
Fan motor not running
Mechanical blockage
Switch off and de-energize the energy storage device and re‐
move the mechanical blockage
Wrong line voltage Check the line voltage and reestablish voltage supply.
Faulty connection Correct the connection.
Motor winding interrupted Exchange the device
Impeller running untrue Imbalance of rotating parts
Clean the device. If there is still an imbalance after cleaning,
exchange the device.
Overtemperature of fan
motor
Ambient temperature too high. If possible, reduce the surrounding air temperature.
Unallowed operating point Check the operating point
Inadequate cooling Improve the cooling system
Please contact your Rexroth sales partner in case of other failures.
Tab. 7-5: Notes on troubleshooting
7.7.5 Coolant supply
It may become necessary to disassemble the coolant supply for maintenance
measures or troubleshooting.
● This work may only be carried out by skilled personnel.
● Do not carry out any maintenance measures while the machine is run‐
ning. Observe the safety instructions.
● Protect open supply lines and connections against ingress of dirt.
BA1N Kinetic Energy Buffer 35/49
Commissioning and operation of BA1N energy storage device
R911393267_Edition 01 Bosch Rexroth AG
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