Motor Fan - Bosch Rexroth MAD Project Planning Manual

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Operation of MAD/MAF motors
12.5.3

Motor fan

General
Bosch Rexroth AG R911295781_Edition 11
Measure
Check the machine for smooth
running, vibrations and bearing
noise.
Remove dust, chips and other
dirt from the motor housing,
cooling fins and the connections.
Tab. 12-1: Maintenance measures
There may be cases when the fan unit has to be dismounted for maintenance
measures or troubleshooting.
● This work may only be carried out by skilled personnel.
● When disassembling the fan unit, keep all strips, screws and nuts with
which it is attached.
In parts, the housings of the fan units consist of several screwed elements.
Only unscrew the screws that are marked as such.
CAUTION
● Ensure adequate contact protection and wait until the motor has cooled
down.
● Ensure that there are no combustible and flammable materials in the en‐
vironment of the hot fan.
CAUTION
● Do not stay within the danger zone of the device.
● When working on the device, switch off the line voltage and ensure that
it cannot be reactivated.
● Wait until the device has come to a standstill.
WARNING
● Protect the device against contact. Before starting work on the plant/
machine, wait until all parts have come to a standstill.
● Do not wear jewels or loose or dangling garments when working on
moving parts.
● Wear a cap to protect long hair.
MAD / MAF Asynchronous Housing Motors
Interval
According to the specifications in the machine
maintenance plan, but at least every 1000 ope‐
rating hours.
Depending on the degree of soiling, but after one
operating year at the latest.
Immediately after the motor has been operat‐
ed, high temperatures have to be expected
on the fan housing! Risk of burns!
While voltage is applied, the motor restarts
automatically, e.g., after a power failure! Risk
of injuries!
Rotating device!
If coming into contact with rotor or impeller,
body parts may be crushed! Risk of injuries!