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Checking
Any bearing insulation is fitted as shown on the plates and labels
The CABLES and insulating parts and components are in good condition and
there is no evidence of discoloring
(*) You can perform these checks while the motor is at standstill or, if required, while running.
NOTICE
Machine damage
When carrying out the inspection, if you detect any impermissible deviations from the normal
state, you must rectify them immediately. They may otherwise cause damage to the machine.
9.2.5
Assessing the rolling bearings
To assess the rolling bearings, it is generally not necessary to dismantle the machines. The
motor only has to be dismantled if the bearings are to be replaced.
The state of a rolling bearing can be assessed by analyzing the bearing vibration. The
measured values provide an indication and can be assessed by specialists. In this case, please
contact the Service Center.
9.2.6
Maintenance intervals
Please note the following in order to identify faults at an early stage, rectify them and avoid
follow-on damage:
● Maintain the machine regularly and carefully.
● Inspect the machine.
● Motors must be allocated a revision/inspection number after inspection.
1PC134, 1PC136 crane motors SH 132 ... 315
Operating Instructions, 02/2019, A5E43212221A
NOTICE
Motor failure
Material damage can occur if the machine develops faults or is overloaded.
● Immediately inspect the machine if faults occur.
● An immediate inspection is especially necessary, if the three-phase motor is
excessively stressed, either electrically or mechanically (e.g. overload or short-circuit).
Maintenance
9.2 Inspection and maintenance
When the
At stand‐
motor is
still
running
X
X
85
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