Maintenance
9.2 Inspection and maintenance
1LA5/6/7/9, 1LG4/6, 1MA6/7, 1MB..1/2/3/4/5 - SH 63 ... 355
Operating Instructions, 06/2018, A5E44455710A
115
● Check after approx. 500 operating hours, but after not more than one year:
When the
motor is
running
The electrical parameters are maintained.
The permissible bearing temperatures are not exceeded.
The smooth running characteristics and machine running noise have not
The foundation has no cracks or indentations. (*)
(*) You can perform these checks while the motor is at standstill or, if required, while running.
● Further checks may be required if so specified in operating instructions of components or
in accordance with the plant-specific conditions.
● If you find any deviations during the inspection, you must rectify them immediately. They
may otherwise damage the motor.
Check that the installation conditions are observed. We recommend that the following
checks are performed after approx. 16 000 operating hours or at the latest after two years:
Table 9- 1 Checks that have to be performed during the general inspection
When the
motor is
running
The electrical parameters are maintained
The permissible bearing temperatures are not exceeded
The smooth running characteristics and machine running noise have not
The motor foundation has no cracks and indentations (*)
The machine is aligned within the permissible tolerance ranges
All the fixing bolts/screws for the mechanical and electrical connections
have been securely tightened
All the potential connections, grounding connections and shield supports
are correctly seated and properly bonded
The winding insulation resistances are sufficiently high
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.
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