Servicing
8.3 Maintenance and servicing work
A5850-02en Edition 06/2022 89
8.3.1 Checking the oil temperature8.3 Maintenance and servicing work
Damage to the gear unit due to excessively high oil sump temperatures.
The gear unit can sustain damage due to inadequate lubrication if you allow it to operate at
oil sump temperatures above the maximum permissible temperature.
Do not operate the gear unit above the maximum permissible oil sump temperature.
Procedure
Proceed as follows to check the oil temperature:
1. Allow the gear unit to reach its normal operating temperature.
2. Operate the gear unit with the maximum driven machine power.
3. Measure the temperature of the oil in the oil sump.
4. Compare the measured value with the maximum permissible oil temperature (Page85).
5. Immediately stop the gear unit if the maximum permissible oil temperature is exceeded.
Contact Flender Customer Services.
8.3.2 Measure the vibration levels of the rolling-contact bearings8.3 Maintenance and servicing work
Procedure
Proceed as follows to measure the vibration levels of the rolling-contact bearings:
1. Measure the vibrations at the rolling-contact bearings.
2. Document the measurement results.
3. Compare the measured values with the comparison values that were documented when
commissioning the gear unit.
4. Replace defective rolling-contact bearings.
5. Archive the report together with these instructions.
Further information
You can find additional information on measuring the vibration levels at rolling-contact bear-
ings in the operating instructions of the measurement sensor provided in the complete gear
unit documentation.
8.3.3 Clean the fan and gear unit8.3 Maintenance and servicing work
Introduction
The gear unit can sustain damage due to inadequate cooling if you operate it with a dam-
aged or soiled fan. Depending on the conditions at the site of installation, it may therefore be
necessary to clean the fan and gear unit more frequently than stipulated in the maintenance
schedule.
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