gmb / BA PowerGear_EN as of May 2015 / 29.10.2015
Page 19 of 23
11. Inspection and maintenance
11.1 General notes
All service and maintenance work must only be carried out by qualified personnel.
See "Safety Notes 3.2" in this regard.
For carrying out service and maintenance tasks the gear unit must always be shut down.
The drive unit must be secured against any unintentional start-up (key switch, lock) and an information sign must
be affixed with the information that work is being carried out on the gear unit.
Warning
:
Major risk of injury due to accidental start-up of the drive unit!
Before commencing any maintenance work, secure gear unit against any start-up!
Warning
:
Major risk of injury
due to disassembly of transmission parts (couplings, jointed
shafts, belts, etc.) whilst torsional forces are still acting on the gear shafts
!
Secure gear shafts against torsional forces and disassembly transmission ele-
ments.
11.2 Service intervals
If service intervals are not complied with, major damage may be caused to the gear unit and within the plant.
Therefore it must be ensured that these service intervals are observed.
Measures
Service intervals
Remarks
Check running noise for any
changes
daily
Check gear unit for leakage
daily
Check oil level
monthly
Carry out first oil change
500 operating hours after commissioning
Chapter 11.3
Carry out additional oil changes
mineral oil filling
Every 24 months or 10000 operating hours
Chapter 11.3
Carry out additional oil changes
Synthetic oils
Every 4 years or 20000 operating hours
Chapter 11.3
Check gear unit condition
Every 2 years
Chapter 11.4
11.3 Oil service life
The oil service life at 80°C mean oil temperature in the gear unit without any serious change in the oil qualities
are specified by the oil manufacturers as minimum values:
For mineral oils, biodegradable oils and physiologically harmless oils 2 years or 10,000 operating hours
For synthetic oils (polyalphaolefins and polyglycols) 4 years or 20,000 operating hours
Note on oil service life
The actual relevant oil service life may be longer, but also shorter for operating temperatures in excess of
80°C. Here, the rule applies that a temperature increase by 10°C approximately halves the service life of the
oil.
11.4 Oil change
Oil should be drained directly after shutdown whilst the oil is still warm.
