BA 9213 en 03/2012
8.3
Check
•
During operation the gear unit must be monitored for:
─ Oil temperature
(The gear unit is designed for a temperature of 90 °C with mineral oil
in continuous operation. For higher temperatures, synthetic oils
must be used.
Shortterm operating temperature of up to 100 °C is permitted;
see also section 10.)
─ Changes in gear noise
─ Possible oil leakage at the housing and shaft seals
─ Correct oil level (see section 7, "Startup")
To check the oil level, stop operation of the gear unit.
When the oil has cooled down, the oil level should be up to the middle of the oil sight glass or
the middle of the marks on the angular oil level indicator or at the upper mark on the oil level
dipstick. If the oil is hot, the marks may be slightly exceeded. It must in no case be allowed to
fall below the mark. If necessary, top up to the correct level.
If any irregularities are noticed during operation or if the pressure monitor in the
oilcooling system (if installed) triggers the alarm, switch the drive unit off at once.
Determine the cause of the fault, using the table in section 9.
The troubleshooting table contains a list of possible faults, their causes and
suggested remedies.
If the cause cannot be identified and/or the unit repaired with the facilities available,
you are advised to contact one of our customerservice offices for specialist
assistance (see section 11).
8.4
Auxiliary drive (optional)
8.4.1
Avoidance of excessive speeds
To avoid excessive speed on the auxiliary drive the auxiliary drive must not be operated at the same time
as the main drive.
Main drive
= lever position "OFF"
Auxiliary drive
= lever position "ON"
The auxiliary drive must be interlocked accordingly.