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Service and maintenance
10.6 Cleaning the gearbox or geared motor
Oil or grease escaping in small quantities from the shaft sealing ring should be regarded as
normal during the running-in phase of 24 hours operating time.
Avoid consequential damage: If the leakage quantities are significant or leaking continues
after the running-in phase, then replace the shaft sealing ring.
Table 10-6
Status
Film of moisture
on the shaft seal‐
ing ring
Leakage at the
shaft sealing ring
10.5
Replacing the vent valve
To ensure correct functioning, renew the breather valve yearly.
When replacing, prevent dirt and damaging atmospheres from entering the gearbox.
If too much oil is contained in the gearbox, oil will escape from the breather valve. Correct
the oil quantity and replace the breather valve.
10.6
Cleaning the gearbox or geared motor
Explosion hazard due to overheating of the machine caused by a layer of dust
Deposits of dust have a thermally insulating effect, causing the machine to overheat. The
maximum surface temperature of the machine is not adhered to. The dust is ignited as a result,
causing an explosion. Death, serious injury and material damage will result.
• Regularly remove dust from the machine.
• Do not allow dust layers thicker than 5 mm to build up.
• Only switch the machine on when the dust has been removed.
66
Description and measures
Description
Film of moisture as a re‐
sult of the inherent prin‐
ciple of operation (appa‐
rent leakage)
Identifiable small trickle,
formation of drops, also
after the running-in
phase
WARNING
Measures
Remove using a clean
cloth and continue to
observe.
Replace the sealing ring,
determine the possible
cause of the sealing ring
failure and rectify.
SIMOGEAR electric monorail gearbox
Operating Instructions, 01/2024, A5E53220855A/RS-AA
Notes
This does not represent a
fault; frequently, in the
course of operation, the seal‐
ing ring dries off.
During the run-in period, the
shaft sealing ring beds into
the shaft. A visible track can
be seen on the shaft. Opti‐
mum preconditions for a per‐
fect seal are obtained after
the run-in period.
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