Gearbox/Oil Change - DEMAG DC-Com 1 Operating Instructions Manual

8.5.10

Gearbox/oil change

Fig. 67
Chain hoist size
Oil quantities
Tightening torques
Tab. 66
Dispose of waste oil in accordance with environmental protection requirements.
Oil lubrication
Under normal operating conditions, the lubricant must be changed at least every 10 years. Under exceptional
conditions, e.g. increased ambient temperatures, we recommend that oil changes be adapted to suit these condi‐
tions.
Oil grades
Demag special oil with wear-minimising additives, range of viscosity 10W-30 (part no. 664 020 44) for slipping
clutch without speed monitoring. Malfunctions of the slipping clutch may occur if oils are used that are not ap‐
proved. Contact the manufacturer for ambient temperatures lower than -20 °C or higher than +45 °C.
CAUTION
Safe operation cannot be ensured
Malfunctions of the slipping clutch may occur if oils are used that are not approved and safe operation can then
no longer be ensured.
General remarks on oil changes
Drain the old oil at operating temperature. Turn the gearbox in such a way that the oil is drained. The flushing oil
should have a viscosity of 46-68 mm
mately twice that specified for lubrication. Then flush the gears by switching the hoist on and allowing the hook to
run several times over the entire length of its lifting path. Then drain the flushing oil and refill the gearbox with new
oil. Please refer to the table above for the required oil quantities. See spare parts for the order no.
DC 1 - 10: Remove control unit with plug-and-socket connections (2) under electric equipment cover (3). Now re‐
move the screws of gearbox cover (1).
Gearbox cover
Service cover
/s at rated temperature. The quantity of flushing oil used should be approxi‐
2
DC 1 - 2 DC 5
[l] 0,35 0,50
[Nm] 5,5
[Nm] 5,5
DC 10
0,90
7,5
91