www.graessner.de
gahe / BA EvoGear status as of July 13, 2021
Page 16 of 22
8. Commissioning
The commissioning
(start of operation in accordance with the intended use)
of the
EvoGear
gearbox is
prohibited until it has been determined that the machine or plant complies with the provisions of the EU
Machinery Directive.
Before commissioning, check the correct attachment of the transmission parts.
If possible, check the oil level.
Do not deactivate monitoring and protection devices, not even during test operation.
With EvoGear gearboxes, the use of an aeration and ventilation filter is not provided for. In special
cases, with very high operating temperatures, an aeration and ventilation filter may help in S1 operation
to decrease the temperature and avoid leakages. Please contact our Product Management in this
regard.
The first start-ups must be carried out without load and at low speeds, until it is ensured that all roller bearings,
bevel gears and shaft seals are wetted with oil - then increase the speed to approx. 500 min
-1
.
After approx. 30 min. slowly increase speeds until operational speed is reached, running-in time at idle approx.
90 min.
During start-up and run-up pay attention to running noise and temperature development, in particular at the
bearing points. In the case of unusual running noise, shut down machine and identify fault.
See Section 10:
“Faults, causes and remedies”.
Apparent leakage at the shaft seal rings
Grease emerging from the lubrication in the shaft seal rings does not represent an oil leak. This is an
apparent
leakage
, until the remaining lubricant has settled.
Wipe off any such apparent leakage and continue to observe.
Attention
gearbox damage
:
If the new gearbox is started up too rapidly, this may cause bearings to overheat,
as well as causing insufficient lubrication on the gear flanks.
It is necessary to allow the gearbox to run-in in stages
Warning
:
Risk of burns
Serious burns possible on hot surfaces (>55°C)
Wear suitable gloves and protective clothing
9. Operation of the EvoGear Gearbox
9.1 General Information on Operation
The notes under item 1
“General safety information”, item 10 “Faults, causes and remedies”, and item 11
“Inspection and maintenance” must be complied with.
In order to achieve a perfect trouble-free operation of the gearbox, the operating factors defined in the
“Technical Data” must be complied with.
