7.3 Replace the Belt
CAUTION:
Obey the safety regulations. Make sure that the main power source is disconnected
and all parts with electric supply are covered or closed.
Make sure that there is no pressure difference between inlet and outlet of the pump
during the belt change as the pressure difference will force the pump to rotate. If this
can not be ruled out disconnect the pump from the vacuum system before changing
the belt.
CAUTION:
Loosening the hexagon nuts of rotors will cause severe bearing damages.
1.
Disconnect the inlet pipework.
2.
Remove the 4x bolts (1) with 10 mm socket wrench.
3.
Lift the pump cover (2) by hand and remove from the pump.
4.
Remove the 3x bolts with 5 mm Allen key and remove the drive cover (3).
5.
Remove 1 bolt and 1 washer with 8mm Allen key.
21
300766038_002 - © Leybold
Maintenance
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