MAN205-0195042EN Rev. A
Aug. 2011
Page 100 of 137 pages
9.8
Releasing the Vacuum Pump Rotor
The vacuum pump could get locked after a prolonged idle period.
Further described, is the procedure to follow in order to unlock and restore the normal
operation of the pump.
1.
When the pump is operated for the first time, check if it works normally.
If not, stop the electric current immediately.
2.
Do not open the pump and by no means, try to free the rotor shaft, by
forcibly rotating the impeller, this can provoke an irreversible damage to
the pump.
3.
Further described is the way to proceed, for restoring the normal
operation of the pump.
a.
By means of a screwdriver, rotate in clockwise direction the shaft of
the pump on which the cooling fan of the motor is mounted.
The shaft will be unlocked and the pump is ready for operation.
b.
If it did not help, unscrew the pipes connected to the pump and pour
in a quantity of 200ml. of edible vinegar available at any grocery
shop.
Leave the pump in this situation for ½ - 1 hour.
c.
By means of a screwdriver, rotate the shaft of the pump on which the
cooling fan of the motor is mounted in a clockwise direction. The
shaft will be unlocked and the pump is ready for operation.
Содержание 6671130
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