Pfeiffer Vacuum A 1204H, Operating Instructions Manual

Page: 62 / 92

62
Maintenance
– Disconnecting the pump from the installation (see 9.5.1)
– Draining the water circuit (see 9.5.2)
– Conditioning the pump for shipping (see 9.5.3)
– Declaration of contamination (see 12)
– Handling the new pump (see 3)
– Installing the new pump (see 5)
– Operating parameter setting ( see Serial link operating instructions)
When returning a product to our service center, please consult the Service procedure
(see 12) and fill in the contamination declaration available on our website.
9.5.1 Disconnecting the pump from the installation
Switch off the pump by positioning the main switch to O : the white indicator Power
turns off.
Switch off your main circuit breaker.
Disconnect the main plug (see 5.8.2) .
Disconnect all electrical connectors. Do not forget to connect the cover plug on con-
nector (delivered with the pump).
Disconnect the nitrogen purge connection.
Disconnect the WATER IN connection then the WATER OUT connection (see 4.2) .
Disconnect the pump from the inlet piping and fit a blanking plate on the inlet (see 13) .
Disconnect the pump from the exhaust and fit a blanking plate on the exhaust port
(see 13) .
Adjust the levelling feet so that the pump rests on the castors.
Remove the pump from the installation.
DANGER
Risk to the health in the event of contact with toxic substances
During pump disconnection, operator could be in contact with process residues on the
exhaust that could cause severe injury or death.
Take the appropriate safety measures to prevent injury. Consult the department man-
ager for instructions and safety information.