Maintenance and repair, Notice – VACUUBRAND MZ 1C User Manual

Page 20

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page 20 of 102

appropriate precautions, if an automatic restart of the

pump may lead to a dangerous situation (e.g., switch

off the pump and disconnect from the power source).

Maintenance and repair

In order to comply with laws (occupational, health and

safety regulations, safety at work law and regulations for

environmental protection) vacuum pumps, components

and measuring instruments can only be returned when

certain procedures (see section “Notes on return to the

factory”, pg. 95) are followed.

Take advantage of our service seminars, which put special

focus on the maintenance and repair of vacuum pumps.

For details and for the online ”Instructions for repair” man-

ual see www.vacuubrand.com.

In normal use, the lifetime of the diaphragms and valves

is typically 15,000 operating hours.

Bearings have a typical durability of 40000 h. Motor ca-

pacitors have a typical durability in the range of 10000 to

40000 h depending strongly on operation conditions in-

cluding ambient temperature, humidity or load.

Ensure that the pump cannot be operated acciden-

tally. Never operate the pump if covers or other

parts of the pump are disassembled.


Switch off the pump. Disconnect the electrical

power cord and wait five seconds before starting

maintenance to allow the capacitors to discharge.

Note: The pump may be contaminated with process

chemicals, which have been pumped during operation.

Ensure that the pump is completely decontaminated

before maintenance commences.

NOTICE

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