VACUUBRAND MZ 4C User Manual
Page 7
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check
carefully the validity of this document with respect to his product. Manual-no.: 997999 / 24/04/2008
page 7 of 28
☞ Attention: The pump might be contaminated with process chemicals which have
been pumped during operation. Ensure that the pump is decontaminated before
maintenance and take adequate precautions to protect people from the effects of
dangerous substances if contamination has occurred.
☞ Before starting maintenance vent the pump, isolate the pump and other compo-
nents from the vacuum system. Allow sufficient cooling of the pump. Drain conden-
sate, if applicable.
In order to comply with law (occupational, health and safety regulations, safety at work
law and regulations for environmental protection) vacuum pumps, components and
measuring instruments returned to the manufacturer can be repaired only when certain
procedures (see section ”Notes on return to the factory”) are followed.
☞ Ensure that the pump cannot be operated accidentally. Never operate the pump
if covers or other parts of the pump are disassembled. Never operate a defec-
tive or damaged pump.