Micromass Quattro Ultima, User Manual

Page: 177 / 227

Maintenance and Fault Finding
Introduction
Cleanliness and care are of the utmost importance whenever internal assemblies are
removed from the instrument.
4
Always prepare a clear clean area in which to work.
4
Make sure that any tools or spare parts that may be required are close at hand.
4
Obtain some small containers in which screws, washers, spacers etc. can be
stored.
4
Use tweezers and pliers whenever possible.
4
If nylon or cotton gloves are used take care not to leave fibres in sensitive areas.
6
Avoid touching sensitive parts with fingers.
6
Do not use rubber gloves.
4
Before reassembling and replacing dismantled components, inspect O rings and
other vacuum seals for damage. Replace with new if in doubt.
Should a fault occur soon after a particular part of the system has been repaired or
otherwise disturbed, it is advisable first of all to ensure that this part has been
correctly refitted and/or adjusted and that adjacent components have not been
inadvertently disturbed.
Warning: Many of the procedures described in this chapter involve
the removal of possibly toxic contaminating deposits using
flammable or caustic agents. Personnel performing these operations
should be aware of the inherent risks, and should take the necessary
precautions.
Cooling Fans and Air Filters
Always ensure that none of the cooling fans is obstructed. It is essential that the fan
filter is checked at regular intervals, and replaced if there is any doubt about its
effectiveness.
Maintenance and Fault Finding
Page 177
Quattro Ultima
User's Guide