Witschi ProofMaster, Operating Manual

Page: 91 / 96

Troubleshooting
17.10.2019 91 / 96
8.3 Opening the bell cover in an emergency
The bell cover can be opened manually in the following cases:
• The test was cancelled. The watch has to be removed from the test
chamber.
• The test chamber does not open automatically, for example after a
power failure.
Mandatory
Wear safety goggles during the entire bell cover opening
process!
a) Switch off the compressor as specified in the manufacturer's
documentation.
b) Release the air from the compressed air hose of the compressor.
c) Switch off the ProofMaster.
ð
The remaining pressure in the test chamber escapes.
ð
See Switching off the device [
}
Page 36] .
1
2
d) If the residual pressure does not escape from the test chamber,
carefully insert a thin, rounded object between the bell cover 1 and
the bottom 2 .
Prohibition
Do not use a pointed object to open the bell cover!
Pointed objects can lead to material damage (seal) or scratches.
• Use objects with rounded corners, e g. playing cards.
ð
The pressure is released.
e) Wait until the pressure has completely dissipated.
3
4
5
1
f) Remove the cap 3 .
g) Insert a size 4 or 5 5 screwdriver into hole 4 and turn clockwise to
release the bell cover 1 .
h) Open the bell cover 1 .