5 Maintenance
5-8
(2) Maintenance procedure
1 Turn off the SOURCE switch on the
switch panel for safety.
2 Open the BYPASS needle valve on the
back of the stand cover and feed
5L/min to 10L/min of argon gas.
Electric Shock
Never carry out maintenance operations on the spark stand unless
the SOURCE switch on the switch panel is turned OFF.
3 Press out the end of the vinyl hose
connected to the argon gas exhaust-
outlet on the spark stand using a size
11 or 12 hexagonal wrench and remove
it.
4 Detach the sample plate from the stand
base.
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