Thermal Arc 185 AC, Service Manual

Page: 37 / 122

7-1
ARCMASTER 185 ACDC 200 ACDC
May 22, 2006
SECTION 7:
ROUTINE MAINTENANCE
The only routine maintenance required for the power
supply is a thorough cleaning and inspection, with the
frequency depending on the usage and the operating
environment.
!
WARNING
Disconnect primary power at the source before
opening the enclosure. Wait at least two
minutes before opening the enclosure to allow
the primary capacitors to discharge.
To clean the unit, open the enclosure (refer to Section
10.02, Opening the Enclosure) and use a vacuum cleaner
to remove any accumulated dirt and dust. The unit should
also be wiped clean, if necessary; with solvents that are
recommended for cleaning electrical apparatus.
CAUTION
Do not blow air into the power supply during
cleaning. Blowing air into the unit can cause
metal particles to interfere with sensitive
electrical components and cause damage to
the unit.