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4.1 GENERAL
If this equipment does not operate properly, stop work
immediately and investigate the cause of the malfunc-
tion. Maintenance work must be performed by an expe-
rienced person, and electrical work by a trained electri-
cian. Do not permit untrained persons to inspect, clean,
or repair this equipment. Use only recommended re-
placement parts.
ELECTRIC SHOCK CAN KILL! Be sure that the line
(wall) disconnect switch or circuit breaker is open
before attempting any work inside the power source.
Always wear safety goggles with side shields when
blowing out the power source with air.
4.2 INSPECTION AND CLEANING
Since there are no moving parts (other than the fan) in
the power source, maintenance consist mainly of keep-
ing the interior of the cabinet clean. Periodically, remove
the cover from the cabinet, and wearing proper eye
protection, blow accumulated dust and dirt from the air
passages and the interior components, using clean low
pressure air. It is imperative that the air passages, to the
interior of the unit, be free of dirt to ensure adequate
circulation of cooling air, especially over the rectifier
bridge plates. The length of time between cleaning will
depend on the location of the unit, and the amount of
dust in the atmosphere.
SECTION 4 MAINTENANCE
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