MAINTENANCE | ||
|
|
|
SAFETY PRECAuTIONS
WARNING
ELECTRIC ShOCK can kill.
•Only Qualified personnel should perform this maintenance.
•Turn the input power OFF at the disconnect switch or fuse box before working on this equipment.
•Do not touch electrically hot parts.
See additional warning information throughout this Operator’s Manual
VISuAL INSPECTION
Clean interior of machine with a low pressure air stream. Make a thorough inspection of all compo- nents. Look for signs of overheating, broken leads or other obvious problems. Many problems can be uncovered with a good visual inspection.
ROuTINE MAINTENANCE
1.Every 6 months or so the machine should be cleaned with a low pressure airstream. Keeping the machine clean will result in cooler operation and higher reliability. Be sure to clean these areas:
•All printed circuit boards
•Power switch
•Main transformer
•Heatsink Fins
•Input rectifier
•Auxiliary Transformer
•Reconnect Switch Area
•Fan (Blow air through the rear louvers)
2.Examine the sheet metal case for dents or breakage. Repair the case as required. Keep the case in good con- dition to insure that high voltage parts are protected and correct spacings are maintained. All external sheet metal screws must be in place to insure case strength and electrical ground continuity.
PERIODIC MAINTENANCE
Thermal Protection
Thermostats protect the machine from excessive operating temperatures. Excessive temperatures may be caused by a lack of cooling air or operating the machine beyond the duty cycle and output rating. If excessive operating temperature should occur, the thermostat will disable the machine output. The meter will remain energized during this time. Thermostats are
