9-7 Preventive Maintenance Service
A systematic preventive maintenance program helps avoid costly down time. Call the Service Department at Sterling to arrange a schedule of inspections. This service, described in Sterling Bulletin No.
Inspections include:
;Check refrigerant suction and discharge pressures.
;Check safety and operating controls.
;Check voltage and amperage of all motors.
;Check all electrical connections.
;Check quantity of refrigerant.
;Check compressor oil level.
;Check lubrication of motor and pump bearings.
;Check circulating pump operation.
;Check flow through heat exchangers.
;Check compressor efficiency.
;Check noise levels.
;Check cleanliness of equipment area.
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