Preventive Maintenance Work Plan Chart Page 23
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35Preventive Maintenance Work Plan
Frequency Key
W – Weekly
M - Monthly Q - Quarterly
SA- Semi-Annually A- Annually SST - Seasonal Start-Up SSH - Season Shut Down
Reciprocating Air Cooled Chillers
Critical Tasks
Frequency Status
Date Completed Initials
Check unit for proper operation, excessive noise or vibration.
M
Run system diagnostics test.
M
Check oil level in sight glass of lead compressor only, add oil as necessary.
M
Check superheat and subcooling temperatures.
A
Check liquid in line sight glass, oil and refrigerant pressures.
M
Check contactors, sensors and mechanical safety limits.
A
Check electrical wiring and connections; tighten loose connections.
A
Clean intake side of condenser coils, fans, and intake screens.
A
Inspect fan(s) or blower(s) for bent blades or imbalance.
A
Lubricate shaft bearings and motor bearings as required.
A
Inspect plumbing and valves for leaks, adjust as necessary.
M
Check evaporator and condenser for corrosion.
M
Clean chiller and surrounding area.
M
Fill out maintenance checklist and report deficiencies.
M
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