17
maintenance schedule
Maintenance Service Monthly Semi-annually Seasonal Startup or Annually
Inspect General Condition and Operation x x
Observe Operation of:
Mechanical–motor, fan and drive mechanism x x
Makeup valve (if equipped) x x
Inspect for unusual noise or vibration x x
Inspect and Clean:
Air inlet x x
PVC drift eliminators x x
Distribution basin, nozzles and collection basin x x
Fan motor exterior x x
Check:
Collection water basin level x x
Blowdown–adjust as required x x
Geareducer Drive
Check for loose fasteners including oil drain plug x
Check for / repair oil leaks x x
Check oil level x x
Change oil R
Make sure vent is open x
Check driveshaft alignment x
Check for loose driveshaft or coupling fasteners x
Check driveshaft flex element for unusual wear x x
Lube lines:
Check for oil leaks in hoses or fittings x x
Fan:
Check and tighten blade and hub fasteners x
Check fan blade pitch and tip clearance x
Check fan cylinder for loose fasteners x
Motor:
Lubricate (as required)
R
Check mounting bolts for tightness x
Operate at least 3 hours a month 3 hours a month 3 hours a month
Basin Heater (if equipped):
Check for proper operation of temp/low water level sensor x
Inspect/clean buildup of contaminant from sensor x x
Structure:
Inspect/tighten all fasteners x x
Inspect and touch up all metal surfaces x
R — Refer to Component User Manual
Note: It is recommended at least weekly, that the general operation and condition be observed. Pay attention to
any changes in sound or vibration that may signify a need for closer inspection.
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