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

Belt drive:

Fan shaft bearing lubrication (every 3 mo.)		every 3 months	every 3 months

Check and tighten support fasteners			x

Check shaft, sheave and belt alignment			x

Check belt tension and condition		x	x

Check sheave bushing fastener torque			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 (grease 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.