SPX Cooling Technologies MARLEY MH MHF702 用户手册

Maintenance Schedule

Maintenance Service

Monthly

Semi-annually

Seasonal Startup or annually

Inspect General Condition and Operation

Observe Operation of:

Mechanical–motor, fan and drive mechanism

Makeup valve (if equipped)

Inspect for unusual noise or vibration

inspect and Clean:

Air inlet

PVC drift eliminators

Distribution basin, nozzles and collection basin

Fan and pump motor exterior

Coil surface

Check:

Collection water basin level

Blowdown–adjust as required

geareducer Drive (if equipped):

Check for loose fasteners including oil drain plug

Check oil level, check for / repair oil leaks

Change oil

Make sure vent is open

Check driveshaft or coupling alignment

Check for loose driveshaft or coupling fasteners

Check driveshaft or coupling bushings or flex element for unusual wear

Lube lines (if equipped):

Check for oil leaks in hoses or fittings

Belt drive (if equipped):

Fan shaft bearing lubrication (every 3 mo.)

every 3 months

Check and tighten support fasteners

Check shaft, sheave and belt alignment

Check belt tension and condition

Check sheave bushing fastener torque

Fan:

Check and tighten blade and hub fasteners

Check fan blade pitch and tip clearance

Check fan cylinder for loose fasteners

Motor:

Lubricate (grease as required)

Check mounting bolts for tightness

Operate at least

3 hours a month

Basin Heater (if equipped):

Check for proper operation of temp/low water level sensor

Inspect/clean buildup of contaminant from sensor

Structure:

Inspect/tighten all fasteners

Inspect and touch up all metal surfaces

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.