16
maintenance
Inspect louvers, drift eliminators and basin trash screens and remove any
debris or scale which may have accumulated. Replace any damaged or worn
out components. Use of high-pressure water may damage the eliminator and
louver material.
Observe operation of the float valve. Depress the operating lever to make
sure that the valve is operating freely. Inspect the suction screen for plugging.
Remove any debris that may have accumulated.
Check for any buildup of silt on the floor of the cold water basin. Mentally
note the amount, if any, so future inspections will enable you to determine
the rate at which it is forming.
Semi-Annually Relubricate motor according to the manufacturer’s instruc-
tions. See instructions on page 19.
Check to see that all bolts are tight in the fan and mechanical equipment region,
including the fan guard. Use torque settings prescribed on the fan nameplate.
To maintain five-year change intervals, use only oil designed specifi-
cally for these Geareducers. If, after five years, turbine-type mineral oil
is used, the oil must be changed semiannually. Refer to Geareducer
User Manual for oil recommendations and further instructions.
Annually: Inspect the tower thoroughly, making maximum use of instructions
given in the separate user manuals. Lubricate motor according to the manu-
facturer’s instructions. Refer to the
Motor Lubrication Instructions
on page
19. Fan motors with sealed bearings do not require lubrication maintenance.
If the motor has sealed bearings, additional lubrication is not re-
quired. Refer to the motor nameplate to determine if grease type
and amount are specified.
Check structural bolted connections and tighten as required. Make preventive
maintenance repairs as necessary.
Every 5 Years Change Geareducer oil. Refer to
Geareducer User Manual
for instructions.
Note
Note
