SPX Cooling Technologies Cooling Tower Marley MD - Manual (Page 32)

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Weekly: Inspect for bacterial growth and general operation conditions.
Bacterial growth should be reported to your water treatment expert for
immediate attention.
Monthly (Weekly at start up): Observe, touch, and listen to the tower.
Become accustomed to its normal appearance, sound, and level of vibration.
Abnormal aspects relating to the rotating equipment should be considered
reason to shut down the tower until the problem can be located and cor-
rected. Observe operation of the motor, belt, sheaves and fan. Become
familiar with the normal operating temperature of the motor, as well as the
sight and sound of all components as a whole.
Inspect air inlet 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 dam-
age the eliminator, fill 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 plug-
ging. Remove any debris that may have accumulated.
Check for any buildup of silt on the floor of the cold water basin. Mentally
make note of the amount, if any, so future inspections will enable you to
determine the rate at which it is forming.
View the water pattern as it exits the fill section. Consistent coverage indi-
cates that all nozzles are flowing properly. If there are dry spot in the fill or
inconsistent coverage, this may be evidence of a clogged nozzle. Inspect
nozzles for blockage.
Every 3 months: Lubricate fan shaft bearings. Each cell is equipped with
extended lube lines protruding through the casing adjacent to the access
door. While rotating equipment by hand, grease the bearings until a bead
forms around the seals—a
maximum charge of 0.75
ounces is recommended.
Mobil SHC 460 grease is
recommended.
Maintenance