Troubleshooting

Trouble

Cause

Remedy

 

 

 

 

 

If new, see if noise disappears after one week of operation. Drain flush,

Geareducer noise. (If

Geareducer bearings

and refill Geareducer oil. See Geareducer User Manual. If still noisy,

 

replace.

equipped).

 

 

 

Gears

Correct tooth engagement. Replace badly worn gears. Replace gears

 

 

with broken or damaged teeth.

 

 

 

 

 

 

Loose bolts and cap screws

Tighten all bolts and cap screws on all mechanical equipment and

 

supports.

 

 

 

 

 

 

 

Make sure motor and Geareducer shafts are in proper alignment and

 

Unbalanced drive shaft or worn couplings. (If

"match marks" properly matched. Repair or replace worn couplings.

 

equipped)

Rebalance drive shaft by adding or removing weights from balancing

 

 

cap screws. See Driveshaft User Manual

 

 

 

 

 

Make certain all blades are as far from center of fan as safety devices

Unusual fan drive vibration

Fan

permit. All blades must be pitched the same. See Fan User Manual.

 

 

Clean off deposit build-up on blades

 

 

 

 

Worn Geareducer bearings. (If equipped)

Check fan and pinion shaft endplay. Replace bearings as necessary.

 

 

 

 

Worn fan shaft bearings. (Belt drive).

Check fan shaft endplay. Replace bearings as necessary.

 

 

 

 

Unbalanced motor

Disconnect load and operate motor. If motor still vibrates, rebalance

 

rotor.

 

 

 

 

 

 

Bent Geareducer shaft. (If equipped).

Check fan and pinion shaft with dial indicator. Replace if necessary.

 

 

 

 

Blade rubbing inside of fan cylinder

Adjust cylinder to provide blade tip clearance

 

 

 

Fan noise

Loose bolts in blade clamps

Check and tighten if necessary.

 

 

 

 

Fan shaft bearing. (Belt drive).

Grease bearings.

 

 

 

Scale or foreign substance in

Insufficient blowdown

See "Water Treatment" section of this manual.

 

 

 

Consult competent water treating specialist. See "Water Treatment"

circulating water system

Water treatment deficiency

section of this manual

 

 

 

 

 

 

 

Check to see if local heat sources are affecting fluid cooler. See if

 

Entering wet bulb temperature is above design

surrounding structures are causing recirculation of tower discharge air.

 

 

Discuss remedy with Marley representative.

 

 

 

 

Design wet bulb temperature was too low.

May have to increase fluid cooler size. Discuss remedy with Marley

 

representative

 

 

Cold water temperature too

 

 

Actual process load greater than design

May have to increase fluid cooler size. Discuss remedy with Marley

warm.

representative

 

 

 

 

 

See "Tower Operation."

Overpumping

Reduce water flow rate over fluid cooler to design conditions.

 

 

 

 

 

Check motor current and voltage to be sure of correct contract

 

 

horsepower. Repitch fan blades if necessary. Clean louvers, fill and

 

Fluid cooler starved for air

eliminators. Check to see if nearby structures or enclosing walls are

 

 

obstructing normal airflow to fluid cooler. Discuss remedy with Marley

 

 

representative.

 

 

 

 

Distribution basins overflowing

Reduce water flow rate over fluid cooler to design conditions. Be sure

 

distribution water basin nozzles are in place and not plugged.

 

 

Excessive drift exiting fluid

cooler

Faulty drift elimination

Check to see that integral fill. Louvers and eliminators are clean, free of debris and installed correctly. If drift eliminators are separate from fill, make sure they are correctly installed and in place. Clean if necessary. Replace damaged or worn out components

33

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SPX Cooling Technologies Marley MH Fluid Cooler user manual Troubleshooting
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Marley MH Fluid Cooler specifications

The SPX Cooling Technologies Marley MH Fluid Cooler is a leading-edge solution designed to efficiently manage heat in various industrial applications. Renowned for its performance and reliability, the Marley MH series has become a preferred choice among engineers and facility managers seeking to optimize their cooling processes.

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