Baltimore Aircoil Company Cooling Tower 3527C

DANGER: Do not perform any service on or near the fans, motors, and drives, or inside the unit without first ensuring that the fans and pumps are disconnected, locked out, and tagged out.

Drain the oil at operating temperature through the drain plug.

Refill the gear drive through the oil fill elbow with the recommended type and amount of lubricant.

Upload a photo of the refilled gear drive.

Sign off on the gear drive oil replacement.

Inspect and clean as necessary:

– Check the drive alignment annually to ensure maximum belt life.

– Place a straight edge across the driver and the driven sheaves as shown in Figure 4a for standard drives and in Figure 4b for the BALTIGUARD™ Fan System or the BALTIGUARD PLUS™ Fan System.

– The straight edge should contact all four points as shown in Figure 4a indicating that the drives are properly aligned.

– There should be no more than 1/16” deviation from the four points of contact.

– In case of realignment, loosen the motor sheave, and align it with the fan sheave. Allow 1/4” for draw-up as the bushing screw is retightened.

Warning: Ensure that the fans and pumps are disconnected, locked out, and tagged out before performing any service.

Are the two pillow block ball bearings supporting the fan shaft present?

Is each bearing equipped with a lubrication fitting and a slinger/locking collar to keep out moisture?

Select the type of grease used for lubrication

Was the lubrication done with a manual grease gun or BAC’s optional Automatic Bearing Greaser?

Was high-pressure grease gun avoided to prevent rupturing the bearing seals?

Sign off on the fan shaft bearings lubrication

DANGER: Do not perform any service on or near the fans, motors, and drives, or inside the unit without first ensuring that the fans and pumps are disconnected, locked out, and tagged out.

Drain the oil at operating temperature through the drain plug.

Refill the gear drive through the oil fill elbow with the recommended type and amount of lubricant.

Upload a photo of the refilled gear drive.

Sign off on the oil replacement procedure.

Inspect general condition of the unit and check unit for unusual noise or vibration.

When operating in ambient temperatures below freezing, the unit should be inspected more frequently.

Carry out frequent visual inspections and routine maintenance services during operation in subfreezing weather.

Ensure all controls for capacity and freeze protection are set properly and functioning normally.

Prevent excessively high water levels and possible overflow of the cold water basin due to over pumping, clogged strainers, or make-up valve malfunction.

Resolve any icing conditions that may damage the unit or the supports, impair the system performance, or create a safety hazard.

Inspect air intake louvers/Combined inlet shields

Check and adjust water level in cold water basin