Trane Stealth™ Air-Cooled Chiller SCWF58

Record any initial observations or concerns about belt tension

Loosen bolts A, B, and E on both sides of the sliding motor base

Loosen nuts C and D as required for motor horsepower

Slide the motor on its mounting plate to adjust tension

Adjust nuts A-D and bolt E without stretching the belts over the sheaves

Measure belt span between centers of sheaves (in inches)

Set the large 'O' ring of the tensioning gauge

Place the large end of the gauge at the center of the belt span

Press down until the large 'O' ring is even with the top of the belt line

WARNING: Hazardous Voltage w/Capacitors!

Disconnect all electric power, including remote disconnects.

Discharge all motor start/run capacitors before servicing.

Follow proper lockout/tagout procedures.

Verify with a CAT III or IV voltmeter that all capacitors have discharged.

Personal Protective Equipment (PPE)

Wear the appropriate personal protective equipment (PPE).

Inspect coils for excess moisture or icing

Check condensate flow through piping, traps, drain pan, and drainage holes

Check condition and tension of fan belts

Refrigerant and Filter Drier Inspection

Check liquid line sight glasses during operation

Inspect filter driers for leaks, flow obstructions, or temperature drop

Fan Motor and Bearings Maintenance

Verify the fan motor is properly lubricated.

Lubricate fan bearings during unit operation.

Disconnect power before inspection.

Manually rotate the fan wheel to check for obstructions or interference.

Remove obstructions and debris from the fan housing.

Center the fan wheel if necessary.