Amcot ST Series - Belt Replacement

AMCOT ST SERIES FIBERGLASS COOLING TOWER
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GENERAL MAINTENANCE
Mechanical Systems
Belt Replacement
Over time even with successful tensioning, your V-belts will require replacing. The following
chart is the list of belts associated with the gear reducers for ST Series towers ST-225 to ST-1500.
1) Turn off unit and perform lockout/tag-out procedures
2) Remove the outer housing panel.
3) Loosen the adjusting nut and slide the intermediate shaft assembly towards the middle of the
unit until the belts can be removed.
4) Clean and inspect the pulleys.
5) Install new belts.
6) Slide the intermediate shaft towards the outside.
7) Tighten the adjusting nut until the adjusting washer is aligned with the end of the adjusting
gauge.
The following table provides the belt sizes and quantities for the various V-Belt reducers used on the
Amcot ST Series cooling towers.
V-BELT SIZES AND QUANTITIES FOR LBM TYPE REDUCER
TOWER MODEL
REDUCER
MODEL
FAN
SPEED
V-BELT SIZE
NUMBER
OF BELTS
(UPPER)
NUMBER OF
BELTS
(LOWER)
TOTAL
BELTS
PER SET
ST-225 & 250
LBM-055C
398
2-11Ms-800
1
-
2
3-11Ms-800
-
1
ST-300 & 350
LBM-075
398
2-11Ms-800
-
2
3
3-11Ms-800
1
-
ST-400 & 500
LBM-110
342
2-11Ms-1400
1
-
2
3-11Ms-1400
-
1
ST-600 & 700
LBM-150
282
2-11Ms-1400
1
1
3
3-11Ms-1400
-
1
ST-800 & 1000
LBM-220
265
2-11Ms-1550
-
2
4
3-11Ms-1550
1
1
ST-1250 & 1500
LBM-300
260
2-11Ms-1550
2
2
6
3-11Ms-1550
-
2