CARNES LR/LN Instalación Funcionamiento y mantenimiento - Página 2
Navegue en línea o descargue pdf Instalación Funcionamiento y mantenimiento para Ventilador CARNES LR/LN. CARNES LR/LN 6 páginas. Wall mounted propeller fans belt and direct drive
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Imprimir página1. Before performing any maintenance on the fan, be sure power is locked OFF at the service entrance.
2. When removing or installing a belt, do not force the belt over the sheave. Loosen the motor mount bolts so the
belt can be easily slipped over the sheave.
3. Do not readjust blade pitch or fan rpm. If sheaves are replaced use only identical size and type.
All motors supplied with Carnes fans carry a one year warranty from the date of shipment. For repairs within warranty
period, the motor must be taken to the motor manufacturer's authorized service dealer. Contact your Carnes
Representative for additional warranty details.
If a belt driven fan is to be left idle for an extended period (especially over summer months), it is recommended that the
belt(s) be removed and stored in a cool, dry place to avoid premature belt failure.
MAINTENANCE
All fans must be carefully checked at least once a year. For critical or rugged applications, a check should be done
every 2 or 3 months. Lock power OFF before performing any maintenance.
1. A motor check consists of spinning the motor shaft with the power locked OFF to be sure the motor
turns freely and the bearings run smoothly. On belt drive units the belt must be removed.
2. The belt on belt driven units should be checked for cracks, ply separation or irregular wear. Problems in the belt
will result in noisy operation. If the belt has any of these defects it should be replaced.
3. Check the sheaves for any chipping, dents or rough surfaces which could damage the belt.
4. The belt alignment should be checked to make sure the belt is running squarely on the sheaves. Motor shaft and
fan shaft must be parallel. Improper alignment will result in excessive belt wear.
5. Check sheave set screws for tightness. Proper locking keys must be in keyways.
6. Check propeller set screws for tightness. Proper locking keys must be in key ways.
7. Check fan shaft bearings:
All units -
Smaller units -
Larger units (with grease fittings)-
8. Check belt tension. Belt should not feel tight. A very slight squeal on fan startup is OK.
MAINTENANCE CAUTIONS
Check the shaft set screws for tightness. Check the bearing mounting bolts for tightness.
Bearings are permanently lubricated and sealed at the factory.
Bearings are factory lubricated and require relubrication annually or more frequently if
operated under dirty, damp or high temperature conditions.
Use #2 lithium grease or equivalent.
Use a hand operated grease gun and give each bearing 1 or 2 pumps.
Mount Belts Straight
Shafts must be parallel and
sheaves in alignment to pre-
vent rapid belt wear.
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