Installation Guide
Lock out the power source before the installation of all accessories.
Fan electrical power can now be applied and special attention should be given to determine if motor is working
properly. At this time, with air system in full operation, with guards attached, it is well for the electrician to measure
the operating amperage of the motor and compare with the nameplate rating to determine that the motor is operating
under safe load conditions.
The fan should not need balancing, as it was balanced at the factory to meet stringent vibration levels before
shipment. However, there are several things that may cause vibration, such as rough handling in shipment and
erection, weak foundations, and alignments.
MAINTENANCE:
1. Before performing any maintenance on the fan, be sure power is turned off and locked in the OFF position at
the service entrance before servicing the fan.
2. Ventilators should be carefully checked at least once a year. For critical or rugged applications, a routine
check every two or three months is suggested.
3. All motors supplied with Soler & Palau USA ventilators carry a one-year warranty from date of shipment. For
repairs within the warranty period, the motor must be taken to the motor manufacturer’s authorized service
dealer. Contact your representative for additional warranty details.
4. A periodic motor check should consist of spinning the motor shaft with the power off to be sure the motor turns
freely and the bearings run smoothly. The belt on belt driven units should be removed from the motor sheave.
5. When removing or installing a belt, do not force the belt over the sheave. Loosen the motor mount so that the
belt can be easily slipped over the sheave.
6. The belt on belt driven units should be removed and carefully checked for radial cracks, ply separation or
irregular wear. A small irregularity in the contact surface of the belt will result in noisy operation. If any of
these defects are apparent, the belt should be replaced. Check the sheaves also for chipping, dents or rough
surfaces, which could damage the belt.
7. The correct belt tension is important. If the belt is too tight it will result in excess bearing pressure on the
motor bearings and shaft pillow block and may also overload the motor. If the belt is too loose it will result
in slippage, which will quickly burn out belts. A belt should feel “live” when thumped, approximately ¼” belt
deection when subject to nger pressure (3-5 lb.) at midpoint between sheaves.
8. The belt alignment should also be checked to be sure the belt is running perpendicular to the rotating shafts.
Motor and drive shafts must be parallel. Improper alignments will result in excessive belt wear.
9. Check sheave set screws to ensure tightness. Proper keys must be in keyways.
10. Do not readjust blade pitch or fan RPM. If sheaves are replaces, use only sheaves of identical size and type.
11. If unit is to be left idle for an extended period, it is recommended that belts be removed and stored in a cool,
dry place to avoid premature belt failure.
12. The standard pillow block bearings on belt driven ventilators are factory lubricated and are provided with
external grease ttings. Relubrication annually or more frequently, if required, is recommended.
13. During the rst few months of operation, it is recommended that the setscrews be checked to assure they are
tight.
14. The rotating wheel or propeller requires particular attention in most applications since materials in the air
being handled can build up on the blades to cause destructive vibration; and may also corrode and/or erode
the blade metal to weaken the structure of the propeller. Regular inspection and corrective action at intervals
determined by the severity of each application are essential to good service life.
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