Qmark WEB -Heavy-Duty Belt Drive Exhaust Fans - Manual (Page 3)

OPERATION
Before Start-Up
1. Inspect all fasteners to make sure they are secure.
A. Foundation bolts
B. Set screws in fan wheel and V-Belt drive
C. Housing, bearing and motor mounting bolts
2. Access Doors should be tight and sealed.
3. Bearings should be checked for alignment and lubrication.
4. Turn rotating assembly by hand to insure that it does not strike housing. If the wheel strikes
the housing, the wheel may have sustained damage, moved on the shaft, or the bearings
may have shifted in transit. Correction must be made before start up.
5. Check motor to insure proper speed and electrical characteristics.
A. When making electrical connections ensure that a qualified electrician adheres strictly to
the wiring diagram on the motor nameplate or in the motor terminal box. Special
attention should be given to being sure that a single phase motor is connected only to a
single phase supply of proper voltage, and that a three phase motor will only operate on
a three phase supply. Electric motors will burn out and fail immediately if improperly
connected. It is also recommended that in every motor connection an overload device
be installed between the current supply and the motor to protect the motor from under
voltage conditions and motor overloads.
6. Check V-belt drive for alignment.
Start-Up
1. "Jog" the motor to check proper wheel rotation. The motor should be started in accordance
with the manufacturer's recommendations. Arrows on fan indicate the proper direction of
rotation and airflow.
2. Fan may now be brought up to speed. Watch for anything unusual such as vibration,
overloading of bearings and motors, etc.
3. Check motor amperage against nameplate amperage to ensure motor is not overloading.