FloAire FKB-INLINE - Manual (Page 15)

15
MAINTENANCE
To guarantee trouble free operation of this fan, the manufacturer suggests following these guidelines. Most problems
associated with fan failures are directly related to poor service and maintenance.
Please record any maintenance or service performed on this fan in the documentation section located at the end of
this manual.
WARNING: DO NOT ATTEMPT MAINTENANCE ON THE FAN UNTIL THE
ELECTRICAL SUPPLY HAS BEEN COMPLETELY DISCONNECTED
General Maintenance
1. Fan discharge and approaches to ventilator should be kept clean and free from any obstruction.
2. Motors are normally permanently lubricated. Check bearings periodically. If they have grease fittings
lubricate each season. Use caution when lubricating bearings, wipe the fittings clean, the unit should be
rotated by hand while lubricating. Caution: Use care when touching the exterior of an operating motor.
Motors normally run hot and may be hot enough to be painful or cause injury.
3. All fasteners should be checked for tightness each time maintenance checks are preformed prior to
restarting unit.
4. Fans require very little attention when moving clean air. Occasionally oil and dust may accumulate causing
imbalance. If the fan is installed in a corrosive or dirty atmosphere, periodically inspect and clean the wheel,
inlet and other moving parts to ensure smooth and safe operation.
2 weeks after startup
1. Belt tension should be checked after the first 2 weeks of fan operation. Belts tend to stretch and settle into
pulleys after an initial start-up sequence. Do not tension belts by changing the setting of the motor
pulley, this will change the fan speed and may damage the motor. To re-tension belts, turn the power to the
fan motor OFF. Loosen the fasteners that hold the motor to the fan. Move the motor to the left or right to
adjust the belt tension. Belt tension should be adjusted to allow 1/64” of deflection per inch of belt span.
Exercise extreme care when adjusting V-belts as not to misalign pulleys. Any misalignment will cause a
sharp reduction in belt life and produce squeaky noises. Over-tightening will cause excessive belt and
bearing wear as well as noise. Too little tension will cause slippage at startup and uneven wear. Whenever
belts are removed or installed, never force belts over pulleys without loosening motor first to relieve
belt tension. When replacing belts, use the same type as supplied by the manufacturer. On units shipped
with double groove pulleys, matched belts should always be used.
2. All fasteners should be checked for tightness each time maintenance checks are preformed prior to
restarting unit.
Every 3 months
1. Belt tension should be checked quarterly. See instructions in the previous maintenance section. Over-
tightening will cause excessive bearing wear and noise. Too little tension will cause slippage at startup and
uneven wear.
2. Fans need to be cleaned quarterly, and more often in severe conditions. If the blower is insulated, DO NOT
PRESSURE WASH as this will damage the insulation. Instead, wipe the insulation down with a rag.
Yearly
1. Inspect bearings for wear and deterioration. Replace if necessary.
2. Inspect belt wear and replace torn or worn belts.
3. Inspect bolts and set screws for tightness. Tighten as necessary.
4. Inspect motor for cleanliness. Clean exterior surfaces only. Remove dust and grease from the motor
housing to ensure proper motor cooling. Remove dirt and grease from the wheel and housing to prevent
imbalance and damage.
Start-Up and Maintenance Documentation