Bard 2100-066 Rev. A - Manual (Page 13)

Cutoff plate
Direct drive biovrer showing cutoff piate
□ Check blower motor bearings.
1. Grasp blower wheel and move in back and forth and up and
down directions.
2. There should be no more than 1/8 inch back and forth
movement. There should not be any up and down movement,
3. if there is movement, bearings are wearing. Service person
should inform customer of bearing condition. If problem is
severe, blower motor should be replaced. Notify service
manager.
□ Lubricate blower motor bearings.
1. Check motor for service instructions and lubrication instructions
in xmit installation instruction manual,
2. Prelubricated motor bearings with oil ports require a few drops
of SAE No. 10 nondetergent oil every two years.
A
CAUTION
Do not over lubricate motor bearings. Excessive oil
attracts dust and dirt.
□ Clean blower compartment. A
CAUTION
Do not dislodge balanee weights attached to blower
wheel blades.
Balance weight clip
1. Remove dust and dirt for air scoops or vanes of blower
wheel. This may be done with moist rag or vacuum.
2. if blower is exeessively dirty, it should be removed from unit
and thoroughly washed/eleaned using high pressure hose.
Remove motor from blower assembly when washing blower.
Make sure motor is completely dry before it is put back
into operation.
NOTE: It is necessary to remove cutoff plate when removing
motor. Be sure to replaee plate before replacing
motor to ensure proper airflow.
□ Check blower wheel for free and balanced rotation.
1. Spin wheel. If wheel is badly out of balance or hits against
housing, blower should be replaced. Notify service manager.
2. If dislodged balance weights are found, place them in exact
location they formerly occupied. Look for scratches on blades
to show where weight clip was attached.
When wheel is spun, the heavier side will fall to bottom. This
means the side minus the weight is probably on top. If the
old location cannot be found, leave weights off rather than
risk further imbalance by inconect placement,
3. If blower was removed for cleaning, reinstall at this time.
□ Check all blower housing mounts and setscrews for tightness.
□ Check that unused motor leads are taped and out of the way.
Belt Drive Motor
A
WARNING
Be sure power to hamace is off.
□ Remove belt and check for wear.
1. Loosen motor mount and push motor toward blower wheel.
2. Remove belt by sliding it off the pulleys,
3. Check for wear by turning belt inside out and looking for
splits and cracks in the rubber.
4. Replace belt if there are signs of wear. (Leave belt off to
perform the following checks. You will be instructed when to
put it back on.)
□ Check motor bearings for wear.
1. Grasp motor pulley,
2. Push pulley in inward and outward directions. Assuming the
pulley is mounted tightly to the motor shaft or drive, there
should be no more than 1/8 inch movement or play in
either direction.
3. Move pulley in up and down directions. There should be no
movement in either direction.
4. If there is movement in motor shaft, bearings are wearing.
Service person should inform eustomer of bearing condition.
If problem is severe, motor should be replaced. Notify
serviee manager.
□ Lubricate motor bearings.
1. Check motor for service instructions and lubrication
instruction in unit installation manual.
2. Prelubricated bearings require a few drops of SAE No. 10
nondetergent oil every two years.
A
CAUTION
Do not over lubricate motor bearings. Excessive
lubrieation attracts dirt and dust. Oil splash on the belt
eauses shortened belt life.
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