22204945 Rev C
EN-11
EN
BELT ADJUSTMENT
CHECKING BELT TENSION
Check belt tension should be occasionally, especially if looseness is
suspected. A quick check to determine if adjustment is proper may be
made by observing the slack side of the belt fora slight bow when the
unit is in operation. If a slight bow is evident, the belt is usually adjusted
satisfactorily.
TENSIONING BELTS
Belt tensioning can be achieved by loosening the motor anchor screws,
pushing the motor away from the pump, and retightening the motor
anchor screws. The motor can be easily moved by placing a prying tool
beneath it. A commercially available spreader or other belt tensioning
device can also be helpful should tensioning be necessary.
Follow the procedures outlined below to correctly set and measure belt
tension.
Lay a straight edge across the top outer surface of the belt drive from
pulley to sheave.
At the center of the span, perpendicular to the belt, apply pressure
to the outer surface of the belt with a tension gauge. Force the belt
to the deflection indicated in the table at right. Compare the reading
on the tension gauge to the table.
Deflection In
Inches
Min. Tension
(Lbs.)
Max. Tension
(Lbs.)
0.17
3.0
6.0
Ensure the pulley and sheave are properly aligned and the motor anchor
screws are adequately retightened prior to restarting the compressor.
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CAUTION
Improper pulley/sheave alignment and belt tension can result in
motor overload, excessive vibration, and premature belt and/or
bearing failure.
To prevent these problems from occurring, ensure the pulley and
sheave are aligned and belt tension is satisfactory after installing
new belts or tensioning existing belts.
TANK INSPECTION
The life of an air receiver tank is dependent upon several factors including,
but not limited to, operating conditions, ambient environments, and
the level of maintenance. The exact effect of these factors on tank
life is difficult to predict; therefore,
Ingersoll Rand
recommends that
you schedule a certified tank inspection within the first five years of
compressor service. To arrange a tank inspection, contact the nearest IR Air
Center or distributor, or call 1-800-AIR SERV.
If the tank has not been inspected within the first 10 years of compressor
service, the receiver must be taken out of service until it has passed
inspection. Tanks that fail to meet requirements must be replaced.
WARNING
Failure to replace a rusted air receiver tank could result in air
receiver tank rupture or explosion, which could cause substantial
property damage, severe personal injury, or death. Never modify
or repair tank. Obtain replacement from service center.
RELEASED 05/Apr/2018 15:16:08 GMT
