Gast NL52 - Manual (Page 3)

Check the direction of the motor airflow. A single
rotation motor will operate properly only in one
direction.
Single rotation motors require a sound absorber to be
connected to the exhaust air port. Remove the plastic
shipping plugs from the ports. Save plugs for future
use during shutdown.
Install a 5-micron filter in the air line before the
connection to the motor. Next install an air pressure
regulator to control motor speed and torque.
Clean the compressed air connection with low pressure
air to remove any dirt from the line before connecting to
the ports.
Use the proper sized fasteners. For the most efficient
output and control of speed, use air lines that are the
same size as the motor inlet port if the connection is
less than 7 feet (2 meters). For longer connections, use
the next pipe size larger than the motor intake port.
Connect lines to motor in the proper direction.
Connect the sound absorber on the exhaust air port or
valve connection.
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Do not add any thrust to the end or side of the shaft
when making connections.
Lubricating the drive shaft will make assembly
easier. Use a puller for removal of pulleys,
couplings and pinions on the motor shaft.
Check that the tension on the belt pulley
matches the manufacturer’s specifications. Do not
exceed the maximum radial and axial forces on the
shaft. If the motor shaft is connected to the part to be
driven without a coupling, check that the radial offset
and axial force effect will not cause problems.
Do not use a hammer on the shaft or
connections.
Use only belts with < 10
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electrical leakage
resistance to prevent static electrical problems.
Ground the motor.
Accessories
A muffler is shipped with the air motor (except 16AM)
but is not installed. Consult your Gast
Distributor/Representative for additional filter
recommendations. Install a moisture trap and 5 micron
filter in the air line ahead of motor.
Air consumption data at various speeds and pressures
are available from your Gast Distributor/Representative
or the factory.
Check all connections before starting motor. It is your
responsibility to operate this product at recommended
speeds, loads and room ambient temperatures. Do not
run the motor at high speeds with no load. This will
result in excessive internal heat that may cause motor
damage.
OPERATION
The starting torque is less than the running torque. The
starting torque will vary depending upon the position of
the vanes when stopped in relation to the air intake
port.
Use a pressure regulator and/or simple shut-off valve to
regulate the motor’s speed and torque. This will
provide the required power and will conserve air. Open
the air supply valve to the motor. Set the pressure or
flow rate to the required speed or torque.
Mounting
This product can be installed in any orientation. Mount
the motor to a solid metal base plate that is mounted to
a stable, rigid operating surface. Use shock mounts to
reduce noise and vibration. Install a pressure regulator
or simple shut-off valve to control motor.
Connection
Operate the motor for approximately 2 hours at
the maximum desired load. Measure the
surface temperature of the motor on the casting
opposite the pipe ports. The maximum surface
temperature listed on the motor is for normal
environmental and installation conditions. For most air
motors, the maximum surface temperature should not
exceed 266ºF/130ºC. Do not continue to operate the
motor if the measured surface temperature exceeds
temperature listed on the motor. If your measured
temperature does exceed listed value, consult with your
Gast Distributor/Representative for a recommendation.
Injury Hazard
Air stream from product may contain solid or liquid
material that can result in eye or skin damage.
DO NOT use combustible gases to drive this motor.
Wear hearing protection. Sound level from motor
may exceed 85 db(A).
Failure to follow these instructions can result in
burns, eye injury or other serious injury.