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4560 Mini Bench Top Reactors
Parr Instrument Company
Revision 6-28-02
Air Motor
Variable speeds from 100 to 2000
rpm with no spark hazard can be obtained
by replacing the standard motor with an
A1393HC air motor assembly. This motor
operates on compressed air which must be
supplied at 40 psig minimum pressure with
at least 10 CFM available at that pressure.
It is furnished with a speed control valve and
oiler, all assembled on a mounting bracket.
To operate reactors equipped with an
air motor, mount the assembly firmly on the
stand and connect the air hose to a
compressed air line. For best torque and
speed control the piping to the motor should
be at least 1/4" IPS or larger. Fill the oiler
with SAE 10 motor oil and adjust the oiler to
feed one drop per minute into the air stream.
For long continuous runs at high speeds the
oiling rate should be increased to three
drops per minute.
If the motor becomes sluggish, flush it
with a non-flammable solvent in a well
ventilated area. Disconnect the air line and
muffler and pour a small amount of solvent
into the inlet port. Rotate the shaft by hand
in both directions for a few minutes; then
connect the air line and run the motor until
there is no further trace of solvent in the
exhaust.
If the muffler felts are dirty, wash
them in solvent or replace them.
Re-lubricate the motor with a squirt of oil into
the chamber and reassemble.
If it becomes necessary to
disassemble the motor to replace the vanes,
follow the directions given in the instruction
sheet published by the Gast Manufacturing
Corporation, Benton Harbor, Michigan.
Air Motor O
tion
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