Section I. ELECTRIC MOTOR AND COMPONENTS
(1) Clean all parts except rotor, bearings and
The drive unit is a two horse power, 1 750 rpm, .115/ 230
stator in cleaning solvent Fed. Spec. P-D-680 and wipe
volt ac, single phase, 60 hertz induction motor for
dry with a lint free cloth.
horizontal mounting, with a type 182T frame and a drip
(2) Use compressed air to clean dust and, dirt
proof enclosure" It is controlled -by a motor starter with
off rotor, bearings and stator, then wipe with a cloth
heater and overload relay, plus a pressure switch
dampened in solvent Fed Spec P-D-680.
nominally set to turn motor ON at 175 psi, and OFF at
200 psi plus or minus 5 psi. The motor is equipped with a
(3) Inspect bearings and rotor shaft for
two-groove belt pulley. This pulley is matched to the
excessive wear and rough or scored surfaces. Replace
fanwheel pulley of compressor, and turns the compressor
defective bearings. Replace a defective rotor shaft.
at 610 rpm.
Reverse the procedures in b.
above and reassemble the motor. Tighten all nuts to
6-2. Electric Motor Repair
disassemble the motor in numerical sequence.
6-3. Motor Starter Replacement
c. Cleaning, Inspection, and Repair.