Table 5-1. Troubleshooting (Con't)
TEST OR INSPECTION
Dry cleaning solvent P-D-680, used to clean parts, is potentially dangerous to
personnel and property. Use in a well ventilated area as the fumes are dangerous
if inhaled. Do not use near open flame or excessive heat. Flash point of solvent is
100F. - 138 F. (38 C. - 59 C.).
(3) Clean all parts except rotor, bearings
and stator in dry cleaning solvent P-D-
680 and wipe dry with a lint free cloth.
(4) Use compressed air to clean dust and
dirt off rotor, bearings, and stator, then
wipe with a cloth dampened in dry cleaning
(5) Inspect bearings for excessive wear.
Replace defective bearings.
(6) Install capacitors (17 and 18), and
capacitor case (16) on stator frame and
base (23). Replace rotor and shaft (15),
spring (7), bearing (6), front end
shield (5), bearing (13), rear end shield
assembly (12), spacer (11), fan (10),
lockring (9), fan guard (8), and four thru
(7) Replace key (3) in shaft, pulley (2)
on shaft, and replace the setscrew (1).
f. Mount electric motor on compressor and
replace mounting bolts.
g. Connect electrical leads.
h. To adjust the belts, move the motor
tension on the V-belts. Depress one of the
V-belts midway between the pulley and
flywheel; when the top lines up with the
bottom of the belt next to it under normal
thumb pressure the tension is correct.
Do not adjust the V-belts too tightly as this will overload motor and compressor
bearings. Also check and be sure pulley alignment is maintained.
i. Tighten motor mounting bolts securely.
5. Electric Motor Does Not Cut
Step 1. Check incoming power source
In At 165 PSI (11.60 kgs), And
for disconnection. Connect air
Cut Out At 190 PSI (13.36 kgs).
compressor to incoming power source.