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MOTOR
PULLEY/FLYWHEEL
ALIGNMENT
NOTE: Once the motor pulley has
been moved from its factory set loca-
tion, the grooves of the flywheel and
pulley must be aligned to within 1/16"
(1.6 mm) to prevent excessive belt
wear.
The air compressor flywheel and
motor pulley must be in-line (in the
same plane) within 1/16" (1.6 mm) to
assure belt retention within flywheel
belt grooves. To check alignment, per-
form the following steps:
1.
Turn air compressor off, lock out
the power supply, and relieve all
air pressure from the air tank.
2.
Remove belt guard.
3.
Place a straightedge against the
outside of the flywheel and the
motor drive pulley.
BELT
MOTOR
PULLEY
I
AI= A2 (MEASURED)
STRAIGHT
BI= B2 (V SUAL)
EDGE
4.
Measure the distance between
the edge of the belt and the
straightedge at points A1 and A2
in figure. The difference between
measurements should be no more
than 1/16" (1.6 mm).
5.
If the difference is greater than
1/16" (1.6 mm) loosen the set
screw holding the motor drive
pulley to the shaft and adjust the
pulley's position on the shaft until
the A1 and A2 measurements
are within 1/16" (1.6 mm) of each
other.
6.
Tighten the motor drive pulley
set screw. See Parts manual for
torque specifications.
7.
Visually inspect the motor drive
pulley to verify that it is perpen-
dicular to the drive motor shaft.
Points B1 and B2 of Figure
should appear to be equal. If
they are not, loosen the setscrew
of the motor drive pulley and
equalize B1 and B2, using care
not to disturb the belt alignment
performed in step 2.
8.
Retighten the motor drive pulley
setscrew. See Parts manual for
torque specifications.
9.
Reinstall belt guard.
AiR COMPRESSOR
PUMP
iNTAKE
AND EXHAUST
VALVES
Once a year have a Trained Service
Technician check the air compressor
pump intake and exhaust valves.
iNSPECT
AIR LINES AND
FiTTiNGS
FOR LEAKS
1.
Turn air compressor off, lock out
the power supply, and relieve all
air pressure from the air tank.
2.
Apply a soap solution to all air line
fittings and connections/piping.
3.
Correct any leaks found.
iMPORTANT: Even minor leaks can
cause the air compressor to overwork,
resulting in premature breakdown or
inadequate performance.
AIR COMPRESSOR
HEAD
BOLTS
= TORQUING
The air compressor pump head bolts
should be kept properly torqued.
Check the torques of the head bolts
after the first five hours of operation.
Retighten if necessary. See Parts List
for torque specifications.
19-ENG
N001248
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