Section 8
MAINTENANCE
54
orifice (located at the bottom of the regulator; refer
to Figure 8-6). Lock the adjusting screw in place
with the locknut. The regulators are now properly
set.
SHAFT COUPLING MAINTENANCE
Refer to Figure 8-7. The compressor unit and motor
are rigidly connected via a rigid adapter piece, thus
the shafts are maintained in proper alignment at
assembly. The only component requiring regular
inspection or servicing is the coupling flexible ele-
ment, which may be accessed as follows:
INSPECTION/REMOVAL OF FLEXIBLE ELE-
MENT
1. Loosen fasteners securing wireform guard to the
distance piece and remove to allow access to
the coupling assembly.
2. Loosen and remove all capscrews securing each
flexible element half to the shaft hubs.
3. Inspect each element body for signs of tears or
separation away from the metal flanges - if any
faults are found, elements must be replaced and
Sullair contacted for further assistance.
4. Reassemble in reverse order. Capscrews must
be re-torqued to 39 ft.-lbs. (53 Nm) (dry). Please
note that capscrews have self-locking patches
good for two re-uses, but the application of a
thread-locking adhesive increases this number.
Please note that replacement of either shaft hub
requires the removal of the motor, an operation best
handled by Sullair personnel.
DO NOT lubricate capscrew threads.
Disconnect all power at source before attempting
maintenance or adjustments. Follow lockout
procedures (Refer to Section 1, Safety).
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