Compressors With Optional Spiral Valve; Shaft Coupling Maintenance - Sullair LS-200S Operator's Manual And Parts List

Section 7
MAINTENANCE
Figure 7-5 Regulator Adjustment
(5) psi over rated pressure. Turn the inlet valve reg-
ulator adjusting screw until air just begins to escape
from the control air orifice (located at the bottom of
the regulator; refer to Figure 7-5). Lock the adjust-
ing screw in place with the locknut. The regulator is
now properly set.
COMPRESSORS WITH OPTIONAL SPIRAL
VALVE
Start the compressor and adjust the service valve to
maintain service air pressure approximately at five
(5) psi over rated pressure. Turn the inlet valve reg-
ulator adjusting screw until air just begins to escape
from the control air orifice (located at the bottom of
Figure 7-6 Drive Coupling
40
the regulator.). Lock the adjusting screw in place
with the locknut.
Readjust the service valve to maintain service air
pressure approximately one (1) psi over rated pres-
sure. Turn the spiral valve regulator adjusting screw
until air just begins to escape from the control air
orifice (located at the bottom of the regulator.). Lock
the adjusting screw in place with the locknut. The
regulators are now properly set.

SHAFT COUPLING MAINTENANCE

Refer to Figure 7-6. The compressor unit and motor
are rigidly connected via a rigid adapter piece, thus
the shafts are maintained in proper alignment at
assembly. For reference only, the allowable angular
and parallel shaft misalignments are presented in
Figure 7-7. The only component requiring regular
inspection or servicing is the coupling flexible ele-
ment, which may be accessed as follows:
Disconnect all power at source before attempting
maintenance or adjustments.
procedures (See Safety Section).
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
Follow lockout