Sullair TS-32S Operator's Manual And Parts List page 56

Section 7
MAINTENANCE
Figure 7-11 Drive Bolt Tightening Pattern
drive bolts provided, and dip threads of ALL
drive bolts with overload washers in SAE 30 or
equivalent oil. Insert drive bolts with overload
washers through alternate holes in each disc-
pack and through the small holes in each end of
the spacer, and install nuts until bolts protrude
through nut. DO NOT FULLY TIGHTEN.
3. Insert the remaining drive bolts from the counter-
bore side of each adapter through the three
small non-threaded holes, and through through
the remaining holes in each discpack. These
bolts should now be protruding through the large
holes in each flange of the spacer. Install the
remaining overload washers and nuts onto
these bolts. All nuts should be on the spacer
side and all bolts heads located in the adapter.
4. Refer to Figure 7-11. Tightening of all drive bolts
should be done with the center component
assembly in a horizontal position. The most reli-
able method of tightening drive bolts is achieved
using Drive Bolt Elongation. Measure the length
of the #1 drive bolt with an outside micrometer
and record. Hold the drive bolt head and tighten
the nut to the tightening torque listed in
1 Installation Data. Recheck drive bolt length.
Subtract the first reading from the second read-
ing. Compare the difference to the elongation
listed in Table 7-1 Installation
increase or decrease tightening to achieve prop-
Figure 7-12 Bolt Tightening
50
Figure 7-13 Hub Cutaway
Table 7-
Data. If required,
er elongation. Repeat this procedure for each
drive bolt in cylinder head fashion illustrated in
Figure 7-11.
SHRINK DISC INSTALLATION
Refer to Figures 7-12 and 7-13. Shrink discs are
supplied ready for installation. Therefore, they
should not be disassembled prior to initial installa-
tion.
INSTALLATION SEQUENCE
1. Remove spacers placed between collars for pro-
tection during transportation.
2. Take any three locking screws forming the points
of an equilateral triangle (e.g. screw 1, 5 and 9
in Figure 7-12) and tighten them slightly until the
inner ring can still just be turned.
3. Slide shrink disc over the hub. The hub outside
surface can be greased.
Never tighten locking screws before shaft is inside
the hub.
4. Degrease the hub bore and shaft seat.
5. Insert shaft or slide hub over the shaft.
6. Refer to Figure 7-12. Tighten all locking screws
gradually and all the way around (not in diamet-
rically opposite sequence).
Several passes are required until all screws are
torqued to specified tightening torque of 42 ft.-lbs.
(57 Nm). Check tightening torque (42 ft.-lbs. [57
Nm]) with a torque wrench. Both collars must
remain an equal distance apart.
REMOVAL
Shrink disc removal procedure is similar to installa-
tion.