Nexen STC600 927270 - Manual (Page 9)

FORM NO. L-20294-E-1209 9
FRICTION FACING REPLACEMENT
Refer to Figures 5 - 7.
NOTE
This section is for FRICTION FACING REPLACEMENT only.
If a Repair Kit is to be used, refer to PARTS REPLACEMENT.
1. Remove the six Socket Head Cap Screws (Item 25).
2. Remove the End cap (Item 3) and Cylinder (Item 1).
3. Remove the Retaining Ring (Item 21).
4. Insert two customer supplied 3/8-16 UNC bolts into the
anti-rotation holes located on the O.D. of the Piston Guide
(Item 11).
5. Support the STC on the two bolts installed in Step 4; then,
press the Piston Guide (Item 11) and Ball Bearing (Item 22)
off the Hub (Item 5).
7. Slide the Drive Ring (Item 2), Rotor (Item 17), and Shroud
(Item 15) off the Hub (Item 5).
NOTE
The Flat Head Machine Screws (Item 27) securing the
Friction Facing (Item 4) on the STC are installed with a
anaerobic thread locking compound. If removal is difficult,
insert a properly fitting screwdriver into the head of the Flat
Head Machine Screw; then, strike the end of the screwdriver
with a hammer to break the crystalline structure of this
compound and allow removal of the Flat Head Machine
Screw. Never use an impact wrench to remove the Flat
Head Machine Screws.
8. Remove the six Flat Head Machine Screws (Item 27) that
secure the Friction Facing (Item 4) to the Pilot Mount Drive
Disc (Item 6).
9. Remove the old Friction Facing (Item 4).
10. Using six new Flat Head Machine Screws (Item 27), secure
the new Friction Facing (Item 4) to the Pilot Mount Drive Disc
(Item 6).
11. Tighten the six Flat Head Machine Screws (Item 27) to the
recommended torque (See Table 2).
12. Slide the Drive Ring (Item 2), Rotor (Item 17), and Shroud
(Item 15) onto the Hub (Item 5).
13. Press the Piston Guide (Item 11) and Ball Bearing (Item 22)
onto the Hub (Item 5).
14. Remove the two customer supplied 3/8-16 UNC bolts from
the anti-rotation holes located on the O.D. of the Piston Guide
(Item 11).
FIGURE 5
25
3
1
21
FIGURE 6
Customer supplied
3/8 -16 UNC bolts.
11
22
2
17
15
5
FIGURE 7
27
4
6
MODEL
RECOMMENDED TORQUE
FLAT HEAD MACHINE SCREWS (ITEM 27)
STC600 26 In. Lbs. [2.9 Nm]
STC940 86 In. Lbs. [9.7 Nm]
TABLE 2
CAUTION
Working with spring loaded or tension
loaded fasteners and devices can cause
injury. Wear safety glasses and take the
appropriate safety precautions.