Nexen MWCB 830812 - Manual (Page 12)

12
FORM NO. L-20016-X-1209
LWCB AND MWCB
Refer to Figures 9 & 10.
1. Loosen the Set Screws (Items 28 and 29); then, remove the
Locking Nut (Item 26) and the Brake Friction Disc (Item 2).
2. Remove the Spacer (Item 16).
3. Press the Brake Assembly off the Hub (Item 1).
4. Remove the O-Ring Seals (Items 19 and 21).
5. Slide the Clutch Assembly off the Hub (Item 1).
6. Slide the Compression Spring (Item 11) off the Hub (Item
1).
7. Press the Drive Disc Assembly or the Sheave Assembly off
the Hub (Item 1).
HWCB
Refer to Figures 11 & 12.
1. Remove the Retaining Ring (Item 45) from the Clutch-
Brake.
2. Loosen the Set Screw (Item 28) and the Socket Head Cap
Screw (Item 47) securing the Locking Collar (Item 46); then,
remove the Locking Collar (Item 46) and the Brake Friction
Disc (Item 44).
3. Remove the Spacer (Item 16).
4. Press the Brake Assembly off the Hub (Item 43).
5. Remove the O-Ring Seals (Items 19 and 21).
6. Slide the Clutch Assembly off the Hub (Item 43).
7. Slide the Compression Spring (Item 11) off the Hub (Item
43).
8. Press the Drive Disc Assembly or the Sheave Assembly off
the Hub (Item 43).
FIGURE 9
Hub
(Item 1)
19
21
Brake
Assembly
16
2
26
28
29
FIGURE 10
Clutch
Assembly
Sheave
Assembly
Drive Disc
Assembly
1
11
FIGURE 11
Hub
(Item 43)
19
21
Brake
Assembly
16
44
46
45
28
47
FIGURE 12
43
Drive Disc
Assembly
Sheave
Assembly
Clutch
Assembly
11
CAUTION
Working with spring loaded or tension
loaded fasteners and devices can cause
injury. Wear safety glasses and take the
appropriate safety precautions.
DISASSEMBLy—PILOT, COUPLING, AND SHEAVE MOUNT (continued)