Nexen FMCBES-8-42 801481 - Manual (Page 9)

9
FORM NO. L-20241-G-1209
FMCBES 7-28, 7-38, 8-38, AND 8-42
Refer to Figure 6 & 7.
NOTE
If an Input Unit is installed on the FMCBES, it must be
removed before servicing the FMCBES. Remove the
Plug (Item 35) and loosen the Set Screw (Item 34) to
release the FMCBES from the Input Unit shaft.
1. Remove the four Socket Head Cap Screws (Item 8)
and separate the two halves of the FMCBES.
2. Remove the six old Flat Head Screws (Item 12), the
first old split Friction Facing (Item 11).
NOTE
Apply sufficient air pressure to the brake to release
the brake portion of the FMCBES.
3. Align the holes in the Splined Disc (Item 9) with the
Flat Head Screws (Item 12) that secure the second
split Friction Facing (Item 11).
4. Remove the six old Flat Head Screws (Item 12) and
the second old Friction Facing (Item 11).
5. Install the first new split Friction Facing (Item 11) and
new Flat Head Screws (Item 12).
6. Tighten the six new Flat Head Screws (Item 12) to 71
In. Lbs. [8.02 N•m] torque.
NOTE
Release the air pressure to the FMCBES.
7. Install the second new split Friction Facing (Item 11),
new Flat Head Screws (Item 12).
8. Tighten the six new Flat Head Screws (Item 12) to 71
In. Lbs. [8.02 N•m] torque.
9. Apply a drop of Loctite 242 to the threads of the
Socket Head Cap Screws (Item 8).
10. Install and tighten the four Socket Head Cap Screws
(Item 8) securing the two halves of the FMCBES to
24.5 Ft. Lbs. [33.2 N•m] torque for FMCBES 7-28 and
7-38, and 49.5 Ft. Lbs. [67.1 N•m] torque for Models
8-38 and 8-42.
FIGURE 6
Plug
(Item 35)
Set Screw
(Item 34)
Socket Head Cap
Screw (Item 8)
FIGURE 7
12
11
11
12
Insert screwdriver
to remove second
split Friction Facing.
11
9
PARTS REPLACEMENT – FRICTION FACINGS