Nexen FMCBES-625 801652 - Manual (Page 8)

FORM NO. L-20178-N-0513 8
FMCBES 625, 875, 1125, AND 1375
1. Remove the four Socket Head Cap Screws (Item 14)
and separate the two halves of the FMCBES (See
Figure 4).
NOTE
The Flat Head Machine Screws are assembled with
an anaerobic locking compound. Inserting a properly
fitting screwdriver into the head of the Flat Head Ma-
chine Screw and striking the end of the screwdriver
with a hammer will break the crystalline structure of
this locking compound and allow removal of the Flat
Head Machine Screws. Never use an impact wrench
to remove the Flat Head Machine Screws.
2. Remove the six old Flat Head Screws (Item 12) and
the first old split Friction Facing (Item 11) (See Figure
5).
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) (See Figure 5).
4. Remove the six old Flat Head Screws (Item 12) and
the second old Friction Facing (Item 11) (See Figure
5).
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 the
recommended torque (See Table 3).
NOTE
Release the air pressure to the FMCBES.
7. Install the second new split Friction Facing (Item 11)
and new Flat Head Screws (Item 12) (See Figure 5).
8. Tighten the six new Flat Head Screws (Item 12) to the
recommended torque (See Table 3).
9. Apply a drop of Loctite 242 to the threads of the Socket
Head Cap Screws (Item 14) (See Figure 4).
10. Install and tighten the four Socket Head Cap Screws
(Item 14), securing the two halves of the FMCBES to
the recommended torque (See Figure 4 and Table 3).
PARTS REPLACEMENT–FRICTION FACINGS
FIGURE 5
11
11
Insert screwdriver
to remove second
split Friction Facing.
11
12
12
Splined Disc
(Item 9)
FIGURE 4
Socket Head Cap Screw
(Item 14)
TABLE 3
FMCBES
Model
Recommended Torque
Socket Head Cap Screws
Facing Screw
Torque (Item 12)
625
(Item 14)
232-301 In. Lbs. [26-34 Nm]
26 In. Lbs.
(2.9 Nm)
875
(Item 14)
232-301 In. Lbs. [26-34 Nm]
26 In. Lbs.
(2.9 Nm)
1125
(Item 14)
232-301 In. Lbs. [26-34 Nm]
71 In. Lbs.
(8.0 Nm)
1375
(Item 14)
509-662 In. Lbs. [57-75 Nm]
71 In. Lbs.
(8.0 Nm)