Nexen MCB-800 830853 User Manual
Page 11
FORM NO. L-21082-E-0110
11
PARTS REPLACEMENT (continued...)
NOTE: Refer to Figure 9.
29. Remove the Retaining Ring (Item 13) from the Air
Chamber Housing (Item 3).
30. Press the old Ball Bearing (Item 10) out of the Air
Chamber Housing (Item 3).
31. Clean the bearing bore of the Air Chamber Housing
(Item 3) with fresh safety solvent, making sure all old
Loctite
®
(or equivalent) residue is removed.
32. Apply an adequate amount of Loctite
®
680 (or
equivalent) to evenly coat the outer race of the new
Ball Bearing (Item 10).
33. Supporting the Air Chamber Housing (Item 3) and
pressing on the outer race of the new Ball Bearing (Item
10), press the new Ball Bearing into the Air Chamber
Housing.
34. Reinstall the Retaining Ring (Item 13).
NOTE: Refer to Figure 10.
35. Slide the Friction Disc Hub (Item 5), Cylinder (Item 4),
and Piston (Item 2) into the Air Chamber Housing (Item
3).
36. Apply a drop of Loctite
®
242 (or equivalent) to the
threads of the four Socket Head Cap Screws (Item 19);
then, using the four Socket Head Cap Screws, secure
the Friction Disc Hub (Item 5), Cylinder (Item 4), and
Piston (Item 2) to the Air Chamber Housing (Item 3).
37. Alternately and evenly tighten the four Socket Head
Cap Screws (Item 19) to the recommended torque
(See Table 4).
NOTE: Refer to Figure 11.
38. Press the Hub (Item 1) and Pilot Mount Drive Disc
(Item 7) or Sheave (Item 30) back into the Friction Disc
Hub (Item 5), Cylinder (Item 4), Piston (Item 2), and Air
Chamber Housing (Item 3).
39. Reinstall the Retaining Ring (Item 11) onto the Hub
(Item 1).
NOTE: Step 40 & 41 refers only to the FCB-450; models
LCB-600 & MCB-800 are complete after step 39.
40. Reinstall the Retaining Ring (Item 11b) onto the Hub
(Item 1).
41. Attach the Hub Collar (Item 25) to the Hub (Item 1)
using the three Set Screws (Item 20).
TABLE 4
FIGURE 10
Friction Disc Hub
(Item 5)
Cylinder (Item 4)
Piston (Item 2)
19
Air Chamber
Housing (Item 3)
FIGURE 9
3
10
13
l
e
d
o
M
.
o
N
m
e
tI
n
o
it
p
ir
c
s
e
D
e
u
q
r
o
T
0
5
4
-
B
C
F
9
1
w
e
r
c
s
p
a
c
b
l-
n
i
5
0
1
-
1
8
]
m
N
8
.
1
1
-
2
.
9
[
0
0
6
-
B
C
L
9
1
w
e
r
c
s
p
a
c
b
l-
n
i
5
0
1
-
1
8
]
m
N
8
.
1
1
-
2
.
9
[
0
0
8
-
B
C
M
9
1
w
e
r
c
s
p
a
c
b
l-
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i
2
9
3
-
1
0
3
]
m
N
3
.
4
4
-
0
.
4
3
[
FIGURE 11
Friction Disc Hub (Item 5),
Cylinder (Item 4),
Piston (Item 2),
Air Chamber Housing
(Item 3)
Hub (Item 1),
Pilot Mount Drive Disc
(Item 7)
Hub (Item 1),
Sheave (Item 30)
Retaining Ring
(Item 11)
CAUTION
Working with spring loaded or tension
loaded fasteners and devices can cause
injury. Wear safety glasses and take the
appropriate safety precautions.