Nexen LSCB-32 923522 - Manual (Page 8)

8 FORM NO. L-21143-J-0413
Nexen offers facing and repair kits to aid in the maintenance
of the LSCB and LSCB-HT (See REPAIR KIT section for
P/N). The facing kit contains friction facings, steel friction
plates, and springs. The LSCB-32 facing kit contains an
additional bearing. The repair kit includes friction facings,
steel friction plates, springs, o-rings, and bearings.
FACING KIT
NOTE: The following tools are needed to press the unit
apart: a shaft, two sections of I-beam, and standard
retaining ring pliers.
To press the unit together, use a hollow shaft fixture,
making sure there is contact with the inner race of the
bearing while pressing (See Table 3 & Figure 3).
DISASSEMBLY
1. Remove the three Set Screws (Item 16) from the Hub
(Item 1) (Figure 1).
2. Remove the Retaining Ring (Item 14) from the Hub
(Item 2) at the Pilot end of the unit.
3. Fasten a sprocket or a pair of plates to the pilot
mounting holes (See Table 1).
4. Set the sprocket on the two pieces of I-beam (as shown
in Figure 2) with the pilot end of the unit resting on the
I-beams.
5. Using an Arbor Press, align proper sized shaft (See
Table 2) with the Hub (Item 1) and apply pressure with
the Arbor Press to separate the pilot assembly from the
Hub (Item 1) (Figure 3).
6. Remove Friction Facings (Item 4) and Friction Plates
(Item 5) along with the springs (Item 17) from the drive
pins (Item 15) (Figure 3a).
7. Remove the Retaining Ring (Item 14) from the Air
Chamber (Item 3). (Figure 3b)
HT Models only: Remove the shoulder bolts (Item 21)
and springs (Item 22) from the Air Chamber (Item 3).
(Figure 3b)
Figure 3
Support the Air Chamber end while pressing on the
hub to prevent the unit from falling to the floor.
1
Sprocket or Plate
NOTE: Nexen recommends placing the assembly in a
box or bag to avoid loss of any small components (i.e.
springs).
Table 3
MAINTENANCE
CAUTION
Working with spring loaded or tension
loaded fasteners and devices can cause
injury. Wear safety glasses and take the
appropriate safety precautions.
Model Shaft Ø Hollow Shaft Ø
Web
Thickness
LSCB-32
25.4 - 34.8mm
[1.00 - 1.37”]
ID 35.5mm [1.4”] 6.6mm
[0.25”]
OD 53.3mm [2.10”]
LSCB-44
41.3 - 43.1mm
[1.625 - 1.70”]
ID 45.7mm [1.80”]
10.2mm
[0.40”] OD
66.0mm
[2.60”]
LSCB-54
41.1 - 50.8mm
[1.62 - 2.00”]
ID 57.2mm [2.25”]
8.6mm
[0.34”]
OD
88.9mm
[3.50”]
2
4
4
4
5
5
6
7
15
17
Figure 3a
D
E
F
C
B
A
3 2 1 5
C
D
4 6 7 8
A
B
E
F
1
Figure 3b
3
6
22
14
21