Nexen T-450 819001 - Manual (Page 9)

9 FORM NO. L-20071-R-1211
PARTS REPLACEMENT
FRICTION FACINGS
NOTE: Refer to Figure 5.
1. Align the holes in the Friction Disc Hub (Item 1) with
the Machine Screws (Item 14) holding the split Friction
Facing (Item 5).
2. Remove the old Machine Screws (Item 14).
3. Remove the old split Friction Facings (Item 5).
4. Install the new split Friction Facings (Item 5).
5. Secure the new split Friction Facings (Item 5) using the
new Machine Screws with locking patch (Item 14).
6. Tighten the new Machine Screws to the recommended
torque (See Table 4).
FIGURE 5
Align holes
with Machine
Screws.
Item 5
Item 14
Item 1
Item 5
TABLE 4
Model Tightening Torques
T-450
19 in-lb [2.1 Nm]
T-450A
T-600
T-600A
T-800
60 in-lb [6.8 Nm]
T-800A
T-1000
T-1000A
BEARING AND 0-RING SEALS
5. Alternately and evenly remove the three old Shoulder
Bolts (Item 6) and Compression Springs (Item 7).
6. Separate the Piston Plate (Item 3) and split Friction
Facing (Item 5) from the Air Chamber (Item 4).
7. Remove the Piston (Item 2) from the Air Chamber (Item
4).
1. Remove the Retaining Ring (Item 9).
2. Press the Friction Disc Hub (Item 1) out of the Ball
Bearing (Item 8).
3. Remove the Retaining Ring (Item 10).
4. Press the old Ball Bearing (Item 8) out of the Air
Chamber (Item 4).
NOTE: Refer to Figure 6.
CAUTION
Working with spring or tension loaded
fasteners and devices can cause injury.
Wear safety glasses and take the
appropriate safety precautions.