Nexen T-450 819001 - Manual (Page 10)

10
FORM NO. L-20071-R-1211
8. Remove the old O-ring Seals (Items 11 and 12) from
the Piston (Item 2).
9. Clean the bearing bore of the Air Chamber (Item 4)
with solvent to remove all old Loctite ® residue.
10. Apply an adequate amount of Loctite ® 680 to evenly
coat the outer diameter of the new Ball Bearing
(Item 8) and press the new Ball Bearing into the Air
Chamber (Item 4).
11. Reinstall the Retaining Ring (Item 10).
12. Clean the O-ring grooves of the Piston (Item 2) and
O-ring contact surfaces of the Air Chamber (Item 4);
then, lubricate the new O-ring Seals (Item 11 and 12)
and the O-ring grooves and contact surfaces of the
Piston and Air Chamber with a thin film of fresh O-ring
lubricant.
13. Install the new O-ring Seals (Items 11 and 12) onto
the Piston (Item 2).
NOTE: Avoid pinching the O-ring Seals when
assembling the Piston and Air Chamber.
14. Slide the Piston (Item 2) into the Air Chamber (Item
4).
15. Align the pins on the Air Chamber (Item 4) with the
holes in the Piston Plate (Item 3) and slide the Piston
Plate and split Friction Facing (Item 5) onto the Air
Chamber.
Item 14 Item 1 Item 5 Item 3 Item 2 Item 12 Item 11 Item 4 Item 8 Item 10 Item 9
Item 6 Item 7
FIGURE 6
Item 13
16. Clamp the Piston Plate (Item 3) and Air Chamber (Item
4) together with C-clamps.
17. Apply Loctite ® 242 to the threads of the three new
Shoulder Bolts (Item 6) and install the new Shoulder
Bolts and new Compression Springs (Item 7).
18. Alternately and evenly tighten the three new Shoulder
Bolts (Item 6) to the recommended torque (See Table
5).
19. Remove the C-clamps.
20. Supporting the inner race of the Ball Bearing (Item
8), press the Friction Disc Hub (Item 1) into the Ball
Bearing.
21. Reinstall the Retaining Ring (Item 9).
TABLE 5
Model Bolt Size Tightening Torques
T-450
0.190-24 46.0 in-lb [5.2 Nm]
T-450A
T-600
0.312-18 245.0 in-lb [27.7 Nm]
T-600A
T-800
0.312-18 245.0 in-lb [27.7 Nm]
T-800A
T-1000
0.312-18 245.0 in-lb [27.7 Nm]
T-1000A