Nexen S-450 827801 User Manual
Page 10
FORM NO. L-20087-P-1112
10
NOTE: Refer to Figure 6.
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).
5. Alternately and evenly remove the three old Shoulder
Bolts (Item 6) and Compression Springs (Item 7) (See
Warning above).
6. Separate the Piston Plate (Item 3) and split Friction
Facing (Item 5) from the Air Chamber (Item 4).
7. Remove Piston (Item 2) from Air Chamber (Item 4).
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 O.D. 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.
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
4).
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).
CAUTION
Working with spring loaded or tension
loaded fasteners and devices can cause
injury. Wear safety glasses and take
the appropriate safety precautions.
TABLE 4
MODEL
BOLT SIZE
TIGHTENING
TORQUES
S-450
0.190-24
46.0 in-lb. [5.2 Nm]
S-450A
S-600
0.312-18
245.0 in-lb. [27.7 Nm]
S-600A
S-800
S-800A
S-1000
S-1000A
S-1200
0.375-16
580.0 in-lb [65.5 Nm]
S-1400
- S-450 827800 S-450 827812 S-450 827803 S-450 827804 S-450 827805 S-450 827808 S-450 827806 S-450 827807 S-450 827824 S-450 827814 S-450 827826 S-450 827828 S-450 827811 S-450 827809 S-450 827817 S-450 827823 S-450 827810 S-450 827829 S-450 827822 S-450 827830 S-450 827815 S-450 827816 S-600 827914 S-600 827901 S-600 827903 S-600 827900 S-600 827925 S-600 827928 S-600 827906 S-600 827902 S-600 827919 S-600 827911 S-600 827913 S-600 827915 S-600 827910 S-600 827916 S-600 827917 S-600 827912 S-600 827918 S-800 828000 S-800 828014 S-800 828003 S-800 828020 S-800 828004 S-800 828002 S-800 828001 S-800 828019 S-800 828012 S-800 828022 S-800 828021 S-800 828005 S-800 828009 S-800 828015 S-800 828016 S-800 828018 S-800 828010 S-800 828017 S-800 828031 S-1000 828101 S-1000 828100 S-1000 828112 S-1000 828113 S-1000 828104 S-1000 828103 S-1000 828116 S-1000 828118 S-1000 828107 S-1000 828190 S-1000 828114 S-1000 828119 S-1000 828111 S-1000 828191 S-1000 828115 S-1000 828117 S-1000 828192 S-1000 828110 S-450A 827821 S-450A 827820 S-450A 827827 S-450A 827819 S-450A 827818 S-600A 827908 S-600A 827907 S-800A 828029 S-800A 828008 S-800A 828023 S-600A 827926 S-600A 827905 S-600A 827904 S-600A 827927 S-600A 827921 S-600A 827922 S-600A 827923 S-600A 827924 S-600A 827909 S-800A 828006 S-800A 828007 S-800A 828026 S-800A 828025 S-800A 828032 S-1000A 828122 S-1000A 828121 S-1000A 828126 S-1000A 828108 S-1000A 828109