Nexen SBPA05 964950 - Manual (Page 10)

FORM NO. L-21067-C-0813 10
BRAKE ASSEMBLY
NOTE: Refer to Figures 7 & 8.
1. Alternately and evenly, remove the four Socket Head
Cap Screws (Item 11) and separate the Air Chamber
(Item 6) from the Input Flange (Item 10).
2. Remove the Output Shaft (Item 1) from the Ball
Bearing (Item 2) by pressing in on the output shaft.
3. Remove the Piston (Item 5) from the Air Chamber (Item
6). You may need to apply compressed air to the air
inlet to remove the Piston.
4. Remove the old O-ring Seals (Items 3, 4) from the
Piston.
5. Remove the Retaining Ring (Item 21) and press the
Bearing (Item 2) out of the Air Chamber (Item 6).
6. Clean the bearing bore of the Air Chamber (Item 6)
with fresh solvent, removing old Loctite®.
7. Apply a continuous bead of Loctite® 680 around
the inner circumference of the Air Chamber (Item 6)
bearing bore.
8. Carefully align the outer race of the new Bearing (Item
2) with the bore of the Air Chamber (Item 6).
9. Supporting the Air Chamber (Item 6) and pressing on
the outer race of the new Bearing (Item 2), press the
new Bearing into the Air Chamber.
10. Visually inspect the inner diameter grooves and the
outer diameter grooves of the Piston (Item 5) for
debris. Clean as necessary.
11. Reinstall the retaining ring.
12. Coat the O-ring contact surfaces of the Air Chamber
(Item 6), the Piston (Item 5), and the O-ring Seals
(Items 3, 4) with a thin film of O-ring lubricant and
install the new O-ring Seals.
13. Slide the Piston (Item 5) into the Air Chamber
(Item 6).
14. Clean the friction surface of the Input Flange and
Output Shaft (Item 6) with solvent.
FIGURE 7
FIGURE 8
(continued...)
SIZES 2, 3, 4, 5
Fused End
*Size 2 Only
Item 6
Item 5
Item 3
Item 2
Item 8
Item 4
Item 20
Item 1
Item 23
Item 21
Item 11
Item 10
Item 9
Item 7
Item 14
CAUTION
Working with spring or tension loaded
fasteners and devices can cause injury.
Wear safety glasses and take the
appropriate safety precautions.