Nexen BTBA-10 927409 - Manual (Page 12)

12 FORM NO. L-21180-E-0111
15. Fully support the Endcap (Item 3) and press the ball
bearings (Item 8) out of the Endcap.
NOTE: Do not reuse the bearings. Pressing the bearings
out of the Endcap damages the bearings.
16. Clean the bearing housing of the Endcap (Item 3)
with fresh safety solvent. Make sure that all of the old
Loctite ® residue is removed.
17. Apply an adequate amount of Loctite ® 680 to evenly
coat the bearing housing of the Endcap (Item 3).
NOTE: Do not apply Loctite ® 680 directly onto the ball
bearing. Doing so would coat the groove that holds the
retaining ring with Loctite ® 680 during assembly; this
would cement the retaining ring in place.
18. Carefully align the outer race of the new ball bearing
(Item 8) with the housing of the Endcap (Item 3).
19. Support the Endcap (Item 3). Press the new Ball
Bearing (Item 8) into the Endcap by pressing on the
outer race of the Ball Bearing.
20. Apply an adequate amount of Loctite ® 680 to evenly
coat the bearing housing of the Endcap (Item 3).
21. Carefully align the outer race of the second new ball
bearing (Item 8) (BTBA-10 only) with the housing of
the Endcap (Item 3).
22. Support the Endcap (Item 3). Press the second new
Ball Bearing (Item 8) (BTBA-10 only) into the Endcap
by pressing on the outer race of the Ball Bearing.
23. Install a new Internal Retaining Ring (Item 40) in the
Endcap (Item 3).
Retaining Pin
(Item 7)
Diaphragm
(Item 14)
Piston
(Item 10)
O-Ring
(Item 33)
Retaining Ring
(Item 40)
Ball Bearing
(Item 8)
Endcap
(Item 3)
Spring
(Item 19)
Figure 13
(BTBA-12 Shown)
24. Slide new Compression Springs (Item 19) onto the
Retaining Pins (Item 7).
25. Install Retaining Rings or Finger Nuts (Item 42) into
the Retaining Pins (Item 7).
26. Apply a drop of Loctite ® 242 to the threads of the six
Facing Pins (Item 7); then, gently screw the six Finger
Nuts onto the six Facing Pins while holding the Facing
Pins with a pair of pliers, securing the six Facing Pins
and new Compression Springs (Item 19) into the
Cylinder (Item 1).
27. Install new Diaphragms (Item 14) into the Endcap
(Item 3).
28. Install new O-rings (Item 33) into the ends of the
Pistons (Item 10).
29. Place the Cylinder (Item 1) on the Endcap so that
Retaining Pins (Item 7) and Pistons (Item 10) are
aligned with their respective holes in the Cylinder.
30. Use your hand to press the Endcap (Item 3)
and Cylinder (Item 1) together, compressing the
Compression Springs (Item 19).
31. Use a clamp to temporarily hold the Endcap (Item 3)
and Cylinder (Item 1) together.
32. Apply a drop of Loctite ® 242 to the threads of the 12
Socket Head Cap Screws (Item 6) and alternately
tighten them to 270 in-lbs (30.5 Nm) securing the
Endcap (Item 3) to the Cylinder (Item 1).
33. Reinstall the Friction Facing Assemblies (Item 4) to the
Cylinder (Item 1).
34. Fully support the inner race of the Ball Bearing (Item
8) and press the Hub (Item 5) and Rotor (Item 2) into
the Endcap (Item 3).
35. Install a new Retaining Ring (Item 21) into the Hub
(Item 5).
36. To install the BTBA, see the INSTALLATION section.
CAUTION
Working with spring loaded or tension
loaded fasteners and devices can cause
injury. Wear safety glasses and take the
appropriate safety precautions.