10
FORM NO. L-20094-E-0914
FIGURE 6
8
9
O-RINGS (Items 8 & 9)
Refer to Figure 6.
Replace O-rings (Items 8 &, 9) if there are noticeable air
leaks or loss of torque.
1. Proceed with Steps 1 through 8 for Friction Facing
replacement.
2. Remove O-rings (Items 8 & 9) and clean o-ring contact
surfaces.
3. Lubricate new O-rings (Items 8 & 9) and o-ring contact
surfaces with O-ring lubricant.
4. Install new O-rings.
5. Reverse Step 1 to reassemble DPB Brake, noting chalk
alignment marks, and tighten all screws to recommended
torque (See Table 2).
BEARINGS (Item 25)
Refer to Figure 7.
DPB Brake Bearings (Item 25) are prelubricated, sealed,
and do not require further lubrication.
1. Disconnect air supply lines from Adaptor Fittings (Item
16).
2. Remove Cap Screws (Item 42), Lockwashers (Item 43),
and swing Torque Arm (Item 37) clear of DPB Brake.
3. Loosen Q.D. Bushing.
a. Remove Q.D. Bushing pull-up bolts and lockwashers.
b. Insert pull-up bolts into tapped Q.D. bushing removal
holes and progressively tighten each one until
Flanged Hub (Item 36) is loose on Q.D. bushing.
4. Wedge a screwdriver into saw cut in Q.D. bushing to
loosen Q.D. bushing from shaft and remove DPB Brake.
5. Proceed with Steps 3 through 8 for Friction Facing
replacement.
6. Remove Cap Screws (Item 21) (See Fig. 7).
7. Separate Flange Mount Disc (Item 5) from Flanged
Hub (Item 36) and Splined Hub (Item 35).
8. Remove Retaining Ring (Item 27).
9. Fully supporting Splined Hub (Item 35), press Flanged
Hub (Item 36) out of Bearings (Item 25).
10. Remove Retaining Ring (Item 26) (See Fig. 7).
11. Fully supporting Splined Hub (Item 35), press Bearings
(Item 25) out of Splined Hub.
12. Clean bearing contact surfaces of Flanged Hub (Item
36), and Splined Hub (Item 35) with safety solvent.
13. Press new Bearings (Item 25) into Splined Hub (Item
35).
NOTE: When installing new bearings, carefully align
bearing O.D. with bore of splined hub. Apply
Loctite 601 or equivalent to outer race of new
bearings.
(continued...)
CAUTION
Working with spring loaded or tension
loaded fasteners and devices can cause
injury. Wear safety glasses and take the
appropriate safety precautions.
PARTS REPLACEMENT (continued)
