Airflex
®
DBB 8110 Brake Assembly
E-CLCL-TT001-E December 2012
16
Caution
Loctite#262 must be shaken prior to application.
Caution
Loctite #262 may irritate sensitive skin. Refer to the
product label for safety precautions.
4.2.2.4 Remove the outboard disc (58), the reaction plate
(31) and the release springs (34) and set aside.
Note
For 3 disc brakes remove one additional disc,
reaction plate and set of springs during disassembly.
Note
For 4 disc brakes remove two additional disc,
reaction plate and set of springs during disassembly.
4.2.2.5 Slide the clamp tubes (12) and one set (layer) of wear
spacers (29) off of the studs. Reinstall the clamp
tubes only. For all sizes of DBBS brakes clamp tubes
(12) are placed over every stud (6).
4.2.2.6 Place the release springs (34) onto the clamp tubes
(12) and slide the reaction plate (31) onto the clamp
tubes.
Note
For 2,3 & 4 disc brakes, sizes 20, 25 & 38 DBBS,
release springs (12) are equally spaced on 4 clamp
tubes.
Note
For 2,3 & 4 disc brakes, size 50DBBS, release
springs (12) are placed on every clamp tube.
4.2.2. 7 Slide the second disc onto the gear.
4.2.2.8 Place the release springs (34) onto the clamp tube
(12) and slide the pressure plate/cylinder assembly
onto the clamp tubes.
4.2.2.9 Lubricate the threads on the ends of the studs with
30 wt. oil or anti-seizing compound and install the
locknuts (18), washers (17) and the wear spacers (29)
removed in 4.2.2.5. The wear spacers are “stored”
under the locknuts for use after replacing friction
discs (8). See Figure 10.
Note
It is recommended to dispose of the solid wear
spacers and use split spacers when replacing the
friction discs.
4.2.2.10 While supporting the weight of the cylinder/
spring housing/pressure plate assembly, tighten
the locknuts (18), ONE TURN AT A TIME and in a
crosswise pattern, until the spring housing is seated
against the clamp tubes. Torque the locknuts to the
appropriate value. See Table 4.
Caution
The locknuts (18) must be tightened gradually to
prevent damage to the brake components.
4.2.3
Wear Adjustment with Split Wear Spacers
Note
To determine the type of wear spacers (29) installed
in the brake, refer to section 4.2.3.4 that directs to
loosen the locknuts (18) until the force of the release
springs is relieved. Once the assembly is loose, the
wear spacers can be rotated to confirm that they
are the ‘Split Spacers’. The split wear spacers are
identified by the presence of a slot running across
the thickness of the spacer. If the wear spacers do
Figure 10
DBBS Brakes
Summary of Contents for Airflex DBBS
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