Bendix Commercial Vehicle Systems ADB22X-V Air Disc Brakes - Manual (Page 25)

25
61
Shear
13
Tappet
and Boot
Assembly
26
Spring Clip
11
Pad Retainer
12
Pad
Assembly
45
Washer
44 Pad Retainer Pin
161
Tappet
Bushing 6 Adjuster Cap
Adapter
22
Inner Seal
13 Tappet
and
Boot Assy
161
Tappet
Bushing
22 Inner Seal
FIGURE 46 - ADB EXPLODED AND SECTION VIEWS
5.5.2 Pad Removal: follow Sections 5.2.1-5.2.11 for
removal of the brake pads.
5.5.3 Inspect the Brake Rotor (See Section 4.4).
Tappet and Boot Assembly (13) Removal
CAUTION: NEVER EXTEND THE TAPPET MORE THAN
1.75 in. (44.5 mm). See Figure 47. Over-extending the
tappet will result in the tappet losing engagement with
the threads of the synchronizing mechanism. Since
the mechanism can only be set at the manufacturing
plant, the caliper/carrier assembly must be replaced
if this happens.
B
13
13
Extend
Less Than
1.75 in.
(44.5 mm)
FIGURE 47 - PERMITTED TAPPET EXTENSION
5.5.4 See Figure 47. Extend the tappets — less than
1.75 in. (44.5 mm) — by turning the shear adapter
(61) clockwise. A screwdriver (callout “B” in
5.5 TAPPET & BOOT ASSEMBLIES, AND
TAPPET INNER SEAL REPLACEMENT
5.5.1 CAUTION: Follow all safe maintenance
practices, including those listed on page two of
this document. Park the vehicle (by other means
than the foundation brakes) on level ground and
chock the wheels.
In some cases, the technician will need to remove the caliper
carrier assembly from the vehicle. (See Section 5.3.) Note
that new bolts (available from the vehicle manufacturer)
will be needed for re-installation.
Important: If the vehicle is equipped with spring brakes,
cage the spring brakes on all axles requiring work.
Consult the vehicle manufacturer’s instructions as
necessary. This procedure may be carried out with
the air disc brake installed on, or removed from, the
vehicle. In cases where the caliper/carrier assembly
is removed from the vehicle, NEW fasteners must be
used and properly torqued during re-installation. Use
only fasteners approved by the vehicle manufacturer.
Note: This maintenance procedure uses specialized
tools. The full Bendix air disc brake tool kit (K029164),
or Ken-Tool kit (80000), includes the complete set of
tools required for all permitted maintenance procedures.
Alternately, for locations where only the tappet and boot
replacement procedures will be performed, the smaller
Bendix tool kit (K028829), or Ken-Tool kit (80001) will
suffi ce. The DVD (BW7356) shows this procedure.
Bendix
Number/
Ken-Tool
Number
Description Typical Tool View
T1 / KT01 Cup
T2 / KT02 Handle for KT01 cup
T3 / KT03
Swivel assembly
(KT03-1 short body
+ KT03-2 brass disc
+ KT03-3 retaining
spring)
T4 / KT04 Long strut
T9 / KT09 Flange
T15 / KT015 Fork
T24 / KT024 Black Nylon Disc
TABLE 5 - TAPPET AND BOOT REPLACEMENT TOOLS