Bendix Commercial Vehicle Systems ADB22X-V Air Disc Brakes - Manual (Page 27)

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Note: If the shear adapter fails while you are retracting
the threaded tubes, you may try again with another
(new) shear adapter. If this also fails, this indicates
that the adjuster mechanism is damaged and the
caliper must be replaced.
To install inner seals where the caliper is on the vehicle:
5.5.12 Position the replacement inner seal (22) over the
threaded tube (16). See Figures 52 and 53 for the
tools and installation arrangement used. Position
the L1 (T3 + T9) with the short spacer (T3) in
position as shown in Figure 53. Guide the tool
over the end of the threaded tube (16). Install the
new inner seal (22) into position by rotating the
adjuster nut on the T3 portion of the tool, using an
open-ended wrench.
T9 / KT09 T3 / KT03
FIGURE 52 - ON-VEHICLE INNER SEAL TOOL (L1)
L1
T9
16
X
22
FIGURE 53 - ON-VEHICLE INNER SEAL INSTALLATION
To install inner seals where the caliper has been
removed from the vehicle:
5.5.13 Position the replacement inner seal (22) over the
threaded tube (16). See Figures 54 and 55 for
the tools and installation arrangement used. The
threaded tubes need to be retracted to allow the
tool to be inserted. Use the combination tool L2
(T4 + T3 + T9) with the long spacer (T4) as shown
in Figure 55. Since the installation tool is guided by
the center post of the threaded tube, advance the
tube a small amount to align the tool and the center
post. Install the new inner seal (22) into position
by rotating the adjuster nut on the T4 portion of the
tool using an open-ended wrench.
T9 / KT09 T4 / KT04 T3 / KT03
FIGURE 54 - ON-VEHICLE INNER SEAL INSTALLATION TOOL
(L2)
L2
16
X
L2
22
FIGURE 55 - OFF-VEHICLE INNER SEAL INSTALLATION
CAUTION: To confi rm that the inner seal has been
correctly installed, begin to extend the threaded tubes
(16) by turning the shear adapter clockwise by 4-5
turns. Watch as the threaded tube extends. Inner seals
that are installed correctly WILL NOT ROTATE as the
threaded tube extends.
5.5.14 Note: Inspect the tappet/boot kit to determine if the
tappets supplied are already pre-greased (a plastic
cover should be present — be sure to remove the
cover when installing the tappet). Only in the case
of kits that are not pre-greased will the installer
need to apply grease to the tappets. In all cases,
the threaded portion of the tubes will need to be
greased. Retract the threaded tubes.
5.5.15 Install the new tappet bushing (161) onto the center
post of each threaded tube (16) by hand. By hand,
ease the tappet bushings onto the center post of
the threaded tubes and they will snap into position.
5.5.16 The sealing seat in the caliper for tappet and boot
assemblies (13) must be clean and free of grease.
Wipe the opening with a clean shop rag. Place a
tappet and boot assembly (13) in position over the
center post and tappet bushing.
To install tappet and boot assemblies where the caliper
is on the vehicle:
5.5.17 See Figures 56, 57 and 58. Use tool B1, comprising
tools T1, T2, and T3 to press the boot into position.
The tool is then reversed, and the nylon disc (T24)