Komatsu 830E-AC Shop Manual page 624

ASSEMBLY
Read and observe all Warning and Caution hazard
alert messages in this publication. They provide
information that can help prevent serious personal
injury, damage to components, or both.
Discard all backup rings, O-rings and dust boots and
use new ones when servicing the caliper.
Adjuster and Pin Assembly
Adjuster and adjuster pins are critical items in
the operation of the piston return mechanism
and must not be mishandled. Under no circum-
stances should the pin diameter be clamped in a
vise or gripped with pliers. In normal use, the
surface of the pin will show only a very slow rate
of wear and both pins and adjuster will normally
outlast many brake lining changes and brake
overhauls.
NOTE: Any rework of the adjuster pin must be
avoided unless absolutely necessary.
If required, install the adjuster onto the adjuster pin
using the following procedure.
J6-20
1. Place the adjuster and pilot pin subassembly
2. Press the adjuster (4, Figure 6-24) off the
3. Press the second adjuster onto the adjuster pin.
4. Continue to push the adjuster along the
5. After assembly, check the adjuster force of the
A. Discard pilot pin
1. Arbor
2. Special Sleeve B
3. Pilot Pin
Use of special sleeves A and B to install adjuster
onto adjuster pin in correct position for assembly
in piston subassembly.
Armature Speed Rear Disc Brakes
onto the end of the adjuster pin.
expendable pilot pin onto the adjuster pin.
adjuster pin until it contacts the previously
installed adjuster.
adjuster assembly. See instructions elsewhere
in this chapter.
FIGURE 6-24. INSTALLING ADJUSTER ON
ADJUSTER PIN
4. Adjuster Assembly
5. Adjuster Pin
6. Special Sleeve A
7. Arbor Press Table
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