9
LANCE II SERVICE MANUAL
A629
1. TORQUE PLATE ASSY.
2. ANCHOR BOLT
3. BRAKE LINING
4. RIVET
5. BACK PLATE ASSY.
6. BOLT
7.
"O" RING
S. PISTON ASSY.
9. PRESSURE PLATE ASSY.
10. INSULATOR
11.
SNAP
L
3
4
5
7
30-83
3065
Figure
7-17. Wheel
Brake Assembly
7-58. CLEANING,
INSPECTION AND REPAIR
OF WHEEL BRAKE ASSEMBLY.
a.
Clean the assembly
with a
suitable solvent
and dry thoroughly.
b. Check the wall
of the cylinder housing and piston for
scratches, burrs, corrosion, etc.,
that may damage "O" rings.
c. Check the general condition of the brake bleeder screw and lines.
d. Check
the brake disc for
wear, grooves, scratches,
or pits. Minimum
service thickness
of Disc 164-22A used on Wheel Assembly
40-90A is .345. A heavy duty
brake and wheel
assembly
is also optional.
The minimum disc
thickness of Disc
164-46 used on heavy
duty
Wheel Assembly 40-120 is .405.
A single groove or isolated grooves
up to .030 of an inch deep
would
not necessitate replacement, but a grooving
of the entire surface would reduce
lining life
and should be replaced. Should it be
necessary to remove the wheel disc,
refer to Paragraph
750.
e. It is recommended that
both bearing surfaces of disc 164-46
used on heavy duty wheel
assembly
be inspected periodically for the
following items which would make replacement
of
the disc
necessary.
1.
Any crack exceeding .80 inch
in length or .21 inch in
depth.
2. Any crack extending
into the welded seam
between the flange and cup.
3. If crack depth is not measurable,
replace disc if crack length
exceeds .400.
Revised:
10/3/80
LANDING GEAR AND BRAKE SYSTEM
1L5
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