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Page Title:
CHECK 10 STATIONARY BRAKE PLATES |
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 TM 9-2520-270-34
14. CHECK 10 STATIONARY BRAKE
15. CHECK NINE ROTATING BRAKE
PLATES (1).
PLATES (2).
Using micrometer caliper set, measure
a.
a. Using micrometer caliper set, measure
thickness of each plate (1) in three
thickness of each plate (2) in three
places. Replace all 19 plates if any
places. Replace all 19 plates if any
plate measures less than 0.080 inch
plate measures less than 0.093 inch
(2.03 mm), and go to step 16.
(2.36 mm), and go to step 16.
b.
Using flat surface and feeler gage,
b. Using flat surface and feeler gage,
check for warpage on both inside and
check for warpage on both inside and
outside edges. Replace all 19 plates if
outside edges. Replace all 19 plates
warpage of any plate (1) is greater
if warpage of any plate (2) is greater
than 0.010 inch (.25 mm), and go to
than 0.010 inch (.25 mm).
step 16.
16. REMOVE INNER SPRING RETAINER (3)
AND SPRING RETAINER PLATE (4).
Using 3/8-inch drive brace handle and
7/16-inch socket, loosen six screws (5).
17. CHECK 10 SPRINGS (7).
Loosen two turns at a time to evenly
relieve spring pressure.
a. Using indicator caliper, measure free
length of spring (7). Replace spring if
Remove six screws (5) and
free length is less than 1.5 inch
washers (6).
(38 mm).
Remove retainer (3), 10 springs (7),
b. Repeat step 17a for all springs (7).
and plate (4).
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4-327
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