TM-9-2520-270-34

HYDROMECHANICAL CROSSDRIVE, TRANSMISSION HMPT 500 AND TRANSMISSlON CONTAINER ASSEMBLY

TECHNICAL MANUAL; DIRECT AND GENERAL SUPPORT MAINTENANCE

NOVEMBER 1984

  TM-9-2520-270-34 - Page 658 of 933

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