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 TM 9-2520-270-34
8.
R E M O V E MACHINE THREAD
PLUG (1).
9. REMOVE HOSE TO BOSS
a. Using 3/8-inch drive ratchet handle
ELBOW (3) IF ATTACHED.
and 1/8-inch socket wrench attach-
ment, remove plug (1).
a. Unscrew elbow (3).
b. Remove and discard preformed
b. Remove and discard preformed
packing (2).
packing (4).
11. CHECK PISTON BORES (7)
10. CHECK BEARING BORE (5).
a. Using telescoping gage set and
a. Using indicator caliper, measure
micrometer caliper set, measure four
bearing bore (5).
piston bores (7).
b. Replace left-hand brake assembly (6)
b.
Replace left-hand brake assembly (6)
if bearing bore (5) is greater than
if any piston bore (7) is greater than
4.529 inches (115.04 mm) in diameter.
2.122 inches (53.90 mm) in diameter.
Go to step 14.
Go to step 14.
4-264
Change 2
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