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 TM 5-2420-224-34
PAVEMENT BREAKER REPAIR (CONT)
NOTE
A p p l y coat of lubricating oil to
packings prior to assembly.
1.
INSTALL plug (1), spring (2), valve SPOOL
( 3 ) , new packing (4), new packing (5),
bushing (6), wiper (7), and washer (8).
2.
PRESS DOWN assembly from step 1 and
INSTALL two PINS (9).
INSTALL LEVER (10) and pin (11).
3.
4.
INSTALL new packing (12) and charging
VALVE (13) in accumulator chamber (14).
5.
APPLY light COAT of LUBRICATING OIL on
accumulator CHAMBER (14) and INSTALL
accumulator diaphragm VALVE (15) over
accumulator chamber (14) from charging valve
(13) end.
CAUTION
If press is necessary to complete
step 6, do not use powered
p r e s s and use short strokes to
prevent equipment damage.
6.
APPLY light COAT of GAA to OUTSIDE of
accumulator diaphragm valve (15) and INSIDE
o f accumulator cylinder (16). INSTALL
ASSEMBLY from STEP 5 in accumulator
cylinder (16) from chamfered end of
accumulator cylinder (16).
7.
TEST charge ACCUMULATOR assembly (17)
from STEP-6 as follows:
a . Place accumulator assembly (17) in
soft-jawed vise.
b. Loosen valve (18) 1-1/2 turns.
c . Charge accumulator assembly (17)
with nitrogen to 600 psi (41 bar).
d. Check for leaks.
21-30
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