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 TM 9-2320-285-24-2
3-23. TREADLE VALVE MAINTENANCE (CONT)
STEP
LOCATION
ITEM
ACTION
REMARKS
REASSEMBLY (cont)
12
d. Plunger (12)
Install
On treadle valve assembly
(cont)
and boot (11)
e. Roller (10)
Install
On roller pin (9)
f. Roller pin (9)
Install
Use punch and hammer to
install in treadle (7)
g. New cotter pin
Install and
(8)
spread
h. Treadle (7)
Position
On treadle valve assembly
i. Fulcrum pin (6)
Install
Use punch and hammer
j. Two new cotter
Install and
pins (5)
spread
INSTALLATION
13
Cab,
Brake treadle
Position
Through top of cab floor
inside
valve assembly
14
Cab,
Brake lines and
Connect
Para 2-41h(1), 2-51a, 2-53,
underside
fittings
and 3-33b
15
Cab,
Two capscrews (1),
Install and
inside
lock washers
tighten
(3), and nuts
(2)
16
Air pressure
Restore
Para 2-41h(l)
17
Instrument
Air pressure gage
Observe
For two minutes. Depress
panel
brake treadle. If air
pressure drops more than
four psig per minute, brake
treadle valve is defective,
or there is leakage
NOTE
If pressure drops more than four psig per minute in step 17 above, test for leaks as follows.
18
All connections
Test for
Apply soapy water solution to
leaks
all connections. Depress
brake treadle. If leak is
found, tighten connection.
Then repeat step 17 above.
If no leak is found,
treadle valve assembly is
defective and must be
replaced
3-168
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