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 TM 9-2320-285-24-2
3-24.
BRAKE CONTROLS MAINTENANCE (CONT)
h.
Tractor Protection Valves (cont).
STEP
LOCATION
ITEM
ACTION
REMARKS
CLEANING (cont)
4
All parts
Clean
Use cleaning solvent P-D-680
and stiff bristle brush;
dry with compressed air
INSPECTION
5
a
Body (17)
Inspect
Replace if cracked or damaged
b
Seat (5) and
Inspect
Replace if cracked, scored,
plunger (11)
or damaged
c
Spring (10)
Inspect
Replace if cracked or
permanently set
d
All other parts
Inspect
Replace if cracked, broken,
or threads damaged
REASSEMBLY
NOTE
Use new items 4, 8, 9, 10, and 12 thru 15 included intractor protection
valve maintenance kit.
6
Tractor
a
Bores of body
Lubricate
protection
(17), plunger
valve
(11), seat
(10), and
O-rings (9,
12, and 13)
b
Valve (16),
Install
On plunger (11)
retainer (15)
and O-rings
(12 and 13)
c
Retaining ring
Install
Use retaining ring pliers
(14)
d
Plunger (11)
Install
In body (17)
e
Diaphragm (8),
Install
On seat (5)
washer (7),
and screw (6)
f
Spring (10)
Install
g
O-ring (9)
Install
h
Seat assembly
Install
In body (17)
(5 thru 8)
i
Retaining ring
Install
Use retaining ring pliers
(4)
3-204
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