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SELECTOR AND PRESSURE CONTROL VALVE
MAIN RELIEF VALVE
TM-5-3805-258-24-1 Loader Scoop Type DED 4x4 Articulated Frame Steer 2 1/2 Cubic Yard Bucket (CCE) Airborne/Airmobile Manual
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TM 5-3805-258-24-1
956B
HYDRAULIC
SYSTEM
SPECIFICATIONS
CONTROL VALVES FOR LIFT,
TILT AND ATTACHMENT
(1)
(2)
(3)
(4)
(5)
(6,7,9,10)
Torque
toinstall theline
relief
valves
. . . . . . . . . . . . . . . . . . . . . . . . . .
~25N.m(48~41b.ftJ
(4T2749)
4T470
Springs
(outer)
Free
length
after
test
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
64.5
mm(2.54
in.)
Outside diameter
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
51.41 mm(2.024
in.)
3G8991
Springs
(inner):
Length
under
test force
. . . . . . . . . . . . . . . . . . . . . . . .
43.37
mm(l.707
in.)
Test
force
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
111 &
6N(25.O
f
1.31b.)
Free
length
after
test
. . . . . . . . . . . . . . . . . . . . . . . . . . .
75.05
mm(2.955
in.)
Outside
diameter
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
25.79
mm
(1.015
in.)
7S8491
Springs
for
load
check
valves:
Length
under
teat
force
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
25.4
mm
(1.00
in.)
Test force
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
19.2 + 1.6 N
(4.31
* .35 lb.)
Free length
after
test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.1 mm
(1.82
in.)
Outside diameter
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30.18
mm
(1.188
in.)
1
J8960
Spring
for
make-up
valve:
Length
under
test
force
. . . . . . . . . . . . . . . . . . . . . . . .
67.46
mm
(2.656
in.)
Test
force
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
12.4 k 1.0 N (2.78 * .22 lb.)
Free length after test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82.6 mm (3.25 in.)
Outside diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28.58 mm (1.125 in.)
Length under test force . . . . . . . . . . . . . . . . . . . . . . . . 67.46 mm (2.656 in.)
Test force . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12.4 2 1.0 N (2.78 Y .22 lb.)
Free length after teat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62.6 mm (3.25 in.)
Outside diametw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26.58 mm (1.125 in.)
Torque
for fivetilts . . . . . . . . . . . . 60t4N.m (60~31b. ft.)
(8) Torque to instsll main relief
valve . . . . . . . . . . . . . . . . . . . . . . . . .
110 ~ 10 N*m (SO t 7 lb. ft.)
2-66
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