MIL-A-62463B(AT)
TABLE I. Internal leakage - Type I actuator assembly.
Leakage
Requirement*
Test
No
Test item
oz/min
(cu cm/min)
Requirement
4.6.7.1
(300)
10.14
Vane seal
1.
4.6.7.2
(300)
10.14
Piston ring
2.
Wheel valve:
3.
4.6.9
(5)
0.17
Port 11 O-rings (2 at each end)
3a.
4.6.10
(5)
0.17
4-7A wheel valve leakage & related O-ring
3b.
4.6.10
(5)
0.17
1-2 wheel valve leakage & related O-ring
3c.
4.6.12
(5)
0.17
Port 3 wheel valve O-rings (2)
3d.
4.6.13
(5)
0.17
Port 1 wheel valve spool O-ring
3e.
4.6.14
(5)
0.17
2-3 wheel valve leakage & related O-ring
3f.
4.6.14
(5)
0.17
Port 4 wheel valve O-rings (2)
3g.
4.6.10
(30)
1.01
Shock check valve
4.
Leveling valve seats:
5.
4.6.11
(10)
0.34
"Fill" valve seat
5a.
4.6.14
(10)
0.34
"Drain" valve seat
5b.
Leveling valve stems:
6.
4.6.14
(50)
1.69
"Fill" valve stem
6a.
4.6.10
(50)
1.69
"Drain" valve stem
6b.
4.6.15
(500)
16.90
Combined leakage (total of 1, 2, 6a, and 6b)
7.
Relief valve:
8.
4.6.17
(30)
1.01
Internal leakage
8a.
4.6.18
(30)
1.01
Reseat leakage
8b.
*maximum allowed ounces per minute, oz/min (cubic centimeters per minute, cu cm/min).
3.4.2.3 Leveling valves.
3.4.2.3.1 Leveling "fill" valve closing. The leveling "fill" valve shall close within the rotation
specified in table II when tested per 4.6.19 through 4.6.22.
3.4.2.3.2 Leveling "drain" valve opening. The leveling "drain" valve shall open within the
rotation specified in table II when tested per 4.6.19 through 4.6.22.
TABLE II. Leveling valve operating positions.
Fill Valve Closing
Drain Valve Opening
Leveling Valve
(Amount of Shaft Rotation
(Additional Rotation From
Cam Position
(Cam Setting)
from a fully Rotated Position)
when Fill Valve Closes)
1R
59° ± 3° CW from full CCW
6° to 12°
1L
59° ± 3° CCW from full CW
6° to 12°
4R
46° ± 3° CCW from full CW
6° to 12°
4L
46° ± 3° CW from full CCW
6° to 12°
5
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business