MIL-DTL-11603G(AT)
3.3 Transmission performance.
3.3.1 Functional operation. The transmission shall operate in all range and steer positions
without any indication of mechanical malfunction. In type I transmissions, the speedometer shaft
shall rotate in a clockwise direction when the transmission is operated in a forward range. With
the transmission not running, the torque effort required to move the selector shaft to any shift
position and the torque effort required to move the steer shaft shall be in accordance with table I.
TABLE I. Selector and steer shaft operation.
Type I
Type II
Type III and IV
Torque pound-inch
Torque pound-inch
Torque pound-inch
Position
(lb.-in) (N-m)
(lb.-in) (N-m)
(lb.-in) (N-m)
Selector
Neutral-low
60 - 100 (6.8-11.3)
60 - 85 (6.8-9.6)
60 - 85 (6.8-9.6)
Low-high
60 - 100 (6.8-11.3)
60 - 85 (6.8-9.6)
60 - 85 (6.8-9.6)
High-reverse
60 - 100 (6.8-11.3)
60 - 85 (6.8-9.6)
60 - 85 (6.8-9.6)
Steer
Neutral-full left
30 max. (3.39)
30 max. (3.39)
40 - 70 (4.5-7.9)
Neutral-full right
30 max. (3.39)
30 max. (3.39)
40 - 70 (4.5-7.9)
3.3.2 High range stall. When tested as specified in 4.5.7.1,the transmission high range
stall performance shall be in accordance with table II.
TABLE II. High range stall performance.
Type II
Item
Type I
and III
Type IV
Input torque (lb-ft) (N-m)
650 (881)
750 (1016)
750 (1016)
Input speed revolutions per
See figure 1
See figure 2
1300 - 1400
minute (rpm)
Output torque (lb-ft) (N-m)
See figure 1
See figure 2
2840 min. (3850)
Oil pressure pounds per square
inch (psi) (kilopascals (kPa))
Main
108 - 152
107 - 143
115 - 143
(744 - 1048)
737 - 985)
(792 - 985)
Lube
7 min. (48)
3 min. (21)
10 min. (69)
Oil flow main gallons per minute
23 min. (87)
19 min. (34)
22 min. (83)
(gal/min) (liters per minute L/min.))
Oil cooler (gal/min) (L/min.)
28 min. (106)
3.3.3 High range no-load. When tested as specified in 4.5.7.2, the transmission high
range no-load performance shall be in accordance with table III.
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