MIL-PRF-46750E(AT)
3.4.9 Fourth range friction loss. The input torque shall not exceed 183 N-m (135 lb-ft)
friction loss.
3.4.10 Brake coolant pump flow. Brake coolant oil flow shall occur before engagement
of the brake plates.
3.4.11 Shift inhibitor evaluation. The input speeds at which the shifts are permitted shall
be within the speed values as specified in Table III .
TABLE III. Downshift inhibitor speed values.
Item
Min.
Max.
Input speed (rpm) - 4th to 3rd
930
1410
Input speed (rpm) - 1st to neutral
600
1180
3.4.12 Range upshift. Transmission shall upshift throughout range of operation.
3.4.13 Speedometer drive check. During transmission operation, the speedometer drive
shaft shall rotate when the left-hand output is turning.
3.4.14 Oil warm-up. The cooler-in temperature shall be maintained between 116 and
127°C (240 and 260°F) during operation as specified in 3.4.15 through 3.4.17. During
warm-up operation, oil temperature shall not exceed 149°C (300°F).
3.4.15 Range shifts. The transmission shall upshift and downshift throughout operating
range.
3.4.16 Output and steer pressure evaluation. Output and steer pressure shall be within
the limits as specified in table IV.
TABLE IV. All forward ranges performance values.
Item
First
Second
Third
Fourth
Min. Max.
Min. Max.
Min. Max.
Min. Max.
Oil pressure in kPa (psi):
Output clutch RH
0
0
1138
---
1138
---
758
---
(165)
(165)
(110)
Output clutch LH
0
0
1138
---
1138
---
758
---
(165)
(165)
(110)
5
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