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| MIL-T-52843C
APPENDIX
TEST METHOD NO. 31
CONTROLS
1.
TEST APPARATUS:
a. Thermocouples and potentiometer or equivalent temperature
measuring device.
b. Force measurement equipment.
c. Linear measurement equipment.
2.
TEST PROCEDURE:
a.
Install the thermocouple at the hydraulic pump(s) inlet.
With an oil temperature of 160 F, to 180 F, and the engine
b.
operating at no load governed speed, measure the force and
distance required to shift each hydraulic control valve and
transmission control valve at the handgrip to each position.
c.
Apply 50 pounds of force to each hydraulic control valve
lever in each shifting direction and maintain the force for
not less than 15 seconds.
d.
Apply 100 pounds of force to each transmission control lever
in each direction and maintain the force for not less than 15
seconds.
103
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