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9,4.1. S Relief valve check - When the dial of the transmitter gearing is rotated
by hand, the output torque, measured at the hydraulic motor shaft, shall be between
50 and 75 pound-inches.
3.4.1.6 Surge.- At constant rate, the change of rate shall not exceed 1-1/4 mils
of gun motion when measured in accordance with 4*3.2.5-
3.4.2 Complete oil gear. - Complete 0il gear shall meet the requirements of the
following sub-paragraphs when tested in accordance with 4,3.3.
3 . 4 . 2 , 1 O i l temperature
3.4.2.161 Starting ambient temperature between 65" and 75". - The maximum
o
temperature of the oil shall not exceed 200 F after 2 hours operation with zero output
rate.
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3 . 4 . 2 . 1 . 2 Starting ambient temperature of 125 F. - The oil gear shall not be
damaged and shal 1 meet the requirements of this specification when tested after being
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operated for a period of one hour with zero output rate for 95 percent of the time.
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3.4.2.2 Replenishing pump
pressure. - With control at neutral stroke, oil
pressure at filter s be between 150 and 160 pounds per square inch.
hall
3.4.2. S Power input. - When the stroke control is set at neutral, the power
Inputo to the electric drive motor shall not exceed 950 wattso when the 0il temperature
is 100 F, 900 watts when the oil temperature is 140 F. The thermometer shall be
between 4 and 6 inches from the bottom of the case.
3.4.2.4 Output speed. - When the oil gear is connected to a load of 94 inch-
pounds and accelerated to full speed, the coupling of the output coupling shaft shall
rotate at a minimum speed of 500 rpm.
:
3.4.2.5 Creepage. - When the synchro excitation is switched off, the output
coupling shaft of the oil gear shall not turn more than 50 rpm in either direction.
3.4.2.6 Limit cam settings. - The limit cams shall be set at -3.0 degrees + 0.5
in depression and 85 degrees + 1. O in elevation. When the limit cam is set correctly
in the elevation position and the oil gear is slewed into each limit at a speed of 25
degrees per second or greater the control mechanism shall return to its neutral
position.
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3,4.2.7 Clutches.- The slewing clutch and boresight clutch shall operate
smoothly and both clutches shall engage and disengage positively when the levers are
operated in the appropriate manner. Minimum slewing clutch engagement shall be
3/32 inch.
3.4. 2. 8 Surge. - At constant rate the change of rate shall not exceed 1-1/4 roils
of gun motion when measured in accordance with 4.3.3.4.
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