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|  MIL-M-82433A(OS)
(e) Position TIME/CM switch on oscilloscope to 10 MILLISEC. Place
MOTOR REVERSING switch to CCW position. Depress MOTOR START switch. Using
VERTICAL POSITION, MV/CM MULTIPLIER, and VARIABLE controls on oscillo-
scope, position steady state motor current trace at bottom line on grat-
icule and peak motor current trace 5 cm above bottom line on graticule
(see Figure 5).
(f) Position TIME/CM switch on oscilloscope to 1 MILLISEC. Posi-
tion HORIZONTAL POSITION control on oscilloscope so that trace crosses
graduated vertical center line between 1.6 and 1.8 cm above bottom line
when MOTOR START switch is depressed (see Figure 5). Record distance
from triggering point to vertical center line. (Calibration is 5 ms/cm.)
The time constant shall be less than 12 ms. The reading shall be taken
with an accuracy of 1.0 ms.
4.7.3.9 Terminal stress test. Each motor terminal shall be pulled by
attaching a spring scale at the free end. The terminal shall be pulled
in one or more directions perpendicular to its longitudinal axis. Each
terminal shall withstand a force of 5 pounds without breaking or loosening.
4.7.3.10 Commutation noise. Using the filter-rectifier circuit and equip-
ment setup as diagramed in Figure 6, measure the noise level signal as
follows:
(a) Set power supply voltage at 38.0 1.0 volts.
(b) Start motor in clockwise direction. Observe noise level signal
on VTVM for 30 seconds; determine that maximum indication which is sus-
tained for at least one second. Record the voltage indication for CW
direction.
(c) Start motor in counterclockwise direction. Make same observa-
tion as in (b). Record the voltage for CCW direction.
The noise level voltage shall not exceed 0.75 volt for either direction
of rotation.
4.7.4 Visual inspections
4.7.4.1 Identification marking. The nomenclature, control callout and
identification data shall be correct, clear, and legible and in accord-
ante with the applicable specification control drawing.
4.7.4.2 Examination of product. Each motor shall be examined for conform-
ante with 3.5 and with the specification control drawing listed in 2.1
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