the current in each clutch is less than 3 ma when the switch
for that clutch is operated. Switch the ADJ POT MAN-AUTO
POT switch to AUTO-POT and, watching the meters, adjust the
BAL CURRENT potentiometer and the two AUTO POT TRIM poten-
tiometers so as to make the peak current in each direction
fall within 12.5 plus or minus 0.5 ma. With these adjust-
ments made, the currents shall be equal within 0.25 ma
during the "balanced current" periods, as shown in Figure 2.
18.104.22.168.2 Switch the DUMMY LOAD-CLUTCH switches, one at
a time, to CLUTCH, making the transition while the current
in that side is less than 3 ma and noting the time,
22.214.171.124.3 Operate the actuator for a minimum of 30
minutes under this condition, and once during each 5 minute
interval operate the oscillograph at the slowest chart speed
for 1 or 2 cycles. There should be no excessive oscilla-
tion at rated or balanced current in either direction, nor
should there be a complete loss of travel in either direction.
126.96.36.199.4 At the conclusion of 188.8.131.52.3, return each
DUMMY LOAD-CLUTCH switch to the DUMMY LOAD position, in turn,
while the current in that clutch is less than 3 ma, and
return the ADJ POT MAN-AUTO POT switch to the ADJ POT MAN
184.108.40.206.5 Immediately after completion of a duty cycle,
measure the insulation resistance as specified in 3.3.1,
by the method indicated in 220.127.116.11.
18.104.22.168.6 Replace the spring load on the test stand with
the torque measuring device, allow the actuator to cool
within 5 degrees C (9 degrees F) of ambient, and repeat the
tests specified in 22.214.171.124.
126.96.36.199.7 Compliance with the limits of the tests speci-
fied in 188.8.131.52,6 shall satisfy the requirements of 3.3,7.
184.108.40.206 Diode. Verify that the diode complies with
requirements of 3. 3.2.3.
220.127.116.11 Tachometer. Verify that the tachometer complies
with requirements of 18.104.22.168.
22.214.171.124 Packaging and packing.
The actuator shall be
examined to ensure that it complies fully with the require-
ments of Section 5.