Record angular position of output arm. The maximum varia-
tion between the two recorded angular positions above
(backlash) shall be as specified in 126.96.36.199.
188.8.131.52 Output direction
184.108.40.206.1 With the actuator mounted as in 220.127.116.11.1, the
actuator adjustment set connected as in 18.104.22.168.2, and with
the pulley driven at 5000 to 6000 rpm in a cw direction (as
viewed facing the pulley), energize the aft coil (1 and 2 of
P40) with 7 plus or minus 2 ma. The output arm shall move
as specified in 22.214.171.124.
126.96.36.199.2 With the actuator mounted and driven as in
188.8.131.52.1, energize the forward coil (2 and 3 of P40) with
7 plus or minus 2 ma. The output arm shall move as speci-
fied in 184.108.40.206.
220.127.116.11 Output torque
18.104.22.168.1 Mount the actuator to the test stand (22.214.171.124)
with the torque gage connected to the actuator output arm
(the spring load is disconnected).
126.96.36.199.2 Connect the actuator adjustment set to connector
P40 (BUWEPS Drawing 694739), and drive the input pulley at
5000 to 6000 rpm in a cw direction, as viewed from the pulley
188.8.131.52.3 Adjust the actuator adjustment set for "automatic"
variation of control current so as to alternately apply 12.5
plus or minus 0.5 ma to each clutch coil. There shall be
less than one ma in the other clutch coil. The measured
torque output from the actuator in either direction shall be
as specified in 184.108.40.206, to meet the requirement of 3.3.7.
220.127.116.11 Balanced current operation
18.104.22.168.1 With the actuator mounted and driven as speci-
fied in 22.214.171.124, adjust the actuator adjustment set so that
when the currents of both coils are within 0.25 ma of being
equal, the sum of the two currents shall be 11 plus or minus
2.5 ma. The torque shall not exceed the limits specified
in 126.96.36.199, to meet the requirements of 3.3.7.