TM 55-4920-428-13
f. Connect No. 1 multimeter to receptacle pin J1-14 and ground.
g. Set the BITE switch to SAS 1 CROSS. No. 1 multimeter shall indicate 0.83 to 0.93 volts ac. The
DVM shall indicate 8.00 to 10.00 millivolts dc. Set SAS 1 FEEDBACK SELECT switch to SELF.
h. Connect No. 1 multimeter to receptacle pin J7-4 and ground.
i. Set the BITE switch to SAS 2 SELF and the SAS 2 FEEDBACK SELECT switch to CROSS. No. 1
multimeter shall indicate 0.83 to 0.93 volts ac. The DVM shall indicate 8.00 to 10.00 millivolts dc.
j. Connect No. 1 multimeter to receptacle pin J7-14 and ground.
k. Set the BITE switch to SAS 2 CROSS and the SAS 2 FEEDBACK SELECT switch to SELF No. 1
multimeter shall indicate 0.83 to 0.93 volts ac. The DVM shall indicate 8.00 to 10.00 millivolts dc.
4-53. Hydraulic Unit Control Circuit Test.
(See fig. 1-9 for J9 pin pattern.)
a. Press the SOLENOID SHUTOFF switch to CLOSED.
b. Set No. 1 multimeter to measure ac volts. Connect it to receptacle pins J9-4 and J9-7. The mul-
timeter shall indicate 0 volt.
c. Press the SOLENOID SHUTOFF switch to OPEN. No. 1 multimeter shall indicate 110 to 120
volts ac.
e.
d.
f.
g.
h.
i.
j-
Press the SOLENOID SHUTOFF switch to CLOSED.
Press the CYCLE MOTOR switch to OFF.
Connect No. 1 multimeter to receptacle pins J9-10 and J9-1. No. 1 multimeter shall indicate 0 volt.
Press the CYCLE MOTOR switch to ON. No. 1 multimeter shall indicate 110 to 120 volts ac.
Set the power switch to OFF.
Turn off and disconnect the autotransformer.
Disconnect the power cable.
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