Quantcast Table 2-1. Troubleshooting - Continued - TM-5-6675-250-340087

 

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Figure 2-79. Interconnect breakout box.
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TM-5-6675-250-34 Survey Instrument Azimuth Gyro Lightweight( Leaser Siegler Inc. Models AG-8 and AG-8A) Manual
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Figure 2-80. Caging cam switch adjustment
TM 5-6675-250-34
Table 2-1. Troubleshooting - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
(7). Connect a TS-352/U multimeter or equivalent in the 2-5 amp range, across jacks N of breakout
box and open switch N.
(8). Energize the system in the BIAS mode and observe the multimeter. If the solenoid switch is
adjusted properly, the current should be 0.05 amp. If the solenoid draws 1.5 amps, the switch
must be moved closer to the solenoid. Should the solenoid chatter and draw high current, then
the switch must be moved away from the solenoid.
(9) Switch from BIAS to SELF-TEST several times to insure proper operation.
Adjust the caging cam switch as follows (fig. 2-80).
(10). With the caging link adjusted, set up the system for operation and energize the caging
mechanism by placing the MODE SELECT SWITCH in the BIAS mode. Manually hold the
clutch in the engaged position so that it is not released while adjusting the caging arm switch.
(11). Loosen the caging cam switch mounting screws. Adjust the caging cam switch so that the
actuator solder follows the depression on the cam and is actuated when the caging arm guide pin
is 1/32 inch from the top of its guide slot (fig. 2-80).
.
2-67

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