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Figure 2-90. Theodolite removal.
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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 2-91. Time Totalizing Meter Removal
TM 5-6675-250-34
Table 2-1. Troubleshooting - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
c. Raise the existing theodolite sufficiently to disconnect the electrical connector from J3 between the theodolite and GRU
housing.
d. Complete removal of the theodolite by raising clear of the GRU housing.
e. Place the new theodolite over the GRU housing and connect the electrical connector to terminal J3.
CAUTION
Ensure that electrical wire slack is placed adjacent to the inner circular surface of the mounting plate prior to lowering the
theodolite.
f. Lower the theodolite to position in place on the mounting plate. Position the white strip on the theodolite base
so that it is adjacent to the yellow stripe on the theodolite mounting plate.
g. Secure the theodolite by installing three socket head screws (fig. 2-90). Using a torque wrench, progressively
tighten the screws in 10-inch pounds pound increments to 30-inch pounds torque.
If the system operates correctly with the new theodolite, report the bad theodolite to the next higher
level of maintenance.
17. TIME TOTALIZING METER INOPERATIVE.
Step 1. Check for a defective time totalizing meter.
a. Operate the GRU and compare elapsed time on the time totalizing meter with a time piece.
b. If the time totalizing meter elapsed is time is incorrect, the meter is bad.
Redate a bad time totalizing meter.
(1). Remove ten screws and remove the main connector housing cover (fig. 2-91 ) containing the time
totalizing meter from the housing. The cover shall remain connected to the housing by the leads
to terminal 1A1J1.
(2). Unsolder and remove the wires from the time totalizing meter. Cut the lacing cord holding the
lead wires to the meter body.
(3). Remove the two self locking nuts (fig. 2-91 and two screws securing the time totalizing meter to
the housing cover.
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