Section IV. OPERATOR'S MAINTENANCE
31. Lamp Replacement
32. Battery Replacement
Refer to figure 28 and replace the lamps.
Refer to figure 28 and replace the batteries.
Section V. TROUBLESHOOTING
Figure 28. Lamp and battery, removal and installation.
34. Theodolite Will Not Seat Properly on Tripod
33. General
This section provides information useful in
Head
diagnosing and correcting unsatisfactory operation or
Probable cause
Probable remedy
failure of the theodolite and its components. Each
Bridge screw improperly
Restart the bridge screw
trouble symptom stated is followed by a list of probable
started.
causes of the trouble.
The possible remedy
Star plate defective .............Replace star plate (par.
recommended is described opposite the probable cause.
Any trouble beyond the scope of organizational
Tripod head defective .........Replace head (par. 58).
maintenance will be reported to field maintenance, 3d
echelon.
35. Theodolite Will Not Stay on Line
Probable cause
Probable remedy
Theodolite out of level.........Level the theodolite (par.
Horizontal collimation
Adjust horizontal collima-
or collimation level out
tion or collimation level
of adjustment.
AGO 5078A 38
