TM 5-6675-329-13 & P
Section V: TROUBLESHOOTING
Troubleshooting of the NA2-80 level by Organizational maintenance personnel is limited to inspection of the
telescope (including eyepiece and focusing assemblies), leveling screw assemblies, base plate and the tripod. The
troubleshooting procedures in Table 4-3 provide malfunction, test or inspection and corrective action information for
these assemblies. Any malfunction which is observed and is beyond the repair scope of Organizational maintenance
personnel shall be reported to Direct Support maintenance.
Table 4-3. Troubleshooting
TEST OR INSPECTION
Tripod is unstable.
Check tripod hinge elements (items 18, 19 and 22 through
25 of Repair Parts List, Figure 2) for proper adjustment and for wear or damage.
Tighten hinge elements as required. Re place any item inspected that is found to
be damaged or excessively worn.
Telescope does not focus at all settings between 5.3 ft. (1.6m) and at least 250 ft. (76.2 m).
Check telescope housing lens, eyepiece assembly and focusing knob for damage.
Replace damaged telescope housing lens or damaged eyepiece assembly. (See Repair
Parts List, Figure 3. If Focus Drive Assembly knobs are not damaged, but operating
them has no effect on focusing, Automatic Level NA2 must be replaced.
Operation of a footscrew does not raise (or lower) Automatic Level NA2.
Visually check footscrews for damage.
Replace Automatic Level NA2.
Automatic Level NA2 cannot be securely seated on a functioning Tripod GST-40 assembly.
Visually check Automatic Level NA2 Baseplate (1, Figure 1-2).
Replace Automatic Level NA2 if baseplate is warped or internal threads are stripped