TM 5-6675-329-13 & P
Table 5-1. Troubleshooting
TEST OR INSPECTION
Blurred image is seen through the eyepiece.
None (lens internal to the telescope housing is broken).
Automatic level NA2-80 must be replaced.
Automatic Level NA2-80 is wobbly on the Tripod GST-40 base.
Check Tripod GST-40 Central Fixing Screw and Central
Fixing Screw Retainer.
Replace defective part(s).
Focus Drive does not continuously drive focusing lens.
Check Focus Drive Assembly (item 1, Figure 5-3) for
Replace defective component.
Horizontal Drive does not drive Automatic Level NA2.
Check Horizontal Drive Components (Figure 5-4) for
Replace defective component(s).
Section III: MAINTENANCE PROCEDURES
Maintenance procedures in this section include removal, cleaning, inspection and installation of the eyepiece,
Objective Housing, Focus Drive, Horizontal Drive Components and Tripod GST-40 assemblies. All maintenance
procedures can be performed by one maintenance technician.
EYEPIECE ASSEMBLY MAINTENANCE INSTRUCTIONS (Figure 5-1)
This task covers: