TM 9-1240-401-34&P
5-6. INITIAL INSPECTION
Procedures
Item To Be Inspected
Item No.
Inspect M117/M117A2 panoramic telescope (1) for completeness
1
M117/M117A2 PANORAMIC
and secureness of parts; must be complete and secure.
TELESCOPE
Inspect identification plate (2) for legibility; must be legible
IDENTIFICATION PLATE
2
and clearly defined.
Inspect mounting surfaces (3) for burrs and corrosion; must
MOUNTING SURFACES
3
be free of burrs and corrosion.
Inspect eyeshield (4) for security of attachment and damage
4
EYESHIELD
such as deterioration, cuts, or tears; must be secure, without tears
or deterioration.
Inspect purging valve stem and air valve cap (3) for damage such
5
PURGING VALVE STEM AND
as bends or breaks and ability to hold pressure; must not be bent
AIR VALVE CAP
or broken, and must hold pressure.
Inspect window (6) for dirt, fungus, or condensation which may
6
WINDOW
obstruct view; must be clean and free of moisture.
Inspect elevation knob (7) for smooth operation without binding
7
ELEVATION KNOB
or jerky movement. Operates smoothly without binding.
Inspect reset counter knob (8) for smooth operation without binding
RESET COUNTER KNOB
8
or jerky movement. Operates smoothly without binding.
Inspect elbow assembly (9) for smooth travel through full range of
ELBOW ASSEMBLY
9
movement. Operates smoothly without binding.
Inspect optical quality by looking through eyepiece.
View should be clear with no objectionable signs of dirt,
lint, cracked lenses, or condensed moisture.
Inspect azimuth knob (10) for smooth operation through full range
AZIMUTH KNOB
10
in either direction with no binding or jerky motion.
Inspect gunner's aid knob (11) to be sure that it does not bind.
GUNNER'S AID KNOB
11
