3-6. INITIAL INSPECTION
M118A2/M118A3 ELBOW TELESCOPE
Item To Be Inspected
Inspect M118A2/M118A3 elbow telescope (1) for completeness and
secureness of parts.
Check that print on identification plate (2) is legible and clearly
Check that mounting surface (3) is free of burrs and
Inspect eyeshield (4) for security of attachment and damage such
Inspect valve core and air valve cap (5) for damage such as bends
VALVE CORE AND
AIR VALVE CAP
or breaks and ability to hold pressure.
Inspect optics (6) for dirt, fungus, scratches, chips or condensation,
which may obstruct view through eyepiece.
Inspect view through telescope to determine if interfering fractures
exist on window, lens, prisms, or reticle; chipped, scratched, or
pitted optics that interfere with field of view must be replaced.
Check that level (8) is free of cracks and breaks and that
graduations are legible. Check that mirror (9) on level assembly
is not scratched.
Check that knobs on wormshaft assembly (10) move freely without
Check that variable resistor knob (11) moves freely and that light
changes from dim to bright and bright to dim.