TM 9-1240-401-34&P
4-24. M145/M145A1 TELESCOPE MOUNT FINAL INSPECTION AND ADJUSTMENT
- continued
g. CANT ADJUSTMENT
Install M117/M117A2 panoramic telescope (1) on
1
M15/M145A1 telescope mount (2) (ref.
TM 9-2350-311-10 or TM 9-2350-314-10).
Rotate M117/M117A2 panoramic telescope, using
2
azimuth knob (3), until azimuth counter (4) indi-
cates 4800 mile.
Reset M117/M117A2 panoramic telescope (1) re-
3
set counter (5) to 3200 mils.
Using M1A1 gunner's quadrant mounted on fixture
4
adapter mounting surface (6), adjust fixture adapter
for 88.9 roils cant.
Level M117/M117A2 panoramic telescope (1) us-
5
ing pitch knob (7), cress-level knob (8), and eleva-
tion handwheel (9) on cross-leveling fixture (10).
6
Set elevation counter (11) to 300 roils.
7
Level the M117/M117A2 panoramic telescope (1)
using pitch knob (7), cross-level knob (8), and ele-
vation handwheel (9) on cross-leveling fixture (10).
While looking through M117/M117A2 panoramic
8
telescope (1) eyepiece (12), rotate M117/M117A2
panoramic telescope (1) using azimuth knob (3).
Aline reticle of M117/M117A2 panoramic telescope
9
(1) with a plumbline at 90 to the fixture assembly.
10
Repeat steps 2 through 9 with fixture cant in the
opposite direction 88.9 mils.
Return cross-leveling fixture (10), M145/M145A1
11
telescope mount (2), and M117/M117A2 panoramic
telescope (1) to zero and level. Reset all counters.
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