TM 9-1240-401-34&P
5-13. M117/M117A2 PANORAMIC TELESCOPE MAINTENANCE INSTRUCTIONS
- continued
c. Assembly - continued
15
If removed, install two headless straight pins (20).
Install cover (19) and secure with six new lock-
washers (17), three machine screws (15), and
three machine screws (16). Install chain of cap as-
sembly (18) under one machine screw (15). Install
cap assembly (18).
16
Apply grease (item 7, appx B) to seal (14) and in-
stall on cover (19).
17
Install three new shims (13) and gunner's aid knob
(12) and secure with headless straight pin (11).
Apply grease (item 7, appx B) to new gasket (9)
18
and install on cover (19) (M117A2 only).
19
ApplY grease (item 7, appx B) to new preformed
packing (10) and install in cap (8) of M117A2 pano-
ramic telescope or plate (6) of M117 panoramic
telescope.
20
Apply adhesive to threads of three machine screws
(7). Install cap (8) and secure with three machine
screws (7) (M117A2 only).
21
Apply adhesive to cap screw (3). Install plate (6)
and secure with flat washer (5), new Iockwasher
(4), and cap screw (3).
22
Install azimuth knob (1) on shaft (40).
23
Support azimuth knob (1) with a V-block and se-
cure with headless straight pin (2).
5-14
