TM-9-1240-401-34-P
TELESCOPE MOUNT M146: M118A2 AND M118A3; TELESCOPE MOUNT M145: M145A1; PANORAMIC TELESCOPE: M117 AND M117A2; FIRE CONTROL QUADRANT: M15; PERISCOPE: M42
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
JULY 1993
TM-9-1240-401-34-P - Page 49 of 590
TM 9-1240-401-34&P
42
Install new self-locking nut (55) on deflection shoul-
der screw (56),
43 Apply grease (item 6, appx B) to machined surface
of elevation bracket (79).
44 Secure plate spacer (73) to mount with three new
Iockwashers (75) and three cap screws (74). Install
original and new shims as necessary between
plate spacer (73) and mount to maintain a maxi-
mum clearance of 0.002 inch (0.005mm).
45 Install setscrew (51) in base plate (52).
46 Install setscrew (53) in mount.
47 Place knob (17) and shaft collar(19) on tapered
pin (20) and aline scribe marks.
48 Aline the holes on knob (17) with holes in shaft col-
lar (19) and tapered pin (20).
49 Support knob(17) with V-block and install tapered
pin (18).
50 Install knob (17), shaft collar (19), tapered pin (20),
and tapered pin (18) as a unit in elevation slide
(21).
51 Install chain assembly (12) and secure with two
new Iockwashers (14) and two machine screws
(13).
52 Install insert (16) and setscrew(15) in elevation
slide (21).
53 Install spring clip (83) and secure with machine
screw (84).
54 Install cable assembly (80) and secure with two
new Iockwashers (82) and two cap screws (81).
55 Secure three clamps (78) to elevation bracket (79)
with three new Iockwashers (77) and three ma-
chine screws (76).
2-15
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