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 48 of 590
2-14
TM 9-1240-401-34&P
2-11. M146 TELESCOPE MOUNT MAINTENANCE INSTRUCTIONS - continued
c. Assembl
y- continued
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Apply grease (item 7, appx B) to new preformed
packing (72) and install on elevation bracket (79).
Apply grease (item 7, appx B) to new preformed
packing (71) and install on threaded ring (54).
Install threaded ring (54) in mount.
Install two headless straight pins (64) in ratchet
shield (63).
Install ratchet shield (63), spring washer (62), dial
ratchet (61 ), keyed ratchet (60), and concave
washer (59) on knob (57). .
Install flat washer (58) in base plate (52).
Lubricate disk (69) with grease (item 6, appx B)
and install on knob (57).
Install scale dial (68) and spring washer (67) on
knob (57).
Install round nut (66) on knob (57). Tighten round
nut (66) sufficiently to provide a snug fit of the
scale dial (68) and knob
(57).
Install setscrew (70) to lock round nut (66).
Install concave washer (65).
Position base plate (52) on elevation bracket (79).
Position assembled knob (57) as a unit in elevation
bracket (79).
Apply grease (item 6, appx B) to worm portion of
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