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 76 of 590
TM 9-1240-401-34&P
3-15. WORMSHAFT ASSEMBLY MAINTENANCE INSTRUCTIONS - continued
1
2
3
4
5
6
7
8
9
10
11
12
Apply grease (item 7, appx B) to new preformed
packings (19 and 20) and install in grooves on
worm shaft (9).
Apply grease (item 6, appx B) to ends of worm
shaft (9) adjacent to preformed packings (19 and
20). Install worm shaft (9) in worm shaft housing
(16).
Apply grease (item 7, appx B) to new preformed
packing (18) and install on bushing (1 7).
Install bushing (17) in worm shaft housing (1 6).
Apply sealing compound to setscrew hole in worm
shaft housing (16). Install setscrew (15).
Aline reference mark on knob (13) and worm shaft
(9).
Place knob (13) on end of worm shaft (9). Support
knob (13) with a V-block and drive in tapered pin
(14).
Apply grease (item 6, appx B) to spring washer
(11) and two ratchets (12),
Install two ratchets (12), spring washer (11), and
knob (8) on worm shaft (9).
Aline reference mark on knob (8) and worm shaft
(9).
Support knob (8) with a V-block and drive in ta-
pered pin (10); stake tapered pins (10 and 14).
Apply adhesive to one side of new preformed pack-
ing (21) and into groove in worm shaft housing
(16). Install preformed packing in worm shaft hous-
ing.
3-10
d. Assembly
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