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TM 9-1240-322-34&P
ELEVATION BORESIGHT KNOB ASSEMBLY
TOOLS: 4 oz. ball peen hammer
3/32" pin drive punch
Scraper
SUPPLIES:
Instrument grease (item 1, App. A)
Sealing compound (item 4, App. A)
PERSONNEL: One
REFERENCES: JPG 41C for: Using sealing compound
Using lubricant
EQUIPMENT CONDITION: Infinity sight on work bench
FRAME 1
Procedure
Step
NOTE
The elevation boresight knob and azimuth boresight
knob are not threaded the same. The azimuth boresight
knob has left hand threads.
Using scraper, remove old sealing compound from insert (1) and housing (2) (JPG).
1.
2.
Put grease on packing (3) and install packing (3) on insert (1) (JPG).
3.
Put a small amount of sealing compound on end of insert (1).
4.
Using fingers, put insert (1) into housing (2).
5.
Using hammer, install pin (4) into housing (2).
6.
Using fingers. turn screw (5) into knob (6).
7.
Using fingers, put key (7) in slot on insert (1).
8.
Put shaft of screw (5) into hole of insert (1).
9.
Push shaft (5) through insert (1) making sure key (7) is fully installed in groove of shaft
(5). Push until insert (1) is seated inside of knob (6).
Vol II
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