AZIMUTH BORESIGHT KNOB ASSEMBLY
TOOLS: 4 oz. ball peen hammer
3/32" pin drive punch
Instrument grease (item 1, App. A)
Sealing compound (item 4, App. A)
REFERENCES: JPG 4lC for: Using sealing compound
EQUIPMENT CONDITION: Infinity sight on work bench
Elevation boresight knob and azimuth boresight knob
are not the same. Azimuth boresight knob has left
Using scraper, remove old sealing compound from insert (1) and housing (2) (JPG).
Put grease on packing (3) and install packing (3) on insert (1) (JPG).
Put a small amount of sealing compound on end of insert (1).
Using fingers, put insert (1) into housing (2).
Using hammer, install pin (4) into housing (2).
using fingers, turn screw (5) counterclockwise into knob (6).
Using fingers, put key (7) into slot on insert (1).
Put shaft of screw (5) into hole of insert (1).
Push shaft (5) through insert (1) making sure key (7) is fully installed in groove on
shaft (5). Push until insert (1) is seated inside of knob (6).
Using punch and hammer, install pin (8) in knob (6).
Install receptacle assembly (para 4-11).
Do checkout procedure (Vol I, para 2-2).
END OF TASK