TM 11-5855-261-23
(11) Route the switch leads on either side of the
shield end of the housing (fig. 4-6). Rotate the
backup cap screw cavity on the bottom of the
electronic assembly to line up the allen head cap
housing. Look inside the switch cavity and ensure
screw hole with the hole in the mounting foot.
that the leads are not crossed.
CAUTION
(12) Carefully insert both backup cap screw assem-
Do not apply pressure on the diode carrier end
blies, ensuring free movement of the caps and
of the laser diode assembly because it can be
springs. Tighten the screws with a standard 1/4-inch
crushed.
screwdriver.
(4) Apply gentle pressure to the electronic assembly
(13) Inspect the switch gasket (fig. 4-3) and clean or
to get the O-ring past the opening. Assure the laser
replace if required.
diode assembly flange clears the edge of the
(14) Insert the gasket in place on the housing
housing and insure the flange is fully seated before
around the switch cavity.
proceeding.
(15) Attach the switch leads to their respective
(5) Screw in and tighten the allen head cap screw
switch terminals and secure the leads with screws.
to retain the electronic assembly. Carefully pull the
(16) Place one switch lead on each side of the laser
switch leads out through the switch cavity.
diode assembly carrier section.
(6) Clean both sides of the lens assembly with lens
(17) Direct a stream of nitrogen into the switch
paper. Lens paper may be dampened with clean
cavity while pressing the switch plate into place.
water if required. Insert the lens assembly (fig.
Be sure the gasket is not pinched.
4-5) with the unthreaded portion first.
(18) Replace the four screws and flat washers and
(7) Screw in the lens assembly using a special span-
tighten the switch assembly to the housing firmly.
ner wrench (table B-1, item 1).
(19) Screw in the scattershield.
CAUTION
(8) Insert one of the adjusters into an adjuster
To avoid cross-threading, insert and turn the
cavity (fig. 4-3) and screw it in hand tight.
scattershield counterclockwise a half turn,
(9) Using an 8-inch adjustable wrench, tighten the
then screw it in by turning clockwise.
adjuster in the cavity.
(10) Repeat steps (8) and (9) with the other adjuster
(20) Replace batteries with nipple end (-) out
(para 4-7 b.)
and cavity
4-9
