TM 55-4920-390-13&P
d) Carefully remove terminal clip from "outboard" end of flash tube. Leave clip secured to its wire.
e) Insert thick-bladed screwdriver into slot of tube clamp and pry open only enough to withdraw the flash tube out
the front end. Avoid opening so far that the clamp is "sprung", for it will not grip the new tube securely. (See Fig.
5-1.)
f) Carefully re-apply clip to front terminal of flash tube.
g) Insert the new flash tube so its base is flush with the rear of clamp. Avoid pinching fine trigger wire in clamp.
NOTE
If clamp is inadvertently pried open so far it no longer grips the Flash Tube, the clamp can be
squeezed together to restore grip.
h) Plug the Strobex into a suitable 28 VDC source.
i) Operate the unit by setting "Multi-turn Dial" to about 400, vernier control somewhat CW, and depress trigger.
NOTE
High voltages are present in the lamp unit. Use an insulated screwdriver (tape the shank) and use
care to avoid shorting lamp to case.
i) Using insulated screwdriver (see note) thru rear of lamp, focus lamp by adjusting the three nylon screws holding
the clamp. This allows motion of the light source both radially and in-and-out. Direct the light on a wall 10 to 30
feet distant and adjust for tightest spot possible. (1 to 2 feet in diameter, depending on distance.) (See Fig. 5-2.)
k) Replace plastic front and rear cover. This completes replacement.
5-3