PS Magazine - MARCH 1986
PS, The Preventative Maintenance Monthly
ISSUE 400
MARCH 1986
Seeing's believing when it comes
to your night vision
PM.
Do a good
job and your goggLes won't Leave you
in the dark when you need them
most.
Use a light touch when you fit the
goggles to your eyes. The Lever clamp
Lets you move eyepieces sideways.
Remember to Loosen the cLamp be-
fore you try to sLide an eyepiece±
²ikewise, don't overtighten the clamp
when the eyepiece is where you want
it. That strips threads±
The same cautions go for the clamp
knobs. They hoLd the eyepieces in the
viewinG position you want. Keep an
eye on the seLf³Locking nut inside the
clamp knob, too± It can come Loose
and Leave you cLamp³Less.
54
Make sure the goggLes' headstrap
is in good shape and snugged up so
you're comfortab´e with where it's
holding the goggLes.
When you put the goggLes away in
their carrying case, Loosen the Lever
1
cLamp and clamp knobs. µf they're
stiLL Locked, cLosing the Lid can crack
the Face mask. You shouLd aLso be
sure the face mask fits fLush with the
cutout insidE the case before you
close the Lid.
mAR 86
Watch battery poLarity. The BA³
±²³7
is diFferent from most batteries.
¶he raised en· is negative(¸)± The
FLat, positive
(+)
en· goes into the
compartment first.
Turn oF¹ the Oºº»ON¸IR rotary
switch when the goggLes are i·Le.
With the switch on, battery power is
drained, especially in µR.
mAR 86
Take out the battery before put-
ting the goggLes away.
Be sure aLL four Lens c¼ps are on the
eyepiece and objective lenses to pro-
tect them from scratches.
µf a cap's missing, use cLeaning
tissues and a rubber band to cover
the Lens untiL you can get another
cap. Without a cap or tissue cover,
the image intensifier tube can be
z¼pped by a bright light.
55
j.
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