PS Magazine - TB 43-PS-683

PS, The Preventative Maintenance Monthly

ISSUE 683

OCTOBER 2009
PS Magazine - TB 43-PS-683 - Page 11 of 33
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PS 683
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PS 683
OCT 09
OCT 09
8
You’re ready now to draw
two vertical lines through
the two horizontal lines.
The vertical lines must be
directly in front of each
headlight. That can be done
accurately by dropping a
plumb line (tie a heavy nut on
the end of a piece of string)
from the center of the
headlight to the ground.
9
Measure the distance from the center of
the headlight to the ground. Then measure
the distance from each plumb line mark
to the center of the “T” you started with.
Then mark off that same distance on the
wall and draw a vertical line straight up.
Do it for each headlight. Call these lines B
and C, respectively.
10
Turn on the headlights
and select LOw beam.
Cover one headlight while
you’re aiming the other.
Aim the headlight so
the beam centers at the
intersecting horizontal
and vertical lines A and
B, or A and C, depending
on which headlight you’re
adjusting.
11
After
you’ve
adjusted each
headlight
separately,
check ‘em
together just
to make sure
they center up
and down on
line A.
These general
guidelines ought
to aim your truck’s
headlights in the
right direction.
it gives you the latest info on your
truck’s headlight adjustments since
the TM procedures aren’t correct.
You can view the MAM online…
mam/tacom_wn/08/mam08-050a.html
And that’s
all, folks.
Remember,
making this
adjustment
on all heavy
tactical
trucks
could make
everybody’s
headlight
“blindness”
go away. So
doing it is
worth the
effort.
7
Now line X is the same
distance from the ground as
the center of the headlights.
draw a second line 4 inches
below line X and parallel to
it. Call the second line A.
But it won’t hurt to
eyeball your truck’s
maintenance manual
to get specifics on
adjusting head-
lights on your
truck.
but HEMTT,
PLS, and
HET drivers
should heed
TACOM MAM
08-050.
adjust the left (Driver side)
light so that the area of
high intensity is located with
its left edge on left line B
and its upper edge is on the
horizontal line. Adjust the
right (passenger side) light
so that the area of high
intensity is centered on right
line C and the upper edge is
on the horizOntal Line.
A
X
B
C
683.18-19.indd
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8/24/09
3:45:57 PM
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