The inspection limits are a range of 4” at 25’. The illustrations below show the range allowed for vertical and horizontal inspection.
The left side of the “high intensity zone” must fall within the shaded
area for proper low beam horizontal adjustment.
The top of the “high intensity zone” must fall within the shaded area
for proper low beam vertical adjustment.
Nominal Vertical Aim Line
100 mm
100 mm
100
mm
100
mm
4"
4"
4"
0"
4"
8"
Inspection
upper limit
Inspection
lower limit
4"
0"
4"
4"
4"
Inspection
left limit
Inspection
right limit
4"
0"
4"
4"
4"
Low Beam Headlamps are aimed so that the top edge of the
high-intensity zone is at the
NOMINAL VERTICAL AIM
line,
and the left edge of the high-intensity zone is at the vertical
center line of the screen.
NOTE: Headlights centered more than 36” from the ground require beam slope compensation. See page 12 for details.
AIMING LOW BEAM HEADLAMPS
INSPECTION LIMITS FOR LOW BEAM HEADLIGHTS
There are many different beam patterns used in domestic vehicles. When checking headlights with complicated beam
patterns, you must locate the part of the high intensity zone that shines farthest down the road (is highest on the
screen) . This generally appears as a “hump” in the beam pattern. Once this is located, you simply set the left edge of
the “hump” to align with the center cross hair on the screen. You set the top of the “hump” with the horizontal cross hair.
The bottom of the “hump” typically blends into the lower portion of the beam pattern and is not considered when
adjusting the headlight.
Aiming Procedures
DIFFERENT LOW BEAM PATTERNS
Page 8 - Aiming Procedures
Canbuilt Mfg.
Perfect Night Vision.....
Summary of Contents for OPT-5405
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Page 20: ...NOTES...