American Aimers VA 25 Optical Headlight Aimer - Manual (Page 4)

SETTING THE BEAM PATTERN
(Aim Screen and Examples of Beam Patterns)
Observe the low beam pattern on the internal aim screen (Fig. 10).
Proper aim is achieved by adjusting the headlamp to locate the
beam pattern on the internal aim screen per the following illustra-
tions (Fig 10, 11, 12, 13 and 14).
This can be assisted for more accurate aim by using the light
intensity meter while adjusting the headlamp for maximum
deflection of the meter (Fig. 9 / B). Low beam only.
If light intensity is to low to cause movement of the meter, gain
can be increased by removing the top of the aim head and
locating the small blue potentiometer behind the aim screen.
Turning this pot will increase or decrease meter movement.
Note: This meter is designed for aim assist only, not a candela
reading.
VEHICLES WITH 4 HEADLAMP SYSTEMS
When high beams are not located in the same assemblies as low
beams (older 4 headlamp system) high beam test must be done
using the method per Fig. 11.
INTERNAL SCREEN: VOR BEAM PATTERN INTERNAL SCREEN: VOL BEAM PATTERN
This manual should be read in its entirety before operating the VA25. If you have questions, please
contact American Aimers Technical Support at 1-877-343-7703.
INTERNAL SCREEN: LOW BEAM PATTERN INTERNAL SCREEN: HIGH BEAM PATTERN
VO lamps are set with the upper beam cutof fs, not the
highest intensity zone. VOR use the right side of the
beam pattern (Fig. 12). VOL use the left side of the beam
pattern (Fig.13).
NOTE:
The vertical aim scale is provided with graduated incre -
ments in steps of 25mm (1 inch) at 25 feet, both above
and below the horizontal line.
The horizontal aim scale is provided with graduated
increments in steps of 50mm (2 inches) at 25 feet, both
left and right of the vertical line.
Cutoff
INTERNAL SCREEN: FOG LAMP BEAM PATTERN
Cutoff
Highest Intensity Zone
Highest Intensity Zone
Page 4
Light Intensity
20
40
60
80 100
B
A