Lit. No. 78532, Rev. 02
25
March 15, 2019
MAINTENANCE
AIMING HEADLAMP BEAMS
Tighten headlamp fasteners to 22 ft-lb, or 30 N·m,
once correct visual aim is achieved.
Park the vehicle on a level surface 25 feet in front of
a matte-white screen, such as a garage door. The
screen should be perpendicular both to the ground
and to the vehicle centerline.
The vehicle should be equipped for normal operation.
The snowplow blade should be in place and in raised
position.
See that there is no load in the vehicle other than the
driver and ballast as speci
fi
ed in the Quick Match
selection system.
Below are the steps listed by the Society of Automotive
Engineers (SAE) pertinent to headlamp aiming in
speci
fi
cation #SAE J599d.
1. Prepare the vehicle for headlamp aim or
inspection. Before checking beam aim, the
inspector will:
a. Remove ice or mud from under fenders.
b. Set tire in
fl
ation pressures to the values
speci
fi
ed on vehicle information label.
c. Check springs for sag or broken leaves.
d. Check the functioning of any automatic vehicle
leveling systems and speci
fi
c manufacturer's
instructions pertaining to vehicle preparation
for headlamp aiming.
e. Clean the headlamp lenses.
f. Check for bulb burnout and proper beam
switching.
g. Stabilize the vehicle suspension by rocking
the vehicle sideways.
2. Mark (or tape) the vertical centerline of the
snowplow headlamps and the vertical centerline
of the vehicle on the screen. Mark the horizontal
centerline of the snowplow headlamps on the
screen (distance from ground to snowplow
headlamp centers).
3. Align the top edge of the high-intensity zone of
the snowplow lower beam below the horizontal
centerline and the left edge of the high-intensity
zone on the vertical centerline for each snowplow
headlamp. (Refer to diagram below.)
Vertical centerline of
DS snowplow headlamp
Align with vehicle
centerline
Vertical centerline of
PS snowplow headlamp
Screen located 25 feet
from snowplow headlamps
Horizontal centerline
of snowplow headlamps
High-intensity zones of snowplow
headlamps on low beam
Содержание DEFENDER Compact Plow
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