Headlamp Aiming - Blizzard 680LT Installation Instructions & Owner's Manual

Fully tighten headlamp fasteners once correct visual
aim is achieved.
1. Place 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.
2. The vehicle should be equipped for normal
operation. The snowplow blade should be in place
and in raised position. Below are steps listed
by the Society of Automotive Engineers (SAE)
pertinent to headlamp aiming in specifi cation
#SAE J599d.
3. Prepare vehicle for headlamp aim or inspection.
Before checking headlamp aim, the inspector will:
a. Remove ice or mud from under fenders.
b. Set tire infl ation pressures to the values
specifi ed on vehicle information label.
c. Check springs for sag or broken leaves.
d. See that there is no load in the vehicle other
than the driver and ballast as specifi ed in the
Undercarriage Selection Guide.
Vertical Centerline Ahead of DS
Snowplow Headlamp
Screen Located 25 Feet from
Snowplow Headlamps
Lit. No. B64118, Rev. 03

HEADLAMP AIMING

e. Check functioning of any automatic vehicle
f.
g. Check for bulb burnout and proper beam
h. Stabilize suspension by rocking vehicle
4. 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).
5. 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.)
Align with
Vehicle
Centerline
High Intensity Zones
of Snowplow Headlamps on Low Beam
33
leveling systems and specifi c manufacturer's
instructions pertaining to vehicle preparation
for headlamp aiming.
Clean lenses.
switching.
sideways.
Vertical Centerline
Ahead of PS Snowplow Headlamp
Horizontal Centerline
of Snowplow Headlamps
March 1, 2009