Jeep Cherokee 2000 Service Manual - Headlamp Alignment
HEADLAMP ALIGNMENT
TABLE OF CONTENTS
page
page
SERVICE PROCEDURES
HEADLAMP ALIGNMENT . . . . . . . . . . . . . . . . . . . . 6
LAMP ALIGNMENT SCREEN PREPARATION . . . . . 6
VEHICLE PREPARATION FOR HEADLAMP
ALIGNMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
HEADLAMP ADJUSTMENT . . . . . . . . . . . . . . . . . . 6
FOG LAMP ADJUSTMENT . . . . . . . . . . . . . . . . . . . 8
SPECIAL TOOLS
HEADLAMP ALIGNMENT . . . . . . . . . . . . . . . . . . . . 9
SERVICE PROCEDURES
HEADLAMP ALIGNMENT
Headlamps can be aligned using the screen method
provided in this section. Alignment Tool C-4466-A or
equivalent can also be used. Refer to instructions
provided with the tool for proper procedures.
LAMP ALIGNMENT SCREEN PREPARATION
(1) Position vehicle on a level surface perpendicu-
lar to a flat wall 7.62 meters (25 ft) away from front
of headlamp lens (Fig. 1).
(2) If necessary, tape a line on the floor 7.62
meters (25 ft) away from and parallel to the wall.
(3) Measure from the floor up 1.27 meters (5 ft)
and tape a line on the wall at the centerline of the
vehicle. Sight along the centerline of the vehicle
(from rear of vehicle forward) to verify accuracy of
the line placement.
(4) Rock vehicle side-to-side three times to allow
suspension to stabilize.
(5) Jounce front suspension three times by pushing
downward on front bumper and releasing.
(6) Measure the distance from the center of head-
lamp lens to the floor. Transfer measurement to the
alignment screen (with tape). Use this line for
up/down adjustment reference.
(7) Measure distance from the centerline of the
vehicle to the center of each headlamp being aligned.
Transfer measurements to screen (with tape) to each
side of vehicle centerline. Use these lines for left/
right adjustment reference.
VEHICLE PREPARATION FOR HEADLAMP
ALIGNMENT
(1) Verify headlamp dimmer switch and high beam
indicator operation.
(2) Correct defective components that could hinder
proper headlamp alignment.
(3) Verify proper tire inflation.
(4) Clean headlamp lenses.
(5) Verify that luggage area is not heavily loaded.
(6) Fuel tank should be FULL. Add 2.94 kg (6.5
lbs.) of weight over the fuel tank for each estimated
gallon of missing fuel.
HEADLAMP ADJUSTMENT
Headlamps
can
be
aligned
using
the
screen
method. The Headlamp Alignment Tool C-4466-A or
equivalent can also be used. Refer to instructions
provided with the tool for proper procedures.
A properly aimed low beam will project the top
edge of the beam intensity pattern on the screen
from 25 mm (1 in.) above to 75 mm (3 in.) below
headlamp centerline. The side-to-side left edge of the
beam intensity pattern should be from 50 mm (2 in.)
left to 50 mm (2 in.) right of headlamp centerline
(Fig. 2).
(1) Remove screws and both headlamp bezels.
(2) Clean front of the headlamps.
(3) Place headlamps on LOW beam.
(4) Cover front of the headlamp that is not being
adjusted.
(5) Turn vertical adjustment screw (Fig. 3) until
the headlamp beam pattern on screen/wall is similar
to the pattern depicted in the alignment screen fig-
ure.
NOTE: When using a headlamp aiming screen,
adjust the headlamps so that:
•
The left edge of the beam intensity pattern is
positioned within 50 mm (2 in.) left to 50 mm (2 in.)
right of the vertical centerline (Fig. 2).
•
The top edge of the beam intensity pattern is
positioned within 25 mm (1 in.) above or 75 mm (3
in.) below the headlamp horizontal centerline (Fig.
2).
(6) Cover front of the headlamp and adjust the
other headlamp beam as instructed below.
(7) Rotate the adjustment screws until the beam
intensity pattern on the aiming screen/wall is aligned
within the headlamp the alignment screen target
(Fig. 2).
8L - 6
LAMPS
XJ