Honda 1997 Prelude Owner's Manual page 176

HORIZONTAL ANGLE GAUGE
If you usually pull a trailer, load it as
you would normally and attach it to
the car. Push down on the front and
rear bumpers several times to make
sure the car is sitting normally.
3. Open the hood.
4. Check the horizontal angle gauge.
The line on the adjustment screw
indicator should line up with the
"0" mark on the gauge.
VERTICAL ANGLE GAUGE
5. Check the vertical angle gauge.
The bubble should be centered
underneath the longest scribe
mark on the gauge.
HORIZONTAL ADJUSTMENT
BUBBLE
6. If either indicator is not aligned
with its "0" mark as described, an
adjustment can be made using a
Phillips-head screwdriver to
realign it with the "0" mark. Please
refer to the illustrations.
Lights
CONTINUED
Maintenance