Gunson TRAKRITE Instrucciones De Uso página 8

Instructions for use:
Camber Angle – Wheels on
For this check you will need to ensure the
vehicle is parked on a flat surface, all of the
tyres are inflated to the correct pressure,
the rear wheels are made secure and wheel
trims removed.
1. Use a straight bar vertical across the flats
of the wheel making sure nothing impedes
the flat surface (there may be enough flat
surface to attach the gauge directly to the
wheel).
2. Place the camber gauge in the centre
of the bar and read the – Neg. or + Pos.
angle.
3. Record this angle and repeat the
procedure on the opposite wheel.
N.B. If the gauge indicates an unusually large
angle, it may be necessary to check again
with a full fuel tank and with a normal load.
Camber Angle – Wheels Off
Using this method you must ensure that the car body is equal distance off of the ground
and the wishbone is jacked up to replicate the running position.
Also make sure the wheels are facing directly ahead.
Using the horizontal level, connect the gauge to the brake discs and read the angle.
Repeat for the other hub.
Gunson Trakrite Camber Gauge 4
Caster Angle
The caster angle is the angle between the
vertical and the inclination of the King Pin
when viewed from the side of the wheel.
To measure this angle the wheels must be
on the vehicle If a turntable is not available it
may be useful to mark out the angles on the
workshop floor.
Start with a straight line and mark 2 diagonal
lines at 20° (40° total).
1. Turn the steering 20° to the right.
2. Set the measurement of the off-side
wheel by attaching the gauge to a level
surface, making sure the horizontal
bubble is level, at 90° to the wheel spindle
and adjust the bubble so that it is directly
over the Zero mark.
3. Now turn the wheels 40° to the left
(through the straight line if turntable is
not available) and attach the gauge to the
near side wheel as before.
4. The measurement reading is the caster angle.
Negative caster is when the steering axis is
inclined toward the front of the vehicle and
positive caster is achieved when the steering
axis is inclined toward the rear of the vehicle.
Gunson Trakrite Camber Gauge 5