Front Wheel Alignment - Kubota MX5100 Workshop Manual

MX5100, WSM

2. FRONT WHEEL ALIGNMENT

To assure smooth mobility or maneuverability and enhance stable and straight running, the front wheels are
mounted at an angle to the right, left and forward directions. This arrangement is referred to as the Front Wheel
Alignment.
Camber
The front wheels are tilted from the vertical as viewed
from the front, upper wheels are spreader than lower
ones.
This inclination is called camber (a). Camber reduces
bending or twisting of the front axle caused by vertical
load or running resistance, and also maintains the
stability in running.
Camber
Kingpin Angle
The Kingpin is titled from the vertical as viewed from
the front.
This angle is called kingpin angle (a). As with the
camber, kingpin angle reduces rolling resistance of the
wheels, and prevents any shimmy motion of the steering
wheel.
It also reduces steering effort.
Kingpin angle
Caster
The kingpin is titled forward as viewed from the side.
The point (b) of the wheel center line is behind the point
(a) of the kingpin shaft center line.
This inclination is called caster (c). Caster helps
provide steering stability.
As with the kingpin inclination, caster reduces
steering effort.
Camber
F : Front
6-M3
FRONT AXLE
0.035 rad
2WD
2 °
0.070 rad
4WD
4 °
W10128110
0.131 to 0.146 rad
2WD
7.5 to 8.5 °
0.218 rad
4WD
12.5 °
W10130730
2WD
0.026 rad
1.5 °
4WD
R : Rear
W10131420