Operation Manual
BX25. RCK54(P)-23BX. RCK60B-23BX, LA240. BT601, WSM
FRONT AXLE
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.
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(b)
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•
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.
ICamber
W1012811
• 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.
0.209 rad
Kingpin angle
12
0
W1013073
• 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.
Orad
Camber
0
0
F:
Front
R:
Rear
W1013142
3-M2