Yanmar YM155d Service Manual page 101

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Adjust t w i n until
A - 8 = 0.157 "0.315 in.
1 4 - 8
mml
.h
ru:
Camber angle
-
provides stability in steering and straight
line performance.
p:
King pin inclination
-
reduces steering effort.
7:
Caster angle
-
improves directional stability.
T:
Trail
-
distance between point at which an imaginary line
extending from the axis of the king pin intersects with the
ground and the point at which an imaginary line extending
perpendicularly from the axis of the wheel intersects with
the ground.
Toe-in:
The difference between A and B. Serves t o improve
directional stability.
Because o f the camber angle, the
left and right front tires each t r y t o roll forward out-
wardly. This is prevented by the tie-rods, and so a certain
amount of slippage is created on the ground surface, and
directional stability tends t o be impaired.
T o remedy
this, the toe-in should be adjusted.

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