Tatuus T-421 - UMP Adjustment

RELEASE 2.1.0
99
5.3.5 UMP adjustment
The front pushrod is directly installed on the upright, its pick-up point can be adjusted longitudinally (laser
marked arrow forward/rearward) resulting in a different weight transfer as function of the steering angle.
The farthest the point is from steer axis the higher will be the weight transfer and by consequence the
steering effort.
The following table summarize the possible configuration and the distance pickup to steering axis.
UMP STD
UMP +15mm
Inner Wheel
drop
Outer Wheel
drop
Inner Wheel
drop
Outer Wheel
drop
STEER
[deg]
[mm]
[mm]
[mm]
[mm]
0
0,0
0,0
0,0
0,0
10
-0,2
0,2
0,2
-0,2
20
-0,4
0,4
0,4
-0,4
30
-0,7
0,6
0,6
-0,6
40
-0,9
0,8
0,8
-0,8
50
-1,1
1,0
1,0
-1,0
60
-1,4
1,2
1,1
-1,2
70
-1,6
1,4
1,3
-1,4
80
-1,9
1,6
1,5
-1,7
90
-2,1
1,8
1,7
-1,9
Driving direction
UMP STD
UMP +15