Toro 4042 Manuel D’Utilisation
Greensmaster eFlex 1800/2100
Page 4 -- 38
Electrical System
Speed Control Potentiometer
1. Potentiometer
2. Cap screw (2 used)
3. Spacer (2 used)
4. Speed wheel
5. Seal
6. Throttle bracket
7. Spacer (2 used)
8. Clutch disc
9. Spring
10. Lock nut (2 used)
11. Console cover
12. Washer head screw (4 used)
Figure 49
FRONT
RIGHT
6
3
5
4
1
8
9
2
10
7
11
12
The speed control potentiometer controls the electric
motor speed which determines traction and cutting reel
speed. The TEC controller uses the potentiometer set-
ting as an input to determine the necessary signal output
for the motor controller for correct electric motor speed.
The speed control potentiometer is attached to the
speed control assembly on the handle (Fig. 49).
Speed Control Potentiometer Operation
Speed control potentiometer operation can be checked
with the InfoCenter. With the key switch in the RUN posi-
tion and the InfoCenter in the Diagnostics menu, choose
Throttle and make sure that the displayed voltage
changes as the speed wheel is rotated. Further poten-
tiometer testing is necessary only if the displayed volt-
age does not change when using the InfoCenter.