103
Service Manual – SC401, SCRUBTEC 344
20 - Wheel System, Traction
Shop Measurements
Drive Wheels Controller (EB3)
Battery volts at battery, key on = 24 27V
Power Supply
Figure 14:
PIN
Color
Description
Measured
Comments
B+
Red
Main machine controller power 24.15 V
No functions
B-
Black
Main machine controller power supply - 0.00 V
No functions
Power Supply
Figure 15:
PIN
Color
Description
Measured
Comments
M1
Red
Main machine controller power 9.05 V (Min)
Forward speed
17.10 V (Mid)
24.07 V (Max)
9.05 V (Min)
Reverse speed
9.15 V (Mid)
4.72 V (Max)
M2
Black
Main machine controller power supply - 9.05 V (Min)
Forward speed
17.10 V (Mid)
24.07 V (Max)
9.05 V (Min)
Reverse speed
14.97 V (Mid)
19.42 V (Max)