103Service 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 supply + 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 supply + 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)