34 - Scrub System 69Service Manual – SC250, Scrubtec 334, MA 30
Brush Motor Amperage Test (continues)
3. Apply the amp clamp (C) to the electrical cable (D) of the brush motor.
4. Switch on the machine and operate it with one hand on the handlebar.
5. Check that the brush motor current draw is no more than 1 A at 36 V.
6. If the current draw is higher, check the belt tension or remove the brush motor (see the procedure in the
Vacuum System Motor Disassembly/Assembly paragraph), and check the condition of all its components
to detect and correct the reason for the abnormal current draw:
If the above-mentioned procedures do not produce the correct readings for the brush motor current
draw, the motor must be replaced.
Figure 6
C
D
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