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Service Manual – SC500
34 - Scrub System, REV
REV Motor Current Draw Test
WARNING:
This procedure must be performed by qualified personnel only.
1
Drive the machine on a level floor.
2 Remove the brush
3
Lift the machine so that the deck no longer touches the floor once lowered.
4 Disconnect the drive system connector (A) (Figure 6) on the Main machine controller (B) to disable
machine movement
5 Turn on the machine by the key and the button
6 Press the One-Touch button
to lower the brush deck
7 Apply the amperometric clamps (C) to an electrical wire (D) of the motor
8 Activate the brush by pressing the paddle, then check that the REV motor current draw is between 3
and 4A at 24V
9 Deactivate the brush by releasing the paddle and raise the brush deck by pressing the One-Touch
button
10 Remove the Amp clamp (C)
11 If the amperage is higher, perform the following procedures to detect and correct the abnormal
amperage:
◦
Check the REV motor carbon brushes
◦
Remove the REV motor then check the condition of its components
12 If the above-mentioned procedures do not lead to a correct amperage, it is necessary to replace the
motor
Figure 6:
A
B
D
C
