Brush Motor Electrical Input Check (For Adfinity™ 17St, 20St) - Advance acoustic Adfinity 17ST Service Manual

BRUSH MOTOR ELECTRICAL INPUT CHECK (For Adfinity™ 17ST, 20ST)
WARNING!
This procedure must be performed by qualified personnel only.
Check
1. If the tank (21) contains recovery water:
• Drive the machine to the appointed recovery water disposal area.
• Turn off the switches (71) and (73).
• Empty the recovery water tank (21) with the hose (16).
2. Drive the machine on a level floor.
3. Remove the brush/pad-holder.
4. Lower the deck by pressing the pedal (11).
5. Turn off the switches (71) and (73).
6. Grasp the handle (41) and carefully lift the tank (40).
7. Apply the amperometric pliers (A) on one cable (B) of the brush motor (C).
8. Turn on the brush/pad-holder by pressing the switch (71) and check that the motor electrical input is 3 - 4 A at 24 V. Turn off
the brush/pad-holder by pressing the switch (71).
Remove the amperometric pliers (A).
If the electrical input is higher, perform the following procedures to detect and correct the abnormal input:
NOTE
If the electrical input is higher than the maximum allowed value, the 3 battery warning leds (81) flash simultaneously.
• Check the tightening of F1 fuse screw (see the procedure in Fuse Check/Replacement paragraph).
• Check if there is dust or dirt (ropes, cables, etc.) on the brush/pad-holder hub.
• Check the motor carbon brushes (see the procedure in the relevant paragraph).
• Disassemble the motor (see the procedure in the relevant paragraph), and check the condition of all its components.
If the above-mentioned procedures do not lead to a correct electrical input, the motor must be replaced
(see the procedure in the relevant paragraph).
Reset
10. Perform steps 3 to 7 in the reverse order.
Adfinity™ 17ST / 20ST / X20R / 20D / X20D / X20C / X24D
B
SERVICE MANUAL
BRUSHING SYSTEM
C
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ENGLISH
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