Nilfisk-Advance CMAX 28/34ST User Manual

22 - FORM NO. 56043071 CMAX
™
28/34ST / I-MAX
™
28/32C, BA 750/850ST, BA 750C
SCRUB BRUSH SYSTEM
TROUBLESHOOTING GUIDE ELECTRICAL
Possible Symptoms
1 Scrub brush motors and solution solenoid valve do not work
2 Scrub brush motors do not work
3 Scrub brush auto remove function does not work (optional)
SYMPTOM ONE
No
No
Check the battery
meter, is the red
indicator light
flashing
Check the scrub
system off indicator
light is it flashing red
or solid red.
See the scrub brush
system troubleshoot-
ing Symptom 2 parts
A and B.
Recharge battery
pack (the low volt-
age cutout is
functioning*)
Yes
Yes
Scrub brush motors
& solution solenoid
valve do not work
(See Control Panel in
Know Your Machine
section).
**The scrub motor
or scrub deck lift
actuator is over-
loaded
Inspect the brushes and lift
actuator motor for any possi-
ble mechanical or electrical
high current draw
Examples
• Short circuit motor(s)
• Worn carbon brushes
• Frozen lift linkage
• Restriction on rotation of brush output
drive plate gear box etc.
*Reference the Description of the Battery Low Voltage Cutout Feature in the Electrical System of this manual.
**When experiencing a scrub system overload, the scrub and solution systems will turn off and the scrub-off/pressure-decrease indicator will flash
red at a fast rate (four times per second). Correct the cause of the overload and to reset, turn the key switch off and then back on.

Nilfisk-Advance CMAX 28/34ST Specifications

General

Brand	Nilfisk-Advance
Model	CMAX 28/34ST
Category	Floor Machine
Language	English