60
TROUBLESHOOTING
76.
THE BRUSH MOTOR DOES NOT WORK
ATTENTION: To avoid damaging the floor, the motor only starts up when the machine is moved forwards
1.
Check that the base is lowered during start-up
2.
The operator must be properly seated in the driving position
3.
Check no thermal protection device has intervened
4.
Check the correct connection of the motor to the terminal under the footboards
77.
ELECTRIC FUSES AND THERMAL CUT-OUTS
The machine is fitted with the following electrical protection systems:
Power fuses arranged in the electrical box, to protect against short-circuiting.
thermal circuit breakers arranged on the outside of the handlebars, to protect the following motors:
1.
25A circuit breaker (1) for left-hand side suction motor
2.
25A circuit breaker (2) for right-hand side suction motor
3.
20A circuit breaker (3) for the side brush motor
In the event of malfunctioning, check a thermal cut-out has not intervened. If the motor overheats, its
thermal cut-out intervenes to block the electricity supply. Wait a few minutes until it has cooled down, then
press the specific circuit breaker button to reactivate the power supply and motor operation. If the problem
persists, contact the technical assistance centre.
78.
THE AUTOMATIC WATER/DETERGENT DOSING SYSTEM DOES NOT WORK
The automatic water/detergent dosing system has been designed with criteria of extreme sturdiness and
reliability, but there is a special by-pass system that allows you to use the machine even if the system is
out-of-use.
To by-pass the automatic water/detergent dosing system, you must rotate the tap lever (1) on the rear-
centre of the base downwards; in this way you can go on working even with the system out-of-use.
Remember, however, to put not only water in the solution tank, but the right quantities of both water and
detergent. With the dosing system out-of-use, the water flow is regulated via the tap on the steering
column.
Contact a COMAC authorised dealer to have the system repaired.
79.
ALARMS
The machine is fitted with a flashing warning light (1) for diagnosing faults in the traction motor control
system. Each sequence (number of consecutive flashes) indicates a particular type of fault. When flashing
begins (with an accompanying operating fault), you should contact the technical assistance centre,
specifying the number of flashes.
1
1
2
1
3
