Translation of Original Operating Instructions
Airport Sweeper / Airport Stand Cleaner
2017-02-02 128
Symbol
Cause/solution
Compressed air supply too low. The function of the carbamide system can
no longer be guaranteed.
The following protective measures are adopted:
After 30 seconds, the blower, brushes, and water pump switch off and
the speed of the auxiliary engine switches to idling speed.
After another 30 seconds, the auxiliary engine switches off.
The auxiliary engine can still be started without the carbamide function and
continue to operated at idling speed.
Ensure there is a compressed air supply.
Flame start system is switched on for the auxiliary engine
Dirty air filter.
Filter needs to be serviced.
AS 990 is in the warm-up phase
Remaining warm up time is shown
Temperature difference (hydraulic oil, engine oil, coolant) to the set start
temperature is shown.
EMERGENCY STOP button is actuated. Rectify hazardous situation and twist
the button to unlock the EMERGENCY STOP switch.
No charge current.
The symbol lights up every 2 minutes.
Release switch for programming tasks is switched on in the cabinet.
Indicator flashing: Carbamide tank contents too low Fill up with carbamide.
The display lights up: Carbamide tank empty
Fill the tank
Water tank level lower than approximately 30%. The symbol flashes and a
warning tone sounds. Refill with water.
IR
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