MD15-MD18/ Translation of the original instructions
TROUBLE-SHOOTING
PROBLEM
CAUSE REMEDY
Dashboard OFF with key in “AVV.” (ON) pos.
– Battery not supplying power – Check connecting cables
– Recharge battery
– Change the fuse
Dashboard ON, but starter motor does not turn over with key in “AVV” (ON) pos.
– Battery not supplying enough power – Recharge battery
– Start-up go-ahead not given – Travel lever in stop position
– Disengage blades
– Sit in the driver’s seat
– Check the three safety sensors (seat – blades
engagement - feed lever)
Difficult starting or irregular running of engine
– Carburation problems – Clean or change the air filter
– Adjust the carburettor (follow engine manual instructions)
– Deposits or dirt in fuel – Empty the tank and use fresh petrol
– Check and change the petrol filter if necessary
Starter motor turns over but engine does not start
– No petrol flow – Check that the choke has been activated (if engine is cold)
– Check petrol level in tank
– Check wiring of carburettor opening control
– Check petrol filter (and change if necessary)
- Check that the vent on the tank cap is not blocked
– Fault in ignition system – Check that the caps of the spark plugs are correctly
fastened
– Check that the electrodes are clean and at the correct
distance apart.
Drop in engine performance during cutting
– Speed too high for cutting height – Reduce speed
– Raise cutting deck by a few notches
Uneven cutting
– Cutting deck not parallel to ground – Check tyre pressure
– Level off the cutter deck
– Blades fault – Check that the blades are correctly mounted
– Sharpen or change the blades
– Check the tension of the cutter deck motor belt
Vibrations during operation
– Blades unbalanced – Balance blades or replace if damaged
– Fastenings are loose – Check and fasten the blade fixing screws as well as the
fixing screws of the engine and chassis.
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