Grillo FD450 Manual De Instrucciones página 17

– Sediment or dirt in the fuel
– No petrol flow
necessary
– Ignition system fault
properly
the
– Travel speed too high for
mowing height
– Engagement not enabled
switch
seat;
– Cutter deck not parallel with the ground
– Blades not cutting properly
– Travel speed too high for
mowing height and lawn condition
– Blades not balanced
– Loose screws and frame fixings
COLLISION WITH A STONE OR OTHER OBSTACLE
– Stop the machine.
– Switch off the engine, remove the mower deck, raise it and check that the blades have not been
damaged. Replace them if necessary (fig. 26).
FD450/ Translation of the original instructions
The starter motor turns but the engine will not start
Engine revs fall during mowing
When the blades are engaged, the engine cuts out
Uneven cutting and poor collection
Vibration while working
– Empty the tank and use fresh petrol
– Check the fuel filter and replace if
necessary
– Check that the choke is on
– Check level in fuel tank
– Check the fuel filter and replace if
– Check that the fuel vent hole is not
blocked
– Check that the spark plug cap is on
– Check that the electrodes are clean and
gap is correct
– Decrease speed
– Raise the deck a few settings
– Check the blade engagement micro-
– Operator must be seated in the driving
– Check tyre pressures
– Adjust the deck until parallel
– Check that blades are fitted correctly
– Sharpen or replace blades
– Adjust the tension of the PTO belt
– If possible cut grass with lawn dry
– Reduce travel speed
– Balance the blades or replace if damaged
– Check and tighten the blade, engine and
fixing screws
15