Grillo CL 75, Operator'S Manual, Page: 15 / 61

CL75 / Translation of the original instructions
TROUBLE-SHOOTING
PROBLEM
CAUSE REMEDY
Difficult starting or irregular running of engine
– Carburation problems – Clean or change the air filter
– Adjust the carburettor (follow engine manual
instructions)
– Deposits or dirty residues in fuel – Empty the tank and use fresh petrol
– Check and change the petrol filter if necessary
– Check that the vent hole on the fuel tap is not
clogged
– ignition system does not work properly – check the fixing of the spark plug hood
– check that the electrodes are clean and that
they are at proper distance from each other.
Drop in engine performance during cutting
– Speed too high for cutting height – Reduce speed
– Raise cutting height
Uneven cutting
– Cutting deck not parallel to ground – Check tyre pressure
– Blades fault – Check that the blades are correctly mounted
– Sharpen or change the blades
– Check the tension of the deck engine belt
Vibrations during work
– Blades unbalanced – Balance blades or replace them if damaged
– Fastenings are loose – Check and fasten the blade fixing screws as
well as the fixing screws of the engine and
chassis.
THE MACHINE DOES NOT REMAIN IN NEUTRAL
Adjust the device (fig. 20, ref. A) by loosening the counter-nut and acting on the central screw.
HOW TO QUIT WORKING
Release the lever to disengage the blade after mowing (fig. 1, no. 2) and move the machine with the
mower deck at the highest cutting position using the lever (fig. 1, no. 1). Release the forward levers to
stop the machine (fig. 1, no. 1). Put the throttle lever in the STOP position (fig. 4, ref. C) to switch off the
engine.
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