3.6
Lubrication and maintenance operations
Spark plug check procedure: •
Dismount the cable (4) of a spark plug (3).
•
Dismount the spark plug (3).
•
Check the middle electrode (5)
•
If the spark plug is too burned, replace the spark plug (3) for a new one.
•
Measure the distance between the middle electrode (5) and the external electrode (6). The correct distance must be 4 mm (0.2 in).
•
4
In case of incorrect distance, adjust the distance between the middle electrode (5) and the external electrode (6) by slightly bending the external electrode (6).
•
Screw in the spark plug (3).
•
Mount the cable of the spark plug (4).
•
Perform the spark plug test again according to the previous procedure.
•
Unless the burners start within a few seconds, repeat the whole procedure.
Perform maintenance of spark plugs when the machine is parked on a flat and solid surface with the engine and battery disconnecter off. Have the test and maintenance of spark plugs performed by an authorised service plant or qualified personnel according to the given procedure. There is a risk of burns. Use protective equipment.
142
3 451199A
4 mm (0,2 in)
3
5
6 451152
F80W
