GB
country where such operations are
performed.
7.4.2 Air filter maintenance
A dirty air filter will reduce
the air flow to the carburettor. To prevent
carburettor malfunction, check the air filter
regularly. If the engine is used in an
especially dusty environment, we suggest
you check it every time before starting up.
Never use Diesel fuel or
solvents with a low evaporation point for
cleaning the air filter cartridge.
Never run the engine without the air filter; the
engine would wear down quickly due to dust in
the air.
To access the filter cartridge, remove the air filter
closing lid (Fig. 24 ref. 3) after having unscrewed
both screws which keep it attached to the air filter
box.
Take out the cartridge (Fig. 26 ref. 1) and wash it
using a neutral detergent solution and rinse
carefully. Let the filter cartridge dry out
completely, then dip it in clean motor oil.
Squeeze out carefully in order to remove excess
oil.
Replace the cartridge only if it should be visibly
no longer whole.
7.4.3 Spark plug maintenance
For both models of generating sets, use spark
plugs mod. BP6ES, BPR6ES (NGK), W20EP-U,
W20EPR-U (ND) or else spark plugs made by
other manufacturers but compatible with the
above.
Never use spark plugs with a different
temperature degree from those listed above.
•
Take the cap off the spark plug (Fig. 26 ref. 2)
and using the special wrench take out the
plug.
•
Perform a sight check. Replace in case of
obvious war or if the insulator is broken or
cracked.
•
Use a steel brush to clean the spark plug, if it
can be used again.
•
Use a thickness gauge to measure the
distance between the electrodes. The right
distance should be between 0.7 and 0.8 mm
(Fig. 27).
27
•
Correct the distance if necessary, folding the
side electrode.
•
Make sure that the spark plug washer is in
good condition and then screw back on by
hand so as to be sure it is put back in place
properly. Finally, tighten using the special
wrench at the right torque (see instructions on
the engine user and maintenance manual).
When assembling a new
spark plug, tighten by 1/2 turn after the spark
plug has compressed the sealing washer.
26
If you put back the old plug after having
removed it, tighten it by 1/4 turn after it has
compressed the sealing washer.
The spark plug must be
tightened firmly. A badly positioned spark
plug may become very hot and damage the
engine.
Energy 4000 B / 4000 GAS
Vers. 013
18
