45
Maintenance
Fig. 9-5 Checking the spark plug
Checking the spark
plug
1. Check the spark plug for damage and clean it using a suitable brush, if it can
be used again.
2. Check the condition and gap of the electrodes, also when using a new spark
plug. Adjust the gap to the correct value if necessary (see Fig.Fig. 9-5 Check-
ing the spark plug).
The spark plug is ready to be installed.
Installing the spark
plug
1. Turn the checked spark plug clockwise by hand into the spark plug thread in
the engine.Fig. 9-4 Ensure that the spark plug is inserted without it tilting, so
that the thread is not damaged.
2. Tighten the spark plug using the spark plug wrench supplied.
3. Press the spark plug connector firmly onto the spark plug.
The spark plug has been serviced in an orderly manner.
The generator is ready to use.
9.6 Cleaning the spark screen
The spark screen prevents escaping of glowing exhaust particles and is lo-
cated right next to the exhaust outlet. It must be disassembled every 100
operating hours and cleaned. The spark screen must be replaced if it is
strongly soiled or damaged.
Proceed as follows to service the spark screen:
One has the re-
quired tool
• a small slotted-head screwdriver
• Wire brush
Conditions The generator is switched off.
The engine and particularly the exhaust system have cooled down.
Servicing the spark
screen
1. Loosen the six screws on the exhaust gas side.
2. Loosen the screw for the spark screen’s clip.
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