21
MAINTENANCE
Cooling System
To keep the working temperature as low as possible the machine
is equipped with a cooling system.
The cooling system
(Fig.43) consists of:
1. Fins on the flywheel.
2. Cooling fins on the cylinder.
3. Cylinder cover (directs cold air over the cylinder -
Fig.44).
Clean the cooling system with a brush once a week, more often in
demanding conditions. A dirty or blocked cooling system results in
the machine overheating which causes damage to the piston and
cylinder.
WARNING: The coil spring is under tension and
could fly apart causing serious injuries. Never try to
disassembly or modify it.
WARNING: Never run the hedge trimmer without all
the parts, securely in place.
Because parts can fracture and pose a danger of
thrown objects, leave repairs to the flywheel and
clutch to trained Servicing Dealers.
Spark Plug
This engine uses a Champion RCJ-6Y with .02” (0.5 mm) electrode
gap (Fig. 45). Use an exact replacement and replace every six
months or more frequently, if necessary.
WARNING: Never test the ignition system with igni-
tion wire connector removed from spark plug or with
unseated spark plug, since uncontained sparking
may cause a fire. A loose connection between spark
plug terminal and ignition wire connector in the boot
may create arcing that could ignite combustible
fumes and cause a fire.
Use only resistor type spark plugs of the approved range.
Factors such as:
- too much oil in fuel mix;
- dirty air filter;
- unfavourable running conditions, e.g. operating at part load;
may result in rapid deterioration of the spark plug.
Muffler
Free the engine and silencer of twigs, leaves and excess lubricant
to prevent the risk of fire.
WARNING: Do not operate your hedge trimmer if the
muffler is damaged, missing or modified. An impro-
perly maintained muffler will increase the risk of fire
and hearing loss.
43
44
45
RCJ-6Y
en
Efco TG2600 Inglese 29-03-2007 14:21 Pagina 21
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