GB
BRUSH CUTTERS OPERATING MANUAL
B) DETACHING A SPOOL
1) Unscrew the wing nut (fig.42) clockwise.
2) Remove the spool (fig.43-44-45).
3) Thoroughly clean the inside of the housing
(fig.46).
C) WINDING A LINE
1) Prepare two sections of line not over 6 m in
length.
2) Insert the end of the two lines into the 2 holes
(fig.47) provided.
3) Wind the two coupled lengths of line on the spool,
following the direction of the arrow printed on the
spool itself (fig. 48).
4) To make it easier to reinstall the spool in the
housing, attach both ends of the line in the two slots
provided (fig.49).
D) REFITTING A SPOOL
1) Insert both ends through the guiding eyelet
(fig.50).
2) Install the spool and pull boths end of the line
firmly until they hang out of the slots (fig.51).
3) Refit the spring (fig.52) and screw the wing nut
back (fig.53) on anti-clock wise.
26
9.MAINTENANCE
SPARK PLUG
At least once a year or if the engine has problems
starting up properly, check the condition of the spark
plug. Wait for the engine to cool before operation.
1) Remove the cap and unscrew the spark plug
with the wrench provided (fig. 54).
If the electrodes are excessively soiled or are very
worn, replace the spark plug with an equivalent (fig.
55-56).
Excessive soiling may be due to:
# The oil ratio used in fuel is too high and/or oil is not
of an appropriate type.
# Air filter is partly clogged.
2) Screw the spark plug manually as far as possible
to avoid damaging its socket. Use the wrench
provided only to tighten it (fig. 54).
AIR FILTER
Clean the air filter periodically or frequently when
working in dusty areas.
1) Unscrew the wing nut from the cover (fig.57).
2) Wash with water and neutral detergent.
3) Dry the filter before replacing it (fig.58).
Replace the filter if it is damaged so as not
compromise engine life.
FUEL INTAKE FILTER
Replace the filter once a year by removing it with a
hook through tank-refilling outlet.
SILENCER SPARK ARRESTER SCREEN
For models GB 26 and GBL 26 only.
# A ring with a screen is inserted in the exhaust gas
outlet (outermost part).
# Deposits tend to block the screen and considerably
reduce engine performance.
# Remove the ring with a screen using a pair of
pliers (fig.59).