GB-13
G
B
8. Operation
3.
Use a slow, deliberate action to cut heavy growth.
The rate of cutting motion will depend on the material
being cut. Heavy growth will require slower action than
will light growth.
4.
Never swing the unit so hard as you are in danger of
losing your balance or control of the unit.
5.
Try to control the cutting motion with the hip rather
than placing the full workload on the arm and hands.
6.
Take precautions to avoid wire, grass and dead, dry,
long-stem weeds from wrapping around the head
shaft. Such materials can stall the head and cause
the clutch to slip, resulting in damage to the clutch
system if repeated frequently.
ADJUSTING THE LINE LENGTH
•
Your brush cutter is equipped with a semi- auto type
nylon line head that allows the operator to advance
the line without stopping the engine. When the line
becomes short, lightly tap the head on the ground
while running the engine at full throttle.
•
Each time the head is bumped, the line advances
about 25 mm. For better effect, tap the head on bear
ground or hard soil. Avoid bumping in thick, tall grass
as the engine may stall by overload.
Every
Every
Every
25
50
100
System/components
Procedure
Before
hours
hours
hours
Note
use
after
after
after
fuel leaks, fuel spillage
wipe out
✔
fuel tank, air filter, fuel filter
inspect/clean
✔
✔
replace, if necessary
see adjusting
replace carburetor
idle adjusting screw
✔
idling speed
if necessary
clean and readjust
GAP: .025 in (0.6-0.7 mm)
spark plug
✔
plug gap
replace, if necessary
cylinder fins, intake air cooling vent
clean
✔
muffler, spark arrester, cylinder exhaust port
clean
✔
throttle lever, ignition switch
check operation
✔
replace if
cutting parts
✔
something’s wrong
gear case
grease
✔
screws/nuts/bolts
tighten/replace
✔
✔
not adjusting screws
debris guard
make sure to attach
✔
ENGINE
SHAFT
9. Maintenance
BLADE
•
Check the blade and the fasteners for looseness,
cracking, or bending.
•
Check the cutting edges and reform with a flat file.
(A) 8-teeth blade
(B) 3-teeth blade
Point :
1. Keep the end corner sharp.
2. Round the root of the edge, using round file.
3. Do not use water when using a grinder.
•
It is recommended that filing should be done by pro-
fessionals.
•
Especially regarding filing the saw blade, Leave it to
the professionals.
(B)
(A)
