17
EN
Instruction manual
cutting attachment with the hook against the branch and
then perform the cross-cut from the top downwards.
Relieving cut [F15]
To avoid tearing the bark on thick branches, always start
by performing a relieving cut on the underside of the
branch.
∙
To do this, apply the cutting attachment and pull it
across the bottom of the branch in an arc as far as the
bar nose.
∙
Perform the cross-cut – position the guide bar (31)
with the hook against the branch and then perform the
crosscut.
Flush-cutting thick branches [F16]
If branch diameter is more than 10 cm, first perform
undercut and then cross-cut at a distance of about
20 cm from the final cut. Then carry out the flush-cut,
starting with a relieving cut and finishing with a cross-
cut.
MAINTENANCE AND STORAGE
CAUTION! Before carrying out any
maintenance operation, turn off
the engine and wait until it stops
completely.
∙
Always keep the tool and the ventilation slots (if
present) cleaned. Regular cleaning and maintenance of
the appliance will ensure efficiency and prolong the life
of your tool.
∙
If the tool should fail despite the rigorous
manufacturing and testing procedures, the repair should
be carried out by an authorized IVT customer service.
∙
Keep all nuts, bolts, and screws tight, to be sure the
tool is in safe working condition.
∙
Replace worn or damaged parts for safety.
∙
Use only original spare parts. Parts not produced
by manufacturer may cause poor fit and possible injury.
∙
Store the tool in a dry room out of reach of kids and
away from any flammable material.
∙
Store all fuel tanks securely. Never store the
equipment with fuel in the tank inside a building, where
fumes can reach an open flame or sparks.
Air filter [F17]
Soiled air filters reduce the engine output. Regular
checks are therefore essential. The air filter should
be checked after every 25 hours of use and cleaned if
necessary. If the air contains a lot of dust, it should be
checked more frequently.
1. Remove the air filter cover (17).
2. Remove the filter element (18).
3. Clean the filter element (18) by tapping it or blowing
it or, if necessary, by washing with warm soapy water.
Dry completely before installing. If the air filter element
(18) is broken or shrunk, replace with a new one.
NOTE: Never clean the air filter element (18) with petrol
or inflammable solvents.
Muffler
Inspect periodically the muffler for loose fasteners, any
damage or corrosion. If any sign of exhaust leakage
is found, stop using the machine and have it repaired
immediately.
Spark plug (20) [F18]
Check the spark plug (20) for dirt and grime after about
10 hours of operation and if necessary clean it with a
copper wire brush. Thereafter service the spark plug
(20) after every 50 hours of operation.
1. Pull off the spark plug cap (21).
2. Remove the spark plug (20) with a spark plug
spanner.
3. Inspect the condition of spark plug (20). Check
that the electrode gap is 0,6-0,7 mm, if not, adjust. If it
is dirty, clean it. If it is damaged, replace it with one of
recommended type!
4. Assemble in reverse order.
Fuel filter (19) [F19]
The fuel filter (19) of the suction head is used to fill the
fuel required by the carburetor. When the engine run
short of fuel supply, check fuel filter (19) for blockage.
A periodical visual inspection of the fuel filter (19) is to
be conducted, clean after about 50 hours of use. Filters
found to have hardened, been polluted or clogged up
are to be replaced.
1. Open the fuel tank plug (13) and carefully drain all
fuel from fuel tank.
2. Use a wire hook to pull out the suction head through
the tank opening.
3. Inspect the fuel filter (19). If it is dirty, remove it and
wash it with non-flammable solvent.
4. Remove water and dirt stood in the fuel tank by
rinsing its inside.
5. Place all parts back correctly.
Setting the idling speed [F20]
∙
If the engine stalls when the throttle lever (7) is
not pressed, the idling speed may be adjusted: turn the
idling speed screw (23) clockwise until the machine runs
smoothly at idling speed (rotation increases).
∙
If the idling speed is so fast that the cutting tool
continues to rotate, when the throttle lever (7) is not
pressed, idling speed has to be reduced by turning the
Summary of Contents for GBC-25MT
Page 4: ...4 2 1 8 9 4 5 6 7 10 13 11 12 31 33 35 28 30 29 GBC 25MT ...
Page 5: ...5 4 3 2 10 8 5 6 14 15 11 7 40 31 33 39 F1 F6 F2 F3 F4 F5 ...
Page 6: ...6 388BA032 KN max 60 45 45 35 30 29 38 36 F7 F13 F14 F8 F9 F10 F11 F12 ...
Page 7: ...7 2 1 1 2 A 0 6 0 7 mm 18 17 20 19 23 F15 F21 F22 F16 F17 F18 F19 F20 A B C ...
Page 8: ...8 0 3 mm HEDGE TRIMMER POLE PRUNER 30 85 60 10 1 5 30 31 32 F23 F24 F25 F26 ...
Page 9: ...9 ...