GARDENJACK GBC26C User manual

O
RIGINAL INSTRUCTIONS
Brush Cutter
GBC26C

Brush Cutter
GBC26C 1
Contents
Contents Page........................................1
Machine Information...............................2
Machine Diagram...................................3
Preparation & Use...............................4/5
Mounting Spool & Blade...................6/7/8
Fuel & Refuelling..........................9/10/11
Using The Cutting Tool..............12/13/14
Maintenance...............................15/16/17
Cleaning & Transport...........................18
Technical Data................................19/20
Declaration...........................................21

GBC26C
Brush Cutter
2
GBC26C
Brush Cutter
2
1 Gear Case
2 Protective Hood
3 D type handle
4 D type handle Holder
5 Start/Stop Switch
6
Throttle Lock
7
Throttle Lever
8 Starter Handle
9 Fuel Tank
10 Spark Plug
11 Choke
12 Oil bubble
13 Exhaust System
A Locking Disc
B Hex Screw
C Lock Washer
D Retaining Disc
E Spool
F Cutter Blade Protection
G Brush Cutter Blade

GBC26C
Brush Cutter
3
Machine Diagram

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GBC26C 4
Preparation and Use
Before first Use
Remove all parts of the petrol brush cutter and the accessory from the
packaging. Keep packaging material out of reach of children.
Contents
·Petrol Brush Cutter
·Pool with double Cutting Thread 2.4 mm, 4 m
Length,
·Rush Cutter Blade,
·Holder Strap,
·Mounting Tools,
·Mixing Bottle for Fuel.
Intended Use
·Depending on the attached cutting tool, the machine is intended to trim
lawns or grass, to cut brushwood, shrubbery, bushes, and small trees in
private areas.
·The machine is not suitable for continuous professional operation.
·This machine shall not be used for any other purpose.
·Always use the applicable cutting tool for the correct job. For
trimming lawn grasses the plastic cutting thread of the spool is
suitable.
·Or cutting weeds, high grasses, bushes, shrubs, underwood, thicket and
the like, the brush cutter blade is suitable. The max trunk diameter is
2 cm.
·This machine is only intended for cutting grass, weeds, bushes,
undergrowth. It should not be used for any other purpose such as
digging or hedge cutting.

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GBC26C 5
Mounting the D type handle
1. Adjust the D type handle according to your body position, so the
machine can be hold firmly and securely. Re-tighten the screws.
2. Mount the D type handle as shown: Install the screw directly. The
machine is designed that way to be carried on the right side of the
operator.
Hint: For space-saving transport and storing, dismount the D type angle
3. Fasten the throttle cable (9) with the
included clamps on the tube. By
doing this, the cable cannot be
damaged if accidently jammed.
4. Insert both tube into each other and
lock them with the locking screw.

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GBC26C 6
Mounting
5. Mount the protective hood (2) on
the provided holder, as shown in the
figure.
6. Use the included hex key to tighten
the hex screws.
Using the Shoulder Strap
The machine has to be operated with a suitable shoulder strap.
1. Hook the machine on the carabiner
hook and allow the machine to
balance on the shoulder strap. By
doing this, the machine must be
switched off.
2. For better stability, thread the end of
the strap over the buckle, as shown
in the picture. Tighten the end.
This will prevent the strap from
slipping out of the buckle due to the
weight of the device.
3. Slide the pin into the opening. Thus,
the carabiner hook is securely
fastened.
4. Pull out the pin to remove the carabiner hook.
·Always switch off the machine before removing the carabiner hook from
the shoulder strap.
·Hang the machine on the carabiner hook. The cutting tool must evenly
touch the ground when working in comfortable working position. If
necessary, loosen the suspension eye (10) by using the hex key, move it
back or forth & re-position the suspension eye.

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GBC26C 7
Mounting the Spool
Before mounting the spool, dismount the gear shaft from the motor
unit or remove the spark plug cap!
To operate the machine as a grass-trimmer, mount the spool on the gear case
1. Block the cutting tool holder of the gear case (1) by using the toothed
locking disc (A) and the included hex key. Insert the hex key into the
provided opening.
Attention LEFT-HAND THREAD!
2. Turn the spool on the cutting tool holder and turn the spool counter
clockwise. Hold the hex key tight while turning the spool on the thread.
Mounting the Brush Cutter Blade
Before mounting the blade, dismount the gear shaft from the motor
unit or remove the spark plug cap!
The cutting tool holder is equipped with left-hand thread.
The provided brush cutter blade is sharpened on both sides and can be
mounted inversed when worn. After both sides are worn, sharpen the cutter
blade or have it sharpened by a professional.
1. Insert the toothed locking disc on the
thread of the cutting tool holder (1).
2. Place the brush cutter blade on the tool
holder and then the lock washer (C). Make
sure the lock washer is placed with the
convex side up!

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GBC26C 8
3. Place the retaining disc (D) on the tool holder and
turn the hex nut (B) on the thread.
Attention LEFT-HAND THREAD!
4. To tighten the hex nut (B) use the included
combination wrench and turn the wrench counter
clockwise!
5. Block the locking disc with
the hex key. In the tool
holder and in the locking
disc you will find openings.
6. Insert the hex key into the
opening of the tool holder
and turn the tool holder until
the hex key moves into the
whole of the locking disc
and block the locking disc in
this position.
7. Tighten the hex nut with the included combination wrench only hand tight
and hold the hex key firmly in this position while tightening the hex nut.

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GBC26C 9
Mixing Bottle
For mixing the fuel and the two stroke oil only use the provided mixing
bottle. First fill the fuel into the bottle and then the oil. Thoroughly shake the
mixture.
Fuels and Refuelling
Fuels and Refuelling
·Do not smoke and avoid open flames while refuelling
the tank.
·Stop the engine before refuelling the tank.
·Let the machine cool down before refuelling again.
·Fuels can contain substances similar to solvents.
·Eyes and skin should not come in contact with fuels. Always wear
protective gloves when refuelling.
·To protect the environment, make sure that no fuel gets into the soil. Use
an appropriate and absorbent base.
·Fuel and fuel mixtures age through evaporation, especially at high
temperatures. Aged fuel and fuel mixtures can cause starting
problems and damage the engine. Purchase only that amount of fuel,
which will be consumed over the next few months. At high
temperatures (e.g. in summer), once fuel has been mixed it should be
used up in 6 – 8 weeks.
·Failure in mixing the correct fuel will cause severe damage to the engine
inner parts. Never use oil for 4-stroke engines. Do not mix the fuel and
the oil directly in the fuel tank.

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GBC26C 10
Refuelling
The engine may only be operated with a
mixture of fuel (unleaded fuel with
minimum 89 Octane) and high quality oil for
air-cooled two-stroke engines. Only use oil
without anti oxidant additive that is especially
formulated for air-cooled two- stroke
engines.
Mixing Ratio: Fuel 40: Oil 1.
Starting the Engine – Cold Start
1. Lay down the machine with the tank and the protective hood on the
ground. Make sure the cutting tool (brush cutter blade or spool) does
not touch the ground or other foreign objects.
2. Place the Start/Stop switch to the position "I" (Start).
3. Move the choke downwards (to the position "ON").
4. Press the primer several times, until the transparent bubble fills with fuel.
5. Grasp the control handle with the right hand. This way the throttle lock
will be pressed, too.
6. Push the throttle lever and the half-throttle lock button
simultaneously.
7. Hold the half-throttle lock button pressed and release the throttle lever
and the throttle lock. The half-throttle lock button (6) will automatically
remain in the depressed position.
8. Assume a save position.
9. Use your left hand to keep the machine strongly pressed on the
ground. ATTENTION: Do not put your foot on the shaft or kneel on the
shaft.
10. Pull the starter handle vigorously 4 to 5 times.
11. Pull the starter handle quickly and forcefully up to the cable end
several times, until the engine starts.
Please note that the engine will start at half acceleration and with
rotating cutting tool.

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12. Let the engine run at idle speed for a few seconds to warm up.
13. Press the throttle lever shortly and the half-throttle lock button will
switch off automatically. The choke will automatically turn to the
initial up-position. The engine returns to idle speed again. The tool holder
with the mounted cutting tool stops after some seconds.
Turning Off the Engine
1. Release the throttle lever. The engine is now at idle speed.
2. Place the Start/Stop switch to the position "O" (Stop). ATTENTION: The tool
holder will still rotate for some seconds after turning off the engine. Hold
the machine firmly with the handle until the tool holder stops completely.
Starting the Engine – Warm Start
For starting a warm engine, observe the chapter Starting the Engine – Cold
Start but please note that in this case the choke lever will remain in the
position “OFF”.
Hints for safe Operation
·When you work with the petrol brush cutter for the first time,
familiarise yourself with the operation and control of the petrol
cutting blade without running engine.
·Always wear appropriate protection when working with the machine.
·The design of the petrol brush cutter allows for operation only at the right
side of the user's body.
·Always hold the machine securely with both hands on the biker
handles.
·Always keep in mind that the cutting tool keeps rotating for a short while
after the throttle is released.
·Always ensure a proper idle running of the engine so that the
cutting tool will no longer rotate, when the throttle is pressed.
·Always use the highest speed for work, this way you will achieve the
best cutting result.

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GBC26C 12
Working with the Cutting Tool – Spool
·When you operate the machine for the first time, pull the plastic
thread ends out until they almost reach the radius of the protective
hood. Push the release button in the middle of the spool with your
finger while pulling on both ends of the plastic thread.
·The rotating threads will wear out or break after a while. This is
noticeable by a poor cutting performance. While the spool is
moving (press the throttle!), press the spool against the ground or a solid
surface. By pressing the release button in the middle of the spool,
approx. 3 cm of thread will be unwound. If the plastic threads are torn,
press the release button several times in order to reach the optimum
cutting thread radius.
Cutting with the Spool
·To perform a clean cut, slowly move the machine from one side to the
other. Hold the machine with an inclination of 20 – 30°.
·For taller grass, it is recommended to cut the grass gradually in
several passes. First cut off the tips. By doing this, the engine will not be
overloaded.
·Make sure to keep the cutting thread away from hard surfaces,
otherwise the cutting thread will wear out very quick.
·Use the plastic thread spool for a clean cut also at uneven edges, fencing
posts, and trees.
·Carefully advance the trimming thread to an obstacle, and use the tip of
the thread to cut around the obstacle. When the trimming thread
comes into contact with stones, trees, and walls, the thread wears out or
breaks off ahead of time. In this case, it might happen that the plastic
thread disappeared into the string spool housing and the automatic
trimming thread feed will not work anymore.
Cutting Tool – Blade

GBC26C 13
Replacing the Plastic Thread
Dismount the gear shaft from the motor unit!
1. Depress vigorously both latches on
the housing in order to dismount
the spool.
2. Remove the cover of the spool.
3. Wind a new plastic thread around
the holder. Wind the thread tightly
around the holder by turning
counter clockwise. The spacer in the
middle of the holder will separate
both threads from each other. Hint:
On the bottom side of the thread
holder you will find the wind
direction for the thread. Wind the
thread in direction WIND CORD.
4. Hook the last 15 cm of the thread
end into the provided notches in the
holder.
5. Guide both thread ends through the
metal eyelets in the spool housing
and re-attach the thread holder
into the cover. Make sure the parts
lock audibly and visibly into each
other.
6. Mount the spool on the tool holder
again.

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Working with the Cutting Tool – Brush Cutter Blade
·While working with a crush cutter blade, there is generally a risk of
kickback, when the cutting tool hits a solid obstacle, such as stones, trees,
branches, etc. and when the cutting tool becomes jammed in the obstacle.
Thereby the machine is hurled sideward or in direction to the operator and
this will lead to serious injuries.
·Kickback occurs particularly
when applying the
blade segment between 12
and 2 o’clock to solids,
bushes and trees with 2 cm
or larger diameter.
·Avoid kickback by cutting
only in the area of between
8 and 11 o’clock. Never cut
in the area between 12 and
2 o’clock.
·Avoid using the brush
cutter blade for comb
through brushwood, rank
growth, young tree populations
(trunk diameter of max. 2 cm) and high grass.
·To cut rank growth and brushwood, you have to immerse the brush cutter
blade from the top. This way, the objects to be cut will be shredded.
ATTENTION: Always be careful, when using this working technique,
because the further away the cutting tool is from the ground, the
higher is the risk that objects to be cut and particles will be hurled
sideways.

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Maintenance
Maintenance Hints
·Only use original replacement parts and original accessory. The use of
unapproved accessories and cutting tools increases the risk of
accidents.
·Incorrect repair and poor maintenance can shorten the life of the
machine and increase the risk of accidents. Do not perform any
modifications to the machine as this will endanger your safety.
·The condition of the cutting tool, the protective hood and the
shoulder harness must be checked before starting work. Particular
attention is to be paid to the cutting tool, which must be correctly
sharpened.
·Turn off the engine and remove the spark plug cap when replacing or
sharpening the cutting tool, and also when cleaning the cutting tool.
·Never straighten or weld damaged cutting tools.
·Clean the machine at regular intervals and check all screws and nuts
are well tightened.
·Never service or store the machine in the vicinity of open flames.
·When cleaning, servicing and storing the machine, always attach the
cutter blade protection.
Maintenance after each Operation
ATTENTION! Before cleaning, inspecting or maintaining the motor unit, make
sure that engine is stopped and has cooled down. The engine will heat up
during operation. Do not touch the exhaust system. There is risk of burns!
Before working on the machine (transport, mounting, dismounting, cleaning
and servicing) and if not in use, remove the spark plug cap or disconnect the
gear shaft from the motor unit!

Cutting Tool –Spool
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GBC26C 16
Maintenance
·Before starting work and after refuelling the tank, check if the cutting tool
is seated securely.
·Even when used in the intended way, some components are
subject to normal wear. They have to be checked frequently. These parts
include, among others, the brush cutter blade, the protective hood and the
spool. These parts have to be replaced depending on the kind of duration or
usage.
·Check the gear lubrication, especially during longer periods of work, and
severe dust exposure. So you will avoid excessive wear and
damage to the machine.
Gear Lubrication
·The gear case must be lubricated regularly. It is advisable to
lubricate the gear case every 15 to 20 hours of operation. Use
Lithium machine grease.
·Unscrew the screw with the included hex key.
·If there is no grease in the opening, fill it with
approx. 5 g grease into the rear housing. Re-
tighten the opening with the hex key.
·Make sure not to overfill the gear housing.
·The brush cutter blade must be sharpened by a professional only.
Improperly sharpened or blunt cutting edges may cause the blade to break
or torn.

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Air Filter
When working with the machine for a long
period of time, clean the air filter. Dust and
pollen will clog the pores of the foam filter. A
damaged air filter must be replaced
Immediately, in order not to shorten the life of
the engine.
1. Unlock the cover and take off. Behind
the cover you will find the foam filter.
2. When the filter is clogged, wash the
filter in mild soapy water. Attention: Do
not use fuel or solvents for cleaning the filter.
3. Thoroughly dry the filter before re-attaching. Place the cover on the
motor housing and make sure to lock it in place.
Spark Plug
1. Wait for the engine to cool down completely.
2. Remove the spark plug cap from the spark plug and unscrew the spark
plug with the included spark plug wrench.
3. Use a new one of the same type and dimensions. Turn the spark plug
completely into the thread by hand. Avoid tilting the spark plug.
4. Tighten the spark plug with the supplied spark plug wrench.
When using a torque wrench, the tightening torque is 12 - 15 Nm. Insert
the spark plug cap correctly onto the spark plug.
If excessive wear occurs on the electrode or if the deposit is very hard,
replace the spark plug with the same type and size. A wrong carburetor,
wrong oil/fuel mixture, bad oil quality, old petrol mixture or a dirty air
filter can cause deposits on the spark plug, which can lead to starting
problems or malfunctions.
Clean the electrodes with a wire brush
and reset the gap to approx. 0.65 mm as
necessary.

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Always use the correct spark plug type. The use of wrong spark plugs can
damage the piston and the cylinder.
Protective Hood Thread Cutter
If the trim thread is no longer cut cleanly, sharpen the cutting edge on the
thread cutter with a file. File in one direction and at the specified angle.
Adjusting the Carburetor
The carburetor is factory set. Should a re-adjustment be necessary due to
changed operating conditions, have this adjustment carried out by a
specialist workshop, as an incorrect setting can lead to defects on the
machine.
Cleaning & Transport
Cleaning
Clean the housing of the machine carefully with a cloth and a brush. Do not
use abrasives or aggressive chemicals to clean the unit.
Remove grass and residue from the gear shaft and the protective hood.
Remove grass residue immediately, otherwise the engine will overheat due to
excessive friction. Grass residue inside the protective hood may be very
compact; use a suitable piece of wood or plastic to remove them.
Do not use cleaning agents, solvents or spiky objects to clean the machine.
Transport
Always turn the machine off when carrying or transporting it. Do not carry or
transport the machine with running cutting tool!
Always carry the unit with the attachments facing backwards.

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Technical Data
Maximum Engine Power 0.70 kW
Displacement 25.4 cm3
Motor Type 1E34F-3EB
Max. Speed of Cutting Tool Holder 9200 min-1
Engine Speed at recommended
max. Speed
of the Tool Holder for
-Brush Cutter Blade
-Spool
6900 min-1
6375 min-1
Engine Idle Speed 3000±300min-1
Dimensions Cutting Tools
-Brush Cutter Blade
-Spool
Ø255 x 25.4 x 1.4 mm
Ø2.4 mm, 4 m Length
Cutting Tool Area
-Brush Cutter Blade
-Spool
Ø255 mm
Ø430 mm
Fuel Tank Volume 350 ml
Specific Fuel Consumption at max.
Engine
Power
370 g/kWh
Fuel Specification Ratio 40 : 1 (Gasoline : Oil)
Oil Specification 2-Stroke Engine Oil
Weight ( w/o Fuel, Cutting Tool and
Protective Hood)
6.1/6.0 kg