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English

 – 21

MAINTENANCE

Fine adjustment of the idle speed T

Adjust the idle speed using the idle adjustment screw T, if it is 
necessary to readjust. First turn the idle adjustment screw T 
clockwise until the cutting attachment starts to rotate. Then 
turn the screw anticlockwise until the cutting attachment 
stops. The idle speed is correctly adjusted when the engine 
will run smoothly in every position. The idle speed should also 
be well below the speed at which the cutting attachment starts 
to rotate.

CAUTION! 

 If the idle speed cannot be adjusted so that the 

cutting attachment stops, contact your dealer/service 
workshop. Do not use the machine until it has been correctly 
adjusted or repaired.

High speed jet H

Note that the engine should not be under load when you 
adjust the high speed jet H. You should therefore remove the 
cutting attachment, nut, support 

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ange and drive disc before 

adjusting the high speed jet H. The high speed jet H affects 
the engine power, speed, temperature and fuel consumption. 
If the high speed jet H is set too lean (screwed in too far) the 
engine speed will be too high and cause engine damage. Do 
not let the engine run at full speed for more than 10 seconds.

Apply full throttle and turn the high speed jet H very slowly 
clockwise until the engine slows down. Then turn the high 
speed jet H very slowly anticlockwise until the engine starts to 
run unevenly. Now turn the high speed jet H slowly clockwise 
a little way until the engine runs smoothly. 

The high speed jet H is adjusted correctly when the machine 
burbles a little. If the machine races then the setting is too 
lean. If the engine produces a lot of smoke and burbles a lot 
then the setting is too rich.

CAUTION! For optimum adjustment of the carburettor, 
contact a quali

fi

ed dealer/service workshop that has a 

revolution counter at their disposal. 

Correctly adjusted carburetor

When the carburetor is correctly adjusted the machine will 
accelerate without hesitation and burble a little at maximum 
speed. It is also important that the cutting attachment does 
not rotate at idle. If the low speed jet L is set too lean it may 
cause starting dif

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culties and poor acceleration.

If the high speed jet H is set too lean it will result in less power, 
less performance, poor acceleration and/or damage to the 
engine. If both the L and H jets are set too rich it will results in 
acceleration problems or too low a working speed.

Muf

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er

CAUTION! 

 Some muf

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ers are 

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tted with a catalytic 

converter. See chapter on Technical data to see whether your 
machine is 

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tted with a catalytic converter.

The muf

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er is designed to reduce the noise level and to direct 

the exhaust gases away from the operator. The exhaust 
gases are hot and can contain sparks, which may cause 

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re 

if directed against dry and combustible material.

Some muf

fl

ers are equipped with a special spark arrestor 

mesh. If your machine has this type of muf

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er, you should 

clean the mesh at least once a week. This is best done with a 
wire brush.

On muf

fl

ers without a catalytic converter the mesh should be 

cleaned weekly, or replaced if necessary. On muf

fl

ers 

fi

tted 

with a catalytic converter the mesh should be checked, and if 
necessary cleaned, monthly. 

If the mesh is damaged it 

should be replaced.

If the mesh is frequently blocked, this can be a sign that the 
performance of the catalytic converter is impaired. Contact 
your dealer to inspect the muf

fl

er. A blocked mesh will cause 

the machine to overheat and result in damage to the cylinder 
and piston.

CAUTION! 

 Never use a machine with a defective muf

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er.

H

!

WARNING! Muf

fl

ers 

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tted with catalytic 

converters get very hot during use and 
remain so for some time after stopping. This 
also applies at idle speed. Contact can result 
in burns to the skin. Remember the risk of 

fi

re!

Содержание GC 2125

Страница 1: ...GT 2125 GC 2125 Operator s manual EPA Please read the operator s manual carefully and make sure you understand the instructions before using the machine ...

Страница 2: ... metres Machines fitted with saw blades or grass blades can be thrown violently to the side when the blade comes into contact with a fixed object The blade is capable of amputating an arm or leg Always keep people and animals at least 15 metres from the machine Arrows which show limits for handle positioning Always wear approved protective gloves Wear sturdy non slip boots Only use non metallic fl...

Страница 3: ...4 Fitting the blade guard combination guard grass blade and grass cutter 14 Fitting other guards and cutting attachments 15 Fitting the trimmer guard and trimmer head 15 FUEL HANDLING Fuel 16 Fueling 17 STARTING AND STOPPING Check before starting 18 Starting and stopping 18 MAINTENANCE Carburetor 20 Muffler 21 Cooling system 22 Bevel gear 22 Air filter 22 Spark plug 23 Maintenance schedule 23 TECH...

Страница 4: ...When you press the lock A i e when you grasp the handle it releases the throttle control B When you release the handle the throttle control and the throttle lock both move back to their original positions This movement is controlled by two independent return springs This arrangement means that the throttle control is automatically locked at the idle setting Stop switch Use the stop switch to switc...

Страница 5: ...des and grass cutters are intended for cutting coarse grass A trimmer head is intended for trimming grass Locking nut A locking nut is used to secure some types of cutting attachment WARNING Overexposure to vibration can lead to circulatory damage or nerve damage in people who have impaired circulation Contact your doctor if you experience symptoms of overexposure to vibration These symptoms inclu...

Страница 6: ...re the engine stops when you move the stop switch to the stop setting Cutting attachment guard Ensure that the guard is undamaged and is not cracked Replace the guard if it has been exposed to impact or is cracked Always use the recommended guard for the cutting attachment you are using See chapter on Technical data Vibration damping system Regularly check the vibration damping units for cracks or...

Страница 7: ... file gauge An incorrectly sharpened or damaged blade increases the risk of accidents 3 Check the cutting attachment for damage or cracks A damaged cutting attachment should always be replaced Locking nut When fitting tighten the nut in the opposite direction to the direction of rotation of the cutting attachment To remove it undo the nut in the same direction as the cutting attachment rotates CAU...

Страница 8: ...he correct length To increase the life of the cord it can be soaked in water for a couple of days This will make the line tougher so that it lasts longer IMPORTANT This section describes how to choose and maintain your cutting equipment in order to Reduce the risk of blade thrust Obtain maximum cutting performance Extend the life of cutting equipment Only use cutting attachments with the guards we...

Страница 9: ...trical relays switches or boilers When storing and transporting fuel always use approved containers intended for this purpose When storing the machine for long periods the fuel tank must be emptied Contact your local gas station to find out where to dispose of excess fuel IMPORTANT The machine is only designed for trimming grass grass clearing and or forestry clearing The only accessories you can ...

Страница 10: ... for example along verges or around trees Grass clearing using a grass blade A grass blade is used for all types of tall or coarse grass The grass is cut down with a sideways swinging movement where the movement from right to left is the clearing stroke and the movement from left to right is the return stroke Let the left hand side of the blade between 8 and 12 o clock do the cutting If the blade ...

Страница 11: ...normal lawn mower Keep the cord parallel to the ground when cutting Avoid pressing the trimmer head against the ground as this can ruin the lawn and damage the tool Do not allow the trimmer head to constantly come into contact with the ground during normal cutting Constant contact of this type can cause damage and wear to the trimmer head Sweeping The fan effect of the rotating cord can be used fo...

Страница 12: ...le control 8 Stop switch 9 Throttle lock 10 Cylinder cover 11 Starter handle 12 Fuel tank 13 Choke control 14 Air purge 15 Air filter cover 16 Handle adjustment 17 Locking nut 18 Support flange 19 Drive disc 20 Socket spanner 21 Operator s manual EPA 22 Allen key 23 Locking pin 24 Support cup 25 Blade 26 Transport guard 27 J handle 28 Support eyes for harness 29 Harness ...

Страница 13: ...cer into the slot in the loop handle Fit the nut knob and screw Do not overtighten Attach the J handle to the loop handle using the three screws as shown Now adjust the trimmer to give a comfortable working position Tighten the bolt knob Fitting blades and trimmer heads When fitting the cutting attachment it is extremely important that the raised section on the drive disc support flange engages co...

Страница 14: ...pposite direction to the direction of rotation Caution left hand thread Fit the bottom half of the trimmer head K to the cover I by pressing them together with the cut outs on the bottom half aligned with the catches on the cover To dismantle follow the instructions in the reverse order Fitting the blade guard combination guard grass blade and grass cutter GC 2125 Hook the blade guard combination ...

Страница 15: ...onding hole in the gear housing Insert the locking pin C in the hole to lock the shaft Screw on the trimmer head plastic blades H in the opposite direction to the direction of rotation To dismantle follow the instructions in the reverse order Fitting the trimmer guard and trimmer head GT 2125 Guard Fit the guard as shown in the diagram Tighten securely Trimmer head Fit the dust cup on the shaft Th...

Страница 16: ...uous high revs a higher octane rating is recommended Two stroke oil For the best results and performance use JONSERED two stroke oil which is specially formulated for our two stroke engines Mixture 1 50 2 Never use two stroke oil intended for water cooled outboard engines sometimes referred to as outboard oil Never use oil intended for four stroke engines Mixing Always mix the gasoline and oil in ...

Страница 17: ...the following precautions will lessen the risk of fire Do not smoke or place hot objects near fuel Always shut off the engine before refuelling Always stop the engine and let it cool for a few minutes before refuelling When refuelling open the fuel cap slowly so that any excess pressure is released gently Tighten the fuel cap carefully after refuelling Always move the machine away from the refuell...

Страница 18: ...start position Primer bulb Press the primer bulb repeatedly until fuel begins to fill the bulb The bulb need not be completely filled Choke Set the choke control in the choke position Hold the body of the machine on the ground using your left hand CAUTION Not with your foot Grip the starter handle slowly pull out the cord with your right hand until you feel WARNING The complete clutch cover and sh...

Страница 19: ...he throttle will automatically disengage from the start setting CAUTION Do not pull the starter cord all the way out and do not let go of the starter handle when the cord is fully extended This can damage the machine CAUTION Do not put any part of your body in marked area Contact can result in burns to the skin or electrical shock if the spark plug cap has been damaged Always use gloves Do not use...

Страница 20: ...ied out by a skilled technician CAUTION If the cutting attachment rotates when the engine is idling the idle adjustment screw T should be turned anti clockwise until the cutting attachment stops Rec idle speed 2700 rpm Recommended max speed See the Technical data section Fine adjustment When the machine has been run in the carburetor should be finely adjusted The fine adjustment should be carried ...

Страница 21: ...kshop that has a revolution counter at their disposal Correctly adjusted carburetor When the carburetor is correctly adjusted the machine will accelerate without hesitation and burble a little at maximum speed It is also important that the cutting attachment does not rotate at idle If the low speed jet L is set too lean it may cause starting difficulties and poor acceleration If the high speed jet...

Страница 22: ...power Unnecessary wear to engine parts Excessive fuel consumption Clean the filter every 25 hours or more regularly if conditions are exceptionally dusty Cleaning the air filter Remove the air filter cover and take out the filter Wash it clean in warm soapy water Ensure that the filter is dry before refitting it An air filter that has been in use for a long time cannot be cleaned completely The fi...

Страница 23: ...erly centered sharp and without cracks Check that the trimmer head is undamaged and not cracked Replace the trimmer head if necessary A non balanced blade trimmer head induces heavy vibrations that may damage the machine Check that the blade nut is sufficiently tightened Check that the transport guard for the blade is intact and that it can be secured correctly Check that nuts and screws are tight...

Страница 24: ...ISO 8893 kW rpm 0 9 9000 0 9 9000 Catalytic converter muffler No No Speed regulated ignition system Yes Yes Ignition system Manufacturer type of ignition system WalbroMB SEM AM49 WalbroMB SEM AM49 Spark plug NGK BPMR 7A Champion RCJ 7Y NGK BPMR 7A Champion RCJ 7Y Electrode gap inch mm 0 02 0 5 0 02 0 5 Fuel and lubrication system Manufacturer type of carburetor Zama C1Q Zama C1Q Fuel tank capacity...

Страница 25: ...H II 503 93 42 04 503 97 71 03 Auto32 503 93 42 04 503 97 71 03 S35 503 93 42 04 503 97 71 03 Tap n Go 35 503 93 42 04 503 97 71 03 Grass blade grass cutter Grass 255 4 503 93 42 04 Grass 255 8 Ø 255 8 teeth 503 93 42 04 Plastic blades Polytrim 503 93 42 04 503 97 71 03 WARNING Grass blades or grass knives may only be used when the J handle is fitted See instructions under the heading Assembling t...

Страница 26: ...each subsequent purchaser that the engine is free from defects in materials and workmanship which cause the failure of a warranted part for a period of two years WHAT IS COVERED REPAIR OR REPLACEMENT OF PARTS Repair or replacement of any warranted part will be performed at no charge to the owner at an approved Jonsered servicing dealer If you have any questions regarding your warranty rights and r...

Страница 27: ...1 Trimmy H II 2 3 4 5 6 7 8 9 7 5 m 25 2 0 2 4 mm 080 095 1 2 15 cm 6 3 7 m 12 15 cm 6 ...

Страница 28: ... Clic 1 2 3 5 6 7 10 11 8 5 m 28 4 8 4 2 m 14 2 4 2 7 mm 095 106 10 cm 4 6 15 cm S35 ...

Страница 29: ...1 2 4 3 2 4 2 7 mm 095 106 4 25 m 14 4 25 m 14 B 6 15 cm A 6 15 cm S35 5 ...

Страница 30: ... z x 3 5U z x 3 5U Tap N Go 35 Clic 1 2 3 5 6 7 9 8 5 m 28 4 8 4 3 m 14 2 4 2 7 mm 095 106 10 cm 4 6 15 cm ...

Страница 31: ...1 Auto 32 2 3 4 5 6 7 8 9 10 4 0 m 13 2 4 mm 095 2 0 m 6 5 6 6 15 cm 15 cm ...

Страница 32: ... z x 3 5U 2004 06 14 z x 3 5U 1088931 95 ...

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