background image

15

BLADE REPLACEMENT

Refer to the ASSEMBLY section for blade re-

placement instructions and illustrations.

CARBURETOR ADJUSTMENT

WARNING:

Keep others away when

making idle speed adjustments. The trimmer

head will be spinning during most of this pro-

cedure. Wear your protective equipment and

observe all safety precautions. After making

adjustments, the trimmer head must not

move/spin at idle speed.

The carburetor has been carefully set at the

factory. Adjustments may be necessary if you

notice any of the following conditions:

S

Engine will not idle when the throttle is re-

leased.

S

The trimmer head moves/spins at idle speed.

Make adjustments with the unit supported so

the cutting attachment is off the ground and

will not make contact with any object. Hold the

unit by hand while running and making adjust-

ments. Keep all parts of your body away from

the cutting attachment and muffler.

Idle Speed Adjustment

Allow engine to idle. Adjust speed until engine

runs without trimmer head moving or spinning

(idle speed too fast) or engine stalling (idle

speed too slow).

S

Turn idle speed screw clockwise to in-

crease engine speed if engine stalls or dies.

S

Turn idle speed screw counterclockwise to

decrease engine speed if trimmer head

moves or spins at idle speed.

WARNING:

Recheck the idle speed

after each adjustment. The trimmer head

must not move or spin at idle speed to avoid

serious injury to the operator or others.

Idle Speed Screw

Air Filter Cover

If you require further assistance or are unsure

about performing this procedure, contact an

authorised service dealer.

STORAGE

WARNING:

Perform the following

steps after each use:

S

Allow engine to cool before storing or trans-

porting.

S

Store unit and fuel in a well ventilated area

where fuel vapors cannot reach sparks or

open flames from water heaters, electric

motors or switches, furnaces, etc.

S

Empty fuel tank before storing or transport-

ing the unit.

S

Store unit and fuel well out of the reach of

children.

S

Store unit with all guards in place. Position

unit so that any sharp object cannot acci-

dentally cause injury.

SEASONAL STORAGE

Prepare unit for storage at end of season or if

it will not be used for 30 days or more.

If your unit is to be stored for a period of time:

S

Clean the entire unit before lengthy storage.

S

Store in a clean dry area.

S

Lightly oil external metal surfaces.

ENGINE

S

Remove spark plug and pour 1 teaspoon of

40:1, 2-cycle engine oil (air cooled) through

the spark plug opening. Slowly pull the

starter rope 8 to 10 times to distribute oil.

S

Replace spark plug with new one of recom-

mended type and heat range.

S

Clean air filter.

S

Check entire unit for loose screws, nuts,

and bolts. Replace any damaged, broken,

or worn parts.

S

At the beginning of the next season, use

only fresh fuel having the proper petrol to oil

ratio.

OTHER

S

Do not store petrol from one season to

another.

S

Replace your petrol can if it starts to rust.

Summary of Contents for B 250 B

Page 1: ...structions et assurez vous de les avoir comprises Conservez les instructions pour r f rence ult rieure BETRIEBSANWEISUNG WICHTIGE INFORMATION Lesen Sie diese Hinweise zur Handhabung des Ger ts aufmerk...

Page 2: ...5 Shoulder harness clamp 6 Shoulder harness 7 Trimmer head 8 Line limiter blade 9 Combination shield 10 Shaft 11 Blade 12 Throttle trigger 13 Throttle lock out 14 Start throttle button 15 Starter han...

Page 3: ...rrow I Engine ON STOP Switch J Guaranteed sound power level according to Directive 2000 14 EC K Maximum rotational frequency of the spindle rpm SAFETY RULES WARNING When using gardening appliances bas...

Page 4: ...ngsafety leg guards is recommended S Always wear foot protection Do not go barefoot or wear sandals Stay clear of blade spinning line S Secure hair above shoulder length Secure or remove loose clothin...

Page 5: ...in daylight or good artificial light S Use only for jobs explained in this manual TRANSPORTING AND STORAGE S Allow the engine to cool secure unit before storing or transporting in vehicle S Empty fuel...

Page 6: ...y control the brushcutter This can result in injury to yourself or others Proper shoulder harness and handlebar adjust ments must be made with the engine complete ly stopped before using unit A well a...

Page 7: ...wdriver into aligned holes This will keep the shaft from turning while loosening the blade nut Remove blade nut by turning clockwise Remove the screwdriver Remove both wash ers and blade See INSTALLAT...

Page 8: ...ised area fits into the hole in the center of the blade 3 Slide the blade and retaining washer onto the shaft of the gearbox 4 Place the cupped washer onto the shaft Make sure the cupped side of the w...

Page 9: ...utch engagements overheat ing vapor lock power loss lubrication defi ciency deterioration of fuel lines gaskets and internal carburetor components etc Alcohol blended fuels will cause a high ab sorpti...

Page 10: ...r handle many times depending on how badly the unit is flooded If the unit still doesn t start refer to TROU BLESHOOTING TABLE OPERATING POSITION Boots Heavy Long Pants Eye Protection ALWAYS WEAR Cut...

Page 11: ...immer head about 8 cm above the ground and at an angle Allow the tip of the line to strike the ground around trees posts monuments etc This technique increases line wear Scalping MOWING Your trimmer i...

Page 12: ...allow engine to return to idle speed when not cut ting The blade should not turn while the en gine is running at idle If the bladeturns atidle do not use your unit Refer to the CARBURE TOR ADJUSTMENT...

Page 13: ...Air Filter REPLACE SPARK PLUG Replace the spark plug each year to ensure the engine starts easier and runs better Set spark plug gap at 0 6 mm Ignition timing is fixed and nonadjustable 1 Twist then p...

Page 14: ...l Ensure line snaps into position in the slot Slot 7 With your finger between the lines wrap the lines evenly and firmly around the spool in a clockwise direction 8 Position the lines in the guide slo...

Page 15: ...speed to avoid serious injury to the operator or others Idle Speed Screw Air Filter Cover If you require further assistanceor areunsure about performing this procedure contact an authorised service d...

Page 16: ...muffler outlet screen 5 Compression low Engine will not accelerate lacks power or dies under a load 1 Clean or replace air filter 2 Clean or replace plug and regap 3 Contact an authorised service deal...

Page 17: ...o electromagnetic compatibility 2004 108 EC andapplicable supplements and of 8 May 2000 relating to the noise emissions in the environment in accordance with Annex V of 2000 14 EC For information rela...

Page 18: ...ng to EN ISO 11806 and ISO 22867 m s2 Equipped with grass blade original left right 4 4 6 9 Equipped with trimmer head original left right 4 7 4 2 Note 1 Noise emissions in the environment measured as...

Reviews: