Husqvarna 227L/LD, 225L, 240 L manual Final setting of the idling speed T, High speed needle

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MAINTENANCE

Final setting of the idling speed T

Adjust the idling speed with the screw T, if it is necessary to readjust. First turn the idle speed adjusting screw T clockwise until the cutting attachment starts to rotate/ move.

Then turn, counter-clock- wise until the cutting attachment stops. A correctly adjusted idle speed setting occurs when the engine runs smoothly in every position. It should also be good margin to the rpm when the cutting attachment starts to rotate/move.

CAUTION! Contact your servicing dealer, if the idle speed setting cannot be adjusted so that the cutting attachment stops. Do not use the machine until it has been properly adjusted or repaired.

High speed needle

 

H

 

The high speed needle

 

affects the machine’s power,

 

speed, temperature and fuel

 

consumption. A too lean

 

adjustment on the high

 

speed needle H (the high

 

speed needle H is screwed in

 

too much) gives a too high

 

speed resulting in engine

 

damage. Do not allow the

 

engine to run at full speed

 

for more than 10 seconds.

 

Apply full throttle and turn

 

the high speed needle H

 

slowly anticlockwise until

 

the engine runs unevenly.

 

The high speed needle H is

 

then turned slowly

 

clockwise a little until the

 

engine runs smoothly.

 

Note the engine should be

 

run unloaded when

H

adjusting the high speed

 

needle.

 

Therefore dismantle the cutting equipment, nut, support flange and disc drive before adjusting the high speed needle. The high speed needle is adjusted correctly when the machine ‘splatters’ a little . If the machine smokes heavily at the same time as it ‘splatters’ heavily the adjustment is too rich.

NOTE! For optimum setting of the carburetor, contact a qualified servicing dealer who has a revolution counter at his disposal.

Correctly adjusted carburetor

A correctly adjusted carburetor means that the machine accelerates without hesitation and the machine 4-cycles a little at max speed. Furthermore, the cutting attachment must not rotate/move at idling. A too lean adjusted low speed needle L may cause starting difficulties and bad acceleration.

A too lean adjusted high speed needle H gives lower power

=less capacity, bad acceleration and/or damage to the engine.

A too rich adjustment of the two speed needles L and H gives acceleration problems or too low working speed.

English – 17

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Contents 101 89 225L/LD 227L/LD 232L 240LMax 10000 rpm Symbol ExplanationSymbols Contents Personal protective equipment Safety InstructionsMachine‘s safety equipment Muffler Vibration damping systemCutting Equipment Locking nutMaintenance Trimmer head Cutting equipmentFuel safety General safety instructionsStart Transport and storageGrass trimming using the trimmer head Basic safety precautionsGeneral working instructions Basic working techniquesSweeping ClearingTrimming What is what on the trimmer? What is WHAT?Assembly of the trimmer head AssemblyDismantling Assembling other guards and cutting equipmentAssembling Fuelling Fuel HandlingFuel mixture Start and stop Start and StopControl before starting Carburetor MaintenanceHigh speed needle Final setting of the idling speed TCorrectly adjusted carburetor Muffler Cleaning the air filterCooling system Air filterSpark plug Maintenance scheduleAngle gear Two-part shaftTechnical data 225L/LD 227L/LD 232L Technical DataTechnical data 240L «*2¤5m¬ English 1998W51