Husqvarna K970 manual Carburetor, Starter, Adjusting the idle speed, Checking the starter cord

Page 24

MAINTENANCE

Press on the belt tensioner with your thumb to tension the belt. Now tighten the screw holding the belt tensioner.

Fit the belt cover.

Carburetor

The carburettor is equipped with fixed needles to ensure the machine always receives the correct mixture of fuel and air. When the engine lacks power or accelerates poorly, do the following:

Check the air filter and replace if necessary. When this does not help, contact an authorised service workshop.

Adjusting the idle speed

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.

Start the engine and check the idling setting. When the carburettor is set correctly the cutting blade should be still while engine is idling.

Adjust the idle speed using the T screw. When an adjustment is necessary, first turn the screw clockwise until the blade starts to rotate. Now turn the screw anti- clockwise until the blade stops rotating.

T

Rec. idle speed: 2700 rpm

Starter

WARNING! When the recoil spring is wound

!up in the starter housing it is under tension and can, if handled carelessly, pop out and cause personal injury.

Always be careful when changing the recoil spring or the starter cord. Always wear protective goggles.

Checking the starter cord

Loosen the screws that hold the starter against the crankcase and remove the starter.

Pull the cord out about 30 cm and lift it into the cut-out in the periphery of the starter pulley. When the cord is intact: Release the spring tension by letting the pulley rotate slowly backwards.

Changing a broken or worn starter cord

Remove any remnants of the old starter cord and check that the return spring works. Insert the new starter cord through the hole in the starter housing and in the cord pulley.

24 – English

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Contents Ring KEY to Symbols Symbols on the machineExplanation of warning levels Contents Features PresentationDear customer What is WHAT? What is what on the power cutter?MACHINE´S Safety Equipment Stop switchGeneral Throttle lockoutOff, and the stop switch in Stop position Vibration damping systemMuffler Checking the vibration damping systemBlades Transport and storage Assembling and Adjustments Fitting the bladeWater hose Fuel Handling FuelFueling Long-term storage General safety precautions OperatingProtective equipment Work area safety Basic working techniquesCutting depth Small workCutting holes How to aviod kickback KickbackGeneral rules Pinching kickbackStarting and Stopping Before startingStarting Start the engineStopping Maintenance Maintenance scheduleFunctional inspection Cleaning Functional inspectionSupport rollers Replacing the support rollersDrive wheel Drive beltReplacing the drive wheel Tensioning the drive beltAdjusting the idle speed CarburetorStarter Checking the starter cordFuel system Reconstructing the blade Air filterDrive gear, clutch Replacing the air filterTrouble Shooting Troubleshooting scheduleTechnical Data Technical dataCutting equipment Federal Emission Control Warranty Statement Your Warranty Rights and ObligationsMaintenance Statement Page Original instructions 1152681-95 2012-01-18 rev