English

NTake one turn of the rope off the rotor.

Replacing a broken rewind spring

NRemove the rope rotor.

The bits of spring must still be under tension and could fly apart when you take them out of the housing. To reduce the risk of injury, wear face protection and work gloves.

NUse a screwdriver to carefully remove the parts of the spring from the housing.

NLubricate the new spring with a few drops of non-resinous oil.

NPlace the new spring with retaining frame in position in the fan housing

– the anchor loop must engage the lug in the housing.

NApply suitable tools (screwdriver, punch, etc.) to the recesses (arrows) and push the spring into its seat – it slips out of the retaining frame in this process.

NReinstall the rope rotor, tension the rewind spring, fit the fan housing and secure in position.

Storing the Machine

For periods of 3 months or longer

NDrain and clean the fuel tank in a well ventilated area.

NDispose of fuel properly in accordance with local environmental requirements.

NRun the engine until the carburetor is dry – this helps prevent the carburetor diaphragms sticking together.

NRemove the saw chain and guide bar, clean them and spray with corrosion inhibiting oil.

NThoroughly clean the machine – pay special attention to the cylinder fins and air filter.

NIf you use a biological chain and bar lubricant, e.g. STIHL BioPlus, completely fill the chain oil tank.

NStore the machine in a dry, high or locked location, out of the reach of children and other unauthorized persons.

Checking and Replacing the Chain Sprocket

NRemove the chain sprocket cover, chain and guide bar.

NDisengage the chain brake: Pull hand guard toward the front handle.

Replace the chain sprocket

001BA120 KN

–after using two saw chains or sooner

–if the wear marks (arrows) on the sprocket are deeper than approx. 0.02 in (0.5 mm) since this would reduce the life of the chain. You can use a gauge (special accessory) to check the depth of the wear marks.

It is best to use two saw chains in rotation with one sprocket.

STIHL recommends the use of original STIHL sprockets to ensure correct operation of the chain brake.

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MS 192 T, MS 192 TC