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 chain sprocket cover, saw chain and guide bar.
NRelease chain brake – pull hand guard against the front handle
Fit new chain sprocket
001BA121 KN
–after use of two saw chains or earlier
–if the wear marks (arrows) are deeper than 0.02 in (0.5 mm) – otherwise the service life of the saw chain is reduced – use check gauge (special accessory) to test
Using two saw chains in alternation helps preserve the chain sprocket.
Use only STIHL original chain sprockets to help ensure reliable functioning of the chain brake.
English
5
6 2
1
4
3
6 2
1 | KN |
| 001BA122 |
NUse a screwdriver to remove the E- clip (1)
NRemove the washer (2)
NRemove rim sprocket (3) (if so equipped), clutch drum (4) and needle cage (6).
NInspect transport profile for rim sprocket on the clutch drum (4) – if there are also heavy signs of wear, also replace the clutch drum
NRemove clutch drum with integrated spur chain sprocket (5) (if so equipped) including needle cage (6) from the crankshaft – for powerheads with Quickstop Plus chain brake system, depress throttle trigger lockout beforehand
MS 250 | 45 |
