Stihl MS170 User Manual

MS 170, MS 170 C, MS 180, MS 180 C
English
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N turn the adjusting wheel (4) a little
until the chain sprocket cover can
be slid completely against the
engine housing
N Swing grip (5) into position (until it
engages)
N Fit wing nut and tighten lightly
N Next step: see "Tensioning the Saw
Chain"
Retensioning during cutting work:
N Switch off the engine.
N Loosen the nuts.
N Hold the bar nose up.
N Use a screwdriver to turn the
tensioning screw (1) clockwise until
the chain fits snugly against the
underside of the bar.
N While still holding the bar nose up,
tighten down the nuts firmly.
N Go to "Checking Chain Tension".
A new chain has to be retensioned more
often than one that has been in use for
some time.
N Check chain tension frequently –
see chapter on "Operating
Instructions".
Retensioning during cutting work:
N Shut off the engine.
N Pull out the hinged clip and loosen
the wingnut.
N Turn the adjusting wheel (1)
clockwise as far as stop.
N Tighten down the wingnut (2) firmly
by hand.
N Fold down the hinged clip.
N Go to "Checking Chain Tension"
A new chain has to be retensioned more
often than one that has been in use for
some time.
N Check chain tension frequently –
see chapter on "Operating
Instructions".
Tensioning the Saw Chain
(front chain tensioner)
1
143BA045 KN
Tensioning the Saw Chain
(quick chain tensioner)
1
2
001BA112 KN

Stihl MS170 Specifications

General

Displacement	30.1 cc
Powerhead Weight	3.9 kg (8.6 lbs)
Sound Pressure Level	100 dB(A)
Engine Power	1.7 bhp
Weight	8.6 lbs
Fuel Capacity	8.5 oz
Chain Oil Capacity	145 ml (4.9 fl oz)
Oilomatic Chain Pitch	3/8 in
Chain Pitch	3/8 in
Guide Bar Length	30-35 cm (12-14 in.)