Owner's Manual

MS 291 C-Q
English
47
N Use a screwdriver to remove the E-
clip (1)
N Remove the washer (2)
N Remove rim sprocket (3) (if so
equipped), clutch drum (4) and
needle cage (6).
N Inspect transport profile for rim
sprocket on the clutch drum (4) – if
there are also heavy signs of wear,
also replace the clutch drum
N Remove 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
Install spur chain sprocket / rim
sprocket
N Clean crankshaft stub and needle
cage and lubricate with STIHL
lubricant (special accessory)
N Slide needle cage onto the
crankshaft stub
N After refitting, turn the clutch drum
and/or spur chain sprocket approx.
1 full turn so that the carrier for the
oil pump drive engages
N Refit the rim sprocket – cavities
toward the outside
N Refit washer and E-clip on the
crankshaft
Cutting effortlessly with a correctly
sharpened chain
A properly sharpened chain slices
through wood effortlessly and requires
very little feed pressure.
Do not work with a dull or damaged
chain as it will increase the physical
effort required, produce unsatisfactory
results and a higher rate of wear.
N Clean the chain.
N Check the chain for cracks in the
links and damaged rivets.
N Replace any damaged or worn
parts of the chain and match the
new parts to the shape and size of
the original parts.
Carbide-tipped saw chains (Duro) are
particularly wear resistant. STIHL
recommends you have your chain
resharpened by a STIHL servicing
dealer.
001BA122 KN
1
2
4
5
6
1
2
3
6
Maintaining and
Sharpening the Saw Chain
It is absolutely essential to comply
with the angles and dimensions
specified below. If the saw chain is
incorrectly sharpened – and in
particular if the depth gauge is set
too low – there is a risk of
increased kickback of the saw,
with resulting risk of injury.