Maintaining And Sharpening The Saw Chain - Stihl MS 150 TC Instruction Manual

English
A locking strip is required to block the
piston in the cylinder when the chain
sprocket and clutch are removed and
installed as described below. The
locking strip is supplied as standard with
the replacement sprocket.
STIHL recommends the use of original
STIHL sprockets to ensure correct
operation of the chain brake.
Removing
2
Remove the spark plug boot (1).
N
Unscrew the spark plug (2).
N
Turn the clutch until the piston is
N
about bottom dead center.
3
Insert the locking strip (3) into the
N
cylinder through the spark plug
hole.
Turn the clutch clockwise until the
N
piston butts against the locking
strip.
38
Loosen the clutch hexagon
N
clockwise (left-hand thread).
Unscrew the clutch.
N
4
Pull the chain sprocket (4) and
N
needle cage (5) off the crankshaft.
Clean the crankshaft stub and
N
needle cage, and lubricate with
STlHL grease (special accessory).
Installing
Push the needle cage and chain
N
sprocket onto the crankshaft.
Screw the clutch onto the
N
crankshaft (counterclockwise).
Tighten down the clutch to a torque
N
of 15 Nm.
Remove the locking strip from the
N
cylinder. Fit the spark plug and
tighten it down firmly.
Refit boot on the spark plug.
N
Maintaining and Sharpening
the Saw Chain
Sawing effortlessly with a properly
sharpened saw chain
A properly sharpened saw chain cuts
through wood effortlessly even with very
little pushing.
Never use a dull or damaged saw chain
– this leads to increased physical strain,
increased vibration load, unsatisfactory
cutting results and increased wear.
Clean the saw chain
N
Check the saw chain for cracks and
N
damaged rivets
Replace damaged or worn chain
N
components and adapt these parts
to the remaining parts in terms of
shape and level of wear – rework
accordingly
Carbide-tipped (Duro) saw chains are
especially wear-resistant. For an optimal
sharpening result, STIHL recommends
STIHL servicing dealers.
WARNING
Compliance with the angles and
dimensions listed below is absolutely
necessary. An improperly sharpened
saw chain – especially depth gauges
that are too low – can lead to increased
kickback tendency of the chain saw –
risk of injury!
MS 150 TC