Stihl MS 150 C-E Instruction Manual - Page 41

Maintaining and Sharpening, the Saw Chain

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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 N Remove the spark plug boot (1). N Unscrew the spark plug (2). N Turn the clutch until the piston is about bottom dead center. 3 N Insert the locking strip (3) into the cylinder through the spark plug hole. N Turn the clutch clockwise until the piston butts against the locking strip. 3006BA016 KN 3006BA015 KN N Loosen the clutch hexagon clockwise (left-hand thread). N Unscrew the clutch. 4 N Pull the chain sprocket (4) and needle cage (5) off the crankshaft. N Clean the crankshaft stub and needle cage, and lubricate with STlHL grease (special accessory). Installing N Push the needle cage and chain sprocket onto the crankshaft. N Screw the clutch onto the crankshaft (counterclockwise). N Tighten down the clutch to a torque of 15 Nm. N Remove the locking strip from the cylinder. Fit the spark plug and tighten it down firmly. N Refit boot on the spark plug. 3006BA018 KN 3006BA017 KN English 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. N Clean the saw chain N Check the saw chain for cracks and damaged rivets N Replace damaged or worn chain 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 39

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MS 150 TC
English
39
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
N
Remove the spark plug boot (1).
N
Unscrew the spark plug (2).
N
Turn the clutch until the piston is
about bottom dead center.
N
Insert the locking strip (3) into the
cylinder through the spark plug
hole.
N
Turn the clutch clockwise until the
piston butts against the locking
strip.
N
Loosen the clutch hexagon
clockwise (left-hand thread).
N
Unscrew the clutch.
N
Pull the chain sprocket (4) and
needle cage (5) off the crankshaft.
N
Clean the crankshaft stub and
needle cage, and lubricate with
STlHL grease (special accessory).
Installing
N
Push the needle cage and chain
sprocket onto the crankshaft.
N
Screw the clutch onto the
crankshaft (counterclockwise).
N
Tighten down the clutch to a torque
of 15 Nm.
N
Remove the locking strip from the
cylinder. Fit the spark plug and
tighten it down firmly.
N
Refit boot on the spark plug.
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.
N
Clean the saw chain
N
Check the saw chain for cracks and
damaged rivets
N
Replace damaged or worn chain
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
!
2
3006BA015 KN
3006BA016 KN
3
3006BA017 KN
3006BA018 KN
4
Maintaining and Sharpening
the Saw Chain