Stihl 441 Cm Manual

MS 441 C-M
English
39
As soon as the engine runs
NIf the engine was started in the start 
position } Press down trigger 
lockout and the pull the throttle 
trigger (2) at the same time – the 
Master Control lever (1) moves to 
the run position F and the engine 
settles down to idling speed.  
NPull the hand guard back toward the 
front handle.
The chain brake is now disengaged – 
your saw is ready for operation.
NOTICE
Always disengage chain brake before 
accelerating the engine. High revs with 
the...

MS 441 C-M
English
40 Chain at operating temperature
The chain stretches and begins to sag. 
The drive links must not come out of the 
bar groove on the underside of the bar – 
the chain may otherwise jump off the 
bar. Retension the chain – see 
"Tensioning the Saw Chain".
NOTICE
The chain contracts as it cools down. If it 
is not slackened off, it can damage the 
crankshaft and bearings.
After a long period of full-throttle 
operation
After a long period of full-throttle 
operation, allow...

MS 441 C-M
English
41 Oil pump with increased delivery rate 
(available option)
The oil pump with increased delivery 
rate can be identified by the groove (2) 
in the adjusting screw.
With this oil pump, in setting rangea, the 
oil tank can run empty before the fuel 
tank, thus causing the saw chain to run 
dry.
Nin setting rangea, fill the fuel tank 
only half full or refill the oil tank 
when the fuel tank is approximately 
half emptyNTurn the guide bar over – every time 
you sharpen the chain and...

MS 441 C-M
English
42 The air filter system can be adapted to 
different operating conditions by the 
insertion of different air filters. 
Retrofitting is simple.
NHD2-Filter (black filter frame. folded 
filter fabric) Universal filter for 
almost all conditions of use (from 
very dusty to wintry conditions etc.)
NWire mesh filter (green filter 
housing) Use in extra-ordinary 
conditions e.g. extremely wintry 
conditions of use - such as powder 
snow or drift snow. Rather 
unsuitable in very dusty...

MS 441 C-M
English
43 If there is a noticeable loss of engine 
power:
NWash the filter in STIHL special-
purpose cleaner (special 
accessory) or a clean, non-
flammable cleaning liquid (e.g., 
warm soapy water) – rinse the filter 
from inside to out under a water jet 
– do not use high-pressure cleaners
NDry all filter parts – do not expose to 
extreme heat
NDo not oil the filter
NReinstall filterExhaust emissions are controlled by the 
design of the fundamental engine 
parameters and components (e.g....

MS 441 C-M
English
44 In some countries, the muffler is fitted 
with a spark arresting screen.
NIf engine performance deteriorates, 
check the spark arresting screen in 
the muffler
NLet the muffler cool down
NRemove screw (1)
NPull out spark arresting screen (2)
NClean the dirty spark arresting 
screen, replace if damaged or 
heavily carbonized
NRefit the spark arresting screen
NInsert and tighten down the screwIf the engine is down on power, difficult 
to start or runs poorly at idling speed, 
first...

MS 441 C-M
English
45
WARNING
To reduce the risk of fire and burn injury, 
use only spark plugs authorized by 
STIHL. Always press the spark plug 
boot (1) snugly onto the spark plug 
terminal (2).
Do not use a spark plug with a 
detachable SAE adapter terminal (3). 
Arcing may occur that could ignite 
combustible fumes and cause a fire. 
This can result in serious injuries or 
damage to property. 
NOnly use resistor type spark plugs 
with solid, non-threaded terminals
Installing the spark plug
NScrew...

MS 441 C-M
English
46 NRemove chain sprocket cover, saw 
chain and guide bar.
NRelease chain brake – pull hand 
guard against the front handle
Fit new chain sprocket
–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...

MS 441 C-M
English
47 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.
NClean the saw chain
NCheck the saw chain for cracks and 
damaged rivets
NReplace damaged or worn chain 
components and adapt these parts 
to the remaining parts in terms of...

MS 441 C-M
English
48
File holder
NUse a file holder
Always use a file holder (special 
accessory, see table "Sharpening tools") 
when sharpening saw chains by hand. 
File holders have markings for the 
sharpening angle.
Use only special saw chain files! Other 
files are unsuitable in terms of shape 
and type of cutting.
To check the angles
STIHL filing gauge (special accessory, 
see table "Sharpening tools") – a 
universal tool for checking sharpening 
and side plate angles, depth gauge...