Taking Care Of The Guide Bar; Air Filter System - Stihl MS 441 C-MQ Instruction Manual

Taking Care of the Guide Bar

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1
Turn the guide bar over – every time
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you sharpen the chain and every
time you replace the chain – this
helps avoid one-sided wear,
especially at the nose and
underside of the bar.
Regularly clean the oil inlet hole (1),
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the oilway (2) and the bar groove
(3).
Measure the groove depth – with the
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scale on the filing gauge (special
accessory) – in the area used most
for cutting.
MS 441 C-MQ
Chain Chain pitch
type
Picco 1/4" P
Rapid 1/4"
Picco 3/8" P
Rapid 3/8"; 0.325"
Rapid 0.404"
If groove depth is less than specified:
Replace the guide bar.
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The drive link tangs will otherwise
scrape along the bottom of the groove –
the cutters and tie straps will not ride on
the bar rails.
3
Minimum

Air Filter System

groove depth
0.16" (4.0 mm)
The air filter system can be adapted to
0.16" (4.0 mm)
different operating conditions by the
0.20" (5.0 mm)
insertion of different air filters.
0.24" (6.0 mm)
Retrofitting is simple.
0.28" (7.0 mm)
HD2-Filter (black filter frame. folded
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filter fabric) Universal filter for
almost all conditions of use (from
very dusty to wintry conditions etc.)
Wire mesh filter (green filter
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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 conditions.
When dry, STIHL filters attain a long
service life.
Always use STIHL filters dry
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English
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