Owner's Manual

MS 441 C-M
English
37
If groove depth is less than specified:
N Replace the guide bar.
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.
The air filter system can be adapted to
different operating conditions by the
insertion of different air filters.
Retrofitting is simple.
N HD2 filter (black filter frame, pleated
filter fabric) for normal, dry or
extremely dusty operating
environments
N HD air filter (black filter housing)
with felt prefilter for normal, dry or
very dusty operating environments
N Wire mesh air filter (green filter
housing) for extreme winter
conditions (e. g., powdered or flying
snow or frost formation)
When dry, STIHL filters attain a long
service life.
N Always use STIHL filters dry
Fouled air filters will impair engine
performance, increase fuel consumption
and make the machine more difficult to
start.
Chain type Pitch Minimum
groove
depth
Picco 3/8" P 0.20"
(5.0 mm)
Rapid 1/4" 0.16"
(4.0 mm)
Rapid 3/8"; 0.325" 0.24"
(6.0 mm)
Rapid 0.404" 0.28"
(7.0 mm)
Air Filter System
001BA210 KN
001BA211 KN
001BA212 KN