English / USA
Chain
Pitch
type
Picco
3/8" P
Rapid
1/4"
Rapid
3/8"; 0.325" 0.24"
Rapid
0.404"
If groove depth is less than specified:
:
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.
42
Cleaning the Air Filter
Minimum
groove
depth
0.20"
(5.0 mm)
0.16"
(4.0 mm)
(6.0 mm)
0.28"
(7.0 mm)
Dirty air filters reduce engine power,
increase fuel consumption and make
starting more difficult.
Clean the air filter when there is a
noticeable loss of engine power:
:
Press down the interlock lever and
squeeze throttle trigger at the same
time, set the Master Control lever to
cold starter position l.
:
Turn the twist lock above the rear
handle 90° counterclockwise.
:
Lift off the shroud vertically.
:
Remove the filter upwards.
:
Wash the filter in a clean, non-
flammable solution (e.g. warm
soapy water) and then dry.
Always replace a damaged filter.
:
Reinstall the air filter.
MS 170, MS 180, MS 180 C