Stihl MS 391 Safety Manual

Chain Saw Safety Manual
English
14
Maintenance and Care
The following maintenance intervals apply for normal operating conditions only. If your daily working
time is longer or operating conditions are difficult (very dusty work area, resin-rich wood, tropical
wood, etc.), shorten the specified intervals accordingly. If you only use the saw occasionally, extend
the intervals accordingly.
before starting work after finishing work or daily after each refueling stop weekly monthly every 12 months if problem if damaged if required
Complete machine
Visual inspection (condition, leaks) XX
Clean X
Throttle trigger, trigger interlock, choke lever, stop
switch, Master Control lever (depending on
version)
Check operation XX
Chain brake
Check operation XX
Have checked by dealer
1)
X
Pickup body/filter in fuel tank
Check X
Clean, replace filter element XX
Replace XXX
Fuel tank Clean X
Chain oil tank Clean X
Chain Lubrication Check X
Saw chain
Inspect, also check sharpness XX
Check chain tension XX
Sharpen X
Guide bar
Check (wear, damage) X
Clean and turn over X
Deburr X
Replace XX
Chain sprocket Check X
Air filter
Clean XX
Replace X
Anti-vibration elements
Check XX
Have replaced by dealer
1)
X

Stihl MS 391 Specifications

General

Motor type	2-stroke motor
Chain gauge	1.6 mm
Chain pitch	3/8 \
Automatic oiling	Yes
Oil tank capacity	0.35 L
Fuel tank capacity	0.6 L
Engine displacement	64.1 cm³
Engine power	4.4 hp
Power source	Gasoline

Weight and Dimensions

Weight	6200 g