Stihl MS 311 User Manual

MS 311, MS 391
English
48
Cooling inlets Clean X
Cylinder fins Clean XX
Preseparator port and carburetor body Clean X
"Carb preheat" shutter and preheating port Clean (winter operation only) X
Carburetor
Check idle adjustment – chain must not
rotate
XX
Readjust idle X
Spark Plug
Readjust electrode gap X
Replace after every 100 operating hours
All accessible screws and nuts (not adjust-
ing screws)
3)
Retighten X
Sparl arresting screen
4)
in muffler
Check X
Clean or replace X
Combustion chamber
Decoke after first 139 hours of operat-
ing, then every 150 hours
X
Chain catcher
Check X
Replace X
Safety labels Replace X
1)
STIHL recommends a STIHL servicing dealer.
2)
see chapter on "Chain Brake"
3)
Firmly tighten down the cylinder base screws of professional saws (3.4 kW or more) after 10 to 20 hours of operation.
4)
not in all versions, market-specific
The following intervals apply to normal operating conditions only. If your daily work-
ing 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

Stihl MS 311 Specifications

General

Oil tank capacity	0.348 L
Fuel tank capacity	0.6 L
Power source	Gasoline

Weight and Dimensions

Weight	6200 g