Stihl MS 390 Instruction Manual

53MS 290, MS 310, MS 390
English / USA
1)
STIHL recommends that this work be done by
a STIHL servicing dealer
2)
Firmly tighten cylinder base screws of
professional saws (3.4 kW or more) after 10 to
20 hours of operation
3)
not in all versions, market-specific
Please note that the following maintenance intervals apply for normal operating conditions only.
If your daily working time is longer than normal or cutting 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 as required
Carburetor
Check idle adjustment – chain must not rotate
XX
Readjust idle
X
Spark plug
Readjust electrode gap
X
Replace after about 100 operating hours
All accessible screws and nuts
(not adjusting screws)
2)
Retighten
X
Spark arresting screen
3)
in muffler
Inspect
X
Clean or replace
X
Chain catcher
Check
X
Replace
X
Safety label Replace
X

Stihl MS 390 Specifications

General

Brand	Stihl
Model	MS 390
Category	Chainsaw
Language	English