Owner's Manual

34
English / USA
SR 340, SR 420
1)
STIHL recommends a STIHL servicing dealer
Maintenance Chart
The following maintenance intervals apply to normal operating conditions only.
If your daily working time is longer than normal or operating conditions are difficult
(very dusty work area etc.), shorten the specified 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
Control handle Check operation
xx
Air filter
Clean
x
Replace
x
Pickup body in fuel tank
Check
x
Fit new filter
xx
Fuel tank Clean
x
Carburetor
Check idle setting
xx
Readjust idle
x
Spark plug
Readjust electrode gap
x
Replace after 100 hours of operation
Cooling air intakes Clean
x
Spark arresting screen in muffler
Check
x
Clean or replace
x
All accessible screws and nuts (not
adjusting screws)
Tighten
x
Container with hose Visual inspection (condition, leaks)
x
Metering unit Check
xx
Anti-vibration elements
Visual inspection
xxx
Have replaced by dealer
1)
x
Blower air intake screen
Check
xx
Clean
x
Safety labels Replace
x