Maintenance And Care - Stihl SR 440 Instruction Manual

21 Maintenance and Care

STIHL recommends that you have servicing and
repair work carried out exclusively by an author‐
ized STIHL servicing dealer.
21 Maintenance and Care
The following intervals apply for normal operating
conditions. The specified intervals must be short‐
ened accordingly when working for longer than nor‐
mal or under difficult cutting conditions (extensive
dust, etc.).
Complete machine
Control handle
Air filter
Manual fuel pump
Carburetor
Spark plug
Intake port for cooling air Visual inspection
All accessible screws,
nuts and bolts (not
adjusting screws)
Container with hose
Strainer in solution con‐
tainer
Metering unit on blower
tube
Anti-vibration elements
Blower air intake shield
Safety information label
1
STIHL recommends a STIHL servicing dealer
0458-450-8721-C
Visual inspection (condi‐
tion, leaks)
Clean
Function test
Clean
replace
check
Have repaired by a spe‐
1)
cialist dealer
Check idle speed
Readjust idle speed
Adjust electrode gap
Replace after every 100
hours of operation
Clean
Tighten
Visual inspection (condi‐
tion, leaks)
Clean
Clean or replace
check
check
Have replaced by serv‐
1)
icing dealer
check
Clean
replace
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English
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