28
English / USA
BR 340, BR 340 L, BR 420, BR 420 C
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 (conditon, leaks)
xx
Clean
x
Control handle Check operation
xx
Air filter
Clean
x
Replace
x
Filter in fuel tank
Check
x
Replace
xx
Fuel tank Clean
x
Carburetor
Check idle setting
xx
Readjust idle
x
Spark plug Readjust electrode gap
x
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
Anti-vibration elements
Visual inspection
x
Have replaced by STIHL dealer
xx
Blower air intake screen
Check
xx
Clean
x
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