Stihl FB 131 Instruction Manual - Page 31

Maintenance and Care

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Maintenance and Care The following intervals apply to normal operating conditions only. If your daily working time is longer or operating conditions are difficult (very dusty work area, etc.), shorten the specified intervals accordingly. English before starting work after finishing work or daily after each refueling stop weekly monthly every 12 months if problem if damaged as required Complete machine Visual inspection (condition, leaks) Clean X X X Control handle Check operation X X Air filter Visual inspection Replace2) Manual fuel pump (if fitted) Pickup body in fuel tank Check X Have repaired by servicing dealer1) Have checked by servicing dealer1) Have replaced by servicing dealer1) Fuel tank Clean Carburetor Check idle adjustment - the blade must not rotate X X Adjust idle speed Spark plug Readjust electrode gap Replace after every 100 operating hours Cooling inlets Cylinder fins Visual inspection X Clean Have cleaned by servicing dealer1) Valve clearance If power is low or cranking effort very high, have valve clearance checked and, if necessary, adjusted by servicing dealer1) Check X Spark arresting screen in muffler Clean or replace All accessible screws and nuts (not adjusting screws) Retighten FB 131 X X X X X X X X X X X X X X X X X X X 29

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FB 131
English
29
Maintenance and Care
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, 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
as required
Complete machine
Visual inspection (condition, leaks)
X
X
Clean
X
Control handle
Check operation
X
X
Air filter
Visual inspection
X
X
Replace
2)
X
Manual fuel pump (if fitted)
Check
X
Have repaired by servicing dealer
1)
X
Pickup body in fuel tank
Have checked by servicing dealer
1)
X
Have replaced by servicing dealer
1)
X
X
Fuel tank
Clean
X
X
Carburetor
Check idle adjustment – the blade must
not rotate
X
X
Adjust idle speed
X
Spark plug
Readjust electrode gap
X
Replace after every 100 operating hours
Cooling inlets
Visual inspection
X
Clean
X
Cylinder fins
Have cleaned
by servicing dealer
1)
X
Valve clearance
If power is low or cranking effort very
high, have valve clearance checked
and, if necessary, adjusted by servicing
dealer
1)
X
X
Spark arresting screen in muffler
Check
X
X
Clean or replace
X
X
All accessible screws and nuts (not adjust
-
ing screws)
Retighten
X