FC 91
English
25
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) XX
Clean X
Control handle Check operation XX
Air filter
Visual inspection XX
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)
XX
Fuel tank Clean XX
Carburetor
Check idle adjustment – the blade must
not rotate
XX
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
Spark arresting screen in muffler
Check XX
Clean or replace XX
All accessible screws and nuts (not adjust-
ing screws)
Retighten X
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