Maintenance Chart - Stihl FS 90 Instruction Manual
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Also See for FS 90:
- Instruction manual (116 pages) ,
- Manual (120 pages) ,
- Instruction manual (48 pages)
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English / USA
Maintenance Chart
The following maintenance operations apply to normal operating conditions.
If working conditions are difficult (very dusty work area, etc.) or your daily working
time is longer than normal, shorten the specified intervals accordingly.
Complete machine
Control handle
Air filter
Pickup body in fuel tank
Fuel tank
Carburetor
Spark plug
Cooling inlets
Valve clearance
Combustion chamber
Spark arresting screen in muffler*
All accessible screws and nuts (not
adjusting screws)
* see "Guide to Using this Manual"
1)
STIHL recommends that this work be done by a
a STIHL servicing dealer
48
Visual inspection (condition, leaks)
Clean
Check operation
Clean
Replace
Have checked by servicing dealer
Have replaced by servicing dealer
Clean
Check idle speed
Readjust idle
Readjust electrode gap
Replace after 100 hours of operation
Inspect
Clean
Check and adjust if necessary after first
1)
139 hours of operation
Decarbonize
after first 139 hours of operation, then
after every 150 hours of operation
Inspect
Replace
Retighten
X
X
X
X
X
1)
1)
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
FS 90, FS 90 R
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