Maintenance Chart - Stihl FS 25-4 User Manual

15.

Maintenance chart

Please note that the following maintenance intervals apply for normal
operating conditions
only. If your daily working time is longer than normal or operating condi-
tions are difficult
(very dusty work area etc.) shorten the specified intervals accordingly.
Engine oil
Complete machine
Control handle
Air filter
Filter in fuel tank
Fuel tank
Carburetor
Spark plug
Cylinder fins
All accessible screws and nuts
(not adjusting screws)
Metal cutting tools
Gearbox lubrication
Drive shaft
Valve clearance
Fuel lines
FS 25-4, 65-4
Check oil level
Change
Visual inspection (condition, leaks)
Clean
Check operation
Check
Clean
Replace
Check
Replace
Clean
Check idle setting -
cutting tool must not rotate
Readjust idle
Readjust electrode gap
Clean
Retighten
Visual inspection
Sharpen
Check
Top up
Check
Relubricate
Check and adjust if necessary
Check and replace if necessary
x
x x
x x
x x
x
x
x
x x
x
x
x x
x
x
every 2 years
x
x
x x
x
x x
x
x
x
x x
x
45