Stihl FS 45 - Cylinder and Piston

Alwayscheckand,ifnecessary,
repairthefuelsystem,carburetor,
airfilterandignitionsystembefore
lookingforfaultsontheengine.
Troubleshootingchart-see
"StandardRepairs,Trouble-
shooting"handbook.
-Removethemuffler,ignition
module
andspacerflange-see5.1.
-Unscrewthesparkplug.
•
Fitjaws(1)00008933700
withNo.2profileonpuller(2)
59108904400.
•
Fitthescrewbush(3)
11088934500onthespindle.
•
Toensurethatthecrankcase
andenginepandonotcome
apartwhenthecylinderis
removed,holdbothparts
togetherwiththepuller.
•
Unscrewthecylinderbase
screws.
-Clampthepullerinavise.
-Pullthecylinderoffthepiston.
-Inspectthecylinderandreplace
itifnecessary.
-Ifanewcylinderhastobe
installed,alwaysfitthematching
piston.Newcylindersareonly
availablewithpiston.
-Removethecylindergasket.
•
Atthestartercupside,takethe
snapring(B8x0.7)outofthe
groove.
Note:Thehooklesssnapringat
theflywheelsideremainsinthe
groove.
•
Nowusethe7mm(1/4")diadrift
topushthepistonpin(1)outof
thepiston.
Note:Ifthepistonpinisstuck,tap
theendofthedriftlightlywitha
hammerifnecessary.Holdthe
pistonsteadyduringthisprocess
toensurethatnojoltsaretrans-
mittedtotheconnectingrod.
-Removepistonfromthe
connectingrod.
-Inspectneedlecafeandreplace
crankshaftifnecessary-see5.7.
-Inspectpistonringandreplaceif
necessary-see5.6.
5.5 CylinderandPiston
5.5.1 Removing
VA
232RA114
VA
232RA117
VA
232RA116
VA
232RA115
VA
232RA118
1
3
1
2
14 FS45