Stihl 108 User Guide

							oo
Ifthe spring haspopped outand
uncoiled:
• Wind upthe spring clockwise, from
the inside outwards, untilitsoverall
diameter is
50mm(2).
• Usepointed nosepliers togrip
spring about10mm
(318)fromthe
outer loopandrefit
it.
• Install therope rotor.
50
Tensioning therewind spring
•Make aloopinthe starter ropeand
use itto turn therope rotor seven
full revolutions counterclockwise.
• Hold therotor steady -straighten
the twisted rope-release therotor.
• Letgoofrope slowly sothat
it
winds ontotherotor.
Thestarter gripmust befirmly seatedin
therope guide bush.
If grip droops toone side:
• Add onemore turnonrope rotor
to increase springtension.
Whenstarter ropeisfully extended it
must bepossible torotate therotor
-another halfturn.
• Ifthis isnot the case, thespring
is overtensioned andcould break.
• Take oneturn ofrope offthe rotor.
• Refit andsecure thestarter cover
and machine support. 
						

							SparkArrestingScreeninMufflerStoringtheMachine
1/4\41(.I•
0
l.1•4
4
II\
~
(0I0
I5]
loI0
Iftheengineislow onpower, checkthe
spark arresting screeninsidethemuffler.
• Pulloffthe spark plug
terminal (1).
• Take outshroud mounting
screws (2).
• Remove theshroud (3). •
Take outthescrews (4).
• Remove thecover (5).
• Remove thespark arresting
screen (6).
• Clean sparkarresting screen
if
necessary.
•
Ifscreenisdamaged orcoked up,
fit anew one.
• Refit thespark arresting screen.
• Fitthe cover.
• Fitthe shroud. For
periods ofabout 3months orlonger:
• Drain andclean thefuel tank.
• Runengine untilcarburetor
isdry­
this helps prevent thecarburetor
diaphragms stickingtogether.
• Remove, cleanandinspect the
ClLttingtool.
• . Thoroughly cleanthemachine ­
pay special attention
tothecylinder
fins and airfilter.
• Store themachine
inadry,high or
locked location -out ofthe reach
of children andother unauthorized
persons.
51 
						

							MaintenanceChart
Pleasenotethatthefollowing maintenance intervalsapplyfornormal operating
conditions only.Ifyourdaily working timeislongerthannonmal orconditionsg.?-a.are difficult (verydusty workarea, etc.),shorten thespecified intervalsaccordingly.-c0000E(ijL:-S~.~Olc>-£Ol=:cE(JOl~.>
						

							Theuser ofthe brushcutter maycarry
out only themaintenance operations
described
inthis manual. Otherrepair
work may
beperformed onlybyanau­
thorized STIHLService Shop.
warranty claimsfollowing repairscan
be accepted onlyifthe repair has
been performed byan authorized
STIHL Service Shopusing original
STIHL spareparts.
Original STIHLpartscanbeidentified by
theSTIHLpartnumber, thelogo
STIHCand theSTIHL
parts symbol
lSI,.Thesymbol may
appear alone
onsmallparts.
Specifications
Engine
Single cylinder two-stroke engine
Model FS88 FS108
Displacement: 25.4cm334.4cm3
(1.55cu.in)(2.10cu.in)
Bore: 34mm 37mm
(1.34 in)(1.46 in)
Stroke: 28mm 32mm
(1.10 in)(1.26
in)
Engine power: 0.9kW1.1kW
(to ISO 8893) (1.2bhp) (1.5bhp)
Max. permissible engine speed
with metal cutting tool(rpm):
12,000 12,000
Max. output shaftspeed (toolmoun-
ting)(rpm):
88009000
Idle speed (rpm):28002800
Ignition System Fuel
System
Carburetor:
All position diaphragm carburetor
with integral fuelpump
Air filter:
Foam andfeltelements
Fuel tankcapacity:
0.69 I(1.45
USpt)
Fuel mix:
see chapter Fuel
Weight
withoutcuttingtool
and deflector:
Type: Electronic (breakerless)
magneto ignition
Spark plug
(suppressed):
Electrode gap:
Spark plugthread: Bosch
WSR6 F
or NGK BPMR 7A;
Heat range 200
0.5 mm (0.02 in)
M 14 x1.25;
9.5 mm long
(0.37 in)
FS88with bike handle
FS88with loop handle
FS 108 with bike handle
FS1-08withloop handle 6.5
kg
(14.31b)
5.9
kg
(13.0Ib)
7.1kg
(15.6Ib)
6.5
kg
(14.3Ib)
53 
						

							~ModelTool
SoundSound
power Vibration
VibrationIpressure levelLweqacceleration
acceleration
level L
peqto
toto
to ISO
108841)ISO7916 ISO7916
ISO 79171
)Idle speed
Max.RPM
(m/s2 )(m/s2
)
Handle Handle
dB
(A)dB(A)riQhtleft right~FS882
)Mowina head
98 1092.7
2.4415.7
FS882
)Metal tool
95 1032.7
2.4 5.0 6.3
FS 88R3
)Mowina head98
1092.5
2.06.3 6.3
FS88R4)Metal tool
95 103
2.5 2.0 9.46.7
FS1082
)Mowina head
991112.4 3.72.4 2.8
FS1082
)Metal tool
96 1052.43.72.12.5
FS 108 R3
)Mowina head
991111.8 1.84.4
5.4
FS 108 R
4)Metal tool
96 1051.82.24.4
3.5
1)
2)
3)
4)
54
Weighted equivalent levelincludes idlingandmaximum RPMwiththesame
duration ofexposure
Version withbikehandle
Version withloop handle
Version withloop handle withstandoff lever 
						

							SpecialAccessories
CuttingTools12Circularsawblade 200Nylon lineformowing heads(scratcher tooth)**STIHL«Supercut 2-2»411271342012.4mm/0.095(orange) -for1to8
4002 7102140
15m/50ft00009302243
13Circular sawblade 200
44m/144ft000093022442STIHL «Supercut 20-2»
(chiseltooth)..87m/285ft 000093022454002710216241127134203261m/856ft 00009302246
434m/1424ft 00009302247
3Mahkopf STIHL·«Autocut 24-2»
40027102109
2.7mm/0.105(red) -for7and 84STIHL «Autocut 25-2»
4002710210810.7m/35ft 00009302218
72m/236ft 00009302224
5 STIHL
«Autocut 30-2»
4002 7102107
Thermoplastic blades6STIHL«Polymatic 30-2»
for8
4002 7102120
Packof12
41110071001
7STIHL «Fixed LineHead»
40017132100Transport guards
for9to114119 79039068STIHL «Polycut 40-3»
for12and 13 41197903901
41117102100
9Grass
cuttingblade230-4*Other special accessories40017133801
Shoulderstrap
Full
b~mess10Grass cut1ing blade230-8*Goggres
4001 7133803
STIHLmultipurpose grease
11Brushknife250-3*Notapproved forFS 88and
(80g/3oztube) 0781120110941127134100FS108 with loop handlewithout(225 gl8oztube) 07811201110
standoff lever
STIHLgearlubricant
(80 g/3oztube) 07811201117
Not approved forFS 88and
(225g/8oztube) 0781
1201119FS108 with loop handle
55 
						

							&WARNING!
Theengineexhaustfromthisproduct
contains chemicals
knowntotheState
ofCaliforniatocausecancer.birth
defectsorother reproductiveharm.
englisch/english U.S.A.