Stihl FC 75 User Manual

1. Introduction 2
2. Specifications 3
2.1 Engine 3
2.2 Fuelsystem 3
2.3 Ignitionsystem 4
2.4 Gearbox 4
2.5 Cuttingattachment 5
2.6 Specialaccessories 6
2.6.1 Fortheuser 6
2.6.2 Forservice 6
2.7 Tighteningtorques 7
3. Clutch 9
3.1 Disassembly 9
3.2 Assembly 10
4. Engine 11
4.1 Muffler/sparkarresting
screen 11
4.2 Leakagetesting 11
4.2.1 Preparations 12
4.2.2 Pressuretest 12
4.2.3 Vacuumtest 13
4.3 Oilseals 14
4.4 Exposingthecylinder/
spacerflange 15
4.5 Cylinderandpiston 16
4.5.1 Removal 16
4.5.2 Installation 16
4.6 Pistonrings 18
4.7 Crankcase 18
4.7.1 Removingthecrank-
shaft 18
4.7.2 Installingthecrankshaft20
5. Ignitionsystem 23
5.1 Sparkplugterminal 23
5.2 Ignitionmodule 24
5.2.1 Ignitiontiming 24
5.2.2 Removalandinstalla-
tion 25
5.3 Flywheel 26
6. Rewindstarter 27
6.1 General 27
6.2 Startercover 27
6.3 Rewindspring 28
6.3.1 Replacement 28
6.3.2 Tensioning 28
6.4 Starterrope
(ElastoStart) 29
6.5 Startergrip
(ElastoStart) 30
6.6 Startercarrier/pawl 30
7. Throttlecontrol 31
7.1 Throttletrigger/interlock
lever(throttlecablewith
oneshort-circuitwire) 31
7.2 Throttlecablewithone
short-circuitwire 32
7.3 Contactspring/detent
springincontrolhandle
(throttlecablewithone
short-circuitwire) 33
7.4 Throttletrigger/interlock
lever(throttlecablewith
twoshort-circuitwires)33
7.5 Throttlecablewithtwo
short-circuitwires 34
7.6 Adjustingthethrottle
cable 34
8. Fuelsystem 35
8.1 Airfilter 35
8.2 Carburetor 35
8.2.1 Leakagetesting 35
8.2.2 Removaland
installation 36
8.2.3 Adjustment
(twoadjustingscrews)37
8.2.4 Adjustment
(oneadjustingscrew) 38
8.3 Tankvent 39
8.4 Pickupbody 39
8.5 Fueltank/hoses 40
9. AVsystem 41
9.1 Repair 41
10. Shaft 43
10.1 Cowhornhandle 43
10.2 Loopedhandle 43
10.3 Driveshaft/insulating
tube 45
10.4 Protectivetube 46
11. Cuttingtooldrive 47
11.1 Bearinghousing
(FS75) 47
11.2 Gearbox(FS80,85) 47
11.3 Gearbox(FC75) 48
11.4 Clutchdrum 50
12. Cuttingdevice(HL75)51
12.1 Gearbox 51
12.2 Cuttingblade 51
12.3 Gearwheel 53
13. Specialservicetools
andaids 55
13.1 Specialtools 55
13.2 Servicingaids 57
©1996,AndreasStihlAG&Co.,Waiblingen
FS75
Contents
1

Stihl FC 75 Specifications

General

Brand	Stihl
Model	FC 75
Category	Brush Cutter
Language	English