Related Manuals for Stihl FC 75
Summary of Contents for Stihl FC 75
- Page 1 STIH) STIHL Components 4137 FC, FH, FS, HL, KM, KW 2004-06 FC 75, FC 85 FH 75 FS 75, FS 80, FS 85 HL 75 KM 85 KW 85 SP 81...
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Page 2: Table Of Contents
Oval End Cover 9.3.2 Flange Mounting with Square End Cover 9.3.3 Metering Diaphragm © ANDREAS STIHL AG & Co. KG, 2004 FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 3: Introduction
Technical information bulletins also supplement the parts list until a revised edition is issued. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 4: Safety Precautions
All work with fuel must be performed outdoors only. Spilled fuel must be wiped away immediately. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 5: Specifications
Rated cut-off speed: 10,500 rpm Operation of tank vent: - at gauge pressure: 50 kPa (0.5 bar) - under vacuum: 20 kPa (0.2 bar) FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 6: Tightening Torques
IS-M5x10 Quadrant/gear housing Screw IS-M4x16 Guard plate/gearbox cover Screw IS-M5x16 Shroud/fan housing Screw IS-M5x16 Shroud/starter cover/crankcase Screw IS-M5x20 AV sleeve (clamp screw) FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... - Page 7 Screw IS-DG5x24 Cylinder/crankcase Spark plug M14x1.25 Spark plug 15.0 20.0 Screw IS-M4x20 Ignition module/cylinder (with washer) Screw IS-M5x25 Spacer flange/cylinder (with washer) FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85...
- Page 8 Power screwdriver settings for polymer: Plastoform screws: max. 600 rpm DG screws: max. 500 rpm Important: Do not mix up screws with and without binding head FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85...
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Page 9: Troubleshooting
Fit new retainer (carrier) or clutch broken Clutch shoes and carrier worn Install a new clutch Needle cage damaged Install a new needle cage FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 10: Rewind Starter
(spring (containing no chlorinated or windings stick together) halogenated hydrocarbons). Then pull rope carefully several times until normal action is restored FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 11: Fuel System
Engine will not idle – Throttle shutter opened too wide by Reset idle speed screw LA idle speed too high idle speed screw correctly FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... - Page 12 Inlet control lever too low Fit new inlet control lever (relative to correct installed position) FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85...
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Page 13: Engine
Air inlets in fan housing passages and cooling fins blocked or cooling fins on cylinder very dirty see "Series 4137 Powerhead" service manual“ FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 14: Clutch
: Unscrew the spark plug (2). ignition lead (arrow), are located excessive wear. in the guides in the shroud. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... - Page 15 : Use hook (2) 5910 890 2800 to : Clamp the clutch is a vise with remove the clutch springs (1). protective jaws. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85...
- Page 16 – Fit the shroud, b 5.1 press the clutch drum out of the and tighten it down firmly, b 3.2 ball bearing. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85...
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Page 17: Muffler/Spark Arresting
Install in the reverse sequence. : Bend up the tab (1) on the retainer. : Pull out the gasket (2). Install in the reverse sequence. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 18: Removing And Installing The Engine
(arrow). – Remove the engine from the clutch housing. Install in the reverse sequence. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 19: Removing And Installing
(1) engages the plug (2). lug from lower screw (arrow). – Remove the rewind starter. Install in the reverse sequence. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 20: Rope Rotor/Rewind
Dimension "a" must be 2 mm. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 21: Tensioning
: Hold the rope rotor steady. – Install the rewind starter, b 6.2 : Pull out the rope with the starter grip and straighten it out. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 22: Starter Rope
– Tie a simple overhand knot in the end of the rope. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 23: Carrier/Pawl
Assemble all other parts in the reverse sequence. : Squeeze the ends of the pawl’s peg together. – Take the pawl out of the carrier. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 24: Av System
: Remove the fixing screw (1) from protective tube out of the retainer. the AV sleeve. : Loosen the clamp screw (2). – Pull out the drive tube. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... - Page 25 : Pull the fan housing off the rubber housing. the flange (2) is behind the element. sleeve. – Slip the retaining ring off over the AV sleeve. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85...
- Page 26 3.2 : Install the retaining ring (gap facing clamp screw) so that it locates in the slots (arrow) in the fan housing. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85...
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Page 27: Throttle Control
– Remove the inner handle The bent leg of the torsion spring molding from the drive tube. must engage the slot in the throttle trigger. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 28: Detent/Torsion Spring
– Tighten down the screws firmly, b 3.2 Assemble all other parts in the reverse sequence. : Pull the slide control out of the handle molding. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 29: Throttle Cable
: Remove the torsion spring. tensioner. throttle cable and tube in the inner handle molding. Assemble all other parts in the reverse sequence. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 30: Slide Control
(2), protective tube the pivot. (3) and insulator (4) correctly. Install in the reverse sequence. – Tighten down the screws firmly, b 3.2 FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... - Page 31 : Pull the throttle cable out of the : Check that the throttle cable (1), tensioner. contact spring (2), protective tube (3) and insulator (4) are properly seated. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85...
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Page 32: Throttle Trigger/Interlock
: Disconnect the throttle cable : Remove the torsion spring remove the handle molding. from the throttle trigger. (arrow). Install in the reverse sequence. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 33: Contact/Detent Spring 32
: Take out the clamp screws (arrows). – Remove the handle molding from the drive tube. : Remove the torsion spring from the pivot. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 34: Adjusting The Throttle
8.3.1 : Pull the short circuit wire’s connector (1) off the tag (2). : Pull the connector (3) off the tag (4). FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 35: Control Handle On Bike Handle Up To 1997
: Remove the mounting screws : Remove the torsion spring from (arrows) from the handle the pivot. moldings. – Separate the two handle moldings. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 36: Throttle Trigger/Interlock
: Engage the torsion spring on the : Unscrew the collar screw (1) from throttle trigger. the slide control. : Remove the detent spring (2). FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... - Page 37 Install in the reverse sequence. The contact spring must engage the annular groove in the collar screw. : Pull the throttle cable out of the tensioner. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85...
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Page 38: Handle Up To 2002
– Separate the handle moldings. throttle cable (3) off the pivot. – Tighten down the handle molding mounting screws firmly, b 3.2 FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... - Page 39 : Disconnect throttle cable nipple the slide control. (1) from slotted pin (2) on carburetor’s throttle lever. : Remove the detent spring (2). FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85...
- Page 40 (arrow) is making good contact. : Take throttle cable’s protective tube out of the retainer. – Remove the throttle trigger, b 8.6.1 FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85...
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Page 41: Throttle Trigger/Interlock Hl
(arrow). : Take out the screws (2) and Install in the reverse sequence. remove the handle molding. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 42: Contact/Detent Spring
Assemble all other parts in the reverse sequence. : Pull the slide control (1) out of the handle molding. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 43: Adjusting The Throttle 10.5
The throttle lever must butt against the idle speed screw (4). : Remove the foam element (1) and felt element (2). FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... - Page 44 (arrow). nipple (2) 0000 855 9200. the carburetor until the pressure gauge (3) shows a reading of approx. 0.8 bar. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85...
- Page 45 : Disconnect the fuel hose (2) from the carburetor. : Pull the carburetor off the screws. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85...
- Page 46 : Take the adjusting screw (arrow) screws (1) out of the spacer out of the tensioner. flange. Install in the reverse sequence. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85...
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Page 47: With Oval End Cover
: Take out the M3x8 screws (1). converted to the later version with a square end cover, b 9.3.2 : Remove the flange (2). FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 48: Flange Mounting With Square End Cover
Install in the reverse sequence. Install in the reverse sequence. : Take the cap out of the end cover. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 49: Inlet Needle
Install in the reverse sequence. : Use a suitable screwdriver to unscrew the fixed jet (1). Install in the reverse sequence. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 50: Pump Diaphragm
(arrows) on the end If the gasket and pump diaphragm cover (3). are stuck together, remove and separate them very carefully. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 51: Carburetor With
Engine stops while idling – Turn the idle speed screw (LD) slowly clockwise until the engine runs smoothly. The cutting tool must not run. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 52: User Adjustment, Carburetor With Limiter Cap
– Carry out the standard setting. – Start the engine and allow it to warm up. – Open the throttle wide. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 53: Service Adjustment, Carburetor With Limiter Cap
– Open the high speed screw (H) 1 1/2 turns counterclockwise. – Open the low speed screw (L) one full turn counterclockwise. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... - Page 54 Limiter caps that have been – Carry out the user adjustment, b 9.4.3 removed once may be damaged and must not be re-used. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85...
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Page 55: Tank Vent
(2) 0000 855 9200. valve body, the sintered filter and the hole in the filler cap. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 56: Pickup Body
– Open the tank again and drain it. Dispose of fuel and lubricants properly at approved disposal site. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 57: Fuel Tank
: Pull the pickup body off the fuel hose. plugs (2). hose. – Fit a new pickup body. Install in the reverse sequence. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 58: Drive Tube
(arrows) point 60°. towards the gearbox at an angle of 10 - 15 degrees to the drive tube. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 59: Barrier Bar
20 cm (distance “A“) forward of one side and pull off the handle the control handle and tighten it hose. down firmly. Install in the reverse sequence. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 60: Drive Shaft/Flexible
15 cm (distance “A“) forward of the control handle and tighten it down firmly. Assemble all other parts in the reverse sequence. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 61: (Km 85 Only)
– Remove the drive shaft. the upper end of the drive tube : Use hook (1) 5910 890 2800 to (3). pull out the plug. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... - Page 62 (2) into the drive tube. : Press down the lock button (arrow) and push the sleeve (2) home as far as stop. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85...
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Page 63: Drive Tube
: Loosen the clamp screws (arrows) in the control handle. – Pull off the carrying ring. Install in the reverse sequence. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 64: (Km 85 Only)
: Pull off the throttle cable retainer Version with loop handle from 2002 (if fitted). : Loosen the clamp screws (arrows) in the control handle. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 65: Bearing Housing (Fs 75 Only)
: Take out the fixing screw (arrow). : Pull out the output shaft. – Pull the bearing housing off the drive tube. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... - Page 66 (3). then push home the deflector as far as stop. – Tighten down the clamp screws firmly, b 3.2 FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85...
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Page 67: Special Sevicing
Alternative: Torque wrench 5910 890 0302 with optical/acoustic signal. Alternative: Torque wrench 5910 890 0312 with optical/acoustic signal. Only use for releasing/removing DG or P screws. FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... -
Page 68: Servicing Aids
0786 111 1101 adhesive (Loctite 242) High-strength threadlocking 0786 111 1109 adhesive (Loctite 270) High-strength threadlocking 0786 110 0126 adhesive (Loctite 649) FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85... - Page 69 FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85...
- Page 70 englisch / english 0455 394 0123. M7. F4. Sä. Printed in Germany...