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Stihl FC 75, Руководство по обслуживанию

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Stihl FC 75 Скачать руководство пользователя страница 43

42

FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85

The carburetor’s throttle lever must 
butt against the stop on the 
carburetor cover when the throttle 
trigger is fully depressed (full 
throttle) and against the idle speed 
screw (LA) when the throttle trigger 
is released (idle position).

– Remove the shroud, 

b

 5.1

Version with Control Handle 
up to 2002 only

– To adjust, squeeze the throttle 

trigger as far as stop (full throttle 
position).

:

Turn the adjusting screw (1) 

VA

932RA314

2

3

1

4

clockwise until the throttle lever 
(2) butts against the stop (3) on 
the carburetor cover.

:

Release the throttle trigger (idle 
position). The throttle lever must 
butt against the idle speed screw 
(4).

Version with Control Handle 
from 2002 only

The throttle cable is 

no longer

 

adjusted at the tensioner. However, 
if the basic setting of the automatic 
throttle cable adjuster does not 
produce a satisfactory result, rotate 

VA

936RA377

1

the adjusting screw slightly.

– Remove the shroud, 

b

 5.1

:

Before starting the adjustment, 
center the adjusting screw (1) as 
shown.

Install in the reverse sequence.

Dirty air filters reduce engine power, 
increase fuel consumption and 
make starting more difficult. The air 
filter must be cleaned if there is a 
noticeable loss of engine power.

– Close the choke shutter.

– Remove all loose dirt from 

around the filter housing and 
cover.

:

Push back the tab on the filter 
housing.

:

Pull of the filter cover.

VA

936RA156

:

Remove the foam element (1) 
and felt element (2).

VA

936RA157

1

2

8.8

Adjusting the Throttle 
Cable

9.

Fuel System

9.1

Air Filter

Содержание FC 75

Страница 1: ...STIHL Components 4137 FC FH FS HL KM KW 2004 06 STIH FC 75 FC 85 FH 75 FS 75 FS 80 FS 85 HL 75 KM 85 KW 85 SP 81 ...

Страница 2: ...ct Detent Spring 35 8 5 3 Throttle Cable 36 8 6 Control Handle on Bike Handle up to 2002 37 8 6 1 Throttle Trigger Interlock Lever 37 8 6 2 Contact Detent Spring 38 8 6 3 Throttle Cable 38 8 7 Control Handle on Bike Handle from 2002 40 8 7 1 Throttle Trigger Interlock Lever 40 8 7 2 Contact Detent Spring 41 8 8 Adjusting the Throttle Cable 42 9 Fuel System 42 9 1 Air Filter 42 9 2 Carburetor 43 9 ...

Страница 3: ...ced since publication of this service manual Technical information bulletins also supplement the parts list until a revised edition is issued The special servicing tools mentioned in the descriptions are listed in the chapter Special Servicing Tools of this manual Use the part numbers to identify the tools in the STIHL Special Tools manual The manual lists all special servicing tools currently ava...

Страница 4: ...e safety precautions and warnings in the instruction manual Gasoline is an extremely flammable fuel and can be explosive in certain conditions Improper handling may result in burns or other serious injuries Warning Do not bring any fire flame spark or other source of heat near the fuel All work with fuel must be performed outdoors only Spilled fuel must be wiped away immediately 2 Safety Precautio...

Страница 5: ...etor leakage test at gauge pressure 80 kPa 0 8 bar Fuel mixture Regular brand name gasoline with min 90 RON and STIHL 50 1 two stroke engine oil see instruction manual for further details Rated idle speed 2 800 rpm 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 ...

Страница 6: ...ndle handle molding outer inner bike handle 0 75 1 0 2 7 Screw IS P4x16 Control handle handle molding outer inner loop handled machine 0 75 1 0 2 7 Screw IS M5x12 Control handle clamp right hand screw loop handled machine 3 6 5 0 2 7 Screw IS DG5x16 Loop handle 1 8 2 5 1 3 8 Screw IS M6x50 Loop handle drive tube nut 2 6 3 5 1 3 8 Mutter M5 Filter housing carburetor flange screw 3 0 4 0 Screw IS B4...

Страница 7: ... 7 0 9 5 6 M8 Carrier 10 3 14 0 Collar nut P3 5x9 0 Detent spring slide control control handle 1 5 1 1 2 7 Screw IS M5x22 Clamp drive tube harness adjustment version with split boom 2 2 3 0 2 7 Screw IS P5 5x12 Rope rotor starter cover 2 6 3 5 Screw IS 5x33 Clamp deflector 3 3 4 5 1 Screw IS 5x16 Muffler crankcase 7 0 9 5 Screw IS 5x16 Muffler cylinder 8 5 11 5 Screw IS M6x14 Clamp drive tube harn...

Страница 8: ... the screw in the hole and rotate it counterclockwise until it drops down slightly Tighten the screw clockwise to the specified torque This procedure ensures that the screw engages properly in the existing thread and does not form a new thread and weaken the assembly Power screwdriver settings for polymer Plastoform screws max 600 rpm DG screws max 500 rpm Important Do not mix up screws with and w...

Страница 9: ...ch drum Tool runs at idle speed Idle speed too high Readjust idle speed screw counterclockwise Clutch springs stretched or fatigued Fit new clutch springs Clutch spring hooks broken Fit new clutch springs Loud noises Clutch springs stretched or fatigued Replace all clutch springs Clutch shoe retainer carrier broken Fit new retainer carrier or clutch Clutch shoes and carrier worn Install a new clut...

Страница 10: ...l new spring Starter rope can be pulled out almost without resistance crankshaft does not turn Guide peg on pawl or pawl itself is worn Fit new pawl Spring clip fatigued Fit new spring clip Starter rope is difficult to pull and rewinds very slowly Starter mechanism very dirty dusty conditions Thoroughly clean complete starter mechanism Lubricating oil on rewind spring becomes viscous at very low o...

Страница 11: ...gged Clean the air filter or replace if necessary Tank vent faulty Clean the tank vent of replace if necessary Leak in fuel line between tank and fuel pump Seal or renew connections and fuel line Pump diaphragm damaged or fatigued Fit new pump diaphragm Main jet bores or ports blocked Clean the bores and ports Fuel pickup body dirty Install new pickup body Fuel strainer dirty Fit new fuel strainer...

Страница 12: ...an the bore Diaphragm gasket leaking Fit new diaphragm gasket Metering diaphragm damaged or shrunk Fit new metering diaphragm Carburetor floods engine stalls Inlet needle not sealing Foreign matter in valve seat or cone damaged Remove and clean or replace inlet needle clean fuel tank pickup body and fuel line if necessary Inlet control lever sticking on spindle Free off inlet control lever Helical...

Страница 13: ...he crankcase 1 Muffler leaking Seal replace the muffler Engine does not deliver full power or runs erratically Piston rings worn or broken Install new piston rings 1 Muffler spark arresting screen carbonized Clean muffler inlet and exhaust openings replace spark arresting screen Air filter element dirty Fit new air filter element Fuel impulse line kinked or cracked Fit new lines or position withou...

Страница 14: ...t b 4 1 Removing Remove the shroud b 5 1 Take out the screws arrows Remove the engine from the fan housing and put it to one side VA 936RA002 Inspect the clutch drum There should be no scores or signs of excessive wear VA 936RA003 If there are noticeable wear marks on the inside diameter of the clutch drum 1 check its wall thickness If it is less than about 80 of the original thickness fit a new c...

Страница 15: ...l the retainers off the clutch shoes VA 936RA305 Clean all parts b 12 Replace any damaged parts Installing VA 936RA306 Recommendation If possible always replace the clutch as a complete assembly Fit the retainers 1 on the clutch shoes so that the narrow side 2 is on the same side as the number 3 VA 208RA032 3 1 2 Push the clutch shoes over the arms 1 of the carrier so that the number 2 is on the s...

Страница 16: ...aking sure the lugs 1 engage the plugs 2 Fit fan housing mounting screws and tighten them down firmly b 3 2 VA 936RA008 1 2 Remove the locking strip from the cylinder Install the spark plug and tighten it down firmly b 3 2 Check if spark plug has a detachable adapter nut If so make sure it is properly fitted and firmly tightened Fit boot on the spark plug Fit the shroud b 5 1 Remove the engine b 5...

Страница 17: ...of the muffler VA 936RA307 Take out the inner screws arrows Remove the muffler with gasket 936RA308 VA Bend up the tab 1 on the retainer Pull out the gasket 2 Install in the reverse sequence VA 936RA309 2 1 Bend the tab down again after fitting the gasket Tighten down the muffler mounting screws b 3 2 Assemble all other parts in the reverse sequence Spark arresting screen Take out the screw 1 Pull...

Страница 18: ...lowly or not completely it can be assumed that the starter mechanism is in order but plugged with dirt At very low outside temperatures the lubricating oil on the rewind spring may thicken and cause the spring windings to stick together This has a detrimental effect on the function of the starter mechanism In such a case it is sufficient to apply a few drops of a standard solvent based degreasant ...

Страница 19: ...stall in the reverse sequence 936RA430 VA Check that the plug arrow in the rewind starter is correctly seated Replace if damaged VA 936RA037 Fit the rewind starter so that the lug 1 engages the plug 2 VA 936RA038 1 2 On machines with one short circuit wire secure the throttle cable lug with the lower screw arrow Tighten down the screws firmly b 3 2 936RA430 VA Assemble all other parts in the rever...

Страница 20: ...ing is installed in the rope rotor The spring may pop out and uncoil if the rope rotor is not removed very carefully VA 936RA040 Always wear safety glasses Remove the pieces of broken spring from the rewind starter To replace the rope rotor remove the starter rope b 6 4 Install in the reverse sequence Pay attention to correct installed position of the rewind spring The rewind spring may pop out of...

Страница 21: ...he rope rotor steady Pull out the rope with the starter grip and straighten it out VA 936RA047 Hold the starter grip firmly to keep the rope tensioned Let go of the rope rotor and slowly release the starter rope so that it can rewind properly The rewind spring is correctly tensioned when the starter grip sits firmly in the rope guide bushing without drooping to one side If this is not the case ten...

Страница 22: ...RA019 Pull the rope back so that the knot locates in the starter grip Refit the cap in the starter grip Tension the starter rope b 6 3 1 Assemble all other parts in the VA 936RA020 reverse sequence The ElastoStart starter grip is supplied with starter rope Remove the rewind starter b 6 2 Remove the rope rotor b 6 3 Pull the knot out of the recess in the rope rotor Undo the knot and pull the rope o...

Страница 23: ...he rope rotor b 6 3 VA 936RA051 Tension the rewind spring b 6 3 1 Assemble all other parts in the reverse sequence Unscrew the spark plug and block the piston with the locking strip 0000 893 5903 b 5 2 Remove the rewind starter b 6 2 Unscrew the carrier from the VA 936RA053 crankshaft Squeeze the ends of the pawl s peg together Take the pawl out of the carrier VA 936RA054 Take the torsion spring a...

Страница 24: ... units the anti vibration connection between the engine and drive shaft consists of a vibration damping rubber element installed in the fan housing Removing Remove the shroud b 5 1 On machines with a bike handle take out the screw arrow Pull off the control handle 392RA083 VA Take the throttle cable s protective tube out of the retainer On machines with a loop handle loosen the clamp screws arrows...

Страница 25: ...he AV sleeve as far as stop Tighten down the clamp screw 2 firmly If necessary tighten the fixing VA 936RA236 2 3 1 screw 3 moderately Apply a few drops of STIHL press fluid OH 723 b 12 between the fan housing and rubber element Clamp the service tool in a vise Pull the fan housing off the rubber element VA 936RA237 Loosen the clamp screw 1 and if necessary the fixing screw 2 Pull the sleeve 3 off...

Страница 26: ...hat the slot 1 is on the round side 2 of the housing VA 936RA241 2 1 Install the retaining ring gap facing clamp screw so that it locates in the slots arrow in the fan housing VA 936RA242 Assemble all other parts in the reverse sequence Push home the drive tube until the holes line up Tighten down the fixing screw and clamp screw firmly b 3 2 VA 936RA243 ...

Страница 27: ...Remove the torsion spring from the pivot VA 936RA123 Take out the clamp screws arrows Remove the inner handle molding from the drive tube VA 936RA124 Disconnect throttle cable nipple from the throttle trigger Pull the throttle trigger off the drive tube VA 936RA125 Remove the torsion spring arrow if fitted from the pivot Install in the reverse sequence VA 936RA126 Push the throttle trigger facing ...

Страница 28: ...ws firmly b 3 2 VA 936RA129 Assemble all other parts in the reverse sequence FC 75 FS 75 80 85 HL 75 only Remove the throttle trigger b 8 1 1 Pull the short circuit wires arrows off the connector tags 982RA073 Take out the collar screw 1 remove the detent spring 2 VA 936RA141 2 1 Pull the slide control out of the handle molding VA 936RA148 Carefully pry the push nut off the pivot VA 936RA143 Remov...

Страница 29: ...ll the short circuit wires off the connector tags in the control VA 936RA152 handle b 8 1 2 Install in the reverse sequence Position the short circuit wires throttle cable and tube in the inner handle molding Assemble all other parts in the reverse sequence VA 936RA154 To avoid the risk of electrocution do not start the engine while the control handle is exposed All models except KM 85 Take out th...

Страница 30: ...with contact spring off the pivot VA 936RA250 Remove the contact spring arrow from the interlock lever Install in the reverse sequence Position the throttle cable 1 contact spring 2 protective tube 3 and insulator 4 correctly Tighten down the screws firmly b 3 2 Remove the interlock lever b 8 2 1 Pull the slide control off the handle molding Take out the clamp screws Remove the handle molding from...

Страница 31: ...ble 2 VA 936RA115 2 1 Disconnect throttle cable nipple 1 from slotted pin 2 on carburetor s throttle lever VA 936RA116 2 1 Pull the throttle cable out of the tensioner VA 936RA117 Pull the short circuit wire connector off the tag on the ignition module Remove the throttle trigger b 8 2 1 VA 936RA118 Lift the contact spring 1 slightly and remove the throttle cable 2 Install in the reverse sequence ...

Страница 32: ...pring Remove the throttle trigger 1 with attached throttle cable 2 from the pivot VA 936RA251 1 2 Disconnect the throttle cable from the throttle trigger VA 936RA249 Take the slide 1 out of the guide and remove the throttle cable VA 249RA104 1 Lift the interlock lever 1 slightly and turn it sideways until the torsion spring 2 is relaxed Pull the interlock lever 1 off the pivot VA 936RA253 1 2 Remo...

Страница 33: ...y slack in the throttle cable Remove the interlock lever b 8 3 1 Pull the slide control off the handle molding Take out the clamp screws arrows Remove the handle molding from the drive tube VA 249RA105 Remove the torsion spring from the pivot 936RA438 VA Take out the stop switch 1 Install in the reverse sequence Position the switch s wire in the channel 2 936RA439 VA 2 1 Assemble all other parts i...

Страница 34: ... 1 off the tag 2 Pull the connector 3 off the tag 4 VA 936RA376 3 2 4 1 Install in the reverse sequence The carburetor s throttle lever must butt against the stop on the carburetor cover when the throttle trigger is fully depressed full throttle and against the idle speed screw LA when the throttle trigger is released idle position Adjustments are carried out on the tensioner Remove the shroud b 5...

Страница 35: ...trocution do not start the engine while the control handle is exposed FS 75 80 85 only Take the screw arrow out of the handle Pull the handle off the handlebar VA 936RA277 Remove the mounting screws arrows from the handle moldings Separate the two handle moldings VA 936RA132 Lift the throttle trigger slightly and turn it sideways until the torsion spring 2 is relaxed Pull the throttle trigger off ...

Страница 36: ...le trigger VA 936RA283 Make sure the short circuit wires and the throttle cable are correctly positioned in the handle molding arrows Assemble all other parts in the reverse sequence VA 936RA284 FS 75 80 85 only Remove the throttle trigger b 8 5 1 Pull short circuit wires off the tags arrows on the contact springs VA 936RA145 Pull the contact spring out of the handle molding VA 936RA146 Unscrew th...

Страница 37: ...e shroud b 5 1 Disconnect throttle cable nipple 1 from slotted pin 2 on carburetor s throttle lever VA 936RA150 2 1 Pull the throttle cable out of the tensioner VA 936RA151 Pull the connectors arrows off the tags on the ignition module Remove the throttle trigger b 8 5 1 Pull the short circuit wires off the connector tags in the control VA 936RA152 handle b 8 5 2 Install in the reverse sequence Po...

Страница 38: ...ock lever off the pivot VA 936RA425 1 2 Remove the torsion spring arrow Pull the throttle trigger 1 with torsion spring 2 and attached throttle cable 3 off the pivot VA 936RA426 3 1 2 Disconnect throttle cable from the throttle trigger Install in the reverse sequence VA 936RA427 After attaching the throttle cable fit the torsion spring over the pivot arrow and push its long leg into the slot 392RA...

Страница 39: ... the slide control Remove the detent spring 2 Pull the slide control arrow out of the handle molding Install in the reverse sequence The contact spring must engage the annular groove in the collar screw FS 75 80 85 only Remove the shroud b 5 1 Take out the screw 1 Remove the extended throttle cable 2 VA 936RA115 2 1 Disconnect throttle cable nipple 1 from slotted pin 2 on carburetor s throttle lev...

Страница 40: ...ignition module VA 936RA118 Take throttle cable s protective tube out of the retainer Remove the throttle trigger b 8 6 1 Lift the contact spring 1 and remove the throttle cable 2 Install in the reverse sequence Make sure the throttle cable 1 contact spring 2 protective tube 3 and insulator 4 are properly seated Check that the short circuit wire arrow is making good contact ...

Страница 41: ...A 932RA293 2 1 Remove the torsion spring Remove the throttle trigger 1 with attached throttle cable 2 from the pivot VA 936RA251 1 2 Disconnect the throttle cable from the throttle trigger VA 936RA249 Take the slide 1 out of the guide and remove the throttle cable VA 249RA104 1 Lift the interlock lever 1 slightly and turn it sideways until the torsion spring 2 is relaxed Pull the interlock lever 1...

Страница 42: ... the collar screw 1 from the slide control Remove the contact spring 2 from the pivot 3 VA 932RA218 2 1 3 Pull the slide control 1 out of the handle molding VA 932RA221 1 Pry the stop switch 1 with wires out of the handle molding Install in the reverse sequence VA 932RA220 1 Make sure the short circuit wires are correctly positioned When fitting the detent spring 1 make sure that the connector tag...

Страница 43: ...eed screw 4 Version with Control Handle from 2002 only The throttle cable is no longer adjusted at the tensioner However if the basic setting of the automatic throttle cable adjuster does not produce a satisfactory result rotate VA 936RA377 1 the adjusting screw slightly Remove the shroud b 5 1 Before starting the adjustment center the adjusting screw 1 as shown Install in the reverse sequence Dir...

Страница 44: ...r housing arrow VA 936RA159 If you suspect a fault in the fuel system b 4 3 In the case of problems with the carburetor or fuel supply system also check and clean or replace the tank vent b 9 5 The carburetor can be tested for leaks with the carburetor and crankcase tester 1106 850 2905 Remove the shroud b 5 1 Disconnect the fuel hose from the carburetor s elbow connector arrow VA 936RA160 Push th...

Страница 45: ... the test open the vent screw and pull the fuel hose off the carburetor Push the fuel hose onto the carburetor s elbow connector Fit the shroud b 5 1 Remove the shroud b 5 1 Disconnect throttle cable nipple 1 from slotted pin 2 on carburetor s throttle lever VA 936RA164 1 2 Disconnect the fuel hose 1 from the fuel pump flange Disconnect the fuel hose 2 from the carburetor VA 936RA165 1 2 Remove th...

Страница 46: ...Take the throttle cable out of the tensioner arrow VA 936RA214 Take out the screws with washers arrows Remove the spacer flange with gasket VA 936RA215 If necessary pull the hex head screws 1 out of the spacer flange VA 936RA216 1 Remove the screw with bushing or push nut with pin 1 Take the tensioner 2 off the spacer flange On version with push nut always install a new push nut VA 936RA208 1 2 Ta...

Страница 47: ...e the cap out of the end cover VA 936RA258 Inspect the metering diaphragm and gasket and replace if necessary b 9 3 3 Install in the reverse sequence Additional holes in the gasket and diaphragm if there are any must VA 936RA025 line up with those in the carburetor and flange Insert the M3x8 screws in the flange mounting holes without integrally cast spacers and carburetor and tighten them down No...

Страница 48: ...an oval end cover b 9 3 1 Remove flange secured with a square end cover b 9 3 2 Remove the metering diaphragm 1 and gasket 2 VA 936RA026 1 2 from the carburetor body If the gasket and diaphragm are stuck together remove and separate them very carefully Inspect the diaphragm and gasket and replace if necessary The diaphragm is a very delicate component As a result of the alternating stresses the ma...

Страница 49: ...erse sequence Engage clevis in annular groove on head of the inlet needle 936RA030 VA 1 The spring must locate in the control lever s nipple Check that inlet needle and spring are properly seated Install in the reverse sequence Remove the metering diaphragm b 9 3 3 Take care not to damage the fixed jet with the screwdriver The fixed jet cannot be removed on carburetors not listed below Clean the j...

Страница 50: ...936RA086 1 The pump diaphragm 1 and gasket 2 are held in position by the pegs arrows on the end cover 3 VA 932RA259 3 2 1 Carburetor has no high speed screw H The carburetor is tuned so that the engine receives an optimum fuel air mixture under all operating conditions Emissions at idle speed and part load are reduced by limiting the flow of idle mixture Standard setting When adjusting from scratc...

Страница 51: ... Mount the cutting tool attachment or CombiTool KM properly Clean or replace the air filter if necessary b 9 1 Clean or replace the spark arresting screen if necessary b 5 3 Carefully turn the idle speed screw LD counterclockwise down onto its seat Then open it two full turns Adjusting idle speed Carry out standard setting 936RA440 VA Start the engine and allow it to warm up Engine stops while idl...

Страница 52: ...it to warm up Use the idle speed screw LA to adjust idle so that the tool does not run A minor correction may be necessary when operating at high altitude or at sea level Note that even very slight corrections to the high speed screw H produce a noticeable change in engine running behavior Carry out the standard setting Start the engine and allow it to warm up Open the throttle wide At high altitu...

Страница 53: ...is necessary to carry out the basic setting Removing short limiter cap Push puller 2 5910 890 4501 open side facing you between the limiter cap 1 and carburetor body and pry the cap off If the limiter cap is stuck on the screw turn the puller over so that its VA 932RA316 1 2 open side faces the carburetor body Pry off the limiter cap Removing long limiter cap Use suitable pliers to pull off the li...

Страница 54: ...ps Limiter caps that have been removed once may be damaged and must not be re used Installing short limiter cap Line up the new cap for the high speed screw H against the rich stop and press it on only as far as the second noticeable detent position VA 249RA129 270 The stop limits the adjustment range of the high speed screw H to a 3 4 turn Do not press the cap against the carburetor body as it wi...

Страница 55: ... place through the hole in the cap the holes in the valve body the sintered filter and the hole in the filler cap VA 936RA176 Testing Remove the shroud b 5 1 Pull fuel hose 1 off the elbow connector on the fuel pump flange VA 936RA165 1 2 Pull the fuel hose 2 off the elbow connector on the carburetor Seal fuel hose 1 with a suitable plug Connect pressure hose of carburetor crankcase tester 1106 85...

Страница 56: ...y eventually become clogged with minute particles of dirt This restricts the passage of fuel and results in fuel starvation In the event of trouble with the fuel supply system always check the fuel tank and the pickup body first Clean the fuel tank if necessary Drain the fuel tank Remove the rewind starter b 6 2 Pull the fuel hoses off the elbow connectors on the carburetor b 9 2 2 Dispose of fuel...

Страница 57: ... the fuel hose Fit a new pickup body Install in the reverse sequence VA 936RA180 Fuel tank Remove the fuel tank Remove the fuel hoses if necessary Install in the reverse sequence VA 936RA182 The lugs 1 must engage the plugs 2 VA 936RA183 2 1 Fuel hoses Unscrew the filler cap and remove it together with the cap retainer Use hook 1 5910 893 8800 to pull out the pickup body VA 936RA184 1 Pull the pic...

Страница 58: ... 5 with screws 6 To replace left grip carefully cut it open and pull it off Use protective jaws prism jaws to clamp the bike handle in a vise Coat inside of opening in new grip with a little STIHL press fluid b 12 Push the grip into position so that the longer ends arrows point towards the gearbox at an angle of 10 15 degrees to the drive tube FH 75 HL 75 KW 85 only Take out the screws 1 Remove th...

Страница 59: ...reverse sequence Position the loop handle about 20 cm distance A forward of the control handle and tighten it down firmly FC 75 85 FS 75 only Take out the screw 1 pull out the clamp block 2 and remove the loop handle 3 from the drive tube VA 936RA199 3 1 2 To replace the handle hose take out the screw VA 936RA200 Turn the top of the loop handle to one side and pull off the handle hose Install in t...

Страница 60: ...of the drive tube FS 85 only VA 936RA205 A hollow lightweight shaft with a diameter of 8 mm was installed in the FS 85 for a period If the drive shaft is faulty use the 6 mm diameter solid shaft as a replacement Make sure the flexible liner is changed at the same time The 8 mm diameter hollow lightweight shaft is still used but only in the FS 85 RX USA CAN version Drive shaft in FS 75 80 FC 75 Pul...

Страница 61: ...haft Use hook 1 5910 890 2800 to pull out the plug VA 936RA172 1 Pull out the flexible liner The hole 1 must be between the spokes 2 Fit the plug and then the drive shaft The drive shaft in the upper end of the drive tube is supported in a flexible liner The top end of the flexible liner is sealed with a plug and the bottom end with a sleeve Loosen the wing screw 1 Pull the lower end of the drive ...

Страница 62: ...ng Fit the clips VA 936RA063 3 1 2 Before installing the drive shaft coat it with STIHL gear lubricant 0781 120 1109 b 12 Apply the lubricant evenly to the drive shaft Never pump lubricant directly into the drive tube Push the drive shaft 1 with sleeve 2 into the drive tube Press down the lock button arrow and push the sleeve 2 home as far as stop VA 936RA064 2 1 Push the coupling sleeve 1 onto th...

Страница 63: ... screw 1 out of the AV sleeve Loosen the clamp screw 2 VA 936RA233 1 2 Pull out the drive tube On loop handled machines pull the drive tube 1 out of the control handle 2 at the same time VA 936RA210 2 1 Pull off the throttle cable retainer if fitted VA 936RA211 Remove the screw arrow from the carrying ring Pull the carrying ring apart and take it off the drive tube FH 75 HL 75 only VA 936RA266 Loo...

Страница 64: ... handle up to 2002 Loosen the clamp screws arrows in the control handle VA 936RA066 Version with loop handle from 2002 Loosen the clamp screws arrows in the control handle VA 936RA313 Take the fixing screw 1 out of the AV sleeve Loosen the clamp screw 2 VA 936RA233 1 2 Pull out the drive tube On loop handled machines pull the drive tube 1 out of the control handle 2 at the same time VA 936RA210 2 ...

Страница 65: ...ew firmly b 3 2 VA 936RA243 Loosen the screw 1 on the clamp 2 Pull the deflector off the bearing housing 936RA348 VA 2 1 Loosen the screw 1 on the clamp 2 on the bearing housing Remove the clamp VA 936RA349 1 2 Take out the fixing screw arrow Pull the bearing housing off the drive tube VA 936RA351 Remove the circlip from the output shaft VA 936RA352 Remove the washer from the output shaft VA 936RA...

Страница 66: ...4119 893 7200 butts against the bearing housing 3 VA 935RA356 3 1 2 Press home the needle sleeve until the press arbor 1 4119 893 7200 butts against the bearing housing 2 VA 936RA357 2 1 Push the bearing housing onto the drive tube Make sure the holes arrows are in alignment Insert the fixing screw and tighten it down firmly VA 936RA358 Line up the recess arrow in the neck of the deflector with th...

Страница 67: ...5910 893 8800 Removing pickup body pulling plug out of drive tube 13 Assembly stand 5910 890 3100 Mounting machine to workbench 14 Clamp 5910 890 8800 Holding FS units by drive tube for repairs in conjunction with assembly stand 15 Nipple 0000 855 9200 Testing carburetor for leaks 16 T handle screwdriver T 27x150 5910 890 2400 IS screws 4 17 Vacuum pump 0000 850 3501 Testing crankcase for leaks te...

Страница 68: ...hcutters 0781 120 1117 Drive shaft in flexible liner FS 75 5 Dirko HT rot sealant 90 g tube 0783 830 2000 Crankcase oil seals outside 6 Standard commecial solvent based degreasant containing no chlorinated or halogenated hydrocarbons Cleaning sealing faces 7 STIHL OH 723 press fluid 100 ml bottle 0781 957 9000 Handle hose on drive tube AV rubber element in fan housing 8 Graphite grease Peg on pawl...

Страница 69: ...68 FC 75 FC 85 FH 75 FS 75 FS 80 FS 85 HL 75 KM 85 KW 85 ...

Страница 70: ...englisch english 0455 394 0123 M7 F4 Sä Printed in Germany ...

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