Stihl FS 45 Instruction Manual
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Stihl FS 45 Instruction Manual

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STIHL FS 45
Instruction Manual

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Questions and answers

Ken Enns
April 9, 2025

How do you replace the fuel filter?

0
1 comments:
Mr. Anderson
April 10, 2025

To replace the fuel filter on a Stihl FS 45:

1. Empty the fuel tank to avoid spills.
2. Use a screwdriver or similar tool to reach into the fuel tank and pull out the fuel line along with the fuel filter.
3. Remove the old fuel filter from the line.
4. Attach the new fuel filter to the fuel line.
5. Insert the fuel line with the new filter back into the tank.

No additional tools are needed if using the service kit, which includes a cardboard hook for filter removal.

This answer is automatically generated

0
barbara teare teare
February 2, 2025

to replace re wind spring

0
1 comments:
Mr. Anderson
February 10, 2025

To replace the rewind spring on a Stihl FS 45:

1. Remove the Starter Assembly: Unscrew and detach the starter cover from the trimmer.
2. Take Out the Old Spring: Carefully remove the broken or worn rewind spring from the housing.
3. Install the New Spring: Place the new rewind spring into the housing, ensuring it is seated correctly in the pocket.
4. Wind the Spring: Use a guiding tool or rod to help wind the spring into place without it unwinding.
5. Reassemble the Starter: Attach the rope pulley and tension the spring by winding it correctly.
6. Test the Recoil: Pull the starter rope to check if it retracts smoothly.
7. Reattach the Starter Assembly: Secure the cover back onto the trimmer.

Handle the spring carefully to avoid it unwinding unexpectedly.

This answer is automatically generated

0
rodney cole
May 19, 2025

what diameter replacement line is it 2mm ?

0

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Summary of Contents for Stihl FS 45

  • Page 1 STIHL FS 45 Instruction Manual...

  • Page 3: Table Of Contents

    Minimize Wear and Avoid Damage Main Parts Specifications Maintenance and Repairs Disposal EC Declaration of Conformity This instruction manual is protected by copyright. All rights reserved, especially the rights to reproduce, translate and process with electronic systems. FS 45, FS 45 C...

  • Page 4: Guide To Using This Manual

    When the power tool is not in use, shut it off so that it does not endanger others. Secure it against unauthorized use. Intake air: Winter operation The user is responsible for avoiding injury to third parties or damage to their property. Handle heating FS 45, FS 45 C...
  • Page 5 Only use cutting attachments and accessories that are explicitly approved for this power tool model by STIHL or are technically identical. If you have any FS 45, FS 45 C...
  • Page 6 – if fuel gets on Slide control / stop switch must – Start the engine at least 3 meters from your clothing, change immediately. move easily to STOP or 0. the fueling spot, outdoors only. FS 45, FS 45 C...
  • Page 7 (vehicles, windows). Even maintaining a distance Holding and Controlling the Unit of 15 meters or more cannot exclude the potential danger. Always hold the power tool firmly with both hands on the handles. FS 45, FS 45 C...
  • Page 8 Keep cutting attachment at to the approved length. during operation may be dangerous to a minimum height of 15 cm to avoid health. If the work area is very dusty or harming small animals. smoky, wear a respirator. FS 45, FS 45 C...
  • Page 9 Use only a spark plug of the type overheating and damage to important approved by STIHL and make sure it is components (e.g. clutch, polymer Service the machine regularly. Do not in good condition – see "Specifications".
  • Page 10 WARNING STIHL PolyCut 6-3 Mowing Head with Polymer Blades If the wear limit marks are ignored, there is a risk of the cutting tool shattering and flying parts injuring the operator or bystanders.

  • Page 11: Approved Combinations Of Cutting Attachment, Deflector, Handle And Harness

    For safety reasons no other combinations are permitted – risk of accidents. Shoulder strap Cutting Attachments Shoulder strap may be used Mowing heads STIHL AutoCut C 5-2 STIHL AutoCut 5-2 STIHL DuroCut 5-2 STIHL PolyCut 6-3 FS 45, FS 45 C...

  • Page 12: Mounting The Loop Handle

    Screw on the star knob (6) and tighten it down firmly. Adjusting loop handle to most comfortable position Loosen the star knob (6). Move the loop handle (1) along the drive tube as required. Tighten down the star knob (6) firmly. FS 45, FS 45 C...

  • Page 13: Mounting The Deflector

    Slide the handle to the required line up. position. Insert the screw (4) and tighten it Tighten down the screw with the down firmly. combination wrench so that the handle cannot be rotated on the drive tube. FS 45, FS 45 C...
  • Page 14 Tighten down the mowing head thrust plate back and forth if firmly. STIHL AutoCut 5-2 mowing head, necessary. STIHL AutoCut C 5-2 mowing head Pull the thrust plate (1), if fitted, off NOTICE Fitting Mowing Head with Screw the shaft (2).
  • Page 15 The individual steps are described in the clockwise at the same time. instruction sheet supplied. Turn the cap until you feel resistance and then tighten it down firmly by hand. FS 45, FS 45 C...

  • Page 16: Fuel

    Unscrew the mowing head counterclockwise. STIHL MotoMix STIHL recommends the use of STIHL MotoMix. This ready-to-use fuel mix contains no benzol or lead, has a high octane rating and ensures that you always use the right mix ratio.
  • Page 17 Use only high-quality two-stroke engine location protected from light and the sun. oil – preferably STIHL HP, HP Super or Fuel mix ages – only mix sufficient fuel HP Ultra, which are specially formulated for a few weeks work.

  • Page 18: Fueling

    Open the filler cap. Press down the throttle trigger Take care not to spill fuel while fueling lockout and hold it there. and do not overfill the tank. STIHL recommends you use the STIHL filler Squeeze the throttle trigger until the Stop switch nozzle (special accessory).
  • Page 19 Do not stand or kneel on the drive tube. Pull the starter grip slowly until you feel it engage and then pull it out slowly and steadily. NOTICE Do not pull out the starter rope all the way – it might otherwise break. FS 45, FS 45 C...

  • Page 20: Operating Instructions

    – Stopping the engine even if the bulb is filled with fuel. Set the choke knob to suit the Move the stop switch to 0. engine temperature. Start the engine. FS 45, FS 45 C...

  • Page 21: Cleaning The Air Filter

    Set the choke lever to g. Close the filter cover so that it snaps Press in the tab (1) and swing the into position. filter cover (2) down. Clean away loose dirt from around the filter. FS 45, FS 45 C...
  • Page 22 (LA) after every correction to the low speed Engine stops while idling screw (L). Turn the idle speed screw (LA) slowly clockwise until the engine runs smoothly – the cutting attachment must not rotate. FS 45, FS 45 C...

  • Page 23: Spark Plug

    Fit a new spark plug after about 100 operating hours – or sooner if the electrodes are badly eroded. Install only suppressed spark plugs of the type approved by STIHL – see "Specifications". Clean dirty spark plug. Check electrode gap (A) and Removing the Spark Plug readjust if necessary –...

  • Page 24: Engine Running Behavior

    "nylon line" or "line" in the following. The mowing head is supplied with illustrated instructions for replacing the nylon line. Keep the instructions for the mowing head in a safe place. If necessary, remove the mowing head. FS 45, FS 45 C...
  • Page 25 In normal operation, the supply of nylon line in the head is used up almost To reduce the risk of injury, always shut completely. off the engine before adjusting the nylon mowing line by hand. FS 45, FS 45 C...
  • Page 26 "Mounting the Mowing Head". Push the straight end of each line through one sleeve (5) in the mowing head (3) until you feel a noticeable resistance – and then continue pushing as far as stop. FS 45, FS 45 C...
  • Page 27 Check that the spring is installed (see "Mounting the Mowing Head"). Winding line onto spool A prewound spool (special accessory) may be used as an alternative to the following procedure. FS 45, FS 45 C...

  • Page 28: Inspections And Maintenance By Dealer

    Pull out the ends of the lines as far as stop. Mount the mowing head on the machine. Replacing Cutting Blades STIHL PolyCut Always check the mowing head for signs of wear before installing new cutting blades. FS 45, FS 45 C...

  • Page 29: Maintenance And Care

    Check idle adjustment – the cutting attachment must not rotate Carburetor Adjust idle speed Adjust electrode gap Spark plug Replace after every 100 operating hours Visual inspection Cooling inlets Clean All accessible screws and nuts (not adjust- Retighten ing screws) FS 45, FS 45 C...
  • Page 30 (very dusty work area, etc.), shorten the specified intervals accordingly. Visual inspection Cutting attachment Replace Check tightness Safety labels Replace STIHL recommends an authorized STIHL servicing dealer. FS 45, FS 45 C...

  • Page 31: Minimize Wear And Avoid Damage

    Deflectors for cutting attachments – owner, they should be performed by a servicing dealer. Clutch – STIHL recommends that you have Filters (air, fuel) – servicing and repair work carried out exclusively by an authorized STIHL FS 45, FS 45 C...

  • Page 32: Main Parts

    Tank 10 Machine support 11 Manual fuel pump 12 Carburetor adjusting screws 13 Starter grip 14 Spark plug boot 15 Muffler 16 Line limiting blade 17 Deflector 18 Mowing head 19 Drive tube Serial Number FS 45, FS 45 C...

  • Page 33: Specifications

    104 dB(A) Max. output shaft replacement parts which have been speed (cutting FS 45 C: 104 dB(A) approved by STIHL for this power tool or attachment): 9,500 rpm are technically identical. Only use high- Vibration measurement a hv,eq quality replacement parts in order to...

  • Page 34: Disposal

    Make: STIHL Director Group Product Management Model: FS 45 FS 45 C FS 45 C-E STIHL products must not be thrown in Serial identification: 4140 the garbage can. Take the product, Displacement: 27.2 cm accessories and packaging to an approved disposal site for environment- conforms to the provisions of Directives friendly recycling.
  • Page 36 0458-232-0121-E englisch www.stihl.com *04582320121E* 0458-232-0121-E...

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