Stihl FS 38 Instruction Manual
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Stihl FS 38 Instruction Manual

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STIHL FS 38
Instruction Manual

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  • Page 1 STIHL FS 38 Instruction Manual...

  • Page 3: Table Of Contents

    English Contents Dear Customer, Guide to Using this Manual Safety Precautions and Working Thank you for choosing a quality engineered STIHL product. Techniques Approved Combinations of Cutting It has been built using modern Attachment, Deflector, Handle and production techniques and Harness comprehensive quality assurance.

  • Page 4: Guide To Using This Manual

    Engineering improvements ual before first use and keep it in a safe place for Operate decompression future reference. Non- STIHL's philosophy is to continually valve observance of the improve all of its products. For this instruction manual may reason we may modify the design,...
  • 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 38...
  • Page 6 The cutting attachment must automatically to the idle position. Your power tool comes standard with be clear of the ground and all other either a screw-type or bayonet-type fuel obstructions because it may begin to run cap. when the engine starts. FS 38...
  • Page 7 The correct engine idle speed is poorly ventilated loca- important to ensure that the cutting tions, even if your model attachment stops rotating when you let is equipped with a cata- go of the throttle trigger. lytic converter. FS 38...
  • Page 8 To reduce the risk of injury, always turn operating your power tool if it is off the engine before adjusting the nylon damaged. In case of doubt, have the unit line of manually adjustable mowing checked by your servicing dealer. heads FS 38...
  • Page 9 Maintenance and Repairs Use only a spark plug of the type cutting lines reduces the motor's approved by STIHL and make sure it is operating speed. The clutch then slips in good condition – see "Specifications". Service the machine regularly. Do not...
  • Page 10 If the wear limit marks are ignored, there from thrown parts of the head. is a risk of the cutting tool shattering and flying parts injuring the operator or STIHL PolyCut 6-3 Mowing Head with bystanders. Polymer Blades To reduce the risk of accidents from shattered blades, avoid contact with stones, metal and similar solid objects.

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

    For safety reasons no other combinations are permitted – risk of accidents. Harness Cutting Attachments Shoulder strap may be used Mowing heads STIHL AutoCut C 52 STIHL AutoCut 5-2 STIHL FixCut 5-2 STIHL DuroCut 5-2 STIHL PolyCut 6-3 FS 38...

  • Page 12: Mounting The Loop Handle

    (5) from the other side and tighten it down firmly. Adjusting loop handle to most comfortable position Loosen the screw (5). Move the loop handle along the drive tube as required. Tighten down the screw (5) firmly. FS 38...
  • Page 13 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 14 English STIHL AutoCut 5-2 STIHL AutoCut C 5-2 Slip the mowing head (2) over the shaft (5) and engage hex recess (7) Fit the spring (1) in the mowing Slip the mowing head (2) on to the on the external hexagon (6).
  • Page 15 English STIHL PolyCut 6-3 STIHL FixCut 5-2 NOTICE Remove the tool used to block the shaft. Remove the mowing head. STIHL AutoCut Hold the mowing head steady. Unscrew the cap counterclockwise. STIHL PolyCut Block the shaft. Unscrew the mowing head counterclockwise.

  • Page 16: Fuel

    Mixing fuel protected against light and sunlight. Use only high-quality two-stroke engine oil – ideally STIHL HP, HP Super or Fuel mixture ages – mix only as much as HP Ultra two-stroke engine oil, as they needed for a few weeks. Do not store...

  • Page 17: Fueling

    Position the machine so that the filler cap is facing up. Open the filler cap. Take care not to spill fuel while fueling and do not overfill the tank. STIHL recommends you use the STIHL filler Stop switch nozzle (special accessory).
  • Page 18 – your thumb Now release the throttle trigger, should be under the fan housing. tongue and trigger lockout in that order. This is the starting throttle position. NOTICE Do not stand or kneel on the drive tube. FS 38...
  • Page 19 If the engine does not start Start the engine. Continue cranking. Choke lever If you did not move the choke lever to e quickly enough after the engine began to fire, the combustion chamber is flooded. FS 38...

  • Page 20: Operating Instructions

    Empty the fuel tank the filter. and keep the machine in a dry place, well away from sources of ignition, until you need it again. For longer out-of- service periods – see "Storing the Machine". FS 38...

  • Page 21: Adjusting The Carburetor

    3/4 turn). Is range of adjustment more than 1 turn? Turn the low speed screw (L) FS 38 – Different Standard Settings Continue with "Standard setting A" carefully clockwise until it is against its seat, then turn it back 1 1/2 turns.
  • Page 22 English Standard setting B Standard Setting – FS 38 2-MIX Cutting attachment rotates when engine is idling Turn the idle speed screw (LA) counterclockwise until the cutting attachment stops moving and then turn the screw another 1/2 to 1 full turn in the same direction.

  • Page 23: Spark Plug

    Install Fine Tuning for Operation at High only suppressed spark plugs of the Altitude type approved by STIHL – see "Specifications". Clean dirty spark plug. A slight correction of the setting may be Check electrode gap (A) and...

  • Page 24: Engine Running Behavior

    Do not pull the rope over the edge of servicing dealer. the guide bushing. WARNING STIHL recommends that you have Do not pull out the rope more than If the spark plug comes with a servicing and repair work carried out specified.

  • Page 25: Storing The Machine

    Keep the instructions for the mowing head in a safe place. WARNING If necessary, remove the mowing To reduce the risk of injury, always shut head. off the engine before adjusting the mowing line by hand. FS 38...
  • Page 26 (1) counterclockwise Fit the empty spool in the mowing until it can be removed. head. STIHL DuroCut, STIHL FixCut Pull the spool (2) out of the mowing If the spring (4) has popped out: head (3) and remove the remaining WARNING line.
  • Page 27 English Winding line onto spool STIHL AutoCut 5-2 Removing remaining nylon line Hold the mowing head steady. Use green-coded nylon line with a Rotate the spool counterclockwise until the shortest line is about 10 cm diameter of 2.0 mm (0.08 in).
  • Page 28 Check that the spring is installed (see Mount the mowing head on the "Mounting the Mowing Head"). machine. Replacing Cutting Blades STIHL PolyCut Always check the mowing head for signs of wear before installing new cutting blades. FS 38...

  • Page 29: Inspections And Maintenance By Dealer

    Maintenance Work The thermoplastic cutting blades are referred to as "blades" in the following. STIHL recommends that you have The mowing head is supplied with servicing and repair work carried out illustrated instructions for replacing the exclusively by an authorized STIHL blades.

  • Page 30: Maintenance And Care

    Spark plug Replace after every 100 operating hours Visual Inspection Cooling inlets Clean Have checked by dealer Spark arresting screen in muffler Have cleaned or replaced by servicing dealer All accessible screws and nuts (not adjust- Retighten ing screws) FS 38...
  • Page 31 (very dusty work area, etc.), shorten the specified intervals accordingly. Visual Inspection Cutting Attachment Replace Check tightness Safety labels Replace STIHL recommends a STIHL servicing dealer. not in all versions, market-specific FS 38...

  • Page 32: Minimize Wear And Avoid Damage

    Among other parts, this maintained and stored with the due care includes: and attention described in this owner's STIHL recommends that you have manual. servicing and repair work carried out Cutting attachments (all types) –...

  • Page 33: Main Parts

    10 Machine support 11 Fuel pump 12 Carburetor adjusting screws 13 Starter grip 14 Spark plug boot 15 Muffler (with spark arrestor in some markets) 16 Line limiting blade 17 Deflector 18 Mowing head 19 Drive tube Serial number FS 38...

  • Page 34: Specifications

    Handle, right Single cylinder two-stroke engine Electrode gap: 0.5 mm 6.0 m/s 8.0 m/s FS 38 Fuel System FS 38 2-MIX Displacement: 27.2 cc All position diaphragm carburetor with Bore: 34 mm Sound pressure level L to ISO 22868 integral fuel pump...

  • Page 35: Special Accessories

    When repairing the machine, only use Use cutting attachments only as replacement parts which have been specified in the chapter on "Approved approved by STIHL for this power tool or Combinations of Cutting Attachment, are technically identical. Only use high- Deflector, Handle and Harness".

  • Page 36: Disposal

    Model: FS 38 Serial identification: 4140 Displacement: 27.2 cm STIHL products must not be thrown in Thomas Elsner conforms to the specifications of the garbage can. Take the product, Directives 2006/42/EC, 2004/108/EC Director Group Product Management accessories and packaging to an...
  • Page 37 English FS 38...
  • Page 38 English FS 38...
  • Page 40 0458-234-0121-B englisch www.stihl.com *04582340121B* 0458-234-0121-B...

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