Stihl FR 350 Instruction Manual
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Stihl FR 350 Instruction Manual

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STIHL FR 350, 450, 480
Instruction Manual

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Summary of Contents for Stihl FR 350

  • Page 1 STIH) STIHL FR 350, 450, 480 Instruction Manual...

  • Page 2: Table Of Contents

    Hans Peter Stihl Lubricating the Gearbox ....34 Lubricating the Flexible Shaft ..35 Replacing Starter Rope and Rewind Spring ......35 Storing the Machine ......38 Sharpening Metal Cutting Tools ..38 STIHl FR 350, FR 450, FR 480...

  • Page 3: Guide To Using This Manual

    STIHL dealer for illustration. environment. assistance. Example: Therefore some changes, modifications Loosen the screw (1) and improvements may not be covered Lever (2) ... in this manual. FR 350, FR 450, FR 480...

  • Page 4: Safety Precautions And Working Techniques

    If you have any condition that might be accidents or damage to the machine. training in power tool operation. aggravated by strenuous work, check with your doctor before operating a power tool. FR 350, FR 450, FR 480...
  • Page 5 Wear a safety hard hat that are explicitly approved for this for thinning, in high scrub Wear proper protective clothing and power tool model by STIHL or are and where there is a equipment. technically identical. If you have any...
  • Page 6 Transporting in a vehicle: Properly screw-type or bayonet-type fuel cap. secure your unit to prevent turnover, fuel After fueling, tighten the spillage and damage. screw-type cap by hand with as much force as necessary. FR 350, FR 450, FR 480...
  • Page 7 The cutting tool must be clear damaged or the rider plate is worn of the ground and all other obstructions (i.e. label or arrows no longer because it may begin to rotate when the legible). engine starts. FR 350, FR 450, FR 480...
  • Page 8 Check and correct the idle speed setting at regular intervals. If the cutting tool still rotates, have your dealer check your brushcutter and make proper adjustments or repairs. FR 350, FR 450, FR 480...
  • Page 9 (e.g. locations, even if your model is equipped operating your power tool if it is hedgehogs). with a catalytic converter. damaged. In case of doubt, have the machine checked by your servicing dealer. FR 350, FR 450, FR 480...
  • Page 10 This causes the clutch to slip continuously and results in overheating and damage to important components (e.g. clutch, polymer housing components). There is also a risk of injury from the cutting tool rotating while the engine is idling. FR 350, FR 450, FR 480...
  • Page 11 – Exception: vibrations – they must be examined adjustment of carburetor and idle speed. regularly. FR 350, FR 450, FR 480...
  • Page 12 It is important to follow the maintenance etc. – less risk of damaging tree bark. instructions for the PolyCut cutting head! To reduce the risk of injury, never use steel wire in place of the nylon cutting line. FR 350, FR 450, FR 480...
  • Page 13 Use the brushcutter like a scythe (sweep Resharpen the cutting blade according it to the right and left) at ground level to instructions when it has dulled when cutting grass and thinning young noticeably. stands. FR 350, FR 450, FR 480...

  • Page 14: Assembling The Brushcutter

    Push the end of the flexible shaft into the powerhead coupling (3) until it engages – turn the shaft back and forth at the same time. Keep the protective caps in a safe place. FR 350, FR 450, FR 480...
  • Page 15 (8), Insert the screws in the holes Go to "Securing the Loop Handle". and screw on the square nuts (1) as far as stop. Go to "Securing the Loop Handle". FR 350, FR 450, FR 480...

  • Page 16: Adjusting The Throttle Cable

    Sleeve (10) is supplied in some flexible shaft. markets and must be between the loop handle and control handle. Throttle Cable Adjustment Go to "Adjusting the Throttle Cable". FR 350, FR 450, FR 480...
  • Page 17 Use a suitable tool to push the slide to the bottom of the slot (see illustration). Press down the trigger interlock (1) and squeeze the throttle trigger (2) (full throttle) – this sets the throttle cable correctly. FR 350, FR 450, FR 480...

  • Page 18: Approved Combinations Of Cutting Tool, Deflector And Handle

    13 Deflector for mowing heads only accidents and personal injury. 14 Deflector with 15 Skirt and blade for all mowing heads (see “Mounting the Deflector”) 16 Deflector without skirt and blade for all metal mowing tools and brush knives FR 350, FR 450, FR 480...
  • Page 19 English Cutting Tool Deflector Handle 2, 4 FR 350, FR 450, FR 480...

  • Page 20: Approved Power Tool Attachments

    Fit the plate (3) and line it up. guide slot on the skirt and line it up Insert M 5 x 18 screws and tighten with the first hole. down firmly. Fit the screw and tighten it down firmly. FR 350, FR 450, FR 480...

  • Page 21: Mounting The Cutting Tools

    If you want to mount a metal cutting tool in place of a mowing head, you will need the following additional parts: Nut (3), rider plate (4) and thrust washer (5) – see “Special Accessories”. FR 350, FR 450, FR 480...
  • Page 22 Remove the tool used to block the Remove the tool used to block the shaft. shaft. Included in scope of supply or available as special accessory, see “Special Accessories” FR 350, FR 450, FR 480...
  • Page 23 (4) and brush knife (5) – see mowing head. remaining line is still at least 6 cm long. “Mounting the Deflector” The blade on the deflector trims over- long lines to the correct length. FR 350, FR 450, FR 480...

  • Page 24: Fuel

    Cutting edges of (3) and (4) must engine oil may damage the engine, point clockwise. sealing rings, hoses and the fuel Direction of rotation is marked by an tank. arrow on the inside of the mowing head deflector. FR 350, FR 450, FR 480...
  • Page 25 Clean the fuel tank and canister and guarantees a long engine life. 0.30 (300) 0.60 (600) from time to time. If STIHL two-stroke engine oil is not 0.40 (400) 0.80 (800) Dispose of remaining fuel and available, use only quality two-stroke oil 0.50...

  • Page 26: Fueling

    Take care not to spill fuel while fueling the hose. and do not overfill the tank. STIHL Push the new pickup body into the recommends the STIHL filler nozzle hose.

  • Page 27: Fitting Backpack

    (C) by pushing it together. Use straps (3) to fix position of harness – (adjust to size). Squeeze the hooks to open the quick-action fastener (D). Back padding must fit firmly and securely against your back. FR 350, FR 450, FR 480...

  • Page 28: Starting / Stopping The Engine

    # – normal run position (5) – the decompression valve. engine is running or can start. The button must be pressed in START (6) – the ignition is switched before each starting attempt. on – the engine can start. FR 350, FR 450, FR 480...
  • Page 29 – the cutting properly. Check that the cutting attachment is attachment must not rotate when not touching the ground or any other the engine is idling object. Your machine is now ready for operation. FR 350, FR 450, FR 480...
  • Page 30 Turn the choke knob to e Set the slide control, trigger interlock and throttle trigger to the starting throttle position. Start the engine by pulling the starter rope firmly. 10 to 20 pulls may be necessary. FR 350, FR 450, FR 480...

  • Page 31: Operating Instructions

    Turn choke knob to g. Pull off the filter cover (2). Loosen the mounting screw (1). Clean away loose dirt from inside the filter cover and around the filter. Pull off the filter cover (2). FR 350, FR 450, FR 480...

  • Page 32: Adjusting The Carburetor

    Check adjustment of the throttle warm. cable and readjust if necessary – Adjust idle speed with the idle speed see "Adjusting the Throttle Cable". screw (LA) so that the cutting tool does not rotate. FR 350, FR 450, FR 480...

  • Page 33: Winter Operation

    (2) in its place. Push shutter (3) up into to underside of filter coverkels schieben. This is the winter position (top illustration). See "Guide to Using this Manual" FR 350, FR 450, FR 480...

  • Page 34: Checking The Spark Plug

    100 operating hours – or sooner if the electrodes are badly eroded. Install only suppressed spark plugs of the type approved by STIHL – see "Specifications". To reduce the risk of arcing and fire: If engine is down on power, difficult to start or runs poorly at idle speed, first check the spark plug.

  • Page 35: Engine Running Behavior

    Unscrew the filler plug (1). If no grease can be seen on the inside of the filler plug, screw the tube (2) of STIHL gear lubricant for brushcutters – see "Special Accessories" – into the filler hole. Squeeze up to 5 g grease into the gear housing.

  • Page 36: Lubricating The Flexible Shaft

    The rewind spring may pop out and uncoil during this operation. Take for hedge trimmers – see care to avoid injury. Specifications. Do not apply too much grease. If the shaft has turned blue, fit a new one. FR 350, FR 450, FR 480...
  • Page 37 (6). loop of rewind spring. it must still be possible to rotate the rotor another half turn (FR 350) or another Refit the cap in the grip. Refit the pawl (4). one and a half turns (FR 450, FR 480).
  • Page 38 Install the rope rotor as described Tension the rewind spring. under "Replacing a broken starter Fit the fan housing. rope". Tension the rewind spring. Fit the fan housing. ** See "Special Accessories" ** See "Special Accessories" FR 350, FR 450, FR 480...

  • Page 39: Storing The Machine

    In case of more serious wear well ventilated area. or nicks: Resharpen with a grinder Dispose fuel properly in accordance or have work done by STIHL dealer. with local environmental Resharpen frequently, take away as requirements. little material as possible – two or Run engine until carburetor is dry –...

  • Page 40: Maintenance Chart

    Have replaced by servicing dealer Visual inspection Cutting tool Replace Check tightness Metal cutting tools Sharpen Inspect Flexible shaft Replenish film of lubricant Check Gearbox lubrication Replenish Safety labels Replace STIHL recommends a STIHL servicing dealer FR 350, FR 450, FR 480...

  • Page 41: Minimize Wear And Avoid Damage

    (intake ports, cylinder fins). defective components. – Corrosion and other consequential damage resulting from improper storage. – Damage to the product resulting from the use of poor quality replacement parts. FR 350, FR 450, FR 480...

  • Page 42: Parts And Controls

    7 Hand guard (trigger) 8 Throttle trigger 9 Slide control 10 Shaft disconnect lever 11 Choke knob 12 Fuel pump 13 Air filter cover 14 Fuel tank 15 Fuel filler cap 16 Antivibration elements FR 350, FR 450, FR 480...
  • Page 43 17 Support frame 18 Back padding 19 Harness 20 Hip belt 22 Carburetor adjusting screws 23 Starter gripf 26 27 24 Spak plug boot 25 Decompression valve 26 Muffler 27 Spark arresting screen (not all markets) FR 350, FR 450, FR 480...

  • Page 44: Specifications

    ISO 22868 FR 480: 44 mm FR 350: 107 dB (A) FR 480: 109 dB (A) Stroke FR 350, 450, 480: 32 mm Vibration measurement a to ISO 7916 Engine power to ISO 8893 Idle speed, mowing head FR 350: 1.6 kW (2,2 bhp) Left handle FR 450: 2.1 kW (2.8 bhp)

  • Page 45: Special Accessories

    FR 480: 2.7 m/s Paper filter element Metal tool, right handle Fuel tank capacity FR 350: 1.8 m/s FR 350: 0.64 L (640 cm FR 480: 3.0 m/s FR 450, FR 480: 0.68 L (680 cm Fuel mix see chapter on "Fuel"...

  • Page 46: Maintenance And Repairs

    Flat sharpening files for 8, 9, 10 and 12 replacement parts which have been STIHL balancer for 8 to 12 approved by STIHL for this power tool Contact your STIHL dealer for the latest or are technically equivalent. Only use...

  • Page 47: Manufacturer's Certificate Of Conformity

    Directives 98/37/EC, 89/336/EEC and An independent organization has 2000/14/EC. certified that all products manufactured by STIHL meet the strict requirements of The product has been developed and the ISO 9001 standard for quality manufactured in compliance with the management systems in terms of...
  • Page 48 English FR 350, FR 450, FR 480...
  • Page 49 English FR 350, FR 450, FR 480...
  • Page 50 0458 271 0121 A englisch / English...

This manual is also suitable for:

Fr 450Fr 480

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