Stihl SR 450 Instruction Manual
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Stihl SR 450 Instruction Manual

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  • Page 1 STIHL SR 430, 450 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. SR 430, SR 450...

  • Page 4: Guide To Using This Manual

    Engineering improvements instruction manual may result in serious or even fatal injury. Operate manual fuel STIHL's philosophy is to continually pump improve all of its products. For this Observe all applicable local safety reason we may modify the design, regulations, standards and ordinances.
  • Page 5 Do not operate the unit if you are under explicitly approved for this power tool by the influence of any substance (drugs, STIHL or are technically identical. If you alcohol) which might impair vision, have any questions in this respect, dexterity or judgment.
  • Page 6 Before filling up, close the valve – on the label. Wear a suitable respirator. lever and, on SR 450 only, the metering lever. Wear hearing protection, e.g. earplugs Mixing the spray solution or ear muffs. When filling from central water –...
  • Page 7 – reduce the risk of serious disposal regulations. of fatal burn injuries, do liquids hotter than 50°C – not start or run the engine until leak is fixed. SR 430, SR 450...
  • Page 8 SR 450 only, – the metering lever is closed SR 430, SR 450...
  • Page 9 During Operation Dusting and spreading mode – SR 450 only In the dusting and spreading mode, plant protection products can be applied in powder form or as dry granulate up to a grain size of 5 mm.
  • Page 10 STOP or 0. and benzol. Never oper - Close the valve lever and, on SR 450 Never leave a running power tool ate the power tool in only, the metering lever.

  • Page 11: Assembling The Unit

    The force with which the handles plug removed since there is otherwise a – SR 450, come connected ready for use are held (a tight grip restricts risk of fire from uncontained sparking. and must not be kinked while circulation).
  • Page 12 (4). Line up the marks on the hose clamp (1) and blower tube (2) – as shown. Secure the hose clamp (1) with the screw (5) – the blower tube (2) must still rotate. SR 430, SR 450...
  • Page 13 English Fitting the antistatic system – SR 450 Adjusting and securing the control only handle Put the machine on your back and adjust the harness – see "Harness". Push narrow hose clamp (3), marks facing left, onto the elbow (4).

  • Page 14: Adjusting The Throttle Cable

    Use the retainer (4) to secure the assembled. hose and throttle cable, and metering unit's operating cable on the SR 450, to the 6th pleat (arrow) on the pleated hose. Pull the ends of the straps downwards to tighten the harness.

  • Page 15: Fuel

    Use only high-quality two-stroke engine STIHL MotoMix uses STIHL HP Ultra location protected from light and the sun. oil – preferably STIHL HP, HP Super or two-stroke engine oil for an extra long Fuel mix ages – only mix sufficient fuel HP Ultra, which are specially formulated engine life.

  • Page 16: Fueling

    (about 1/8 turn) and remove. Filling up with fuel Take care not to spill fuel while fueling and do not overfill the tank. STIHL Bayonet fuel cap recommends you use the STIHL filler nozzle for fuel (special accessory). SR 430, SR 450...

  • Page 17: Information Before You Start

    It springs back to the run position. The ignition is again ready for Take care not to spill fuel while fueling operation. and do not overfill the tank. STIHL recommends you use the STIHL filler nozzle (special accessory). SR 430, SR 450...

  • Page 18: Starting / Stopping The Engine

    To disengage the travel limiter, feed. Return the setting lever (1) to the run position F. Additionally on SR 450: Throttle lock Press the manual fuel pump bulb (3) at least five times – even if the bulb is filled with fuel.
  • Page 19 Do not pull out the starter rope to full length – it might otherwise break. Do not let the starter grip snap back. Guide it slowly back into the housing so that the starter rope can rewind properly. Continue cranking until the engine runs. SR 430, SR 450...

  • Page 20: Operating Instructions

    If the engine does not start Check that all settings are correct. Check that there is fuel in the tank and refuel if necessary. Check that the spark plug boot is properly connected. Repeat the starting procedure. SR 430, SR 450...

  • Page 21: Calculating Required Quantity Of Solution

    The values determined above and a working width of 4 meters require the Carry out a trial run with the machine following setting on the metering unit: fueled and the container filled with water. Operate the spray tube (swing it SR 430, SR 450...

  • Page 22: Metering Unit

    Position B (valve lever horizontal, down) – closed Metering knobs The scope of supply includes metering knobs which allow a wide range of different discharge rates. Standard equipment in some markets or available as special accessory SR 430, SR 450...
  • Page 23 0.12 0.10 Checking flow rate Place the unit on the ground. Pry the strainer out of its seat – as Fill the container with water up to shown. 10 liter mark. included with ULV metering knob SR 430, SR 450...

  • Page 24: Dusting And Spreading Mode

    Position B (metering level parallel to blower tube) – feed open Discharge rates The discharge rate is dependent on the density and grain size of the product used. Granulate 0 - 9 kg/min Powder 0 - 3 kg/min SR 430, SR 450...
  • Page 25 Hook the lever (3) over the bar (5) on the solution container. Insert a suitable tool (e.g. screwdriver) in the two recesses (arrows) to loosen the strainer (1). Pull the strainer (1) upward and out of the solution container. SR 430, SR 450...

  • Page 26: Filling The Container

    Insert a screwdriver into the tab (1) of the hose clamp (2) on the control handle. Turn the screwdriver clockwise to loosen the hose clamp (2). Pull the hose (3) off the stub. SR 430, SR 450...

  • Page 27: Working

    English Dusting and spreading mode – SR 450 Working only Mistblowing The metering lever on the SR 450 must be closed when operating in the mistblowing mode – see dusting and spreading mode. Pour thoroughly mixed spray solution into the container through Adjust discharge rate with the the strainer.

  • Page 28: After Finishing Work

    – for targeted treatment of low- – follow maker's instructions. growing crops. Helps reduce Allow the machine to dry with the problem of spray mist being carried cap removed. away by the wind when spraying downwards. SR 430, SR 450...

  • Page 29: Storing The Machine

    UV rays can make the water and a brush. container material brittle, which could result in leaks or breakage. After dusting and spreading – SR 450 only Run the unit until the solution container is completely empty Close the metering lever.

  • Page 30: Replacing The Air Filter

    "Adjusting the Throttle Cable". Check the spark arresting screen (not in all models, country-specific) in the muffler and clean or replace if necessary. Turn the choke knob to c . Loosen the screws (1). Remove the filter cover (2). SR 430, SR 450...

  • Page 31: Spark Plug

    – or sooner if the accelerates smoothly. electrodes are badly eroded. Install only suppressed spark plugs of the Erratic idling behavior type approved by STIHL – see Idle setting is too rich "Specifications". Turn high speed screw (H) Turn the low speed screw (L)

  • Page 32: Engine Running Behavior

    Have the muffler checked for contamination (carbonization) by your servicing dealer. STIHL recommends that you have Clean dirty spark plug. servicing and repair work carried out exclusively by an authorized STIHL Check electrode gap (A) and servicing dealer.

  • Page 33: Maintenance And Care

    Visual inspection (condition, leaks) Solution container and hose – SR 430 Clean Visual inspection (condition, leaks) Solution container, metering unit and hose – SR 450 Clean Strainer in container Clean or replace Metering unit on blower tube Check SR 430, SR 450...
  • Page 34 Check Anti-vibration elements Have replaced by servicing dealer Check Blower air intake screen Clean Check Antistatic system – SR 450 Replace Safety labels Replace not in all versions, market-specific STIHL recommends an authorized STIHL servicing dealer. SR 430, SR 450...

  • Page 35: Minimize Wear And Avoid Damage

    English servicing dealer. STIHL dealers are Minimize Wear and Avoid regularly given the opportunity to attend Damage training courses and are supplied with the necessary technical information. Observing the instructions in this manual helps reduce the risk of unnecessary If these maintenance operations are not wear and damage to the power tool.

  • Page 36: Main Parts

    Choke knob Starter grip 10 Tank cap 11 Fuel tank 12 Muffler 13 Antistatic system 14 Baffle screen 15 Metering knob 16 Nozzle 17 Blower tube SR 450 18 Throttle trigger 19 Control handle 20 Setting lever SR 430, SR 450...

  • Page 37: Specifications

    1300 m ratio of 1:6. Air flow rate with nozzle: 920 m For further details on compliance with Not in all versions, country-specific Vibration Directive 2002/44/EC see www.stihl.com/vib/ SR 450 only SR 430, SR 450...

  • Page 38: Maintenance And Repairs

    When repairing the machine, only use the garbage can. Take the product, replacement parts which have been accessories and packaging to an Handle, approved by STIHL for this power tool or approved disposal site for environment- right are technically identical. Only use high- friendly recycling.

  • Page 39: Ec Declaration Of Conformity

    English Done at Waiblingen, 16.03.2016 EC Declaration of Conformity ANDREAS STIHL AG & Co. KG ANDREAS STIHL AG & Co. KG Badstr. 115 D-71336 Waiblingen Germany confirms that the product described below Thomas Elsner Director Product Management and Category: Sprayer...
  • Page 40 0458-454-0121-E englisch www.stihl.com *04584540121E* 0458-454-0121-E...

This manual is also suitable for:

Sr 430

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