Ryobi RCS3845 Original Instructions Manual
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Ryobi RCS3845 Original Instructions Manual

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ORIGINAL INSTRUCTIONS
Petrol Chainsaw
RCS3845

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Summary of Contents for Ryobi RCS3845

  • Page 1 ORIGINAL INSTRUCTIONS Petrol Chainsaw RCS3845...
  • Page 2 Important! It is essential that you read the instructions in this manual before assembling, operating, and maintaining the product. Subject to technical modification.

  • Page 3: Intended Use

    Safety, performance, and dependability have been given ■ Do not wear loose fitting clothing, short trousers or top priority in the design of your petrol chainsaw. jewellery of any kind. ■ Secure long hair so it is above shoulder level to prevent INTENDED USE entanglement in moving parts.

  • Page 4: Chainsaw Safety Warnings

    reduce the potential for injury to the face and head if CHAINSAW SAFETY WARNINGS kickback occurs. ■ Always fit the guide bar cover when the product is not in ■ An incorrectly tensioned chain can jump off the guide use or being carried or transported. This will help reduce bar and could result in serious injury or fatality.

  • Page 5: Adjusting The Chain Tension

    ADJUSTING THE CHAIN TENSION clean container approved for petrol. See page 27. ■ The engine is certified to operate on unleaded petrol intended for automotive use with an octane rating of 91 1. Stop the engine. Wear protective gloves. Disengage or higher.

  • Page 6: Starting The Product

    If engine does not start after 5 pulls, use ■ The manufacturer recommends you use only RYOBI cold engine starting procedure. chainsaw lubricating oil. (Available from your authorised service centre) 6.

  • Page 7: Checking The Clutch

    enables better control of the chainsaw in unexpected WARNING situations. When the throttle trigger is released and the engine is ■ Only use replacement bars and chains specified running at idle speed, the saw chain must not move. If by the manufacturer. Incorrect replacement bars and it does continue to move there is risk of severe injury to chains may cause chain breakage and/or kickback.

  • Page 8: Transportation And Storage

    ■ Felling back cut saw to bounce towards you or bind up with enough force to cause a kickback. The best tool for that kind of work is See page 19 - 20. a hand saw, pruning shears, an axe or other appropriate Make the felling back cut at least 5 cm.

  • Page 9: Maintenance Schedule

    replace and tighten the chain lubricant cap. checking and adjustment. ■ Always fit guide bar cover before storing the product, or ■ After each use, clean the product with a soft dry cloth. during transportation. ■ Check all nuts, bolts, and screws at frequent intervals ■...

  • Page 10: Residual Risk

    SAFETY DEVICES Chain brake Every 5 hours* LOW KICKBACK SAW CHAIN Replace spark plug Yearly A low-kickback saw chain helps to reduce the possibility of Replace fuel filter Yearly a kickback event. * Hours of Operation The rakers (depth gauges) ahead of each cutter can minimize the force of a kickback reaction by preventing the RESIDUAL RISK cutters from digging in too deeply.

  • Page 11: What's In The Box

    WHAT’S IN THE BOX The guaranteed sound power level is RCS3845 115 dB ■ Chainsaw x1 ■ Guide bar cover x1 ■ Combination wrench x1 Run position ■ Operator’s manual x1 ■ Engine oil (76 ml) x1 ■ Chain and bar oil (76 ml) x1...

  • Page 12: Symbols In This Manual

    CAUTION Moving direction of the chain Indicates a potentially hazardous situation, which, if not avoided, may result in minor or moderate injury. CAUTION Engage the chain brake to stop the Without safety alert symbol chain. Indicates a situation that may result in property damage. SYMBOLS IN THIS MANUAL Mix fuel outdoors where there are no sparks or flames.
  • Page 14 WHAT’S IN THE BOX RCS3845...

  • Page 15: Know Your Product

    Know your product KNOW YOUR PRODUCT 1. Front hand guard/Chain brake 11. Switch 2. Front handle 12. Starter grip 3. Rear handle 13. Chain catcher 4. Chain lubricant cap 14. Primer bulb 5. Fuel mix cap 15. Throttle trigger 6. Silencer 16.

  • Page 16: Getting Started

    GETTING STARTED Personal protective equipment (PPE) Remove the guide bar cover. Good quality personal protective equipment, as used by professionals, will help reduce the risk of injury to the operator. 1. Fully press and release the primer bulb at least 10 When the temperature is above 10°C, pull the starter grip times.
  • Page 17 GETTING STARTED GETTING STARTED GETTING STARTED GETTING STARTED (50 : 1) Disengage the chain brake. Make sure the bar mounting nuts are loosened to finger- To increase the chain tension, turn the chain tensioning Tighten the bar mounting nuts by turning them clockwise Pre-mix unleaded petrol and 2-cycle engine lubricant in a 1.
  • Page 19 OVERVIEW Felling a tree Bucking a log Removing buttress roots p.19 p.20 p.21 Chain replacement Start warm engine Limbing a tree p.25 p.23 p.22...
  • Page 20 OVERVIEW Cleaning the air filter Cleaning the chain brake Adding oil to the air filter p.31 p.32 p.34 Transportation p.36 Chain tensioning Spark plug replacement Storage p.28 p.27 p.38...

  • Page 21: Operation

    OPERATION Felling a tree WARNING: Maintain a firm grip, with thumbs and fingers encircling the chainsaw handles, with both hands on the saw and position your body and arm to allow you to resist kickback forces. Kickback forces can be controlled by the operator, if proper precautions are taken.
  • Page 22 OPERATION WARNING: Do not cut through the hinge. 2. As the felling gets close to the hinge, the tree should begin to fall. If there is any chance that the tree may not fall in desired direction or it may rock back and bind the saw chain, stop cutting before the felling back cut is complete and use wedges of wood, plastic or aluminium to...
  • Page 23 OPERATION Bucking a log WARNING: Kickback may occur when the nose or tip of the guide bar touches an object, or when the wood closes in and pinches the saw chain in the cut. WARNING: The reaction force is always opposite to the direction the chain is moving.
  • Page 24 OPERATION Limbing a tree WARNING: Do not stand on any unstable surface while using the product. This could include, but is not limited, to ladders, scaffolds, and trees. NOTE: Limbing is removing the branches from a fallen tree. When limbing leave larger lower limbs to support the log off the ground.
  • Page 25 OPERATION Start warm engine 1. Engage the chain brake. 2. Pull the choke lever all the way out to the full-choke position. 3. Push the choke lever to the half-choke position. 4. Pull starter grip until engine runs, but no more than 5 times.
  • Page 26 OPERATION 5. Depress the trigger release and squeeze the throttle trigger, then release the throttle trigger to return the engine to idle. If engine does not start after 5 pulls, use the cold engine starting procedure. 6. Before accelerating the engine or cutting wood, make sure the chain brake is disengaged by pulling the front hand guard/chain brake back.
  • Page 27 OPERATION Chain replacement 1. Stop the engine. Wear protective gloves. Disengage the chain brake. 2. Remove the bar mounting nuts using the combination wrench provided. 3. Remove the chain cover. 4. Put the new chain in the correct direction onto the bar and make sure that the drive links are aligned in the bar groove.
  • Page 28 OPERATION 5. Attach the bar to the chain saw and loop the chain around the drive sprocket. Replace the chain cover and bar mounting nuts. Finger-tighten the bar mounting nuts. The bar must be free to move for chain tension adjustment. WARNING: Adjust the chain tension.
  • Page 29 OPERATION Chain tensioning 1. Stop the engine. Wear protective gloves. Disengage the chain brake. 2. Make sure the bar mounting nuts are loosened to finger-tight. 3. To increase the chain tension, turn the chain tensioning screw clockwise and check the chain tension frequently. To reduce the chain tension, turn the chain tensioning screw counterclockwise and check the chain tension frequently.
  • Page 30 OPERATION Spark plug replacement The product uses a Torch L7RTC with .025 in. electrode gap. Use an exact replacement and replace every 50 hours or more frequently, if necessary. 1. Stop the engine. Engage the chain brake. 2. Pull the locking tab upwards. 3.
  • Page 31 OPERATION 5. Loosen the spark plug by turning it counterclockwise with a wrench. 6. Remove the spark plug. 7. Hand thread the new spark plug, turning it clockwise. Tighten securely with a wrench at 16 ~ 22 Nm (Turn a new spark plug 180°...
  • Page 32 OPERATION 9. Reinstall the air filter cover. Push the locking tab in place to secure the air filter cover.

  • Page 33: Maintenance

    MAINTENANCE Cleaning the chain brake 1. Stop the engine. 2. Brush as much loose dirt and sawdust from around the chain brake as possible.
  • Page 34 MAINTENANCE Adding oil to the air filter 1. Stop the engine. Engage the chain brake. 2. Pull the locking tab upwards. 3. Lift the air filter cover straight up to remove; set aside. NOTE: Blow or brush as much loose dirt and sawdust from around the carburettor and chamber as possible.
  • Page 35 MAINTENANCE 5. Lubricate the air filter with several drops of chain and bar oil. NOTE: Adding oil to the air filter enhances filtration. 6. Place the air filter on the air filter base. 7. Re-attach the air filter holder. 8. Reinstall the air filter cover. Push the locking tab in place to secure the air filter cover.
  • Page 36 MAINTENANCE Cleaning the air filter 1. Stop the engine. Engage the chain brake. 2. Pull the locking tab upwards. 3. Lift the air filter cover straight up to remove; set aside. NOTE: Blow or brush as much loose dirt and sawdust from around the carburettor and chamber as possible.
  • Page 37 MAINTENANCE 5. Lift the air filter off the air filter base. To lightly clean, tap the air filter against a smooth, flat surface to dislodge most of the sawdust and dirt particles. For a more thorough cleaning, clean in warm soapy water.
  • Page 38 TRANSPORTATION Transportation 1. Stop the engine. Engage the chain brake. Allow the product to cool down before transporting. 2. Always fit guide bar cover before storing the product, or during transportation. 3. Drain all fuel from tank into a container approved for petrol.
  • Page 39 TRANSPORTATION 5. When transporting the product, secure it against movement or falling to prevent injury to persons or damage to the product.
  • Page 40 STORAGE Storage 1. Stop the engine. Engage the chain brake. Allow the product to cool down before storing. 2. Always fit guide bar cover before storing the product, or during transportation. 3. Drain all fuel from tank into a container approved for petrol.
  • Page 41 STORAGE 5. Store the product in a cool, dry, and well-ventilated place that is inaccessible to children. Keep away from corrosive agents such as garden chemicals and de-icing salts. Do not store outdoors.

  • Page 42: Troubleshooting

    TROUBLESHOOTING Problem Possible cause Solution Engine will not start (Make No spark. The spark plug could be cracked or damaged. sure the ignition switch is in Replace the old spark plug with a new one and the "on" position). try to start again. If engine will still not start, return the product to an authorised service centre for further checking.

  • Page 43: Product Specifications

    The declared vibration value has been measured with a Petrol Chainsaw standard test method and may be used to compare one tool with another. Model RCS3845 The declared vibration value may be used in preliminary Engine capacity 38.2 cc assessment of exposure.
  • Page 44 Imported by: Techtronic Industries Australia Pty Ltd 31 Gilby Road, Mount Waverley, VIC 3149 Melbourne, Australia Techtronic Industries N.Z. Limited 2 Landing Drive, Mangere Auckland, 2022, New Zealand 960994105-02...

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