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User Manual for Ryobi RLM18X33B40, RLM18C33B25, OLM1833B Cordless Lawn Mower

Quick guide and user manual for the Ryobi cordless lawn mower. Includes safety instructions, operating tips, maintenance, and troubleshooting.

Table of contents

Manual images

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Quick guide from the manual

This cordless lawn mower is designed for domestic lawn mowing. It is a pedestrian-controlled walk-behind mower designed to be pushed by hand. Always ensure all four wheels touch the ground while mowing.

Start sequence: Press Start button, then On-off button.
Start sequence: Press Start button, then On-off button.
Product parts diagram.
Product parts diagram.

Intended Use

The cordless lawn mower is only intended for use outdoors. The cutting blade should rotate approximately parallel to the ground over which it is being wheeled. Do not use the product for any other purpose.

General Safety Warnings

  • Personal Safety: The product is capable of amputating hands and feet and throwing objects. Stay alert, watch what you are doing, and use common sense. Do not operate the product while tired or under the influence of drugs, alcohol, or medication.
  • Work Area Safety: Never use the product while people, especially children, or pets are within 15 m. Thoroughly inspect the area and remove all rocks, sticks, metal, wire, bones, toys, or other foreign objects.
  • Operation: Always use the product in daylight or with good artificial light. Do not operate in explosive atmospheres.

Battery Tools Use and Care

  • Remove the isolator key whenever you are not operating the product.
  • Remove the battery pack before making any adjustments, cleaning, or removing material.
  • Use only the battery pack and charger specified by the manufacturer.
  • Keep battery packs away from metal objects like paper clips, coins, keys, nails, or screws when not in use.

General Mowing Tips

Mowing height adjustment table.
Mowing height adjustment table.
Emptying the grass catcher.
Emptying the grass catcher.
  • For best performance, always cut off one-third or less of the total height of the grass.
  • When cutting long grass, reduce walking speed to allow for more effective cutting and proper discharge of clippings.
  • Do not cut wet grass; it will stick to the underside of the deck.
  • A higher cutting height will extend the run time of the battery.

Maintenance and Cleaning

Blade maintenance procedure.
Blade maintenance procedure.
  • Turn off the product, remove the isolator key, and the battery pack before any cleaning or maintenance.
  • Check all nuts, bolts, and screws at frequent intervals for proper tightness.
  • The blade is sharp; use extreme caution and wear heavy-duty gloves when fitting, replacing, cleaning, or checking bolt security.
  • Replace worn or damaged blades and bolts in sets to preserve balance.

Clearing Blockages

  • Turn off the product, remove the isolator key, and the battery pack.
  • Always wear heavy-duty gloves when checking or clearing a blockage.
  • Remove the grass catcher, check for and carefully clear obstructions.
  • Check the grass discharge chute for blockages and carefully clear.

Residual Risks

Even when the product is used as prescribed, it is still impossible to completely eliminate certain residual risk factors. Hazards include injury caused by vibration, noise, contact with blades, and thrown objects.

Manufacturer information

Ryobi

Brand profile

Practical help

Common problems

Product stops unexpectedly

Check for overload or overheat protection. Release the on-off button, then press to restart. If the battery is too hot, allow it to cool down.

Grass discharge chute blocked

Stop the product, remove the isolator key and battery. Wear heavy-duty gloves and clear the obstruction.

Before use

  • Check blades, blade bolts, and cutter assembly for wear or damage.
  • Ensure all four wheels are on the ground.
  • Check grass catcher for wear, holes, or deterioration.
  • Ensure the isolator key is removed before inserting the battery pack.
  • Check all nuts, bolts, and screws for proper tightness.

Specs in practice

Cutting height
Adjustable to suit current lawn conditions.
Overload protection
Automatically switches off the product if overloading is detected.

Images and diagrams

  • Start button and On-off button operation.
  • Height adjustment lever.
  • Grass catcher installation.
  • Mulching plug installation.

Model compatibility

  • Use only with battery packs specified in this manual.
  • Use only original manufacturer's replacement parts.

Manual page author

Michael Turner

Technical manual editor

Reviews PDF manuals for structure, safety notes, and practical product details so readers can find the right information quickly.