Ryobi RLM36B51SP Lawn Mower Manual

The Ryobi RLM36B51SP is a powerful cordless lawn mower designed for efficient grass cutting with a 36V battery system. It features a 51 cm cutting width, adjustable cutting heights, and a lightweight design for easy maneuverability. This manual provides essential information on safety, features, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Safety Information 3. Assembly Instructions 4. Specifications 5. Operating Instructions 6. Maintenance 7. Troubleshooting 8. Warranty Information

Features at a Glance

Key features include a 36V lithium-ion battery, 51 cm cutting deck, 5 adjustable cutting heights, and a foldable handle for easy storage.

FeatureDescription
36V Lithium-Ion BatteryLong-lasting power for extended mowing sessions
51 cm Cutting DeckWide cutting area for faster mowing
Adjustable Cutting Heights5 height settings for customized grass length
Lightweight DesignEasy to maneuver and transport
Foldable HandleConvenient storage and transport

Safety Information

Always wear appropriate safety gear, including gloves and eye protection. Ensure the area is clear of debris before mowing.

WARNING! Keep hands and feet away from the cutting blade.

Assembly Instructions

Follow these steps to assemble your lawn mower:

  1. Attach the handle to the mower body using the provided screws.
  2. Connect the battery pack to the mower.
  3. Ensure all parts are securely fastened before use.

Specifications

Operating Instructions

To operate the mower, ensure the battery is fully charged, adjust the cutting height, and press the start button to begin mowing.

Maintenance

Regularly check the blade for sharpness and clean the mower after each use. Store in a dry place.

Troubleshooting

SymptomPossible CauseCorrective Action
Mower won't startBattery not chargedCharge the battery fully before use.
Uneven cuttingBlade dull or damagedSharpen or replace the blade.
Excessive vibrationLoose partsTighten all screws and bolts.

Warranty Information

This product comes with a 3-year warranty covering manufacturing defects. For more details, please refer to the warranty card included in the package.

Ryobi RLM36B51SP Lawn Mower Manual © - All Rights Reserved 2026