GreenWorks LMC406 Lawn Mower Manual

The GreenWorks LMC406 is a powerful 40V cordless lawn mower designed for efficient grass cutting. It features a 20-inch steel deck, 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: 40V battery power, 20-inch cutting deck, 5-position height adjustment, and a foldable handle for easy storage.

FeatureDescription
40V Lithium-Ion BatteryProvides cordless convenience and longer run time.
20-Inch Steel DeckDurable construction for efficient cutting.
5-Position Height AdjustmentAllows customization of cutting height from 1 inch to 3.5 inches.
Foldable HandleFor compact storage and easy transport.
Safety KeyPrevents accidental starting of the mower.

Safety Information

Read all safety instructions before operating the mower. Always wear appropriate footwear and eye protection. Keep children and pets away from the mowing area.

Assembly Instructions

Follow these steps to assemble your GreenWorks LMC406 lawn mower:

  1. Attach the handle to the mower body using the provided screws.
  2. Connect the battery charger to the battery and plug it into an outlet.
  3. Ensure all parts are securely fastened before use.

Specifications

Operating Instructions

To operate the mower, follow these steps:

  1. Insert the safety key into the ignition slot.
  2. Press the safety switch and pull the start lever to start the mower.
  3. Adjust the cutting height as needed.
  4. Move the mower in a straight line for even cutting.

Maintenance

Regular maintenance is essential for optimal performance:

Troubleshooting

SymptomPossible CauseCorrective Action
Mower won't startBattery not chargedCharge the battery fully before use.
Uneven cuttingBlades dullSharpen or replace the blades.
Battery drains quicklyOld batteryReplace the battery if it's no longer holding a charge.
Handle feels looseLoose screwsTighten all screws and bolts.

Warranty Information

This product is covered by a 4-year limited warranty. For warranty claims, please contact GreenWorks customer service.

GreenWorks LMC406 Lawn Mower Manual © - All Rights Reserved 2026