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LawnMaster CLMF4821A Operator's Manual

21" 48v max* lithium-ion cordless mower
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Operator's Manual
21" 48V MAX* Lithium-Ion Cordless Mower CLMF4821A
Save this manual for future reference
* Maximum initial battery workload voltage (measured without a workload) is 48 volts (2*24 V).
Nominal voltage is 43.2 volts (2*21.6 V).
Battery Model Number is 24LB4005-CN
Charger Model Number is 24LFC15-ETL
Read all safety rules and instructions carefully before operating this tool.
Distributed By: Suzhou Cleva Electric Appliance Co., Ltd.
NO.8 Ting Rong Street 215122 Suzhou - China

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Summary of Contents for LawnMaster CLMF4821A

  • Page 1 Operator's Manual 21" 48V MAX* Lithium-Ion Cordless Mower CLMF4821A Save this manual for future reference * Maximum initial battery workload voltage (measured without a workload) is 48 volts (2*24 V). Nominal voltage is 43.2 volts (2*21.6 V). Battery Model Number is 24LB4005-CN Charger Model Number is 24LFC15-ETL Read all safety rules and instructions carefully before operating this tool.

  • Page 2: Table Of Contents

    Page TABLE OF CONTENTS SPECIFICATIONS IMPORTANT SAFETY INSTRUCTIONS SYMBOLS 10-12 KNOW YOUR LAWN MOWER 13-14 ASSEMBLY 15-21 BATTERY PACK AND CHARGER 22-24 OPERATION 25-28 MAINTENANCE 29-33 ENVIRONMENTALLY SAFE BATTERY DISPOSAL TROUBLESHOOTING 35-36 ® LAWNMASTER WARRANTY EXPLODED VIEW PARTS LIST NOTES...

  • Page 3: Specifications

    SPECIFICATIONS 48V MAX* CORDLESS MOWER Type Cordless, Battery-powered No-load Speed 3200, 3300, 3400 RPM Deck Width 21" (533 mm) Cutting Width 20" (505 mm) Height Adjustments 6 Positions (1.4"-3.4") (35-85 mm) Functions Mulching Plug, Grass Collection Bag, Side Discharge Wheel Size 6.70"...

  • Page 4: Important Safety Instructions

    IMPORTANT SAFETY INSTRUCTIONS INTRODUCTION This product has many features for making its use more pleasant and enjoyable. Safety, performance, and dependability have been given top priority in the design of this product making it easy to maintain and operate. WARNING This symbol indicates important safety instructions.
  • Page 5 IMPORTANT SAFETY INSTRUCTIONS 2) Electrical safety ■ Do not expose the lawnmower to rain or wet conditions. Water entering a lawnmower may increase the risk of electric shock. 3) Personal safety ■ Use personal protective equipment. Always wear eye protection. Protective equipment will reduce personal injuries.
  • Page 6 IMPORTANT SAFETY INSTRUCTIONS ■ Do not use the lawnmower if the switch does not turn it on and off. Any lawnmower that cannot be controlled with the switch is dangerous and must be repaired. ■ Do not operate the lawnmower in wet grass. Walk, never run. This reduces the risk of slipping and falling which may result in personal injury.

  • Page 7: Maintenance And Storage

    IMPORTANT SAFETY INSTRUCTIONS 5) Battery lawnmowers use and care ■ Use lawnmowers only with specifically designated battery packs. Use of any other battery packs may create a risk of injury and fire. ■ Recharge only with the charger specified by the manufacturer. A charger that is suitable for one type of battery pack(s) may create a risk of fire when used with another battery pack(s).

  • Page 8: Battery Pack

    - Pull the mower back slowly. BATTERY PACK ® ■ The battery pack is only compatible with LawnMaster 24LFC15-ETL, 24LFC14-ETL, 24LFC02-ETL or 24LSC01-ETL chargers. ■ Do not charge battery in a damp or wet location. Following this rule will reduce the risk of electric shock.

  • Page 9: Fcc Compliance

    IMPORTANT SAFETY INSTRUCTIONS ■ Keep cord and charger away from heat to prevent damage to housing or internal parts. ■ Do not operate charger with a damaged cord or plug, which could cause shorting and electric shock. If damaged, immediately discontinue use. Replace the charger with the identical unit as listed in the Parts List of this manual.

  • Page 10: Symbols

    SYMBOLS Some of the following symbols may be used on this product. Please study them and learn their meaning. Proper interpretation of these symbols will allow you to operate the product better and safer. SYMBOL NAME DESIGNATION/EXPLANATION Volts Voltage Direct Current Type or a characteristic of current Amperes Current...
  • Page 11 SYMBOLS SYMBOL NAME DESIGNATION/EXPLANATION Keep hands and feet Danger: Keep hands and feet away from blade. away. Wear hearing and eye protection Safety alert precautions that involve your safety. when operating this equipment. Cutting Width Cutting diameter Lithium-Ion Battery Designates that this tool is in compliance with lithium- Recycling ion battery recycling program requirements.
  • Page 12 SYMBOLS SERVICE Service requires extreme care and knowledge and should be performed only by a qualified service technician. When servicing, use only identical replacement parts. For troubleshooting or replacement, please call Customer Service for assistance (Toll free number 866-384-8432). WARNING To avoid serious personal injury, do not attempt to use this product until you read thoroughly and understand completely the Operator’s Manual.

  • Page 13: Know Your Lawn Mower

    KNOW YOUR LAWN MOWER 19a 19b...
  • Page 14 KNOW YOUR LAWN MOWER Components 1. Start/Stop Bale Switch 10. Front Wheel 19. iPower Control Panel 2. Foam Grip 11. Side Discharge Chute 19a. iPower Mower Mode Indicator 3. Upper Handle 12. Side Discharge Door 19b. iPower Battery Meter Indicator 4.

  • Page 15: Assembly

    ASSEMBLY UNPACKING This product requires assembly. ■ Carefully remove the product and any accessories from the box. Make sure that all items listed in the packing list are included. ■ Inspect the product carefully to make sure no breakage or damage occurred during shipping. ■...
  • Page 16 ASSEMBLY WARNING Do not connect the batteries before the product is completely assembled. Failure to comply could result in accidental starting and possible serious personal injury. WARNING Never operate the mower without the proper safety devices in place and working. Never operate the mower with damaged safety devices.

  • Page 17: Assembling The Grass Collection Bag

    Fig. 2 ASSEMBLING THE GRASS COLLECTION BAG ® Your LawnMaster mower comes with a tool-less collection bag. 1. Check the grass collection bag before assembling to make sure there is no damage. 2. Pull the grass collection bag over the steel frame as shown (Fig. 3).
  • Page 18 ASSEMBLY 4. Make sure both rods are firmly seated on the holder and rear safety flap rests firmly against the top of the grass collection bag. Rods Mulching plug must be removed prior to installing grass collection bag. Holders Fig. 5 Removing the grass collection bag: 1.

  • Page 19: Installing The Side Discharge Chute

    ASSEMBLY Fig. 8 Fig. 6 Fig. 7 INSTALLING THE SIDE DISCHARGE CHUTE WARNING Do not at any time make any adjustment to the lawn mower without first stopping the motor and removing the battery packs. Ensure the mulching plug is fitted when using the side discharge chute. Do not fit the collection bag.

  • Page 20: Adjusting The Cutting Height

    ASSEMBLY ADJUSTING THE CUTTING HEIGHT WARNING Do not at any time make any adjustment to the lawn mower without first stopping the motor and removing the battery packs. Keep your feet away from the mower deck when adjusting its height. When shipped, the rear wheels on the mower are set to a low-cutting position.
  • Page 21 ASSEMBLY INSTALLING / REMOVING THE BATTERY PACKS WARNING If any parts are broken or missing, do not attempt to attach the battery packs to the mower or operate the mower until the broken or missing parts are replaced. Failure to do so could result in serious injury. Do not connect the batteries and/or the safety key before the product is completely assembled.

  • Page 22: Battery Pack And Charger

    BATTERY PACK AND CHARGER BATTERY CHARGING ® 1. Use only with 24V LawnMaster battery chargers. The battery charger supplied is specifically designed for the lithium-ion batteries used in this tool. 2. Check the power voltage! Battery chargers operate on 120V.

  • Page 23: Indicator Lights

    BATTERY PACK AND CHARGER The indicator lights on the charger show the charger status: SYMBOL INDICATOR LIGHTS STATUS Red, continuous Connected to power supply Green, blinking. Charging. (flashing frequency: 1Hz) Green, blinking. Battery is overheated. (flashing frequency: 2Hz) Green, continuous. Fully charged.

  • Page 24: Charging The Battery Pack

    BATTERY PACK AND CHARGER CHARGING THE BATTERY PACK Fig. 13 WARNING If any part of the charger is missing or damaged, do not operate it! Replace the charger with a new one. Failure to heed this warning could result in possible serious injury. Check the voltage! The voltage must comply with the information on the rating label.

  • Page 25: Operation

    OPERATION WARNING Do not allow familiarity with this type of product to make you careless. Remember that a careless fraction of a second is sufficient to inflict serious injury. WARNING Always wear safety goggles or safety glasses with side shields when operating this product. Failure to do so could result in objects being thrown into your eyes, resulting in possible serious injury.
  • Page 26 OPERATION IPOWER MOWER MODE INDICATOR (19a) (Fig. 15) 1. By default, the motor power is set to “AUTO” and will automatically adjust to your lawn. 2. Push the press button repeatedly to cycle through the different motor power levels. • Set the motor power to “1”, if your lawn needs only light mowing. •...

  • Page 27: General Operation

    OPERATION GENERAL OPERATION Check the product, its power cord and accessories for damage before each use. Before use, please ensure all power connections are in good working order prior to installing battery packs. If damage is present or observed, please stop and have mower serviced before use. Do not use the product if it is damaged or shows wear.

  • Page 28: After Use

    OPERATION MOWING ON A SLOPE (Fig. 17) 1. Slopes are a major factor related to slip and fall accidents that can result in severe injury. Mowing on slopes requires extra caution. If you feel uneasy on a slope, do not mow it. For your safety, do not attempt to mow slopes greater than 15 degrees.

  • Page 29: Maintenance

    MAINTENANCE WARNING When servicing, use only identical replacement parts. Use of any other parts may create a hazard or cause product damage. WARNING Always wear safety goggles or safety glasses with side shields during power tool operation. If operation is dusty, also wear a dust mask. GENERAL MAINTENANCE Avoid using solvents when cleaning plastic parts.

  • Page 30: Replacing The Mower Blade

    MAINTENANCE WARNING Always protect hands by wearing heavy gloves and/or wrapping the cutting edges of the blade with rags and other material when performing blade maintenance. Failure to heed this warning could result in serious personal injury. WARNING Before performing any maintenance, make sure the mower is switched off and the batteries have been removed.

  • Page 31: Sharpening The Blade

    MAINTENANCE SHARPENING THE BLADE For best mowing performance, the mower blade must be kept sharp. A dull blade does not cut grass evenly and overloads the motor. Under normal circumstances, sharpening the blade twice during the mowing season is usually sufficient. However, if your lawn has sandy soil, more frequent sharpening may be required.

  • Page 32: Storing The Mower

    MAINTENANCE STORING THE MOWER 1. Remove the batteries from the mower.. 2. Turn mower on its side and clean grass clippings that have accumulated on the underside of the mower deck. 3. Wipe the mower clean with a dry cloth. 4.

  • Page 33: Cleaning The Mower

    MAINTENANCE CLEANING THE MOWER WARNING To reduce the risk of electric shock, do not expose the mower to water. WARNING Do not at any time make any maintenance to the lawn mower without first stopping the motor and removing the battery packs. The underside of mower deck should be cleaned after each use as grass clippings, leaves, dirt and other debris will accumulate causing rust and corrosion.

  • Page 34: Environmentally Safe Battery Disposal

    ENVIRONMENTALLY SAFE BATTERY DISPOSAL The following toxic and corrosive materials are in the batteries used in this battery pack: lithium-ion, a toxic material. WARNING All toxic materials must be disposed of in a specific manner to prevent contamination of the environment.

  • Page 35: Troubleshooting

    TROUBLESHOOTING Suspected malfunctions are often due to causes that the user can fix themselves. Therefore check the product using this section. In most cases the problem can be solved quickly. WARNING Only perform the steps described within these instructions! All further inspection, maintenance and repair work must be performed by an authorized service center or a similarly qualified specialist if you cannot solve the problem yourself! PROBLEM POSSIBLE CAUSE...
  • Page 36 TROUBLESHOOTING PROBLEM POSSIBLE CAUSE SOLUTION The cutting blade is not Tighten the blade nuts. assembled securely. Mower vibrates Sharpen and balance the blade excessively and The blade is not balanced. following instructions in this manual (see makes a lot of page 31).

  • Page 37: Lawnmaster ® Warranty

    ® LAWNMASTER WARRANTY...

  • Page 38: Exploded View

    EXPLODED VIEW...

  • Page 39: Parts List

    PARTS LIST Key Number Part Number Description Quantity Handle Assembly Rear Wheel Assembly Pin Assembly Front Wheel Assembly Pin Assembly Deck Assembly Front Axle Assembly Blade Holder Assembly 211064116 Blade Blade Nut Rear Axle Assembly Rear Skin Baffle Assembly Safety Flap Assembly Lower Handle Wing Knob Left Lower Handle Right Lower Handle...

  • Page 40: Notes

    NOTES...

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