sunjoe MJ401C Operator's Manual

sunjoe MJ401C Operator's Manual

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A Division of Snow Joe
, LLC
®
IMPORTANT!

Safety Instructions

All Operators Must Read These
Instructions Before Use
Always follow these safety guidelines. Failure to do so may
result in serious bodily injury or death.
General Safety WARNINGS!
When using this cordless lawn mower, basic safety
precautions should always be followed to reduce the risk of
fire, electric shock and personal injury. These precautions
include:
m
WARNING!
Do not operate without the entire grass
catcher, discharge guard, rear guard or other safety protective
devices in place and in proper working order.
m
WARNING!
The use of any other accessory or
attachment might increase the risk of injury.
m
WARNING!
To reduce the risk of injury, inspect the
catcher assembly frequently and replace with recommended
replacement if there are signs of wear or deterioration.
Before using the mower, take the time to familiarize yourself
with the controls, especially how to stop the mower in
an emergency. The only individuals who should use the
mower are those who have a thorough understanding of the
instructions and who know how to operate the machine.
Children should never be allowed access to the mower.
Retain this manual for future reference and reread it at the start
of each mowing season.
m
WARNING!
Contact with moving parts may cause
entanglement, dismemberment or other serious bodily
injury. Always keep body parts (i.e. hands, feet) a safe
distance away from moving parts. Ensure all covers and
guards are securely in place before use.
Hot surfaces (i.e. the motor) may ignite flammable or
combustible items and cause a fire or explosion, which
can result in serious bodily injury. Keep the mower a safe
distance away from flammable or combustible items until
surfaces that are hot have completely cooled. Do not store
the mower near flammable or combustible items.
© 2017 by Snow Joe
, LLC
®
All rights reserved. Original instructions.
CORDLESS LAWN MOWER
28 V D.C. | 4.0 Ah | 14-INCH
Model MJ401C
A damaged blade or worn blade nut may break off the
mower assembly and cause serious injury. Replace the
damaged blade or blade nut before using the mower.
1. Avoid dangerous conditions – Do not use the mower in
the rain or when the grass is damp or wet.
2. Keep children, bystanders and pets away – Always
keep children and spectators a safe distance away from
the mower during operation and as the machine cools.
3. Dress properly – Always wear personal safety gear (i.e.
glasses, rubber gloves, protective footwear and dust
masks) and proper clothing when using the mower. Loose
clothing, long hair or jewelry may get caught in the moving
parts.
4. Use the right appliance – Do not use the lawn mower
for any applications other than those for which it was
intended.
5. Do not force the lawn mower – It will perform better with
less likelihood of personal or mechanical injury if it is used
at the rate for which it was designed.
6. Do not overreach – Keep proper footing and balance at
all times.
7. Stay alert – Always be alert and watch what you are
doing. Use common sense. Do not operate the lawn
mower when you are tired or under the influence of
alcohol or drugs.
8. Disconnect the lawn mower – Turn OFF and remove
safety key when the mower is not in use, before servicing
it, when changing accessories and when performing any
other maintenance task.
9. Store idle lawn mower indoors – When not in use, the
lawn mower should be stored indoors in a dry, locked
place out of the reach of children.
10. Maintain the lawn mower with care – Keep cutting
edges sharp and clean for best and safest performance.
11. Use personal protective equipment. Always wear eye
protection – Protective equipment such as safety glasses,
a dusk mask, non-skid safety shoes, a hard hat, and
hearing protection, when used for appropriate conditions,
will reduce the possibility of personal injuries.
12. Avoid unintentional starting – Ensure the switch is in
the OFF position before insert the safety key, or before
picking up or carrying the tool. Carrying power tools with
your finger on the switch or charging power tools with the
switch ON can lead to accidents.
13. Remove any adjusting key or wrench before starting
the power tool – A wrench or a key left attached to a
rotating part of the power tool may result in personal
injury.
1
Form No. SJ-MJ401C-880E-M
OPERATOR'S MANUAL
SAVE THESE INSTRUCTIONS

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Do you have a question about the MJ401C and is the answer not in the manual?

Questions and answers

Hazel
April 5, 2025

The battery in my MJ401C will not charge and needs replaced. How do I get a new battery? Where are the instructions for replacing it?

2 comments:
Mr. Anderson
April 5, 2025

To obtain a new battery for the Sun Joe MJ401C, contact the service and support number: 1-866-SNOWJOE (1-866-766-9563). When reordering parts, provide the model and serial numbers found on the decal on the mower's housing or handle.

Instructions for battery replacement are not provided in the context.

This answer is automatically generated

How do you change the battery for the MJ401C Built in Battery.
May 29, 2025

@Hazel How do you Change the built in battery

mike
May 29, 2025

How Do you Change the built in battery on the MJ401C

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Summary of Contents for sunjoe MJ401C

  • Page 1: Safety Instructions

    CORDLESS LAWN MOWER 28 V D.C. | 4.0 Ah | 14-INCH Model MJ401C Form No. SJ-MJ401C-880E-M OPERATOR’S MANUAL A Division of Snow Joe , LLC ® IMPORTANT! A damaged blade or worn blade nut may break off the mower assembly and cause serious injury. Replace the Safety Instructions damaged blade or blade nut before using the mower.
  • Page 2: Electrical Safety

    Battery Safety Warnings 14. Keep cutting blades sharp and clean – Properly maintained cutting blades with sharp edges are less likely to bind and are easier to control. This manual contains important safety and operating 15. Keep all parts of the body away from the cutting blade instructions for your battery and charger.
  • Page 3: General Operation

    11. DO NOT store or use the tool and battery pack in • Operate the machine only in daylight or in good artificial light. locations where the temperature may reach or exceed 104 ºF (40 ºC). Dangerous storing locations include •...
  • Page 4 Children Tragic accidents can occur if the operator is not alert to the presence of children. Children are often attracted to the machine and the mowing activity. Never assume that children will remain where you last saw them. • Keep children out of the mowing area and under the watchful care of a responsible adult other than the operator.
  • Page 5: Safety Symbols

    Safety Symbols The following table depicts and describes safety symbols that may appear on this product. Read, understand and follow all instructions on the machine before attempting to assemble and operate. Symbols Descriptions Symbols Descriptions DANGER! Rotating blades. Keep Keep bystanders and children a safe hands and feet away.
  • Page 6: Technical Data

    Know Your Cordless Lawn Mower Read the owner’s manual and safety instructions carefully before operating the mower. Compare the illustration below to the mower in order to become familiar with the location of the various controls and adjustments. Save this manual for future reference.
  • Page 7: Carton Contents

    Unpacking Fig. 1 Carton Contents Lower handle • Cordless lawn mower • Grass collection bag • Grass collection bag support rod • Upper handle • Upper handle knob and bolt assembly (2) Screw • Lower handle • Lower handle screws (2) •...
  • Page 8: Before Using

    Before Using 2. Place the protective plastic straps onto the support rod (Fig. 4). Charging Procedure Fig. 4 The battery charger supplied matches the lithium-ion battery installed in the tool. Do not use other battery chargers. The lithium-ion battery is protected against deep discharging. When the battery is empty, a protective circuit will automatically switch OFF the machine.
  • Page 9: Operation

    Operation • Never store the lawn mower with the battery in a discharged condition. Recharge the unit immediately after it is discharged. This lawn mower is intended for private residential use to cut grass in small lawns and gardens. This lawn mower is not •...
  • Page 10: Adjusting The Cutting Height

    Adjusting the Cutting Height 3. To start the cordless lawn mower, press and hold the safety lock button while pulling the switch lever toward Follow these instructions to adjust the cutting height of the you (Fig. 11). lawn mower. WARNING! Fig.
  • Page 11: Mowing Tips

    Maintenance + Care Mowing Tips WARNING! Inspect the area prior to mowing and WARNING! Before cleaning, repairing or inspecting remove all the stones, sticks, wires and other foreign objects the mower, disconnect the power supply by plugging out the that could be picked up and thrown by the rotating blade. safety key and verify that all moving parts have come to a Failure to comply not only will damage the mower blade, but complete stop.
  • Page 12: Blade Replacement

    IMPORTANT: Only use original replacement parts specified for this mower. Washer You can purchase a replacement blade (Model MJ401C-BLD) and other genuine replacement parts by visiting us online at snowjoe.com or calling our toll-free customer service helpline at 1-866-SNOWJOE (1-866-766-9563). The use of parts that...
  • Page 13: Recycling + Disposal

    7. Batteries should be recycled or disposed of as per state and local guidelines. Service + Support If your Sun Joe MJ401C cordless lawn mower requires ® service or maintenance, please call 1-866-SNOWJOE (1-866-766-9563) for assistance. Model + Serial Numbers...
  • Page 14: Troubleshooting

    Troubleshooting • Remove the safety key before carrying out maintenance on the machine or when checking that its parts are in proper working order. • To avoid unnecessary hassles, consult the following table before contacting customer service with any mechanical issues. Fault Possible Cause Remedy...
  • Page 15: Optional Accessories

    10.6-gallon (40 l) grass collection bag MJ401E-10 Lawn Mower Side-Discharge MJ401E-DCA Chute Accessory MJ401C charger iCHRG28-AC NOTE: Accessories are subject to change without any obligation on the part of Snow Joe + Sun Joe to provide notice of such ®...
  • Page 16 NOTES...
  • Page 17 NOTES...
  • Page 18 NOTES...
  • Page 19 SNOW JOE + SUN JOE CUSTOMER PROMISE ® ® ABOVE ALL ELSE, Snow Joe + Sun Joe are dedicated to you, our customer. We strive to make your experience as pleasant ® ® as possible. Unfortunately, there are times when a product does not work or breaks under normal operating conditions. We think it’s important that you know what you can expect from us.
  • Page 20 snowjoe.com WARNING! This product or its power cord contains chemicals, including lead, known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. WARNING! Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known [to the State of California] to cause cancer, birth defects, or other reproductive harm.

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