Sun Joe MJ403E User Manual
17-INCH 13-AMP ELECTRIC
LAWN MOWER/MULCHER
Model MJ403E
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 electric lawn mower, basic safety precautions
should always be followed to reduce the risk of re, electric
shock and personal injury. These precautions include:
mWARNING! Do not operate without the entire grass
catcher, discharge guard, rear guard or other safety protective
devices in place and in proper working order.
mWARNING! The use of any other accessory or
attachment might increase the risk of injury.
Form No. SJ-MJ403E-880E-MR1
OPERATOR’S MANUAL
plug will t into a polarized wall outlet. If the plug does
not t fully into the wall outlet, reverse the plug. If the plug
still does not t, contact a qualied electrician to install
the proper wall outlet. Do not change the equipment plug,
extension cord receptacle or extension cord plug in any
way.
mWARNING! 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 ammable or
combustible items and cause a re or explosion, which
can result in serious bodily injury. Keep the mower a safe
distance away from ammable or combustible items until
surfaces that are hot have completely cooled. Do not store
the mower near ammable or combustible items.
A damaged blade or worn blade nut may break o the
mower assembly and cause serious injury. Replace the
damaged blade or blade nut before using the mower.
mWARNING! 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.
FOR DOUBLE-INSULATED
LAWN MOWERS
1. Replacement parts – When servicing this unit, use only
identical replacement parts. Replace or repair damaged
cords immediately.
2. Polarized plug – Polarized appliance connections reduce
the risk of electric shock. This mower has a polarized plug
(one blade is wider than the other) and will require the use
of a polarized extension cord. There is only one way the
mower’s plug will t into a polarized extension cord. If the
plug does not t fully into the extension cord, reverse the
plug. If the plug still does not t, obtain a correct polarized
extension cord. A polarized extension cord will require the
use of a polarized wall outlet. There is only one way the
FOR ALL LAWN MOWERS
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.
6. 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.
7. Do not overreach – Keep proper footing and balance at
all times.
8. 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 inuence of
alcohol or drugs.
9. Disconnect the lawn mower – Disconnect the lawn
mower from the power supply when it is not in use,
© 2013 by Snow Joe®, LLC
All rights reserved. Original instructions.
SAVE THESE INSTRUCTIONS
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before servicing it, when changing accessories and when
performing any other maintenance task.
10. 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.
11. Maintain the lawn mower with care – Keep cutting
edges sharp and clean for best and safest performance.
Inspect the lawn mower cord periodically and if damage
is found have it repaired by an authorized service facility.
Extension cords should also be inspected periodically and
immediately replaced if damaged. Keep handles dry, clean
and free from oil and grease.
Electrical Safety
1. Ground fault circuit interrupter (GFCI) protection should
be provided on the circuit(s) or outlet(s) to be used for
the lawn mower. Receptacles are available having built-in
GFCI protection and may be used for this measure of
safety.
2. To prevent electric shock, use only with an extension cord
suitable for outdoor use, such as SW, SOW, STW, STOW,
SJTW or SJTOW.
Before use, check that the extension cord is in good
condition. When using an extension cord, make sure to
use one heavy enough to carry the current your product
will draw. For lengths less than 50 feet, a No. 14 AWG
extension cord should be used. An undersized cord will
cause a drop in line voltage resulting in loss of power and
overheating.
certied in Canada) extension cord recommended for
outdoor use. The appliance plug will t into a polarized
extension cord only one way.
If the appliance plug does not t fully into the extension
cord, reverse the plug. If the plug still does not t, obtain
a correct polarized extension cord. A polarized extension
cord will require the use of a polarized wall outlet. The
extension cord plug will t into the polarized wall outlet
only one way. If the plug does not t fully into the wall
outlet, reverse the plug. If the plug still does not t,
contact a qualied electrician to install the proper wall
outlet. Do not modify the appliance plug, extension cord
receptacle or extension cord plug in any way.
4. To prevent the appliance cord from disconnecting from the
extension cord during operation, make a knot with the two
cords as shown in Table 1.
Table 1. Method of Securing Extension Cord
Cord set Appliance cord
(A) Tie cord as shown
m WARNING! m
Electric shock may cause SEVERE INJURY or
DEATH. Heed these warnings:
• Do not allow any part of the lawn mower to make
contact with water while it is in operation. If the
appliance becomes wet while turned o, wipe dry
before starting.
• Use only a UL-rated extension cord for outdoor,
all-weather use. Do not use an extension cord over
100 ft (30 m).
• Do not touch the appliance or its plug with wet hands
or while standing in water. Wearing rubber boots
oers some protection.
EXTENSION CORD CHART
Cord Length:
Min. Wire Gauge (A.W.G.):
3. To reduce the risk of electric shock, this appliance has
a polarized plug (i.e. one blade is wider than the other).
Use this appliance only with a polarized, UL-listed (CSA
50 ft (15m)
14
100 ft (30 m)
12
(B) Connect plug and receptacle
5. Do not abuse the cord. Never pull the lawn mower by the
cord or yank the cord to disconnect it from the receptacle.
Keep the cord away from heat, oil and sharp edges.
IMPORTANT!
Safety Instructions for
Walk-Behind Mowers
General Operation
• Read, understand and follow all instructions on the
machine and in the manual(s) before starting.
• Do not put hands or feet near or under the machine.
Always stay clear of the discharge opening.
• Keep guards in place and in proper working order.
• Only responsible adults who are familiar with the
instructions should be allowed to operate this machine.
• Clear the mowing area of foreign objects such as rocks,
wire, toys and other miscellaneous articles, which could
be picked up and thrown by the blade. Stay behind the
handle when the engine (motor) is running.
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• Make sure that the mowing area is clear of bystanders
before starting the machine. Stop the machine if anyone
enters the area.
• Do not operate the machine barefooted or while wearing
sandals. Always wear substantial footwear.
• Always look down and behind before and while moving
backward with the mower.
• Never direct discharged material toward anyone. Avoid
discharging material against a wall or other obstruction.
• Do not operate the machine without the entire grass
catcher, discharge guard, rear guard or other safety
protective devices in place and in proper working order.
• Never leave a running machine unattended.
• Stop the engine (motor) and wait until the blade comes to
a complete stop before cleaning the machine, removing
the grass catcher or unclogging the discharge guard.
• Operate the machine only in daylight or in good articial
light.
• Do not operate the machine when you are tired or under
the inuence of alcohol or drugs.
• Never operate the mower in wet grass. Always be sure of
your footing; walk, never run with the mower.
• If the machine should start to vibrate abnormally, stop
the engine (motor) and immediately check the machine
to ascertain the cause. Vibration is generally a signal of
trouble.
• Keep blades sharp.
• Keep hands and feet away from the cutting area.
• Always wear eye protection when operating the machine.
• Objects struck by the lawn mower blade can cause severe
injuries. The mowing area should always be carefully
examined and cleared of all objects prior to each mowing.
• If the lawn mower strikes a foreign object, follow these
steps:
i) Stop the lawn mower by releasing the start/stop switch
bar lever.
ii) Unplug the power cord.
iii) Inspect for damage.
iv) Repair any damage before restarting and operating
the lawn mower.
• Only use identical replacement blades.
• Do not mow on wet grass or excessively steep slopes.
Poor footing could cause a slip and fall accident.
• Do not mow near drop os, ditches or embankments. You
could lose your footing or balance.
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.
• Stay alert and turn the mower o if a child enters the area.
• Never allow children to operate the machine.
• Use extra care when approaching blind corners, shrubs,
trees or other objects that may block your view of a child.
Service
• Keep all nuts and bolts tight.
• Never tamper with safety devices. Regularly check to
ensure these devices are in place and in proper working
order.
• Keep the mower free from grass, leaves or other debris
buildup.
• If you strike a foreign object, stop and inspect the
machine. Repair, if necessary, before restarting.
• Never make any adjustments or repairs with the engine
(motor) running. Always unplug electric mowers before
adjusting, cleaning or repairing.
• Check the grass catcher components and the discharge
guard frequently and replace with manufacturer’s
recommended parts when necessary.
• Mower blades are sharp. Wrap the blade or wear gloves,
and use extra caution when servicing them.
• Maintain or replace safety and instruction labels, as
necessary.
Slope Operation
Slopes are major factors related to slip and fall accidents,
which can result in severe injury. Operation on all slopes
requires extra caution. If you feel uneasy on a slope, do not
mow it.
• Mow across the face of slopes; never mow slopes
following an up and down traverse. Exercise extreme
caution when changing direction on a slope.
• Watch for holes, ruts, bumps, rocks or other hidden
objects. These may cause an unexpected slip or fall.
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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 SymbolsDescriptions Descriptions
CPSC Danger label.
Safety Alert. Caution.
To reduce the risk of injury,
user must read instruction
manual.
Slip on slope hazard – Use
extra caution when mowing
on slopes to prevent slip and
fall accidents.
Keep bystanders and children
a safe distance away.
Wear eye and hearing
protection. For protection
against injury, wear ear
defenders and safety goggles.
Severing of toes or ngers
by rotary mower blade.
Thrown objects and
rotating blade can cause
severe injury.
Double Insulation.
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