Ryobi RY36LMX51A User manual

ORIGINAL INSTRUCTIONS
Cordless Lawn
Mower
RY36LMX51A

Important!
It is essential that you read the instructions in this manual before assembling,
operating, and maintaining the product.
Subject to technical modification.

1
Safety, performance, and dependability have
been given top priority in the design of your
cordless lawn mower.
INTENDED USE
The cordless lawn mower is intended for
outdoor use only.
The product is designed for domestic lawn
mowing. The cutting blade should rotate
approximately parallel to the ground over
which it is being wheeled. All four wheels
should touch the ground while mowing. It is
a pedestrian-controlled walk-behind mower
designed to be pushed by hand or used with
the self-propel feature.
The product should never be operated with
the wheels off the ground. It should not be
pulled or ridden on. It should not be used to
cut anything other than domestic grass lawns.
Do not use the product for any other purpose.
GENERAL SAFETY WARNINGS
WARNING
When using the product, the safety rules
must be followed. For your own safety
and that of bystanders, please read these
instructions before operating the product.
Please keep the instructions safe for later
use.
WARNING
The product should be operated only with
the battery packs specied in this manual.
When using a battery operated product,
basic safety precautions should always be
followed to reduce the risk of re, leaking
batteries, and personal injury.
PERSONAL SAFETY
■The product is capable of amputating
hands and feet, and of throwing objects.
Failure to observe all safety instructions
could result in serious injury or death.
■Be familiar with the controls and the correct
use of the product.
■Never allow children or people with reduced
physical, sensory, or mental capabilities or
persons who are not familiar with these
instructions to operate, clean, or maintain
the product. Local regulations may restrict
the age of the operator. Children should be
adequately supervised to ensure they do
not play with the product.
■Stay alert, watch what you are doing,
and use common sense when operating
the product. Do not operate the product
while tired, ill, or under the influence of
drugs, alcohol, or medication. A lapse in
concentration while operating the product
may result in serious personal injury.
■Wear heavy, long trousers, long sleeves,
and sturdy anti-slip footwear. Do not wear
short trousers, sandals, or go barefoot.
Avoid wearing clothing that is loose-fitting
or that has hanging cords or ties.
■Always wear safety glasses with side
shields.
■Always be sure of your footing especially
on slopes. Keep firm footing and balance.
Walk, never run.
■Use the product across the face of slopes,
never up and down. Exercise extreme
caution when changing direction on slopes.
■Do not use the product near drop-offs,
ditches, excessively steep slopes, or
embankments. Poor footing could cause a
slip and fall accident.
WORK AREA SAFETY
■Never use product while people, especially
children, or pets are within 15 m because
of the danger of objects being thrown by
contact with the blade.
■Objects struck by the lawn mower blade
can cause severe injuries to persons.
Thoroughly inspect the area where the
product is to be used and remove all rocks,
sticks, metal, wire, bones, toys, or other
foreign objects. Remember, string or wire
may entangle with the cutting means.
■Always use the product in the daylight or
with good artificial light.
■Do not operate the product in explosive
atmospheres, such as in the presence
of flammable liquids, gases, or dust. The
product creates sparks which may ignite
the dust or fumes.
■Do not operate the product on wet grass or
in the rain.
■Do not use the product when there is a risk
of lightning.

2
■Keep in mind that the operator or user
is responsible for accidents or hazards
occurring to other people or their property.
■Tragic accidents can occur if the operator
is not alert to the presence of children.
Children are often attracted to the product
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. Be alert, and
turn the product off if a child enters the
area.
■Use extra care when approaching blind
corners, shrubs, trees, or other objects
including overhanging shrubs, which may
block your view.
BATTERY TOOL USE AND CARE
■Read, understand, and always follow
the safety instructions that came with
your battery and charger. Failure to do
so may result in electric shock, fire or
other hazardous situations. Keep all the
instructions together in a safe place for
future reference.
■Battery-operated products do not have to be
plugged into an electrical outlet; therefore,
they are always in operating condition.
Remove the isolator key whenever you are
not operating the product.
■Remove the battery pack before making
any adjustments, cleaning, or removing
material from the product.
■Ensure that the isolator key is removed
before inserting battery pack.
■A battery pack must be recharged only with
the charger specified by the manufacturer.
Using a charger with an incompatible
battery pack may create a risk of fire. Use
battery pack only with charger listed.
■Use only battery pack intended specifically
for the product. Use of any other battery
packs may result in a risk of fire, electric
shock, or injury to persons.
■When battery pack is not in use, keep it away
from other metal objects like, paper clips,
coins, keys, nails, screws, or other small
metal objects, that can make a connection
from one terminal to another. Shorting the
battery pack terminals together may cause
sparks, burns, fire or explosion.
■Do not place battery products or their
batteries near fire or heat. This increases
the risk of explosion and possibly injury.
■Do not open or mutilate the battery pack.
Released electrolyte is corrosive and may
cause damage to the eyes or skin. It may
be toxic if swallowed.
■Protect the battery pack against moisture
and water. Do not charge the product in a
damp or wet location. Following this rule
will reduce the risk of electric shock.
■In case of damage and improper use of the
battery, vapour may be emitted. Provide
for fresh air, and seek medical help in case
of complaints. The vapour can irritate the
respiratory system.
■Do not leave the battery pack inside a
vehicle in hot or cold conditions.
■Do not incinerate the battery.
■Under abusive conditions, liquid may be
ejected from the battery; avoid contact.
If contact accidentally occurs, flush with
water. If liquid contacts eyes, additionally
seek medical help. Liquid ejected from the
battery may cause irritation or burns.
CORDLESS LAWN MOWER SAFETY
WARNINGS
■Before use, always visually inspect to
ensure that blades, blade bolts, and cutter
assembly are not worn or damaged.
■Replace worn or damaged blades and
bolts in sets to preserve balance.
■The blade on the product is sharp. Use
extreme caution and wear heavy-duty
gloves when fitting, replacing, cleaning or
checking bolt security.
■Bring the product to an authorised service
centre to replace damaged or unreadable
labels.
■Check all nuts, bolts, and screws at
frequent intervals for proper tightness to
be sure that the product is in safe working
condition.
■Frequently check the grass catcher for
wear, holes, or deterioration.
■Replace worn or damaged parts before
operating the product.
■The product must be started with the user
behind the handlebars in the operator
safety zone. Never start the product if:

3
●not all four wheels are on the ground
●the grass discharge chute is exposed
and is not protected by the grass catcher
and grass discharge chute cover
●hands and feet of all persons are not
clear of the cutting enclosure
■Never operate the product if the on/off
switch on the handlebar does not properly
start and stop the product.
■Never attempt to lock the on/off switches in
the on position; this is extremely dangerous.
■Do not force the product. It will do the job
better and safer at the speed for which it
was designed.
■Stop the blade when crossing gravel
surfaces.
■Do not pull the product backwards unless
absolutely necessary. If you must back the
product away from a wall or obstruction,
first look down and behind to avoid tripping
or pulling the product over your feet.
■Turn off the motor and allow the blade
to stop if the product has to be tilted for
transportation when crossing surfaces
other than grass, and when transporting
the product to and from the work area.
■Never use the product with defective guards
or shields, or without safety devices, such
as deflectors or grass collectors, in place.
■Do not tilt the product when turning on
the motor or while the motor is running. If
absolutely necessary, you may raise the
front of the lawn mower by no more than
5 cm to enable easier starting. Press down
on the handlebar to achieve this. Always
return the mower to its normal position with
all wheels on the ground before cutting.
Tilting the mower exposes the blade and
increases the probability of objects being
thrown and accidental contact with the
blade.
■Turn on the motor carefully according to
instructions and keep hands and feet away
from blades. Do not put hands or feet near
or under rotating parts.
■Never pick up or carry the product while it
is running.
■Turn off the product, and remove the
isolator key and the battery pack. Make
sure that all moving parts have come to a
complete stop:
●whenever leaving the product
unattended (including disposal of grass
clippings)
●before clearing blockages or unclogging
discharge chute
●before checking, cleaning, or working on
the product
●before removing the grass catcher or
opening the grass discharge chute cover
●after striking a foreign object; inspect the
product for damage and make repairs
as necessary before restarting and
operating the product
●If the product starts to vibrate abnormally
(check immediately)
–inspect for damage, particularly the
blades
–replace or repair any damaged parts
–check for and tighten any loose parts
■Avoid holes, ruts, bumps, rocks, property
stakes, or other hidden objects. Uneven
terrain could cause a slip-and-fall accident.
■Always ensure that the motor control cable
is never trapped, pinched or otherwise
damaged during assembly or when folding
the handle.
ADDITIONAL BATTERY SAFETY
WARNINGS
WARNING
To reduce the risk of re, personal injury,
and product damage due to a short circuit,
never immerse your tool, battery pack or
charger in uid or allow a uid to ow inside
them. Corrosive or conductive uids, such
as seawater, certain industrial chemicals,
and bleach or bleach-containing products,
etc., can cause a short circuit.
PRODUCT FEATURES
OVERLOADANDOVERHEATPROTECTION
The product has an overload protection device.
When overloading is detected, the product
will automatically turn off. If the overload
protector is actuated, the on/off switch must
be released. Press the on/off switch to restart
the product.
The battery pack has overheat protection.
Excessive temperatures will cause the battery

4
to stop powering the product. If the battery
pack is too warm, allow it to cool down before
resuming operation. If the product still does
not work, recharge the battery.
NOTE: The battery pack LED indicator will
not work if the battery protection feature has
caused the battery pack to stop powering
the product. Turn off the product or remove
the battery pack from the product and the
battery pack LED indicator will resume normal
function.
GENERAL MOWING TIPS
The run time of the battery depends on the
condition, length, and density of the grass.
Adjust the cutting height of the lawn mower to
suit the current condition of the lawn.
Grass
conditions
Suggested
height
adjustment
Coverage
(maximum)
First
pass
Succeeding
passes
4.0 Ah
battery
Very thin /
Dry 3 2 XXX m2
Thin / Dry 4 3 → 2 XXX m2
Medium /
Dense 54 → 3 XXX m2
*Battery: BPL3640D2
Grass
conditions
Suggested
height
adjustment
Coverage
(maximum)
First
pass
Succeeding
passes
5.0 Ah
battery
Very thin /
Dry 3 2 XXX m2
Thin / Dry 4 3 → 2 XXX m2
Medium /
Dense 54 → 3 XXX m2
*Battery: BPL3650D2
Grass
conditions
Suggested
height
adjustment
Coverage
(maximum)
First
pass
Succeeding
passes
6.0 Ah
battery
Very thin /
Dry 3 2 700 m2
Thin / Dry 4 3 → 2 600 m2
Medium /
Dense 54 → 3 500 m2
*Battery: BPL3660D2
■For best performance, always cut off one-
third or less of the total height of the grass.
■When cutting long grass, reduce walking
speed to allow for more effective cutting
and a proper discharge of the clippings.
■Do not cut wet grass; it will stick to the
underside of the deck and prevent proper
collection or discharge of grass clippings.
■New or thick grass may require a higher
cutting height.
■To collect the grass cuttings for disposal,
remove the mulching plug and fit the
grass catcher, making sure that the
grass discharge chute cover is properly
closed. Empty the grass catcher regularly;
otherwise, the discharge chute will become
blocked with grass cuttings.
■If you are making a light cut and wish
for the grass cuttings to remain on the
lawn, fit the mulching plug, and close the
grass discharge chute cover to cover the
discharge opening. It is not necessary to fit
the grass catcher in this case.
■The product is designed to operate and cut
most effectively when moving forwards.
■A higher cutting height extends the run
time of the battery pack.
TRANSPORTATION AND STORAGE
■Turn off the product, and remove the
isolator key and the battery pack. Make
sure that all moving parts have come to a
complete stop. Allow the product to cool
down before storing or transporting.
■Clean all foreign materials from the product.
Store the product in a cool, dry, and well-
ventilated place that is inaccessible to

5
children. Keep the product away from
corrosive agents such as garden chemicals
and de-icing salts. Do not store the product
outdoors.
■For transportation in vehicles, remove
the isolator key, and secure the product
against movement or falling to prevent
injury to persons or damage to the product.
WARNING
Use extreme caution when lifting or tilting
the product for maintenance, cleaning,
storage, or transportation. The blade is
sharp; keep all body parts away from the
blade while it is exposed.
TRANSPORTING LITHIUM BATTERIES
Transport the battery in accordance with local
and national provisions and regulations.
Follow all special requirements on packaging
and labelling when transporting batteries by a
third party. Ensure that no batteries can come
in contact with other batteries or conductive
materials while in transport by protecting
exposed connectors with insulating, non-
conductive caps or tape. Do not transport
batteries that are cracked or leaking. Check
with the forwarding company for further
advice.
MAINTENANCE
WARNING
Use only original manufacturer’s
replacement parts, accessories and
attachments. Failure to do so can cause
possible injury, can contribute to poor
performance, and may void your warranty.
WARNING
Servicing requires extreme care and
knowledge and should be performed only
by a qualied service technician. Have the
product serviced by an authorised service
centre only. When servicing, use only
original replacement parts.
■Turn off the product, and remove the
isolator key and the battery pack. Make
sure that all moving parts have come to
a complete stop before any cleaning or
maintenance task.
■You may make adjustments and repairs
described in this manual. For other repairs,
contact an authorised service centre.
■Replace worn or damaged part for safety.
■Check the grass catcher frequently for
wear or deterioration.
■After each use, clean the product with a
soft, dry cloth. Any part that is damaged
should be properly repaired or replaced by
an authorised service centre.
■Check all nuts, bolts, and screws at frequent
intervals for proper tightness to ensure the
product is in safe working condition.
■Be careful during adjustment of the product
to prevent entrapment of the fingers
between moving blades and fixed parts of
the product.
■When servicing the blades, be aware that
even though the power source is turned off,
the blades can still be moved.
■The blade on the product is sharp. Use
extreme caution, and wear heavy-duty
gloves when fitting, replacing, cleaning, or
checking bolt security.
■Replace damaged blades and bolts in sets
to preserve balance.
■The blade bolts must be adequately
tightened. See the manufacturer’s
recommendations for blade bolt torque,
which can be found in the product
specification table in this manual.
CLEARING BLOCKAGES
■Turn off the product, and remove the
isolator key and the battery pack. Make
sure that all moving parts have come to a
complete stop.
■Always wear heavy-duty gloves when
checking or clearing a blockage. The
blades are sharp and the blockage itself
could be a sharp object.
■Remove the grass catcher, check for and
carefully clear obstructions.
■Check the grass discharge chute, and
carefully clear blockages.
■Turn the product on its side. Check its
underside and the area around the blade. If
any blockages are found, remove carefully.
Remember, the blade may move during
cleaning.

6
RESIDUAL RISKS
Even when the product is used as prescribed,
it is still impossible to completely eliminate
certain residual risk factors. The following
hazards may arise during use, and the
operator should pay special attention to avoid
the following:
■injury caused by vibration
–Always use the right tool for the job. Use
designated handles and restrict working
time and exposure.
■injury caused by noise
–Exposure to noise can cause hearing
injury. Wear ear protection and limit
exposure.
■injury from contact with the blades
■injury caused by thrown objects
RISK REDUCTION
It has been reported that vibrations from
handheld tools may contribute to a condition
called Raynaud’s Syndrome. Symptoms may
include tingling, numbness and blanching of
the ngers, usually apparent upon exposure
to cold. Hereditary factors, exposure to cold
and dampness, diet, smoking and work
practices are all thought to contribute to the
development of these symptoms. There are
measures that can be taken by the operator to
possibly reduce the effects of vibration:
■Keep your body warm in cold weather.
When operating the product, wear gloves
to keep the hands and wrists warm. It is
reported that cold weather is a major factor
contributing to Raynaud’s Syndrome.
■After each period of operation, exercise to
increase blood circulation.
■Take frequent work breaks. Limit the
amount of exposure per day.
If you experience any of the symptoms of this
condition, immediately discontinue use and
see your physician.
WARNING
Injuries may be caused, or aggravated, by
prolonged use of a tool. When using any
tool for prolonged periods, ensure you take
regular breaks
KNOW YOUR PRODUCT
See page 10.
1. Bale
2. Self-propel paddle
3. Start button
4. Telescopic handle
5. Handle lock lever
6. Grass catcher
7. Quick release fastener
8. Cutting height adjustment lever
9. Rear wheel
10. Charger
11. Battery
12. Mulch plug
13. Isolator key
14. Front wheel
15. Battery door
16. Motor control cable
17. Cruise control switch
SYMBOLS ON THE PRODUCT
Read and understand all
instructions before operating
the product. Follow all warnings
and safety instructions.
Wear ear protection.
Wear eye protection.
Do not operate on inclines
greater than 15°. Mow across
the face of slopes, never up
and down.
Do not expose the product to
rain or damp condition.
Beware of sharp blades.
Blades continue to rotate
after the motor is switched off.
Remove the isolator key before
maintenance.
Beware of thrown or ying
objects. Keep all bystanders,
especially children and pets,
at least 15 m away from the
operating area.
Beware of sharp blades.
Blades continue to rotate after
the motor is switched off.

7
Remove the isolator key before
maintenance.
Waste electrical products
should not be disposed of
with household waste. Please
recycle where facilities exist.
Check with your local authority
or retailer for recycling advice.
Conforms to all regulatory
standards in the country in
the EU where the product is
purchased
EurAsian Conformity Mark
Ukrainian mark of conformity
94
The guaranteed sound power
level is XX dB.
SYMBOLS IN THIS MANUAL
Parts or accessories sold
separately.
Note
Warning
The following signal words and meanings
are intended to explain the levels of risk
associated with this product:
DANGER
Indicates an imminently hazardous situation,
which, if not avoided, will result in death or
serious injury.
WARNING
Indicates a potentially hazardous situation,
which, if not avoided, could result in death or
serious injury.
CAUTION
Indicates a potentially hazardous situation,
which, if not avoided, may result in minor or
moderate injury.
CAUTION
(Without Safety alert symbol) Indicates a
situation that may result in property damage.
PLACEHOLDER

8
x 1
x 1
x 1x 1
x 1
x 1
x 1
15 mm
x 1
x 1 x 1
x 1x 1
15 mm
RY36LMX51A-140
RY36LMX51A-150
RY36LMX51A-160

9
x 1
x 1
x 1x 1
x 1
x 1
x 1
15 mm
x 1
x 1 x 1
x 1x 1
15 mm
RY36LMX51A-0

10
1
3
2
4
5
6
7
8
9
17
16
14
15
10111213

3 4
1
5
4
3
2
C
BA
+/
C
B
A
2
1
1
6 7a5
1
2
2
1
1
2
108 12119
2
1
1
1 2
7b
11

12

13
66
7
7
p.15
p.16
p.16
p.17

14
p.18
p.21
p.20
p.22

15
1
2
15˚Max.15˚
3
4
1
2
2
1

16
2
1
1
2
1
1
2
2
2
1
1
1
2
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1
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17
66
7
7
66
7
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18
3
4
1
2
1
2
3
1
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