Ryobi RHT1851R50 User manual

RBC36X26E
RBC36X26E
ORIGINAL INSTRUCTIONS
Cordless Hedge
Trimmer
RHT1851R50
RHT1851R15
OHT1851R

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 hedge trimmer.
INTENDED USE
The product is only intended for use outdoors. For safety
reasons, the product must be adequately controlled by
using two-handed operation.
The product is designed for home or domestic use. It is
intended to cut and trim hedges, shrubs, and similar
vegetation.
It should be used in dry, well-illuminated conditions.
It is not intended to cut grass, trees, or branches. It should
not be used for any other purpose than hedge trimming.
GENERAL SAFETY WARNINGS
WARNING
Read all safety warnings and all instructions. Failure
to follow the warnings and instructions may result
in electric shock, fire and/or serious injury. Save all
warnings and instruction for future reference.
The term “power tool” in the warnings refers to your mains-
operated (corded) power tool or battery-operated (cordless)
power tool.
WORK AREA SAFETY
■Keep work area clean and well lit. Cluttered or dark
areas invite accidents.
■Do not operate power tools in explosive
atmospheres, such as in the presence of flammable
liquids, gases or dust. Power tools create sparks
which may ignite the dust or fumes.
■Keep children and bystanders away while operating
a power tool. Distractions can cause you to lose control.
ELECTRICAL SAFETY
■Power tool plugs must match the outlet. Never
modify the plug in any way. Do not use any adapter
plugs with earthed (grounded) power tools.
Unmodified plugs and matching outlets will reduce risk
of electric shock.
■Avoid body contact with earthed or grounded
surfaces, such as pipes, radiators, ranges and
refrigerators. There is an increased risk of electric
shock if your body is earthed or grounded
■Do not expose power tools to rain or wet conditions.
Water entering a power tool will increase the risk of
electric shock.
■Do not abuse the cord. Never use the cord for
carrying, pulling or unplugging the power tool.
Keep cord away from heat, oil, sharp edges or
moving parts. Damaged or entangled cords increase
the risk of electric shock.
■When operating a power tool outdoors, use an
extension cord suitable for outdoor use. Use of a
cord suitable for outdoor use reduces the risk of electric
shock.
■If operating a power tool in a damp location is
unavoidable, use a residual current device (RCD)
protected supply. Use of an RCD reduces the risk of
electric shock.
PERSONAL SAFETY
■Stay alert, watch what you are doing and use
common sense when operating a power tool. Do
not use a power tool while you are tired or under the
influence of drugs, alcohol or medication. A moment
of inattention while operating power tools may result in
serious personal injury.
■Use personal protective equipment. Always wear
eye protection. Protective equipment such as dust
mask, non-skid safety shoes, hard hat, or hearing
protection used for appropriate conditions will reduce
personal injury.
■Prevent unintentional starting. Ensure the switch
is in the off-position before connecting to power
source and/or battery pack, picking up or carrying
the tool. Carrying power tools with your finger on the
switch or energising power tools that have the switch
on invites accidents.
■Remove any adjusting key or wrench before turning
the power tool on. A wrench or a key left attached to
a rotating part of the power tool may result in personal
injury.
■Do not overreach. Keep proper footing and balance
at all times. This enables better control of the power in
unexpected situations.
■Dress properly. Do not wear loose clothing or
jewellery. Keep your hair, clothing and gloves away
from moving parts. Loose clothes, jewellery or long
hair can be caught in moving parts.
■If devices are provided for the connection of dust
extraction and collection facilities, ensure these are
connected and properly used. Use of dust collection
can reduce dust-related hazards.
POWER TOOL USE AND CARE
■Do not force the power tool. Use the correct power
tool for your application. The correct power tool will
do the job better and safer at the rate for which it was
designed.
■Do not use the power tool if the switch does not turn
it on and off. Any power tool that cannot be controlled
with switch is dangerous and must be repaired.
■Disconnect the plug from the power source and/or
the battery pack from the power tool before making
any adjustments, changing accessories, or storing
power tools. Such preventive safety measures reduce
the risk of starting the power tool accidentally.
■Store idle power tools out of the reach of children
and do not allow persons unfamiliar with the power
tool or these instructions to operate the power tool.
Power tools are dangerous in the hands of untrained
users.
■Maintain power tools. Check for misalignment or
binding of moving parts, breakage of parts and any
other condition that may affect the power tool’s

2
operation. If damaged, have the power tool repaired
before use. Many accidents are caused by poorly
maintained power tools.
■Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges are
less likely to bind and are easier to control.
■Use the power tool, accessories and tool bits etc.
in accordance with these instructions, taking into
account the working conditions and the work to
be performed. Use of the power tool for operations
different from those intended could result in a
hazardous situation.
BATTERY TOOL USE AND CARE
■Recharge only with the charger specified by the
manufacturer. A charger that is suitable for one type
of battery pack may create a risk of fire when used with
another battery pack.
■Use power tools only with specifically designated
battery packs. Use of any other battery packs may
create a risk of injury and fire
■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 terminals together may cause
burns or a fire.
■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.
SERVICE
■Have your power tool serviced by a qualified repair
person using only identical replacement parts. This
will ensure that safety of the power tool is maintained.
HEDGE TRIMMER SAFETY WARNINGS
■Keep all parts of the body away from the cutter
blade. Do not remove cut material or hold material
to be cut when blades are moving. Make sure the
switch is off when clearing jammed materials.
A moment of inattention while operating the hedge
trimmer may result in serious personal injury.
■Carry the hedge trimmer by the handle with cutter
blade stopped. When transporting or storing the
hedge trimmer always fit the cutting device cover.
Proper handling of the hedge trimmer will reduce
possible personal injury from the cutter blades.
■Hold the power tool by insulated gripping surface
only, because the cutter blade may contact hidden
wiring. Cutter Blades contacting a “live” wire may make
exposed metal parts of the power tool “live” and could
give the operator an electric shock.
ADDITIONAL SAFETY RULES
■Clear the work area before each use. Remove all
objects such as cords, lights, wire, or string which can
be thrown or become entangled in the cutting means.
■Check the hedge for foreign objects, such as wire
fences.
■Never use the product near posts, fences, buildings, or
other immovable objects.
■Beware of thrown objects; keep all bystanders, children,
and pets at least 15 m away from work area.
■Do not operate in poor lighting. The operator requires a
clear view of the work area to identify potential hazards.
■Inspect the product before each use. Check for loose
fasteners, etc. Make sure all guards and handles are
properly and securely attached. Replace any damaged
parts before use. Check for battery pack leaks.
■Do not modify the product in any way.
■Do not allow children or untrained individuals to use the
product.
■Wear full eye and hearing protection while operating the
product. If working in an area where there is a risk of
falling objects, head protection must be worn.
■Secure long hair so it is above shoulder level to prevent
entanglement in moving parts.
■Do not use the product when you are tired, ill, or under
the influence of alcohol, drugs, or medication.
■Keep firm footing and balance. Do not overreach.
Overreaching can result in loss of balance or exposure
to hot surfaces.
■Before starting the product, make sure the cutting
blades will not come in contact with anything.
■While operating the product, always hold it firmly with
both hands by the two handles and ensure that the
operating position is safe and secure. The manufacturer
does not recommend the use of steps or ladders. If
higher trimming is required, use an extended-reach
tool.
■Blades are sharp. When handling the blade assembly,
wear non-slip, heavy-duty, protective gloves. Do not
place your hand or fingers between the blades or
in any position where they could get pinched or cut.
Never touch the blade or service the product unless the
battery pack is removed.
■Switch off and remove the battery pack off before:
●adjusting the working position of the cutting device
●cleaning or clearing a blockage
●leaving the product unattended
●checking, maintaining, or working on the product
■Do not force the hedge trimmer through heavy
shrubbery. This can cause the blades to bind and slow
down. If the blades slow down, reduce the pace.
■Do not attempt to cut stems or twigs that are larger than
18 mm thick or those obviously too large to feed into the
cutting blade. Use a non-powered hand saw or pruning
saw to trim large stems.
■Use of hearing protection reduces the ability to hear
warnings (shouts or alarms). The operator must pay
extra attention to what is going on in the working area.

3
WARNING
If the product is dropped, suffers heavy impact, or begins
to vibrate abnormally, immediately stop the product and
inspect for damage or identify the cause of the vibration.
Any damage should be properly repaired or replaced by
an authorised service centre.
TRANSPORTATION AND STORAGE
■Stop the product, remove the battery, and allow both to
cool before storing or transporting
■Clean all foreign material from the product. Store it in a
cool, dry, and well-ventilated place that is inaccessible
to children. For extra safety, store the battery separately
from the hedge trimmer. Keep away from corrosive
agents such as garden chemicals and de-icing salts.
Do not store outdoors.
■Cover the blade with the blade protector before storing
the product or during transportation.
■For transportation, secure the product against
movement or falling to prevent injury to persons or
damage to the product.
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, poor performance, and may void
your warranty.
WARNING
Servicing requires extreme care and knowledge
and should be performed only by a qualified service
technician. For service, we suggest you bring the
product to your nearest authorised service centre for
repair. When servicing, use only identical replacement
parts.
WARNING
The blades are extremely sharp. To prevent personal
injury, exercise extreme caution when cleaning,
lubricating, and fitting or removing the blade protector.
■Remove the battery before adjusting, maintaining, or
cleaning the product.
■You may make adjustments and repairs described in
this manual. For other repairs, contact the authorised
service agent.
■After each use, clean the body and handles of the
product with a soft, dry cloth.
■After each use, clean the debris from the blades
with a stiff brush, and then carefully apply a rust
preventative lubricant before refitting the blade
protector. The manufacturer recommends you to use
a rust-preventative lubricant spray to apply an even
distribution and reduce the risk of personal injury from
contact with the blades. For information about suitable
spray product, check with an authorised service centre.
■Lubricate the blades lightly before use if necessary
using the above method.
■Check all nuts, bolts, and screws at frequent intervals
for proper tightness to ensure the product is in safe
working condition. Any part that is damaged should be
properly repaired or replaced by an authorized service
centre.
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 in use and the
operator should pay special attention to avoid the following:
■Injury caused by the blade
–Contact with the blades can cause serious injury.
Keep the blade away from yourself and others.
Cover it with the blade protector whenever you are
not cutting.
■Injury caused by vibration
–Always use the right tool for the job, use designated
handles, and restrict working time and exposure.
■Hearing injury caused by exposure to noise
–Wear ear protection and limit exposure.
RISK REDUCTION
It has been reported that vibrations from hand-held tools
may contribute to a condition called Raynaud’s Syndrome
in certain individuals. 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 doctor.

4
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.
DESCRIPTION
See page 6.
PARTS
1. Rear handle
2. Trigger
3. Rotating handle lock button
4. Front handle
5. Operator presence switch
6. Guard
7. Blade
8. Blade cover
9. Battery pack
10. Battery latch button
11. Charger
SYMBOLS ON THE PRODUCT
Safety alert
Please read the instructions carefully
before starting the product.
Wear ear protection.
Wear eye protection.
Always hold the hedge trimmer with
both hands when operating.
Wear non-slip, heavy duty gloves.
To prevent serious injury, do not touch
cutting blades.
Do not expose to rain or damp condition.
Beware of thrown or ying objects.
Keep all bystanders, especially children
and pets, at least 15m away from the
operating area.
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.
95 dB
75
dB
The guaranteed sound pressure level
is 75 dB. The guaranteed sound power
level is 95 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.

5
UNPACKING
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RHT1851R50
RHT1851R15
RHT1851R50
RHT1851R15
OHT1851R
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6
KNOW YOUR PRODUCT
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4567 12

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GETTING STARTED
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OVERVIEW
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OPERATION
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OPERATION
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90°90°
45°45°
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MAINTENANCE
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STORAGE
20160922v1
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20160922v1
PRODUCT SPECIFICATIONS
Model RHT1851R50/RHT1851R15/
OHT1851R
Rated voltage 18 V DC
No-load speed 1 350 min-1
Stroke rate at no load 2 700 spm
Blade length 500 mm
Cutting capacity 18 mm
Vibration level (in accordance with EN 60745-1 and EN 60745-
2-15)
Vibration total value <2.5 m/s2
Uncertainty of measurement 1.5
m/s2
Noise emission level (in accordance with EN 60745-1 and EN
60745-2-15)
A-weighted sound pressure
level
72.0 dB(A)
Uncertainty of measurement 3.0 dB
A-weighted sound power
level
92.0 dB(A)
Uncertainty of measurement 3.0 dB
Weight without battery pack 2.7 kg
BATTERY AND CHARGER
Model
RHT1851R50 RHT1851R15 OHT1851R
Battery pack
RB18L50 RB18L15 not included
Weight
0.74 kg 0.45 kg -
Charger
BCL14181H BCL14181H not included
Weight
0.5 kg 0.5 kg -
Compatible
battery packs
BPL-1815, BPL-1820, RB18L13, RB18L15,
RB18L20, RB18L25, RB18L26, RB18L40,
RB18L50
Compatible
charger
BCL-1800, BCL1418, BCL1418IV*,
BCL14181H, BCL14183H, BCS618G,
RC18150U
*BCL1418IV battery pack is compatible for charging in vehicles with
12 V DC outlets.
VIBRATION LEVEL
WARNING
The declared vibration value has been measured with a
standard test method and may be used to compare one
tool with another.
The declared vibration value may be used in a
preliminary assessment of exposure.
The vibration emission during actual use of power tool
can differ from the declared total value depending on the
ways in which the tool is used.
Identify safety measures to protect yourself based on an
estimation of exposure in the actual conditions of use,
taking account of all parts of the operating cycle such
as the times when the tool is switched off and when it is
running idle in addition to the trigger time.

Techtronic Industries (Australia) Pty. Ltd.
31 Gilby Road, Mount Waverley,
VIC 3149, Australia
Techtronic Industries New Zealand Ltd.
2 Landing Drive, Mangere,
Auckland, New Zealand 2022
960737041-01