Ryobi RHT1855R40 User manual

RHT1851R15
RHT1855R40
OHT1855R
OHT1851R
ORIGINAL INSTRUCTIONS
Cordless Hedge
Trimmer
RHT1855R40
RHT1851R25
RHT1851R20
RHT1851R15
OHT1855R
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 cordless hedge trimmer 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 and 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 POWER TOOL 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
operation. If damaged, have the power tool repaired

2
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 WARNINGS
■Some regions have regulations that restrict the use of
the product to some operations. Check with your local
authority for advice. Read all instructions.
■Clear the work area before each use. Remove all
objects such as cords, lights, wire, or string that can
be thrown or become entangled in the cutting means.
■Check the hedge for foreign objects, such as wire
fences.
■Exercise additional caution when using 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 allow children or untrained individuals to use the
product.
■Do not operate in poor lighting. The operator requires a
clear view of the work area to identify potential hazards.
■Ensure all handles and guards are fitted when using
the hedge trimmer. Never attempt to use an incomplete
hedge trimmer or one fitted with an unauthorised
modification.
■Ensure before each use that all controls and safety
devices function correctly. Do not use the product if the
“off” switch does not stop the product.
■Inspect the product before each use. Check for loose
fasteners. Make sure all guards and handles are
properly and securely attached. Replace any damaged
parts before use. Check the battery pack for leaks.
■Do not modify the product in any way.
■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.
■Wear heavy long trousers, boots, and gloves. Do not
wear loose fitting clothing, short trousers, jewellery of
any kind, or use with bare feet.
■Secure long hair so it is above shoulder level to prevent
entanglement in moving parts.
■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.
■Operating similar tools nearby increases both the risk
of hearing injury and the potential for other persons to
enter your working area.
■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 and can
result in serious injury.
■Keep all parts of your body away from any moving part.
■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. 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.

3
■Switch off and remove the battery pack 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 for RHT1851R25 and OHT1851R
or 22 mm thick for RHT1851R15, RHT1851R20,
RHT1855R40, and OHT1855R, or those obviously too
large to feed into the cutting blade. Use a non-powered
hand saw or pruning saw to trim large stems.
■Do not operate the product with damaged or excessively
worn blades.
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 pack, 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 pack
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 in a vehicle, 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 authorised 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
–The blade cannot be guarded while cutting. 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.

4
■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.
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 7.
PARTS
1. Rear handle
2. Trigger
3. Handle rotation lock button
4. Front handle
5. Operator presence switch
6. Guard
7. HedgeSweep™debris sweeper
8. Blade
9. Blade cover
10. Battery pack
11. Battery latch button
12. 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.
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
shown on this label by 94 dB.
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.
SYMBOLS IN THIS MANUAL
Parts or accessories sold separately
Note
Warning

5
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.

6
x 1
x 1
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RHT1855R40
RHT1851R25
RHT1851R20
RHT1851R15
OHT1851R
OHT1855R
x 1
x 1
x 1
RHT1851R25
RHT1851R20
RHT1851R15
RHT1855R40

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9
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p.12 p.13

10
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PRODUCT SPECIFICATIONS
Corldless hedge trimmer
Model RHT1851R15/
OHT1851R
RHT1851R20/
RHT1851R25
RHT1855R40/
OHT1855R
Rated voltage
18 V DC
No-load speed
1 350/min
Stroke rate at no
load
2 700 spm
Blade length
500 mm 500 mm 550 mm
Cutting capacity
18 mm 22 mm 22 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 dB
A-weighted
sound power
level
92.0 dB(A)
Uncertainty of
measurement
3 dB
Weight without
battery pack
2.7 kg 2.8 kg
BATTERY AND CHARGER
Model RHT1855R40 RHT1851R25 RHT1851R20 RHT1851R15 OHT1855R/
OHT1851R
Battery
pack RB18L40 RB18L25 RB18L20 RB18L15 not
included
Weight 0.72 kg 0.45 kg 0.44 kg 0.45 kg -
Charger BCL14181H not
included
Weight 0.5 kg -
Compatible
battery
packs
BPL-1815, BPL-1820, RB18L13, RB18L15, RB18L20,
RB18L25, RB18L26, RB18L40, RB18L50
Compatible
charger
BC-1800, BC-1800M, BC1815S, BC1815SMG, ACR-1800,
BCL-1800, BCL-1800G, BCL1418, BCL14181H, BCL14183H
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.

GUARANTEE
In addition to any statutory rights resulting from the purchase, this product is covered by a guarantee as stated below.
1. The guarantee period is 24 months for consumers and commences on the date when the product was purchased.
This date has to be documented by an invoice or other proof of purchase. The product is designed and dedicated to
consumer and private use only. So there is no guarantee provided in case of professional or commercial use.
2. There is, in some cases (i.e. promotion, range of tools), a possibility to extend the warranty period over the period
described above using the registration on the www.ryobitools.eu website. The eligibility of the tool is clearly displayed
in stores and/or on packaging. The end user needs to register his/her newly-acquired tools online within 8 days from
the date of purchase. The end user may register for the extended warranty in his country of residence if listed on the
online registration form where this option is valid. Furthermore, end users must give their consent to the storage of the
data which are required to enter online and they have to accept the terms and conditions. The registration confirmation
receipt, which is sent out by e-mail, and the original invoice showing the date of purchase will serve as proof of the
extended warranty. Your statutory rights remain unaffected.
3. The guarantee covers all defects of the product during the warranty period due to defaults in workmanship or material
at the purchase date. The guarantee is limited to repair and/or replacement and does not include any other obligations
including but not limited to incidental or consequential damages. The warranty is not valid if the product has been
misused, used contrary to the instruction manual, or being incorrectly connected. This guarantee does not apply to:
–any damage to the product that is the result of improper maintenance
–any product that has been altered or modified
–any product where original identification (trade mark, serial number) markings have been defaced, altered or
removed
–any damage caused by non-observance of the instruction manual
–any non CE product
–any product which has been attempted to be repaired by an non-qualified professional or without prior authorization
by Techtronic Industries
–any product connected to improper power supply (amps, voltage, frequency)
–any product used with inappropriate fuel mixture (fuel, oil, percentage of oil)
–any damage caused by external influences (chemical, physical, shocks) or foreign substances
–normal wear and tear of spare parts
–inappropriate use, overloading of the tool
–use of non-approved accessories or parts
–carburettor after 6 months, carburettor adjustments after 6 months
–components (parts and accessories) subject to natural wear and tear, including but not limited to bump knobs, drive
belts, clutch, blades of hedge trimmers or lawn mowers, harness, cable throttle, carbon brushes, power cord, tines,
felt washers, hitch pins, blower fans, blower and vacuum tubes, vacuum bag and straps, guide bars, saw chains,
hoses, connector fittings, spray nozzles, wheels, spray wands, inner reels, outer spools, cutting lines, spark plugs,
air filters, gas filters, mulching blades, etc.
4. For servicing, the product must be sent or presented to a RYOBI authorized service station listed for each country in the
following list of service station addresses. In some countries your local RYOBI dealer undertakes to send the product
to the RYOBI service organisation. When sending a product to a RYOBI service station, the product should be safely
packed without any dangerous contents such as petrol, marked with sender’s address and accompanied by a short
description of the fault.
5. A repair/replacement under this guarantee is free of charge. It does not constitute an extension or a new start of the
guarantee period. Exchanged parts or tools become our property. In some countries delivery charges or postage will
have to be paid by the sender.
6. This guarantee is valid in the European Community, Switzerland, Iceland, Norway, Liechtenstein, Turkey and Russia.
Outside these areas, please contact your authorized RYOBI dealer to determine if another warranty applies.

ACD PLANT LTD
145 Southbank Road
Coundon
Coventry, West Midlands
CV6 1FG
Phone: [phone]
Email: [email protected]
Web: www.acdplant.co.uk
CBS Power Tools Limited
Unit 4, V P Square
Storeys Bar Rd, Fengate
Peterborough, Cambridgeshire
PE1 5YS
Phone: [phone]
Email: [email protected]
Web: www.cbspowertools.com
C D Powertools
76 Old Road
Churwell Morley, Leeds
LS27 7TH
Phone: [phone]
Email: [email protected]
Web: www.cdpowertools.co.uk
C J Sinclair Limited
44 Victoria Road
St Peters
Broadstairs, Kent
CT10 2UG
Phone: [phone]
Email: [email protected]
Web: www.cjsinclairltd.co.uk
Powertech Ind Ltd
Unit 2C, Ellison Road
Norwood Ind, Killamarsh
Shefeld, South Yorkshire
S21 2JG
Phone: [phone]
Email: [email protected]
Web: www.powertech-industrial.co.uk
RYCKO Technical Services LTD
104 Green Lane
St Albans, Herts
AL3 6EX
Phone: [phone]
Email: [email protected]
Web: www.ryckotechnical.com
ToolTech Industrial Equipment
227 E Dunhill Road, Macosquin
Coleraine, Co Londonderry
BT514LQ
Phone: [phone]
Email: [email protected]
AUTHORISED SERVICE CENTRES
For an updated list of authorised service centres, visit http://uk.ryobitools.eu/header/service-and-support/service-agents.

DECLARATION OF CONFORMITY
Techtronic Industries GmbH
Max-Eyth-Straße 10, 71364 Winnenden, Germany
Herewith we declare that the product
Cordless Hedge Trimmer
Model number: RHT1855R40/RHT1851R25/RHT1851R20/RHT1851R15/OHT1855R/OHT1851R
Serial number range:
RHT1851R20/RHT1851R25: 46200802000001 - 46200802999999
RHT1855R40: 44418902000001 - 44418902999999
RHT1851R15: 44418702000001 - 44418702999999
OHT1855R: 44419002000001 - 44419002999999
OHT1851R: 44484302000001 - 44484302999999
is in conformity with the following European Directives and harmonized standards
2006/42/EC, 2014/30/EU, 2000/14/EC, 2005/88/EC, 2011/65/EU, EN 60745-1:2009+A11:2010,
EN 60745-2-15:2009+A1:2010, EN 55014-1:2017, EN 55014-2:2015, EN 50581:2012
Measured sound power level: 92.0 dB(A)
Guaranteed sound power level: 94.0 dB(A)
Conformity assessment method to Annex V Directive 2000/14/EC amended by 2005/88/EC.
Andrew John Eyre (BEng, CEng, MIET)
Vice President, Regulatory & Safety
Winnenden, Oct. 30, 2017
Authorised to compile the technical ile: Alexander
Krug, Managing Director
Techtronic Industries GmbH
Max-Eyth-Straße 10, 71364 Winnenden, Germany

Techtronic Industries GmbH
Max-Eyth-Straße 10,
71364 Winnenden, Germany
960737040-02