Gardena SILENO User manual

2016 Pocket Guide
Robotic Lawnmowers
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GARDENA ROBOTIC LAWNMOWERS
2A
GARDENA GmbH
D-89070 Ulm
Phone [phone]
Telefax (0731) 4 90-2 19
www.gardena.com
GARDENA Service
If you have any questions about the installation of the robotic
lawnmower or you need further information, please contact
us at www.gardena.com any time. There you will find detailed
installation videos, answers to frequently asked questions and
lots more information, facts and suggestions.
We reserve the right to make changes, including changes to
products.
Notes

Table of contents
GARDENA Robotic Lawnmowers A
Why buy a robotic lawnmower? 4
Customer satisfaction 6
Functions 7
Mowing principle 8
Installation 9
Menu selection 10
Configuring mowing times 11
GARDENA SILENO/SILENO+ Robotic Lawnmowers 12
Comparison of new robotic lawnmowers 13
GARDENA R40Li/R70Li Robotic Lawnmowers 14
Comparison of R40Li/R70Li Robotic Lawnmowers 15
Frequently asked questions and answers 16
GARDENA smart system B
3 key benefits for your customers 4
How does it work? 5
The elements of the GARDENA smart system 6
GARDENA smart system — product overview 10
FAQ and answers — technical basics 12
FAQ and answers — watering 14
FAQ and answers — robotic lawnmowers 16

GARDENA ROBOTIC LAWNMOWERS
4A
1Dream lawn
Isn’t it great to walk barefoot over a lusciously green, thick and healthy
carpet of grass? It’s relaxing. As robotic lawnmower pioneers, we have long-
standing experience of mowing and our robotic lawnmowers have winning
technical properties. Thanks to the SensorCut system, they mow regularly,
sleekly and with “feeling”.
2Totally relaxed
The lawn is often the centrepiece of the garden. As soon as the robotic
lawnmower takes over maintenance of the lawn, garden owners are free from
having to mow and can simply sit back and relax. That’s how easy it is.
3Me time – you time
The garden is just the thing to help one wind down. It is a green island with
space for the really important things in life. Straight away there will be time
for family, friends and fun. Whether the extra time is spent in the garden or
elsewhere is up to the gardener himself. Time is not money, time is for living.
Why buy a robotic lawnmower?
Purchase criteria/trends
Enjoy the garden with complete relaxation, have nothing to worry about,
just sit back and relax — let someone else take care of the tedious and
time-consuming task of mowing the lawn. Thanks to sophisticated technology
based on 20 years of experience, the GARDENA Robotic Lawnmower performs
this task fully automatically, quietly, reliably and precisely. The result is a
perfect lawn — every time.

GARDENA ROBOTIC LAWNMOWERS
5 A
SensorCut system — stripe-free
and uniform mowing
Precision cut
Mulch function — natural lawn
fertiliser
Flexible cutting height
Guide wire — no ruts
Convenient — forget all about
grass cuttings
Independent — fully automatic
mowing
Simple — installed in an instant
Simple menu navigation — installation, operation,
programming in no time
Extremely quiet — the latest technology
All-weather operation —weather-resistant materials
Automatic charging — there's nothing to worry about
2
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GARDENA ROBOTIC LAWNMOWERS
6A
Selbst ist der Mann 4/2012:
"Well-engineered robotic lawnmower
(...) Simple operation despite complex
technology (...) Operates largely
without maintenance, only occasional
blade replacement (...)"
Öko Test:
"Wonderfully easy to maintain"
Selbst ist der Mann 6/2013:
"Reliable robot with simple operation"
Selber machen:
"Programming the robot: child's play"
Excellent quality, attested to in magazines and tests:
Awards refer to the R40Li
Customer satisfaction — excellent quality
A high level of satisfaction: 95% of GARDENA Robotic
Lawnmower owners are "very satisfied" or "satisfied" with
their robotic lawnmower and the job it does
(Overall satisfaction survey of more than 5000 GARDENA Robotic Lawnmower owners)

GARDENA ROBOTIC LAWNMOWERS
7 A
SensorCut system
Stripe-free and uniform
mowing
Precision cut
Thanks to a precision blade
Flexible cutting
height adjustment
Mulch function
Natural lawn fertiliser
Installed in an instant
Forget all about grass
cuttings
Charges automati-
cally
EasyPassage
Mow narrow areas with
ease (SILENO models)
Extremely quiet Can be operated in all
weathers
Fully automated
mowing
SensorControl
Mow only as often as
necessary (SILENO+)
Functions

GARDENA ROBOTIC LAWNMOWERS
8A
Mowing principle
Please note
Guide and boundary wires
must be connected
SensorCut system
Produces uniform, stripe-free cutting
results
Boundary wire
The boundary wire tells the
robot where it can and needs
to mow
Clearance width
Thanks to its guide wire, the robotic
lawnmower can pass through narrow passages
with a width of at least 1.5 metres without
difficulty. Ruts are avoided as the mower adjusts
the distance from the guide wire itself. SILENO
and SILENO+ can even handle corridors from a
width of 60 cm along the guide wire thanks to
their EasyPassage function.
Guide wire
• Gets into remote corners of the garden
• The robotic lawnmower moves directly
along the guide wire and back to the
charging station by itself without detouring

GARDENA ROBOTIC LAWNMOWERS
9 A
Installation
Safe and easy to install in 7 simple steps.
1Choose where the charging station should go
2Lay the boundary wires
That’s how the lawnmower will know where to mow and where not to
mow.
3Lay the guide wire
The lawnmower finds its way to remote areas of the garden and back to
the charging station. The boundary and guide wires can be laid on or
under the surface of the lawn.
4Attach the wires to the charging station
5Operate the robotic lawnmower
Programme mowing times and configure any further settings according to
individual requirements.
6Start up the robotic lawnmower
Off it goes!
7Let the mowing begin
and enjoy your free time.

GARDENA ROBOTIC LAWNMOWERS
10 A
Default settings
The language, date and time are set. The remote start function is enabled in
the default settings. It is used to approach remote areas of the garden.
Security settings
The robotic lawnmower is equipped with a PIN
code and alarm function. The security level can be
selected from low to high in the menu. This stops
the robotic lawnmower being used by others.
Setting the mowing times
Optimal results are achieved when the robotic lawnmower works continuously.
The specified coverage outputs are the maximum values based on 7 days
active time. The active times of GARDENA Robotic Lawnmowers range from
13 to 24 hours per day, depending on the respective robotic lawnmower. The
R40Li Robotic Lawnmower reaches its maximum coverage output of 400m²
with an active time of 13 hours every day (mowing and charging), 7 days per
week. To adapt the mowing time to lawn surface areas that are smaller than
the maximum coverage output of the robotic lawnmower, the mathematical
mowing value per hour is used. The settings are configured under the Timer
menu item. The mathematical mowing value includes mowing and charging
times. The following formula can be used to calculate the timer settings.
Menu selection
Menu selection with numerous functions.
The robotic lawnmower mows as programmed for a beautiful and evenly
mown lawn. The simple and intuitive menu shows you what to do.

GARDENA ROBOTIC LAWNMOWERS
11 A
Overview of mathematical mowing values: (mowing performance per hour)
R40Li 30 m²; R70Li 45 m²; SILENO 56 m²; SILENO+ 56 m².
In order to calculate the required mowing times per day, taking into account
individual needs, there are very simple calculation methods.
Our example assumes a lawn area of 150 m² that is to be mowed
A
7 days per week (daily mowing)
B
5 days per week (intensive use of the lawn at weekends, excluding
Saturday and Sunday from the mowing cycle)
Example A
Daily active time = lawn area : mowing performance
E.g. R40Li: 150 : 30 m² = 5 hours of active time
or SILENO: 150 : 56 m² = 2.7 hours of active time (rounded to 3 hrs)
Example B
Active time on 5 days/week (e.g. R40Li, 150 m2 lawn area)
Step 1: Lawn area : mowing performance = daily active time
(150 : 30 = 5 hrs)
Step 2: Daily active time x 7 days = required, maximum active time for
this area (5 x 7 = 35 hrs)
Step 3: Reduction to 5 days (exclusion of Sat/Sun) max. active time :
5 days (35 : 5 = 7 hrs)
Overview of mowing times for a lawn area of 150 m²
Lawn area: 150 m2Example AExample B
Robotic lawnmower model Timer setting for 7 days of
active time
Timer setting for 5 days
of active time (no mowing
operation Sat/Sun)
R40Li 5 hours 7 hours
R70Li 3.5 hours 5 hours
SILENO 3 hours 4 hours
SILENO+ 3 hours 4 hours

GARDENA ROBOTIC LAWNMOWERS
12 A
GARDENA SILENO/SILENO+
Robotic Lawnmowers
The new robotic lawnmower generation
• Gradients of up to 35% and uneven areas of lawn
• Cutting capacity of up to 1000m² (SILENO) or 1300m² (SILENO+)
• SensorControl — the mowing frequency is automatically adjusted to the
grass growth (SILENO+)
• EasyPassage — the robotic lawnmower identifies and masters narrow
corridors on the way to and from the charging station itself, without any
extra programming
• Simple, intuitive to use — large keypad and display
• Works quietly — 60dB(A), so it will not bother anyone, including the
neighbours
For large and complex areas
of lawn
The robotic lawnmower is high-
performance and is suitable for big
lawns or lawns full of nooks and
crannies.
New!
Also available as a smart version
Convenient system networking and app
control from any location!

GARDENA ROBOTIC LAWNMOWERS
13 A
Item description SILENO Robotic
Lawnmower SILENO+ Robotic Lawnmower
Lawn area Up to 1000 m² Up to 1300 m²
Charging time approx. 60 min. 60 min.
Approx. mowing time per
charge 60 min. 60 min.
Power consumption Approx. 8 kWh/month Approx. 9 kWh/month
Accessories 200m boundary wire, 400pegs,
7connectors, 5 connecting
terminals, 9 replacement blades
250m boundary wire, 400pegs,
7connectors, 5 connecting
terminals, 9 replacement blades
Power Lithium-ion battery 18 V/2.1 Ah Lithium-ion battery 18 V/2.1 Ah
Charging system Automatic Automatic
Max. gradient Up to 35 % Up to 35 %
Cutting height, adjustable 2 - 6 cm 2 - 6 cm
Display LCD with set-up menu LCD with set-up menu
Weight ~9 kg ~9 kg
Security setting PIN code, alarm PIN code, alarm
Sensors
Collision, lifting and tilt sensor
Collision, lifting and tilt sensor,
SensorControl — adjusts the
mowing frequency to grass growth
Guaranteed sound power
level in dB(A) 60 60
Item no. 4052 4054
House for the robotic lawnmower
The robotic lawnmower models SILENO/SILENO+
park up here, protected from the sun and bad
weather. Art. no. 4011
Comparison of new robotic lawnmowers
New!
New! New!

GARDENA ROBOTIC LAWNMOWERS
14 A
GARDENA Robotic Lawnmowers
R40Li/R50Li/R70Li/R80Li
• Gradients of up to 25%
• Cutting capacity — up to 400 m² (R40Li) or 500 m² (R50Li), 700 m²
(R70Li) or 800 m² (R80Li)
• Easy installation and maintenance
• SensorCut system — uniform and stripe-free mowing
• Works quietly — max. 60dB(A), so it will not bother anyone, including
the neighbours
For medium-sized lawns
The robotic lawnmower is high-
performance and is suitable for
medium-sized lawns.
For moderately complex
gardens
For lawns that are moderately
complex or that have a winding
structure, the robotic lawnmower
offers more customisable settings.
For smaller lawns
The trend is moving towards
smaller garden plots. Users
can spend more time on their
vegetable and flower beds or take
more time for themselves and let
the robotic mower take care of
cutting the lawn.
For more simple gardens
For lawns with simple structures,
the GARDENA Robotic Lawnmower
allows more free time and
relaxation.
R40Li/R50Li R70Li/R80Li

GARDENA ROBOTIC LAWNMOWERS
15 A
House for the robotic lawnmower
The robotic lawnmower models R40Li/
R50Li/R70Li/R80Li park up here,
protected from the sun and bad weather. Art. no. 4007
Comparison of robotic lawnmowers
Item description R40Li R50Li R70Li R80Li
Lawn area Up to 400 m² Up to 500 m2Up to 700 m² Up to 800 m2
Charging time approx. 50 min. 50 min.
Approx. mowing time per
charge
70 min. 65 min.
Energy consumption/month Approx. 5 kWh Approx. 5 kWh Approx. 6 kWh Approx. 7 kWh
Accessories 150m boundary wire,
200pegs, 7 connectors,
5connecting terminals,
3replacement blades
200m boundary wire, 400pegs,
7 connectors, 5 connecting
terminals, 3 replacement blades
Power Lithium-ion battery 18 V/2.1 Ah Lithium-ion battery 18 V/2.1 Ah
Max. gradient Up to 25 % Up to 25 %
Cutting height, adjustable 2 - 5cm 2 - 5 cm
Display LCD with set-up menu LCD with set-up menu
Weight 7 kg 7 kg
Security setting PIN code, alarm PIN code, alarm
Sensors Collision, lifting and tilt sensor Collision, lifting and tilt sensor
Guaranteed sound power
level dB(A) 58 60
Item no. 4071-20 4077-20 4072-20 4069-20

GARDENA ROBOTIC LAWNMOWERS
16 A
What customers want to know
Here you will find answers to the most frequently asked questions from
customers. These will help you prepare well for consultations, demonstrate
impressive detailed knowledge and increase anticipation with respect to the
robotic lawnmower.
Is an installation service available for my garden?
Installation of the GARDENA Robotic Lawnmower is generally very easy so
that you can do it yourself. However, if you do wish to engage an installation
service, GARDENA works with independent service partners who carry out
installations. If you have any questions about installation, please contact your
local installation service. The price for installation depends on local conditions
such as the size and complexity of the lawn, for example.
Is a planning service available for my garden?
If you send a true-to-scale drawing of the area (1:100 or 1:200), GARDENA
will offer to mark the ideal position of the charging station and will suggest
where to lay the boundary and guide wires.
Can I install the charging station in a corner or alcove?
It depends on the model. With SILENO and SILENO+ Robotic Lawnmowers,
the position of the charging station can be customised. With other models,
the position of the charging station must be selected in such a way that the
boundary wire can be laid in a straight line for at least 1.5 m to the left and
right of it. Problems could arise if you select a different location or a corner
position. Please always observe the installation instructions in the instruction
manual.
Planning and installation

GARDENA ROBOTIC LAWNMOWERS
17 A
Can the GARDENA Robotic Lawnmower handle gradients too?
The GARDENA Robotic Lawnmower can handle gradients within the working
area of between 25% and 35% depending on the model (this means a height
difference of 25 cm or 35 cm over 1 metre).
Can the GARDENA Robotic Lawnmower handle uneven lawn surfaces
as well?
The GARDENA Robotic Lawnmower can handle uneven surfaces thanks to its
large wheels. The four-wheel SILENO and SILENO+ models in particular are
ideal for uneven and bumpy lawn surfaces.
I have a beautiful flower bed and trees that I would like to protect. Is
that possible?
Of course — just lay the boundary wire correctly around beds, trees, bushes
and other objects and the GARDENA Robotic Lawnmower will keep away from
these areas and therefore will not damage flowers, trees, bushes, etc. To do
this, please follow the instructions in the instruction manual.
Can I use the GARDENA Robotic Lawnmower in two separate working
areas?
If the working area consists of two areas that the lawnmower cannot travel
between, it is preferable to create an adjoining area. In this case, the robotic
lawnmower must be carried between the main area and the adjoining area
manually so that the lawn on the adjoining area can be mown.
Which system does the GARDENA Robotic Lawnmower work on?
The GARDENA Robotic Lawnmower operates on the SensorCut system. It cuts
in various directions. As a result it makes the grass robust and provides the
lawn with a level, uniform and clean cross section without leaving visible
tracks.
Garden types
Operation

GARDENA ROBOTIC LAWNMOWERS
18 A
What does the boundary wire do?
The boundary wire defines the robotic lawnmower’s working area.
What does the guide wire do?
The guide wire is a patented solution and is firstly required to guide the
GARDENA Robotic Lawnmower back to the charging station; secondly, it leads
the lawnmower away from the charging station to remote parts of the garden.
It helps the lawnmower to quickly find the charging station without creating
ruts and makes sure that all lawn is evenly mown, even in garden areas which
are further away from the station.
Do I have to bury the robotic lawnmower’s boundary and guide
wires?
No, both wires can be laid on the ground and fixed in place using the pegs
provided. After a few weeks the grass will grow over the cables. Alternatively,
the cable can be laid in the ground down to a depth of 20 cm.
Why aren’t the blades fixed firmly in place?
A safety function of many of the robotic lawnmowers is that the blades are
freely hung so that if they touch obstacles (e.g. fruit, branches), they fold
away. Whilst mowing, they accelerate outwards through centrifugal force and
cut the grass. However, if the blades come across an object, they immediately
slacken and retract.
What customers want to know
Guide and boundary wires
Safety

GARDENA ROBOTIC LAWNMOWERS
19 A
Does the GARDENA Robotic Lawnmower have an anti-theft device?
Yes, the lawnmower has several anti-theft devices that can be activated.
Important: The GARDENA Robotic Lawnmower cannot be used without the
personal PIN code. This protects the lawnmower from being operated at any
place of installation other than its own. If the lawnmower is stopped manually
or lifted, you will need to enter the PIN code. Otherwise, the alarm will be
triggered.
What happens if the GARDENA Robotic Lawnmower bumps into or is
lifted up by trees or other obstacles?
The robotic lawnmower is equipped with highly-sensitive collision, tilt and
lifting sensors. It will gently touch the obstacle, move back and change
direction. If it is lifted up, the cutting mechanism will stop straight away.
How is it best to clean the lawnmower?
It is important that every robotic lawnmower is always kept clean and free
from a build-up of grass. We recommend cleaning it with a brush and a damp
cloth. However, never clean underneath the lawnmower with running water.
GARDENA offers a range of special cleaning products and tools for the robotic
lawnmowers. Ask our service provider or visit our website.
What should I look out for in winter?
The robotic lawnmower should be carefully cleaned and fully-charged prior
to being put in storage for the winter and should be kept on its wheels in a
dry and frost-free place. If you want to carry out a winter service, instructions
with a check list can be downloaded from the GARDENA website.
www.gardena.com
Maintenance

2016 Pocket Guide
smart system
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