OBJ_DOKU-36087-005.fm Page 1 Tuesday, December 16, 2014 9:46 AM
Robert Bosch GmbH
Power Tools Division
70764 Leinfelden-Echterdingen
GERMANY
www.bosch-garden.com
F 016 L81 158 (2014.12) O / 20 XXX
Rotak
37-36 LI Ergo | 43 LI-2 Ergoflex
37 LI Ergoflex | 43 LI Ergoflex | 410 LI Ergoflex
en Original instructions
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2 | English
English
Safety Notes
Warning! Read these instructions
carefully, be familiar with the controls and the proper use of the machine. Please keep the instructions
safe for later use!
Explanation of symbols on the machine
General hazard safety alert.
Read instruction manual.
Pay attention that bystanders
are not injured through foreign
objects thrown from the machine.
Warning: Keep a safe distance
from the machine when operating.
Caution: Do not touch rotating
blades. Sharp blade(s). Beware
of severing toes or fingers.
Switch off and remove isolator
key before adjusting, cleaning
and before leaving the product
unattended for any period.
Not applicable.
Wait until all machine components have completely stopped
before touching them. The
blades continue to rotate after the machine is switched off, a rotating blade
can cause injury.
Do not use the machine in the
rain or leave it outdoors when it
is raining.
Beware electric shock hazard.
Not applicable.
Only use the battery charger indoors.
Battery charger contains a safety transformer.
Operation
Never allow children or people unfa-
miliar with these instructions to use
the machine. Local regulations may
restrict the age of the operator.
When not in use store the machine
out of reach of children.
This machine is not intended for use
by persons (including children) with
reduced physical, sensory or mental
capabilities, or lack of experience
and knowledge, unless they have
been given supervision or instruction concerning use of the machine
by a person responsible for their
safety.
Children should be supervised to
ensure that they do not play with the
machine.
Never mow while people, especially
children, or pets are nearby.
The operator or user is responsible
for accidents or hazards occurring
to other people or their property.
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English | 3
Do not operate the machine when
barefoot or wearing open sandals,
always wear substantial footwear
and long trousers.
Thoroughly inspect the area where
the machine is to be used and remove all stones, sticks, wires, bones
and other foreign objects.
Before using, always visually in-
spect to see that the blades, blade
bolts and cutter assembly are not
worn or damaged. Replace worn or
damaged blades and bolts in sets to
preserve balance.
Mow only in daylight or in good arti-
ficial light.
Avoid mowing in bad weather condi-
tions especially when there is a risk
of lightning.
Avoid operating the machine in wet
grass, where feasible.
Walk, never run.
Never operate the appliance with
defective guards or shields, or without safety devices, for example deflectors and/or grass catchers in
place.
Always wear ear protection.
Working on banks can be danger-
ous.
– Do not mow on excessively steep
slopes.
– Always be sure of your footing on
slopes or wet grass.
– Mow across the face of slopes –
never up and down.
– Exercise extreme caution when
changing direction on slopes.
Use extreme caution when stepping
back or pulling the machine towards
you.
Never mow by pulling the mower to-
wards you.
Stop the blades if the machine has
to be tilted for transportation when
crossing surfaces other than grass
and when transporting the machine
to and from the area to be mowed.
Do not tilt the machine when start-
ing or switching on the motor, except if the machine has to be tilted
for starting in long grass. In this
case, do not tilt it more than absolutely necessary and tilt only the
part which is away from the operator. Always ensure that both hands
are in the operating position before
returning the machine to the
ground.
Switch on the motor according to
the instructions with feet well away
from rotating parts.
Do not put hands or feet near or un-
der rotating parts.
Always stand clear of the discharge
zone when operating the machine.
Never pick up or carry the machine
while the motor is running.
Do not modify this product. Unau-
thorized modifications may impair
the safety of your product and may
result in increased noise and vibration.
Regularly inspect the supply cable
and any extension cables. Do not
connect damaged cables to the supply or touch a damaged cable before
it is disconnected from the supply.
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4 | English
A damaged cable can lead to contact with live parts. Beware electric
shock hazard.
Leaf Collect
The leaf collect blade has been designed to allow you to pick up autumn
leaves from your lawn. In order for this
functionality to work within optimal parameters, please note the following:
– only collect leaves with the machine
set at 70 mm cutting hight
– collect leaves from your lawn only
– before collecting leaves inspect the
area where the machine is to be used
and keep people, pets, glass struc-
tures and cars away from use
Remove the isolator key:
– Whenever you leave the machine.
– before clearing a blockage,
– before checking, cleaning or working
on the machine,
– after striking a foreign object. Inspect
the machine for damage and make re-
pairs as necessary,
– if the machine starts to vibrate abnor-
mally (check immediately).
Maintenance
Always wear gardening gloves
when handling or working near
the sharp blades.
Keep all nuts, bolts and screws tight
to be sure that the machine is in safe
working condition.
Check the grass catcher frequently
for wear or deterioration.
Examine the machine and replace
worn or damaged parts for safety.
Ensure replacement cutting means
of the right type are used.
Ensure replacement parts fitted are
Bosch approved.
Before storage ensure machine is
clean and free from debries, if necessary clean with a soft, dry brush.
Recommendations for Optimal Handling of the Battery
Ensure the switch is in the off po-
sition before inserting battery
pack. Inserting the battery pack into
machines that have the switch on
can cause accidents.
Keep the battery charger away
from rain or moisture. Penetration
of water in the battery charger increases the risk of an electric shock.
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.
Do not charge other batteries. The
battery charger is suitable only for
charging Bosch lithium-ion batteries
within the listed voltage range. Otherwise there is danger of fire and explosion.
Keep the battery charger clean.
Contamination can lead to danger of
an electric shock.
Before each use, check the battery
charger, cable and plug. If damage
is detected, do not use the battery
charger. Never open the battery
charger yourself. Have repairs performed only by a qualified technician and only using original spare
parts. Damaged battery chargers,
cables and plugs increase the risk of
an electric shock.
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English | 5
Do not operate the battery charg-
er on easily inflammable surfaces
(e. g., paper, textiles, etc.) or surroundings. The heating of the bat-
tery charger during the charging
process can pose a fire hazard.
Use only Bosch battery packs in-
tended specifically for the machine. 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 irritations or burns.
Do not open the battery. Danger of
short-circuiting.
Protect the battery against heat,
e. g., against continuous intense
sunlight, fire, water, and moisture. Danger of explosion.
Do not short-circuit the battery.
There is danger of explosion.
In case of damage and improper
use of the battery, vapours may
be emitted. Ventilate the area and
seek medical help in case of com-
plaints. The vapours can irritate the
respiratory system.
Protect the battery against moisture
and water.
Store the battery only within a tem-
perature range between –20 °C
and 50 °C. As an example, do not
leave the battery in the car in summer.
Occasionally clean the venting slots
of the battery using a soft, clean and
dry brush.
Before storage ensure machine is
clean and free from debries, if necessary clean with a soft, dry brush.
Symbols
The following symbols are important for reading and understanding the operating instructions. Please take note of the
symbols and their meaning. The correct interpretation of the
symbols will help you to use the garden product in a better
and safer manner.
SymbolMeaning
Movement direction
Reaction direction
Wear protective gloves
Weight
Switching On
Switching Off
Permitted action
Prohibited action
Accessories/Spare Parts
Intended Use
The garden product is intended for domestic lawnmowing.
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6 | English
Technical Data
Cordless LawnmowerRotak 37-36 LI Ergo/
Rotak 37 LI Ergoflex
Article number
Blade width
Height of cut
Grassbox, capacity
Weight according to EPTA-Procedure 01/2003
Serial number
Battery
Article number
Rated voltage
Capacity
Charging period (battery discharged)*
Charging period (battery discharged)**
Number of battery cells
Battery Charger
cm3743
mm20–7020–70
l4050
kg13.213.9
V=3636
Ah44
min140140
min9595
3 600 HA4 4..3 600 HA4 5..
see type plate on the garden product
Li-IonLi-Ion
F 016 800 346F 016 800 346
2020
AL 3620 CV
Professional
Article number
Charging current
Allowable charging temperature range
Weight according to EPTA-Procedure 01/2003
Protection class
Charging current
Allowable charging temperature range
Weight according to EPTA-Procedure 01/2003
Protection class
*with AL 3620 CV Professional charger
**wit h AL 3640 CV Professional charger
Please observe the article number on the type plate of your gard en product. The trade names of the individual garden products may vary.
Sound emission values determined according to EN 60335-2-77.3 600 ... HA4 4.. HA4 5..
Typically the A-weighted noise levels of the product are:
Sound pressure level
Sound power level
Uncertainty K
Wear hearing protection!
Vibration total values (triax vector sum) determined according to EN 60335:
Vibration emission value a
Uncertainty K
h
dB(A)
dB(A)
dB
m/s
m/s
75
89
=1.0
2
<2.5
2
=1.5
76
90
=1.0
<2.5
=1.5
F 016 L81 158 | (16.12.14)Bosch Power Tools
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Declaration of Conformity
We declare under our sole responsibility that the product described under “Technical data” is
in conformity with all relevant provisions of the directives 2011/65/EU, 2014/30/EU,
2006/42/EC, 2000/14/EC including their amendments and complies with the following
standards: EN 60335-1, EN 60335-2-77.
2000/14/EC: Guaranteed sound power level:
Conformity assessment procedure according to Annex VI.
Equipment category: 32
Notified body:
SRL, Sudbury, England, Nr. 1088
Technical file (2006/42/EC, 2000/14/EC) at:
Bosch Lawn and Garden Ltd., PT-LG/ENS23,
Stowmarket, Suffolk IP14 1EY, England
Henk Becker
Executive Vice President
Engineering
Robert Bosch GmbH, Power Tools Division
70764 Leinfelden-Echterdingen, GERMANY
04.09.2014
Helmut Heinzelmann
Head of Product Certification
PT/ETM9
Mounting and Operation
ActionFigurePage
Delivery Scope
Handle Assembly
Snap together the Grassbox
Grassbox fitting/removing
Battery Charging
Inserting the Battery
Insert Isolator Key and fit in the Stor-
age Position
Adjusting the Cutting Height716
Starting
Working Advice
Stopping, Remove the isolator key
Removing the Battery
Blade Maintenance
Selecting Accessories
112-13
214
3
14-15
415
515
6
16
816-17
917
1017-18
1118
1218
1319
Starting
For Your Safety
Warning! Switch off, remove the isolator key and the
battery before adjusting, cleaning or if cable is cut,
damaged or entangled.
The blades continue to rotate for a few seconds after
the machine is switched off.
Caution – do not touch the rotating blade.
Battery Charging
Do not use other battery chargers. The supplied battery
charger is designed for the Lithium-Ion battery in your garden product.
Observe the mains voltage! The voltage of the power
supply must correspond with the data given on the nameplate of the battery charger. Battery chargers marked with
230 V can also be operated with 220 V.
The battery is equipped with temperature monitoring that allows charging only in the temperature range between 0 ° C
and 45 ° C. In this manner, a high battery service life is
achieved.
Note: The battery supplied is partially charged. To ensure full
capacity of the battery, completely charge the battery in the
battery charger before using your power tool for the first time.
The lithium-ion battery can be charged at any time without reducing its service life. Interrupting the charging procedure
does not damage the battery.
The “Electronic Cell Protection (ECP)” protects the lithiumion battery against deep discharging. When the battery is run
down or discha rged, the garden product is s hut off by means
of a protective circuit: The blade no longer moves.
been automatically switched off. The battery can be damaged.
Charging Procedure
The charging procedure starts as soon as the mains plug of
the battery charger is plugged into the socket outlet and the
battery is inserted into the charging compartment .
Due to the intelligent charging method, the charging condition of the battery is automatically detected and the battery is
charged with the optimum charging current, depending on
battery temperature and voltage.
This gives longer life to the battery and always leaves it fully
charged when kept in the charger for storage.
Rapid-charging Procedure
AL 3640 CV
Professional
AL 3620 CV
Professional
English | 7
3 600 ... HA4 4.. HA4 5..
dB(A)8990
Do not continue to press the On/Off
switch after the garden product has
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8 | English
The rapid-charging procedure is indicated by flashing of the
green charge control LED .
Indication element of the battery:
During the charging procedure, the three green LEDs light up
one after the other and briefly go out. The battery is fully
charged when the three green LEDs light up continuously. The
three LEDs go out again approx. 5 minutes after the battery
has been fully charged.
Note: The rapid-charging procedure is only possible when the
battery temperature is within the allowable charging temperature range, see section “Technical Data”.
Battery Charged
AL 3640 CV
Professional
AL 3620 CV
Professional
Continuous lighting of the green charge control LED sig-
nals that the battery is fully charged.
Additionally, a signal tone sounds for approx. 2 seconds,
which acoustically indicates that the battery is fully charged.
Afterwards, the battery can be removed for immediate use.
With no battery inserted, continuous lighting of the green
charge control LED indicates that the mains plug is plugged
into the socket and that the battery charger is ready for operation.
Battery Temperature below 0 °C or above 45 °C
AL 3640 CV
Professional
AL 3620 CV
Professional
Continuous lighting of the red LED indicates that the bat-
tery temperature is not within the rapid-charging temperature
range of 0 ° C – 45 ° C. As soon as the allowable temperature
range is reached, the battery charger automatically switches
to rapid charging.
When the battery is not within the allowable temperature
range, the red battery LED lights up when inserting the battery into the battery charger.
No charging procedure possible
AL 3640 CV
Professional
If a different malfunction of the charging procedure is present, this will be indicated through flashing of the red charge control LED .
The charging procedure cannot be started and the battery
cannot be charged (see section “Troubleshooting”).
Charging Advice
With continuous or several repetitive charging cycles without
interruption, the charger can warm up. This is not meaningful
and does not indicate a technical defect of the battery charger.
A significantly reduced working period after charging indicates that the battery is used and must be replaced.
Observe the notes for disposal.
Battery Cooling (Active Air Cooling)
The fan control integrated in the battery charger controls the
temperature of the inserted battery. When the battery temperature is above 30 ° C, a fan cools down the battery to the
optimal charging temperature. The switched-on fan produces
a fan noise.
The battery temperature is within the optimal charging temperature range when the fan is not running. Another reason
for a non working fan might be that it is defective. In this case,
the charging time of the battery might be extended.
Working Advice
Battery Charge-control Indication
The battery is equipped with a charge-control indicator
which indicates its charge condition. The charge-control indicator consists of 3 green LEDs.
Press the button to actuate the charge-control indicator . After approx. 5 seconds, the charge-control indicator goes out
automatically.
The charge condition can also be checked when the battery is
removed.
LED IndicatorsBattery Capacity
Continuous lighting of 3 green LEDs≥ 2/3
Continuous lighting of 2 green LEDs≥ 1/3
Continuous lighting of 1 green LED≤ 1/3
Flashing of 1 green LEDReserve
When no LED lights up after actuating the button , the battery
is defective and must be replaced.
For safety reasons, the charge condition of the battery can
only be checked when the garden product is at a standstill.
During the charging procedure, the three green LEDs light up
one after the other and briefly go out. The battery is fully
charged when the three green LEDs light up continuously. The
three LEDs go out again approx. 5 minutes after the battery
has been fully charged.
AL 3620 CV
Professional
F 016 L81 158 | (16.12.14)Bosch Power Tools
6cm4cm
8cm4cm
STOP
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Temperature Control Indicator
The red LED signals that the battery or the electronics of the
garden product (with battery inserted) are not within the optimum temperature range. When this occurs the garden product will not operate or not at full capacity.
Temperature Control of the Battery
The red LED flashes when you press the button or the On/Off
switch (with battery inserted): The battery is outside of the
permitted operating temperature range.
The battery switches off at a temperature above 70 ° C until
the optimum temperature range is reached again.
Temperature Control of the Garden Product Electronics
Area of Cut (Battery Duration)
The area of cut (battery duration) depends on lawn conditions, grass density, mositure content, grass length and
height of cut.
Switching the machine on and off frequently during cutting
will also reduce the area of cut (batte ry duration).
To improve the area of cut (battery duration) it is recommended to cut more frequently, r aise the cutting height and walk at
a normal pace.
The example below shows impact of conditions against run
time, when using the machine with two batteries.
Cutting Conditions
Very light, dry grassLight, dry grass
The red LED lights up continuously when pressing the
On/Off switch : The temperature of the garden product electronics is below 5 ° C or above 75 ° C.
At a temperature above 90 ° C, the electronics of the garden
product switch off until the temperature is within the allowable temperature range again.
up to 450 m
To increase the run time an additional battery or higher capacity batte ry (A h) can be pur chas ed fro m an a uthor ised c usto mer service agent for Bosch garden products.
English | 9
Area of cut
2
up to 225 m
2
Troubleshooting
ProblemPossible CauseCorrective Action
Machine fails to operatePossible cloggingRemove the isolator key:
Battery not fully chargedBattery Charging
Battery not inserted (properly) Inserting the battery
Grass too longIncrease height of cut and tilt garden product to reduce
Motor protector has activatedAllow motor to cool and increase height of cut
Battery too hot/coldAllow to cool/warm
Isolator key not inserted correct-
ly/fully
There is a short delay in the mo-
tor starting after engaging the
On/Off switch
Motor starts and stops immediately
Battery not fully chargedBattery Charging
Isolator key not inserted correct-
ly/fully
Battery not inserted (properly) Inserting the battery
Battery too hot/coldAllow to cool/warm
Check underneath the garden product and clear out as necessary (always wear protective gloves)
starting load
Fit correctly
Hold On/Off switch for 1 – 3 s to start motor
Fit correctly
Increase height of cut
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10 | English
ProblemPossible CauseCorrective Action
Machine functions
intermittently
Machine leaves ragged finish
and/or
Motor labours
Area of cut (battery duration)
not large enough
Cutting blade not rotating while
garden product switched on
No charging procedure possible Battery contacts contaminated Clean the battery contacts (e. g. by inserting and removing
The charge control LEDs and respectively, do not light up after
inserting the mains plug into the
socket
Internal wiring of machine damaged
Motor protector has activatedAllow motor to cool and increase height of cut
Height of cut too lowIncrease height of cut
Cutting blade bluntReplace the blade
Possible cloggingCheck underneath the garden product and clear out as nec-
Blade fitted upside downRefit blade correctly
Height of cut too lowIncrease height of cut and walk slower
Grass too highIncrease height of cut and walk slower
Grass wet or dampWait until grass is dry and walk slower
Grass is denseIncrease height of cut, walk slower and cut more frequently
An additional battery can be pur-
chased from an authorised customer service agent for Bosch
garden products
The battery is defective, due to a
disconnection in the battery (individual cells)
Mains plug of battery charger not
plugged in (properly)
Socket outlet, mains cable or
battery charger defective
Contact Service Agent
essary (always wear protective gloves)
Contact Service Agent
Clear obstruction (always wear protective gloves)
the battery several times) or replace the battery
Replace the battery
Insert mains plug (fully) into the socket outlet
Check the mains voltage and if necessary, have the battery
charger checked by an authorized customer service station
for Bosch power tools
Maintenance and Service
Battery Maintenance
Warning! Switch off, remove the isolator key, battery
and grassbox before adjusting or cleaning.
Always wear gardening gloves when handling or work-
ing near the sharp blades.
Use the following procedures to enable optimum usage of the
battery:
– Protect the battery against moisture and water.
– Store the battery only within a temperature range between
–20 ° C and 50 ° C. As an example, do not leave the battery
in the car in summer.
– Do not leave the battery in the product in direct sunlight.
– The ideal storage condition for the battery is 5 ° C.
F 016 L81 158 | (16.12.14)Bosch Power Tools
– Occasionally clean the venting slots of the battery using a
soft, clean and dry brush.
A significantly reduced working period after charging indicates that the battery is used and must be replaced.
After-sales Service and Application Service
www.bosch-garden.com
In all correspondence and spare parts orders, please always
include the 10-digit article number given on the type plate of
the garden product.
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English | 11
Great Britain
Robert Bosch Ltd. (B.S.C.)
P.O. Box 98
Broadwater Park
North Orbital Road
Denham
Uxbridge
UB 9 5HJ
At www.bosch-pt.co.uk you can order spare parts or arrange
the collection of a product in need of servicing or repair.
Tel. Service: (0344) 7360109
E-Mail: boschservicecentre@bosch.com
Ireland
Origo Ltd.
Unit 23 Magna Drive
Magna Business Park
City West
Dublin 24
Tel. Service: (01) 4666700
Fax: (01) 4666888
Australia, New Zealand and Pacific Islands
Robert Bosch Australia Pty. Ltd.
Power Tools
Locked Bag 66
Clayton South VIC 3169
Customer Contact Center
Inside Australia:
Phone: (01300) 307044
Fax: (01300) 307045
Inside New Zealand:
Phone: (0800) 543353
Fax: (0800) 428570
Outside AU and NZ:
Phone: +61 3 95415555
www.bosch.com.au
Republic of South Africa
Customer service
Hotline: (011) 6519600
Gauteng – BSC Service Centre
35 Roper Street, New Centre
Johannesburg
Tel.: (011) 4939375
Fax: (011) 4930126
E-Mail: bsctools@icon.co.za
KZN – BSC Service Centre
Unit E, Almar Centre
143 Crompton Street
Pinetown
Tel.: (031) 7012120
Fax: (031) 7012446
The contained lithium-ion batteries are subject to the Dangerous Goods Legislation requirements. The user can transport
the batteries by road without further requirements.
When being transported by third parties (e. g.: air transport or
forwarding agency), special requirements on packaging and
labelling must be observed. For preparation of the item being
shipped, consulting an expert for hazardous material is required.
Dispatch batteries only when the housing is undamaged.
Tape or mask off open contacts and pack up the battery in
such a manner that it cannot move around in the packaging.
Please also observe possibly more detailed national regulations.
Disposal
Do not dispose of garden products, battery chargers and batteries/rechargeable batteries into household waste!
Only for EC countries:
According to the European law
2012/19/EU, electrical and electronic
equipments that are no longer usable, and
according to the European law 2006/66/EC,
defective or used battery packs/batteries,
must be collected separately and disposed
of in an environmentally correct manner.
Batteries no longer suitable for use can be dire ctly returned
at:
Great Britain
Robert Bosch Ltd. (B.S.C.)
P.O. Box 98
Broadwater Park
North Orbital Road
Denham
Uxbridge
UB 9 5HJ
At www.bosch-pt.co.uk you can order spare parts or arrange
the collection of a product in need of servicing or repair.
Tel. Service: (0344) 7360109
E-Mail: boschservicecentre@bosch.com
Battery packs/batteries:
Li-Ion:
Please observe the instructions in section
“Transport”.