OBJ_BUCH-1356-002.book Page 6 Thursday, May 26, 2011 11:55 AM
6 | English
en
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.
Keep bystanders a safe distance away from
the machine.
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 ma-
STOP
chine 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.
Keep supply flexible cord away from cutting means.
Only use the battery charger indoors.
Battery charger contains a safety transformer.
Operation
f Never allow children or people unfamiliar 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.
f This tool is not intended for use by persons (in-
cluding 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 appliance
by a person responsible for their safety.
Children should be supervised to ensure that they
do not play with the appliance.
f Never mow while people, especially children or
pets, are nearby.
f The operator or user is responsible for accidents
or hazards occurring to other people or their property.
f Do not operate the machine when barefoot or
wearing open sandals, always wear substantial
footwear and long trousers.
f Thoroughly inspect the area where the machine is
to be used and remove all stones, sticks, wires,
bones and other foreign objects.
f Before using, always visually inspect 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.
f Mow only in daylight or in good artificial light.
f Avoid operating the machine in wet grass, where
feasible.
f Walk, never run.
f Never operate the appliance with defective guards
or shields, or without safety devices, for example
deflectors and/or grass catchers in place.
f Working on banks can be dangerous.
– Do not mow excessively steep slopes.
– Always be sure of your footing on slopes or wet
grass.
– Mow across the face of slopes
down.
– Exercise extreme caution when changing direc-
tion on slopes.
– Use extreme caution when stepping back or
pulling the machine towards you.
– Never mow by pulling the mower towards you.
f 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.
f Do not tilt the machine when starting 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.
f Switch on the motor according to the instructions
with feet well away from rotating parts.
f Do not put hands or feet near or under rotating parts.
f Always stand clear of the discharge zone when op-
erating the machine.
f Never pick up or carry the machine while the motor
is running.
f Do not modify this product. Unauthorized modifi-
cations may impair the safety of your product and
may result in increased noise and vibration.
– never up and
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 ma-
chine for damage and make repairs as necessary,
– if the machine starts to vibrate abnormally
(check immediately).
Maintenance
f Always wear gardening gloves when handling or
working near the sharp blades.
f Keep all nuts, bolts and screws tight to be sure
that the machine is in safe working condition.
f Check the grass catcher frequently for wear or de-
terioration.
f Examine the machine and replace worn or dam-
aged parts for safety.
f Ensure replacement cutting means of the right
type are used.
f Ensure replacement parts fitted are Bosch ap-
proved.
Recommendations for Optimal Handling of
the Battery
f Ensure the switch is in the off position before in-
serting battery pack. Inserting the battery pack into
machines that have the switch on invites accidents.
f Keep the battery charger away from rain or mois-
ture. Penetration of water in the battery charger
increases the risk of an electric shock.
f 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.
f Do not charge other batteries. The battery charg-
er is suitable only for charging Bosch lithium ion
batteries within the listed voltage range. Otherwise there is danger of fire and explosion.
f Keep the battery charger clean. Contamination
can lead to danger of an electric shock.
f 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.
F 016 L70 762 | (26.5.11)Bosch Power Tools
OBJ_BUCH-1356-002.book Page 7 Thursday, May 26, 2011 11:55 AM
English | 7
f Do not operate the battery charger on easily in-
flammable surfaces (e. g., paper, textiles, etc.) or
surroundings. The heating of the battery charger
during the charging process can pose a fire hazard.
f Use only Bosch battery packs intended specifi-
cally for the machine. Use of any other battery
packs may create a risk of injury and fire.
f 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.
f 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.
f Do not open the battery. Danger of short-
circuiting.
f Protect the battery against heat, e. g., against
continuous intense sunlight, fire, water, and
moisture. Danger of explosion.
f Do not short-circuit the battery. There is danger
of explosion.
f In case of damage and improper use of the bat-
tery, vapours may be emitted. Provide for fresh
air and seek medical help in case of complaints.
The vapours can irritate the respiratory system.
f Protect the battery against moisture and water.
f Store the battery only within a temperature range
between 0 ° C and 50 °C. As an example, do not
leave the battery in the car in summer.
f Occasionally clean the venting slots of the battery
using a soft, clean and 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
Wear protective gloves
Weight
Switching On
Switching Off
Permitted action
Prohibited action
Accessories/Spare Parts
Intended Use
The garden product is intended for domestic lawn
mowing.
Technical Data
Cordless LawnmowerRotak 34 LIRotak 37 LIRotak 43 LI
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)**
Number of battery cells
Battery
Article number
Rated voltage
Capacity
Charging period (battery discharged)**
Number of battery cells
Battery Charger
Article number
Charging current
Allowable charging temperature range
Weight according to EPTA-Procedure 01/2003
Protection class
Battery ChargerAL 3640 CV
Article number
Charging current
Allowable charging temperature range
Weight according to EPTA-Procedure 01/2003
Protection class
*with the blanking plate removed
**with AL 3640 CV Professional charger
Please observe the article number on the type plate of your garden product. The trade names of the individual
garden products may vary.
3 600 H81 E..3 600 H81 J..3 600 H81 K..
cm343743
mm20 – 70*20 – 70*20 –70 *
l404050
kg12.813.013.7
see type plate on the garden product
Li-IonLi-IonLi-Ion
2 607 336 107 2 607 336 107 2 607 336 107
V=363636
Ah2.62.62.6
min606060
202020
Li-IonLi-IonLi-Ion
2 607 336 005 2 607 336 005 2 607 336 005
V=363636
Ah4.54.54.5
min959595
303030
AL 3620 CV
Professional
EU
2 607 225 657
UK
2 607 225 659
AU
2 607 225 661
A2.02.02.0
°C0– 450 – 450 – 45
kg0.60.60.6
Professional
EU
2 607 225 099
UK
2 607 225 101
AU
2 607 225 103
A4.04.04.0
°C0– 450 – 450 – 45
kg1.01.01.0
AL 3620 CV
Professional
2 607 225 657
2 607 225 659
2 607 225 661
/II/II/II
AL 3640 CV
Professional
2 607 225 099
2 607 225 101
2 607 225 103
/II/II/II
AL 3620 CV
Professional
2 607 225 657
2 607 225 659
2 607 225 661
AL 3640 CV
Professional
2 607 225 099
2 607 225 101
2 607 225 103
Bosch Power ToolsF 016 L70 762 | (26.5.11)
OBJ_BUCH-1356-002.book Page 8 Thursday, May 26, 2011 11:55 AM
8 | English
Noise/Vibration Information
Measured sound values determined according to 2000 / 14/EC (1.60 m
height, 1 m distance away).
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
Declaration of Conformity
We declare under our sole responsibility that the product described under “Technical data” is in conformity with the following standards or
standardization documents: EN 60335, EN 50338 (battery powered
product) and EN 60335 (battery charger) according to the provisions of
the directives 2006/95/EC, 2004/108/EC, 2006/42/EC, 2000/14/EC.
2000/14/EC: Guaranteed sound power level
Conformity assessment procedure according to Annex VI.
3 600 ... H81 E.. H81 J.. H81 K..
dB(A)
dB(A)
m/s
m/s
3 600 ... H81 E.. H81 J.. H81 K..
dB(A)90.090.091.0
dB
81.0
89.4
=0.6
2
<2.5
2
=1.5
81.0
89.7
=0.3
<2.5
=1.5
81.0
90.2
=0.8
<2.5
=1.5
Equipment category: 32
Notified body:
SRL, Sudbury, England, Nr. 1088
Technical file at:
Bosch Lawn and Garden Ltd., PT-LG/EAE,
Stowmarket, Suffolk IP14 1EY, England
08
Dr. Egbert Schneider
Senior Vice President
Engineering
Robert Bosch GmbH, Power Tools Division
D-70745 Leinfelden-Echterdingen
14.09.2010
Dr. Eckerhard Strötgen
Head of Product
Certification
Mounting and Operation
ActionFigure
Delivery Scope1
Handle Assembly2
Snap together the Grassbox3
Grassbox fitting/removing4
Battery Charging5
Inserting/Removing the Battery6
Remove Isolator Key and fit in the Storage
Position
Adjusting the Cutting Height8
Starting9
Stopping9
Working Advice9
Blade Maintenance11
Selecting Accessories12
7
– 10
Starting
For Your Safety
f Warning! Switch off, remove the isolator key and
the battery before adjusting, cleaning or if cable
is cut, damaged or entangled.
f The blades continue to rotate for a few seconds
after the machine is switched off.
f Caution
Battery Charging
f Do not use other battery chargers. The supplied
f Observe the mains voltage! The voltage of the
– do not touch the rotating blade.
battery charger is designed for the Lithium-Ion battery in your garden product.
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 is supplied 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
lithium ion battery against deep discharging. When the
battery is run down or discharged, the garden product
is shut off by means of a protective circuit: The blade
no longer moves.
W
ARNIN
product has been automatically switched off. The
battery can be damaged.
Do not continue to press the
G
On/Off switch after the garden
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
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
F 016 L70 762 | (26.5.11)Bosch Power Tools
OBJ_BUCH-1356-002.book Page 9 Thursday, May 26, 2011 11:55 AM
English | 9
Continuous lighting of the green charge control LED
signals 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 and
above 45 °C
AL 3640 CV
Professional
AL 3620 CV
Professional
Continuous lighting of the red LED indicates that the
battery temperature is not within the rapid-charging
temperature range of 0 °C
lowable 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.
– 45 ° C. As soon as the al-
No charging procedure possible
AL 3640 CV
Professional
AL 3620 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.
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.
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 pushing button or pressing
the On/Off switch (when the battery is inserted): The
battery is not wihin the temperature range for operation of
–10 ° C to + 60 °C.
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
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.
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 (battery duration).
To improve the area of cut (battery duration) it is recommended to cut more frequently, raise the cutting
height and walk at a normal pace.
The example below shows impact of conditions
against run time, for one battery.
Cutting Conditions
Very light, dry
grass
6cm
4cm
up to 300 m
up to 300 m
up to 300 m
*with battery 2 607 336 107
To increase the run time an additional battery or high-
er capacity battery (Ah) can be purchased from an authorised customer service agent for Bosch garden
products.
Light, dry grass Medium, dense
8cm
4cm
Area of cut (Rotak 34 LI)*
2
up to 150 m2up to 100 m
Area of cut (Rotak 37 LI)*
2
up to 150 m2up to 100 m
Area of cut (Rotak 43 LI)*
2
up to 150 m2up to 100 m
grass
15cm
4cm
2
2
2
Working Advice
Battery Charge-control Indication
The battery is equipped with a charge-control indicator which indicates its charge condition. The chargecontrol 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
Continuous lighting of 2 green LEDs
Continuous lighting of 1 green LED
Flashing of 1 green LEDReserve
Bosch Power ToolsF 016 L70 762 | (26.5.11)
≥ 2/3
≥ 1/3
≤ 1/3
OBJ_BUCH-1356-002.book Page 10 Thursday, May 26, 2011 11:55 AM
10 | English
Troubleshooting
STOP
ProblemPossible CauseCorrective Action
Garden product
fails to operate
Motor starts and
stops immediately
Garden product
functions
intermittently
Garden product
leaves ragged finish
and/or
Motor labours
Area of cut (battery
duration) not large
enough
Cutting blade not
rotating while garden product
switched on
Excessive vibrations/noise
No charging procedure possible
The charge control
LEDs and respectively, do not light
up after inserting
the mains plug into
the socket
Possible cloggingCheck underneath the garden product and
Battery not fully chargedBattery Charging
Battery not inserted (properly) Inserting the Battery
Fuse faulty/blown in isolator keyContact Service Agent
Grass too longIncrease height of cut and tilt garden prod-
Motor protector has activatedAllow motor to cool and increase height of cut
Battery too hot/coldAllow to cool/warm
Isolator key not inserted correctly/fullyFit correctly
There is a short delay in the motor starting
after engaging the On/Off switch
Battery not fully chargedBattery Charging
Isolator key not inserted correctly/fullyFit correctly
Battery not inserted (properly) Inserting the Battery
Battery too hot/coldAllow to cool/warm
Internal wiring of garden product damaged Contact Service Agent
Motor protector has activatedAllow motor to cool and increase height of
Height of cut too lowIncrease height of cut
Cutting blade bluntReplace the blade
Possible cloggingCheck underneath the garden product and
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
An additional battery can be purchased from
an authorised customer service agent for
Bosch garden products
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:
rately and disposed of in an environmentally correct
manner.
Batteries no longer suitable for use can be directly returned at:
Great Britain
Robert Bosch Ltd. (B.S.C.)
P.O. Box 98
Broadwater Park
North Orbital Road
Denham
Uxbridge
UB 9 5HJ
Tel. Service: +44 (0844) 736 0109
Fax: +44 (0844) 736 0146
E-Mail: boschservicecentre@bosch.com
Battery packs/batteries:
Subject to change without notice.
According to the European law
2002/96/EC, 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 sepa-
Li-Ion:
Please observe the instructions in
section “Transport”.
Environmental Protection
Rotak 34/ 37 LI
Environmental label “Blue Angel”.
Awarded for low noise and low emission
garden tools.
RAL-UZ 129
Transport
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.
Bosch Power ToolsF 016 L70 762 | (26.5.11)
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