Bosch | ROTAK 34 | Instruction manual | Bosch ROTAK 34 Instruction manual Page 1 Tuesday, September 24, 2013 3:07 PM
Robert Bosch GmbH
Power Tools Division
70745 Leinfelden-Echterdingen
34 R | 37 R | 340 R | 370 R
F 016 L81 043 (2013.09) O / 12 XXX
en Original instructions Page 2 Friday, September 20, 2013 10:44 AM
2 | 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
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.
Not applicable.
Switch off and remove plug from mains before adjusting, cleaning or if the cable is entangled and
before leaving the garden product unattended for
any period. Keep the supply flexible cord away
from the cutting blades.
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.
Keep supply flexible cord away from cutting
 Always wear gardening gloves when handling or working near the sharp blades.
 Never allow children or people unfamiliar with these instructions to use the machine. Local regulations may reF 016 L81 043 | (20.9.13)
strict 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
 The operator or user is responsible for accidents or damage that occur to people or property.
 Do not operate the machine when barefoot or wearing
open sandals, always wear substantial footwear and long
 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 inspect to see that the
blades, blade bolts and cutter assembly are not worn or
damaged. Replace worn or damaged blades and bolts to
preserve balance.
 Mow only in daylight or in good artificial light.
 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.
 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 – never up and down.
– Exercise extreme caution when changing direction on
 Use extreme caution when stepping back or pulling the machine towards you.
 Never mow by pulling the mower towards 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
 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.
 Switch on the motor according to the instructions with feet
well away from rotating parts.
 Do not put hands or feet near or under 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.
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 Keep supply cables and extension cables away from
the blade. The blade can cause damage to the cables and
lead to contact with live parts. Beware electric shock hazard.
 Do not modify this product. Unauthorized modifications
may impair the safety of your product and may result in increased noise and vibration.
 Avoid mowing in bad weather conditions especially when
there is a risk of lightning.
Remove the plug from the socket:
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 repairs as necessary,
– if the machine starts to vibrate abnormally (check immediately).
Power supply
 The voltage indicated on the rating plate must correspond
to the voltage of the power source.
 We recommend that this equipment is only connected into
a socket which is protected by a circuit-breaker that would
be actuated by a 30 mA residual current.
 Only use or replace power supply cables for this unit which
correspond to the types indicated by the manufacturer.
 Never touch the mains plug with wet hands.
 Do not run over, crush or pull the power supply cable or extension lead, otherwise it may be damaged. Protect the cable from heat, oil and sharp edges.
 The extension lead must have a cross section in accordance with the operating instructions and be protected
against splashed water. The connection must not be in water.
Electrical Safety
 Warning! Switch off, remove plug from mains 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.
Your machine is double insulated for safety and requires no
earth connection. The operating voltage is 230 V AC, 50 Hz
(for non-EU countries 220 V, 240 V as applicable). Only use
approved extension cables. Contact your Bosch Service Centre for details.
Extension cords/leads should only be used if they comply
with H05VV-F, H05RN-F types or IEC type design (60227
IEC 53, 60245 IEC 57).
If you want to use an extension cable when operating your
product, only the following cable dimensions should be used:
– 1.0 mm2: max. length 40 m
– 1.5 mm2: max. length 60 m
– 2.5 mm2: max. length 100 m
Bosch Power Tools
Note: If an extension cable is used it must be earthed and connected through the plug to the earth cable of your supply network in accordance with prescribed safety regulations.
If in doubt contact a qualified electrician or the nearest Bosch
Service Centre.
 WARNING! Inadequate extension cables can be dangerous. Extension cable, plug and socket must be of
watertight construction and intended for outdoor use.
It is recommended for increased electrical safety to use a Residual Current Device (RCD) with a tripping current of not
more than 30 mA. Always check your RCD every time you use
If the supply cord is damaged, please contact your nearest
Bosch Service Centre.
For products not sold in GB:
WARNING: For your safety, it is required that the plug attached to the machine is connected with the extension cord.
The coupling of the extension cord must be protected against
splash water, be made of rubber or coated with rubber. The
extension cord must be used with a cable strain relief.
The connection lead must be inspected for signs of visible
damage and ageing at regular intervals and may only be used
if in perfect condition.
Products sold in GB only: Your product is fitted with a
BS 1363/A approved electric plug with internal fuse (ASTA
approved to BS 1362).
If the plug is not suitable for your socket outlets, it should be
cut off and an appropriate plug fitted in its place by an authorised customer service agent. The replacement plug should
have the same fuse rating as the original plug.
The severed plug must be disposed of to avoid a possible
shock hazard and should never be inserted into a mains socket elsewhere.
 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 parts fitted are Bosch approved.
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.
Movement direction
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Wear protective gloves
Permitted action
Prohibited action
Accessories/Spare Parts
Switching On
Switching Off
Intended Use
The garden product is intended for domestic lawn mowing.
Technical Data
Article number
Rated power input
Blade width
Height of cut
Grassbox, capacity
Weight according to EPTA-Procedure 01/2003
Protection class
Serial number
Rotak 34 R
Rotak 37 R
Rotak 340 R
Rotak 370 R
3 600 HA6 1..
3 600 HA6 2..
20 – 70
20 – 70
see type plate on the garden product
The values given are valid for a nominal voltage [U] of 230 V. For different voltages and models for specific countries, these values can vary.
Please observe the article number on the type plate of your garden product. The trade names of the individual garden products may vary.
Starting cycles generate brief voltage drops. Interference with other equipment/machines may occur in case of unfavourable mains system conditions.
Malfunctions are not to be expected for system impedances below 0.36 ohm.
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 82.5 dB(A); sound power level
95 dB(A). Uncertainty K =1 dB.
Vibration total values ah (triax vector sum) and uncertainty K
determined according to EN 60335:
ah <2.5 m/s2, K =1.5 m/s2.
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
according to the provisions of the directives 2011/65/EU,
2004/108/EC, 2006/42/EC, 2000/14/EC.
2000/14/EC: Guaranteed sound power level 96 dB(A). 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/ENS4,
Stowmarket, Suffolk IP14 1EY, England
F 016 L81 043 | (20.9.13)
Henk Becker
Executive Vice President
Helmut Heinzelmann
Head of Product Certification
Robert Bosch GmbH, Power Tools Division
D-70745 Leinfelden-Echterdingen
Mounting and Operation
Delivery Scope
Wheel Assembly
Handle Assembly
Snap together the Grassbox
Grassbox fitting/removing
Adjusting the Cutting Height
Working Advice
Blade Maintenance
Selecting Accessories
6 –7
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Motor refuses to start
Possible Cause
Power turned off
Mains socket faulty
Extension cable damaged
Fuse faulty/blown
Grass too long
Motor protector has activated
Extension cable damaged
Internal wiring of garden product damaged
Motor protector has activated
Garden product leaves ragged Height of cut too low
Cutting blade blunt
Possible clogging
Motor labours
Machine functions
Blade fitted upside down
Blade not rotating while garden Cutting blade obstructed
product switched on
Excessive vibrations/noise
Blade nut/bolt loose
Blade nut/bolt loose
Cutting blade damaged
After-sales Service and Application
In all correspondence and spare parts orders, please always
include the 10-digit article number given on the type plate of
the garden product.
Great Britain
Robert Bosch Ltd. (B.S.C.)
P.O. Box 98
Broadwater Park
North Orbital Road
UB 9 5HJ
Tel. Service: (0844) 7360109
Fax: (0844) 7360146
Origo Ltd.
Unit 23 Magna Drive
Magna Business Park
Bosch Power Tools
Corrective Action
Turn power on
Use another socket
Inspect cable, replace if damaged
Replace fuse
Increase height of cut and tilt garden product
to reduce starting load
Allow motor to cool and increase height of cut
Inspect cable, replace if damaged
Contact Service Agent
Allow motor to cool and increase height of cut
Increase height of cut
Replace the blade
Check underneath the garden product and
clear out as necessary (always wear gardening
Refit blade correctly
Switch off garden product
Clear obstruction (always wear gardening
Tighten blade nut/bolt (17 Nm)
Tighten blade nut/bolt (17 Nm)
Replace the blade
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
Republic of South Africa
Customer service
Hotline: (011) 6519600
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Gauteng – BSC Service Centre
35 Roper Street, New Centre
Tel.: (011) 4939375
Fax: (011) 4930126
KZN – BSC Service Centre
Unit E, Almar Centre
143 Crompton Street
Tel.: (031) 7012120
Fax: (031) 7012446
Western Cape – BSC Service Centre
Democracy Way, Prosperity Park
Tel.: (021) 5512577
Fax: (021) 5513223
Bosch Headquarters
Midrand, Gauteng
Tel.: (011) 6519600
Fax: (011) 6519880
Do not dispose of garden products into household waste!
Only for EC countries:
According to the European directive
2012/19/EU for Waste Electrical and Electronic
Equipment and its implementation into national
law, electrical and electronic equipment that are
no longer usable must be collected separately
and disposed of in an environmentally correct manner.
Subject to change without notice.
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12.3 kg
Bosch Power Tools
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Bosch Power Tools Page 9 Friday, September 20, 2013 10:44 AM
45 mm
55 mm
30 mm
20 mm
70 mm
Bosch Power Tools
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10 |
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Bosch Power Tools Page 11 Friday, September 20, 2013 10:44 AM
| 11
F 016 800 271 (Rotak 34 R)
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F 016 L81 043 | (20.9.13)
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