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Robert Bosch GmbH
Power Tools Division
70745 Leinfelden-Echterdingen
Germany
www.bosch-pt.com
F 016 L70 480 (2008.10) O / 15 XXX
ALR 900 | AVR 1100
en Original instructions
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English . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 6
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10
STOP
8
ALR 900
AVR 1100
4
5
1
2
3
5
4
6
7
9
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C
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1
5
6
5
7
D
7
9
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E
ALR 900
G
F
1
2
!
2
1
3
2
AVR 1100
H
ALR 900
2
1
3
11
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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 tines/blades. Beware of severing
toes or fingers.
Switch off and remove plug from mains
before adjusting, cleaning or if the cable is entangled and before leaving the
machine unattended for any period.
Keep the supply flexible cord away from
the raking tines/blades.
Beware electric shock hazard.
Keep supply flexible cord away from
cutting means.
Wait until all machine components have
completely stopped before touching
STOP
them. The tines/blades continue to rotate after the machine is switched off, a
rotating tine/blade can cause injury.
Do not use the machine in the rain or
leave it outdoors when it is raining.
Operation
f This appliance is not intended for use by per-
sons (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 appliance by a person responsible for their safety.
Children should be supervised to ensure that
they do not play with the appliance.
f Never operate the product when you are tired,
ill or under the influence of alcohol, drugs or
medicine.
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 Never rake/verticut while people, especially
children or pets are nearby.
f The operator or user is responsible for acci-
dents or hazards occurring to other people or
their property.
f Wear hearing protection and safety glasses at
all times while operating the machine.
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 ma-
chine 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 tines and tine assembly are not worn,
damaged or loose.
f Replace worn or damaged tine and assem-
blies in sets to preserve balance. On multitined machines, take care as rotating one tine
can cause other tines to rotate.
f Wear full eye protection when using the ma-
chine without the catcher.
f Walk, never run.
f Rake/Verticut only in daylight or in good artifi-
cial light.
f Avoid operating the machine in wet grass,
where feasible or take additional precautions
to avoid slipping.
F 016 L70 480 | (10.10.08) Bosch Power Tools
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f Raking/Verticutting on banks can be danger-
ous.
f Do not rake/verticut excessively steep slopes.
– Always be sure of your footing on slopes or
wet grass.
– Rake/Verticut across the face of slopes – nev-
er up and down.
– Exercise extreme caution when changing di-
rection on slopes.
– Use extreme caution when stepping back or
pulling the machine towards you.
f Never rake/verticut by pulling the machine to-
wards you.
f Stop the machine if the machine has to be tilt-
ed for transportation when crossing surfaces
other than grass and when transporting the
machine to and from the area to be raked/verticut.
f Never operate the machine without the catch-
er or deflector guard in position.
f Switch on the motor according to the instruc-
tions with feet well away from rotating parts.
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 if 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 Do not put hands or feet near or under rotat-
ing parts.
f Always stand clear of the discharge zone
when operating the machine.
f Never pick up or carry the machine while the
motor is running.
f Be careful during adjustment of the machine
to prevent entrapment of the feet and hands
between moving tines/blades and fixed parts
of the machine.
f 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. A damaged cable can lead to contact with
live parts. Beware electric shock hazard.
f Do not touch the tines before the machine is
disconnected from the supply and the tines
have come to a complete stop.
f Keep supply cables and extension cables
away from the tines. The tines can cause
damage to the cables and lead to contact with
live parts. Beware electric shock hazard.
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 ma-
chine for damage and make repairs as necessary,
– if the machine starts to vibrate abnormally
(check immediately).
Maintenance
f Keep all nuts, bolts and screws tight to be
sure that the machine is in safe working condition.
f Check the catcher frequently for wear or dete-
rioration.
f Examine the machine and replace worn or
damaged parts for safety.
f Ensure replacement parts fitted are Bosch ap-
proved.
f Always wear gardening gloves when handling
or working near the sharp tines/blade.
Power supply
f The voltage indicated on the rating plate must
correspond to the voltage of the power
source.
f 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.
f Only use or replace power supply cables for
this unit which correspond to the types indicated by the manufacturer. See the operating
instructions for the order no. and types.
f Never touch the mains plug with wet hands.
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f Do not run over, crush or pull the power sup-
ply cable or extension lead, otherwise it may
be damaged. Protect the cable from heat, oil
and sharp edges.
f 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.
f Always wear gardening gloves when handling
or working near the sharp tines/blade.
Functional Description
Read all safety warnings and all instructions. Failure to follow the
warnings and instructions may result
in electric shock, fire and/or serious
injury.
Intended Use
This product is intended for domestic, lawn raking, scarifying or verticutting of lawn.
At higher height of cut level the product is intended for collection of leaves in the lawn area.
Delivery Scope
Carefully remove the machine from its packaging
and check if the following parts are complete:
– Lawnraker (ALR 900)/Verticutter (AVR 1100)
– Handle bottom
– Handle top
– Grassbox top
– Grassbox bottom
(packed inside grassbox top)
–4Bolts
– 4 Wing nuts
– 2 Cable clips
– Operating instructions
When parts are missing or damaged, please contact your dealer.
When fully assembled the machine weighs approximately 9.9–10.4 kg. If necessary, obtain assistance to remove from packaging.
Take care when removing from packaging or carrying the machine to the lawn, as the
tines/blades are sharp.
Product Features
The numbering of the components shown refers
to the representation of the machine on the
graphic pages.
1 Handle top
2 Switch lever
3 Safety button
4 Power plug **
5 Cable restraint
6 Handle bottom
7 Grassbox
8 Ventilation slots
9 Height of cut lever
10 Serial number
** country specific
Accessories shown or described are not part of the
standard delivery scope of the product. A complete
overview of accessories can be found in our accessories program.
F 016 L70 480 | (10.10.08) Bosch Power Tools
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Technical Data
Lawnraker / Verticutter ALR 900 AVR 1100
Article number
Rated power input
Cutting width
Grassbox, capacity
Cutting system
– Double wound tines
– Pivoting blades
Collection system
Height of cut
Weight according to EPTA-Procedure
01/2003
Serial number
W 900 1100
cm 32 32
l5050
mm +10/+5/0/-5 +5/0/-5/-10
kg 9.9 10.4
See serial number 10 (type plate) on the machine
3 600 H8A 0.. 3 600 H8A 1..
z
–
Jet Collect Jet Collect
–
z
Noise/Vibration Information
Measured values determined according to
2000/14/EC (1.60 m height, 1.0 m distance
away) and EN ISO 5349.
Typically the A-weighted noise levels of the product are: Sound pressure level 78 dB(A); Guaranteed sound power level lower than 94 dB(A). Uncertainty K = 3 dB.
The hand-arm acceleration is typically below
2
2.5 m/s
.
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 2004/108/EC,
98/37/EC (until 28 Dec 2009), 2006/42/EC
(from 29 Dec 2009), 2000/14/EC.
2000/14/EC: Measured sound power level
92 dB(A). Conformity assessment procedure according to Annex V.
Technical file at:
Bosch Lawn and Garden Ltd., PT-LG/EAE,
Stowmarket, Suffolk IP14 1EY, England
Leinfelden, 01.07.2008
Dr. Egbert Schneider
Senior Vice President
Engineering
01.07.2008, Robert Bosch GmbH, Power Tools Division
D-70745 Leinfelden-Echterdingen
Dr. Eckerhard Strötgen
Head of Product
Certification
Assembly
For Your Safety
f Warning! Switch off, remove plug from
mains before adjusting, cleaning or if cable
is cut, damaged or entangled.
f The tines/blades continue to rotate for a few
seconds after the machine is switched off.
f Caution – do not touch rotating
tines/blades.
f Always wear gardening gloves when han-
dling or working near the sharp tines/blade.
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A
B
C
D
Electrical Safety
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:
2
–1.0mm
– 1.5 mm
– 2.5 mm
: max. length 40 m
2
: max. length 60 m
2
: max. length 100 m
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.
Cable connections should be kept dry and off
ground.
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 it.
If the supply cord is damaged, it must be replaced by a Bosch Service Centre.
Products sold in GB only: Your product is fitted
with an approved 13 A (BS 1363/A) electric plug
and is protected by a 13 A fuse (ASTA Approved
to BS 1362).
If the fitted plug is not suitable for your socket
outlets, it should be cut off and an appropriate
plug fitted in its place.
The severed plug must be disposed of to avoid a
possible shock hazard and should never be inserted into a 13 A socket elsewhere.
Assembly
f Ensure the cables are not trapped when fold-
ing/unfolding top/bottom handles. Do not
drop the handles.
Assembly of Product
Fix the handle bottom 6 to the body of the machine with two bolts and wing nuts.
Attach the handle top 1 with the bolts and the
wing nuts to the handle bottom 6.
Note: Ensure that the cable clips supplied are
used to fix the cable to the handle.
Attach cable to cable restraint 5 ensuring that
sufficient cable slack is available.
Grassbox
Separate the grassbox top from the grassbox
bottom.
Locate the rear of the grassbox top into the rear
of the grassbox bottom and close the two halves
together.
Fasten the two red clips (one per side).
Attach/remove the grassbox 7 as shown.
Adjusting the Cutting Height
Pull the lever top 9 towards the wheel and then
rotate it to the front or rear of the machine to
achieve the desired cutting height.
Repeat this for both sides of the product.
Make sure that both levers 9 are set to the same
position.
Note: In certain conditions, mud can build up on
the tread of the wheels and/or the machine may
sink slightly into the ground. This can effect the
depth of ground penetration.
Operation
Starting
f The tines/blades continue to rotate for a few
seconds after the machine is switched off.
Allow the motor and tines/ blades to stop ro-
tating before switching “on” again.
f Do not rapidly switch off and on.
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E
F
Note: To aid starting push handle down to lift
front wheels.
Starting
Press and hold the safety button 3.
Squeeze the switch lever 2 towards the
0
handle.
2
Release the safety button 3.
1
I
Stopping
Release the switch lever 2.
Working Advice
Raking/Verticutting
Place the
ALR 900/AVR1100 on
the edge of the lawn, as
close to the power point
as possible. Work away
from the power point.
Position the cable to opposite side (already
raked/verticut lawn) at
the end of each turn.
When raking/verticutting do not allow the
motor to labour.
ALR 900:
When the motor labours the speed of the motor
drops and you will hear a change in the motor
sound. When this occurs, stop raking, release
switch lever 2 and raise the height of cut. Failure
to do so could damage the machine.
AVR 1100:
The motor is protected by a safety cut out which
is activated when the blades become jammed,
clogged or if the motor is overloaded. When this
occurs, stop using the machine.
Auto-Stop
60 sec
Start
The safety cut out will only reset if the switch lever 2 is released.
Remove the plug from the power supply, clear
any obstruction and wait a minute for the safety
cut out to reset before continuing to use the machine.
f Always wear gardening gloves when han-
dling or working near the sharp tines/blade.
Note: When waiting for a reset, operating switch
lever 2 too early with the machine plugged into
the supply will prolong the reset time of the safety cut out.
If the machine cuts out again, increase the height
of cut or postpone use until conditions improve.
Please refer to “trouble shooting table” and “raking/verticutting tips”.
Raking/Verticutting Tips
Optimum conditions for raking/verticutting are
when the grass is short and slightly damp. Raking/Verticutting when the ground is very soft or
hard it will may damage the lawn and will result
in poor collection.
– Kill moss with a proprietary moss killer before
raking/verticutting.
– Start the ALR 900/AVR 1100 at the highest
raking/verticutting position and lower as necessary.
– Rake/Verticut the lawn in the one direction,
then proceed at right angles a week later until
the whole lawn has been completed.
– The action of removing moss and debris dur-
ing raking/verticutting may reveal ragged and
bare patches depending on lawn conditions.
Note: In conditions with excessive tree debris
(e. g. leaves, twigs, etc.) first clear the surface by
using the machine with a height of cut setting of
either 3 or 4.
For best results mow the lawn before reseeding.
Promote the spread of grass into bare and weak
areas with good quality lawn seed after raking/verticutting. Allow fresh grass seed to root
and establish before fertilising, where necessary
water to prevent fresh seeds drying out.
Ideal times for raking/verticutting are spring and
late autumn.
Also lawn can be maintained by raking/verticutting on a higher setting after every six cuts.
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Troubleshooting
The following chart lists problem symptoms, possible causes and corrective action, if your machine
does not operate properly. If these do not identify and correct the problem, contact your service
agent.
f Warning: Switch off and remove plug from mains before investigating fault.
Problem Possible Cause Corrective Action
Machine fails to operate
Machine functions
intermittently
Power turned off Turn power on
Mains socket faulty Use another socket
Extension cable damaged Inspect cable, replace if dam-
aged
Fuse faulty/ blown Replace fuse
Possible clogging Check underneath the machine
and clear out as necessary (al-
ways wear gardening gloves)
Motor protector activated
(AVR 1100 only)
Raking/Verticutting too low for
the conditions
Obstructed rotor Clear obstruction (always wear
Blocked side grilles Clear debris from the outside of
Grassbox full Empty the grassbox regularly
Extension cable damaged Inspect cable, replace if dam-
Internal wiring of machine
damaged
Worn/Missing tines/blades ALR 900:
Conditions too wet Increase height of cut (see “Rak-
Too much debris on the ground See below*
Possible clogging Check underneath the machine
Raking/Verticutting too low for
the conditions
Grass too long Cut grass
Very uneven surface Increase height of cut
Grassbox full Empty the grassbox regularly
See below*
Increase height of cut
gardening gloves)
the side grilles
aged
Contact Service Agent
Fit replacment (see “Remov-
ing/Fitting Raker Tines”)
AVR 1100:
Contact Service Agent
ing/Verticutting Tips”)
and clear out as necessary (al-
ways wear gardening gloves)
Increase height of cut
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G
Problem Possible Cause Corrective Action
Machine labours or belt squeals
Cutting tines/blades not rotating
Excessive vibrations/noise
Poor collection Raking/Verticutting in wet con-
*In conditions with excessive tree debris (e. g. leaves, twigs, etc.) first clear the surface by using the
machine with a height of cut setting of either 3 or 4.
Height of cut too low Increase height of cut (see “Ad-
justing the Cutting Height”)
Cutting tines/blades obstructed
by grass
Belt is slipping or is damaged Contact Service Agent
Cutting tines/blades damaged ALR 900:
ditions
Raking/Verticutting too low for
the conditions
Possible clogging Check underneath the machine
Blocked side grilles Clear debris from the outside of
Missing tine springs (ALR 900
only)
Clear obstruction (always wear
gardening gloves)
Fit replacment (see “Removing/Fitting Raker Tines”)
AVR 1100:
Contact Service Agent
Increase height of cut (see “Raking/Verticutting Tips”)
Increase height of cut
and clear out as necessary (always wear gardening gloves)
the side grilles
Replace tine springs (always
wear gardening gloves)
Maintenance and Service
Maintenance and Cleaning
f Stop, remove plug from the power supply
and remove the grassbox.
f Always wear gardening gloves when han-
dling or working near the sharp tines/blade.
Note: To ensure long and reliable service, carry
out the following maintenance regularly.
Regularly check for obvious defects such as
loose, dislodged or damaged tines/blades, loose
fixings, and worn or damaged components.
Check that covers and guards are undamaged
and correctly fitted. Carry out necessary maintenance or repairs before using.
Bosch Power Tools F 016 L70 480 | (10.10.08)
If the machine should happen to fail despite the
care taken in manufacture and testing, repair
should be carried out by an authorised customer
service agent for Bosch garden products.
In all correspondence and spare parts orders,
please always include the 10-digit article number
given on the type plate of the machine.
Removing/Fitting Raker Tines
f Stop, remove plug from the power supply
and remove the grassbox.
f Always wear gardening gloves when han-
dling or working near the sharp tines/blade.
Turn the machine over.
Use long-nose pliers to grip the tine 12, press
down and remove the tine 12 from the pin 11.
(see figure G)
The new tine 12 is mounted in reverse order.
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H
After Raking or Verticutting/Storage
Clean the exterior of the machine thoroughly using a soft brush and cloth. Do not use water, solvents or polishes. Remove all grass and debris,
especially from the ventilation slots 8.
Turn the machine on its side and clean the
tine/blade area. If grass or dirt is compacted in
the tine/blade area, remove with a wooden or
plastic implement.
f Always wear gardening gloves when han-
dling or working near the sharp tines/blade.
Store the machine in a dry place. Do not place
other objects on top of the machine. To save
space, fold up the handle fully.
f Ensure the cables are not trapped when fold-
ing/unfolding top/bottom handles. Do not
drop the handles.
The machine can be stored with the grassbox disassembled. (see figure H)
After-sales Service and Customer Assistance
Our after-sales service responds to your questions concerning maintenance and repair of your
product as well as spare parts. Exploded views
and information on spare parts can also be found
under:
www.bosch-pt.com
Our customer consultants answer your questions
concerning best buy, application and adjustment
of products and accessories.
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: SPT-Technical.de@de.bosch.com
Ireland
Origo Ltd.
Unit 23 Magna Drive
Magna Business Park
City West
Dublin 24
Tel. Service: +353 (01) 4 66 67 00
Fax: +353 (01) 4 66 68 88
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: +61 (01300) 307 044
Fax: +61 (01300) 307 045
Inside New Zealand:
Phone: +64 (0800) 543 353
Fax: +64 (0800) 428 570
Outside AU and NZ:
Phone: +61 (03) 9541 5555
www.bosch.com.au
Disposal
The machine, accessories and packaging should
be sorted for environmental-friendly recycling.
Only for EC countries:
Do not dispose of power tools into
household waste!
According the European Guideline
2002/96/EC for Waste Electrical
and Electronic Equipment and its
implementation into national right,
power tools that are no longer usable must be
collected separately and disposed of in an environmentally correct manner.
Subject to change without notice.
F 016 L70 480 | (10.10.08) Bosch Power Tools
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