Bosch GRL 400 H Professional User manual

Robert Bosch GmbH
Power Tools Division
70745 Leinfelden-Echterdingen
Germany
www.bosch-pt.com
1 619 929 J22 (2011.06) T / 260 UNI
GRL 400 H Professional
LR 1 Professional
de Originalbetriebsanleitung
en Original instructions
fr Notice originale
es Manual original
pt Manual original
it Istruzioni originali
nl Oorspronkelijke
gebruiksaanwijzing
da Original brugsanvisning
sv Bruksanvisning i original
no Original driftsinstruks
fi Alkuperäiset ohjeet
el Ðñùôüôõðï ïäçãéþí ÷ñÞóçò
tr Orijinal işletme talimat
pl Instrukcja oryginalna
cs Původní návod k používání
sk Pôvodný návod na použitie
hu Eredeti használati utasítás
ru Îðèãèíàëüíîå ðóêîâîäñòâî ïî
ýêñïëóàòàöèè
uk Îðèã³íàëüíà ³íñòðóêö³ÿ ç
åêñïëóàòàö³¿
ro Instrucţiuni originale
bg Îðèãèíàëíà èíñòðóêöèÿ
sr Originalno uputstvo za rad
sl Izvirna navodila
hr Originalne upute za rad
et Algupärane kasutusjuhend
lv Instrukcijas oriģinālvalodā
lt Originali instrukcija
ar
fa
ΕΎϤϴϠόΗϞϴϐθΘϟ΍ΔϴϠλϷ΍
Ϡλ΍ έΎ ίήσ ΎϤϨϫ΍έ
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Bosch Power Tools 1 619 929 J22 | (27.6.11)
Laser Radiation Class 2
do not stare into beam
IEC 60825-1:2007-03
<
1mW, 635 nm
4
5
6
3
2
1
7
8
9
11
12
13
14
15
16
(UK)
16
(EU)
17
10
GRL 400 H
Professional
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1 619 929 J22 | (27.6.11) Bosch Power Tools
4|
30
31
19
20
21
29
28
27
18
23
24
25
26
LR 1
Professional
23
25
23
22 d
c
g
e
f
a
b
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Bosch Power Tools 1 619 929 J22 | (27.6.11)
32
33 31
29
34
35
C
BA
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1 619 929 J22 | (27.6.11) Bosch Power Tools
6|
GR 240:
0 601 094 100
31
36
1 608 M00 05B
15
2 610 A13 782
1 608 M00 05G
7
1 608 M00 05A
35
30
BT 300 HD:
0 601 091 400
38
1 608 M00 05F
2 610 A13 716
(EU)
2 610 A13 717
(UK)
1 608 M00 05C
37
1 608 M00 05E
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English | 15
Bosch Power Tools 1 619 929 J22 | (27.6.11)
Kundendienst und Kundenberatung
Der Kundendienst beantwortet Ihre Fragen zu Reparatur und
Wartung Ihres Produkts sowie zu Ersatzteilen. Explosions-
zeichnungen und Informationen zu Ersatzteilen finden Sie
auch unter:
www.bosch-pt.com
Das Bosch-Kundenberater-Team hilft Ihnen gerne bei Fragen
zu Kauf, Anwendung und Einstellung von Produkten und Zu-
behören.
www.powertool-portal.de, das Internetportal für Handwer-
ker und Heimwerker.
www.ewbc.de,derInformations-PoolfürHandwerkundAus-
bildung.
Deutschland
Robert Bosch GmbH
Servicezentrum Elektrowerkzeuge
Zur Luhne 2
37589 Kalefeld – Willershausen
Tel. Kundendienst: [phone]*
Fax: [phone]*
(*Festnetzpreis 14 ct/min, höchstens 42 ct/min aus Mobil-
funknetzen)
E-Mail: Servicezentrum.Elektr[email protected]
Tel. Kundenberatung: [phone]
(Festnetzpreis 9 ct/min, höchstens 42 ct/min aus Mobilfunk-
netzen)
Fax: [phone]
E-Mail: kundenberatung.e[email protected]
Österreich
Tel.: [phone]
Fax: [phone]
E-Mail: [e-mail]
Schweiz
Tel.: [phone]
Fax: [phone]
Luxemburg
Tel.: [phone]
Fax: [phone]
E-Mail: [email protected]om
Entsorgung
Rotationslaser, Ladegerät, Laserempfänger, Akkus,
Zubehör und Verpackungen sollen einer umweltge-
rechten Wiederverwertung zugeführt werden.
Werfen Sie Rotationslaser, Ladegerät, Laserempfänger und
Akkus/Batterien nicht in den Hausmüll!
Nur für EU-Länder:
Gemäß der europäischen Richtlinie
2002/96/EG müssen nicht mehr ge-
brauchsfähige Elektrogeräte und gemäß
der europäischen Richtlinie 2006/66/EG
müssen defekte oder verbrauchte Akkus/
Batterien getrennt gesammelt und einer
umweltgerechten Wiederverwendung zu-
geführt werden.
Nicht mehr gebrauchsfähige Akkus/Batterien können direkt
abgegeben werden bei:
Deutschland
Recyclingzentrum Elektrowerkzeuge
Osteroder Landstraße 3
37589 Kalefeld
Schweiz
Batrec AG
3752 Wimmis BE
Akkus/Batterien:
Ni-MH: Nickel-Metallhydrid
Änderungen vorbehalten.
English
Safety Notes
Rotational Laser Level
Working safely with the measuring tool is
possibleonlywhentheoperating andsafety
information are read completely and the in-
structions contained therein are strictly fol-
lowed. Never make warning labels on the
measuring tool unrecognisable. SAVE
THESE INSTRUCTIONS.
fCaution – The use of other operating or adjusting
equipmentortheapplication of other processing meth-
ods than those mentioned here, can lead to dangerous
radiation exposure.
fThe measuring tool is provided with a warning label in
English (marked with number 14 in the representation
of the measuring tool on the graphicspage).
fDo not direct the laser beam at persons or animals and
do not stare into the laser beam yourself. This measur-
ing tool produces laser class 2 laser radiation according to
IEC 60825-1. This can lead to persons being blinded.
fDo not use the laser viewing glasses as safety goggles.
The laser viewing glasses are used for improved visualisa-
tionofthelaserbeam,buttheydonotprotect againstlaser
radiation.
IEC 60825-1:2007-03
<1mW, 635 nm
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16 | English
1 619 929 J22 | (27.6.11) Bosch Power Tools
fDonotusethelaser viewing glassesassunglasses or in
traffic. The laser viewing glasses do not afford complete
UV protection and reduce colour perception.
fHave the measuring tool repaired only through quali-
fied specialists using original spare parts. This ensures
that the safety of the measuring tool is maintained.
fDo not allow children to use the laser measuring tool
without supervision. They could unintentionally blind
other persons or themselves.
fDonotoperate the measuring tool inexplosive environ-
ments, such as in the presence of flammable liquids,
gases or dusts. Sparks can be created in the measuring
tool which may ignite the dust or fumes.
fDo not open the battery pack. Danger of short-circuiting.
Protect the battery pack against heat, e.g.,
againstcontinuousintensesunlight,fire,water,
and moisture. Danger of explosion.
fKeep the battery pack not being used away from paper
clips, coins, keys, nails, screws or other small metal ob-
jects that can make a connection from one terminal to
another. Shorting the battery terminals together may
cause burns or a fire.
fUnder abusive conditions, liquid may be ejected from
the battery pack; avoid contact. If contact accidentally
occurs, flush with water. If liquid contacts eyes, addi-
tionally seek medical help. Liquid ejected from the bat-
tery may cause irritations or burns.
fCharge the battery pack only with the battery charger
specifiedin these operating instructions.Achargerthat
is suitable for one type of battery pack may create a risk of
fire when used with another battery pack.
fUse only original Bosch battery packs with the voltage
listed on the nameplate of your measuring tool. When
using other battery packs, e.g. imitations, reconditioned
battery packs or other brands, there is danger of injury as
well as property damage through exploding battery packs.
Keep the laser target plate 37 away from
cardiac pacemakers. The magnets on the
laser target plate generatea field thatcan
impair the function of cardiac pacemakers.
fKeepthelasertargetplate37away from magneticdata
medium and magnetically-sensitive equipment. The ef-
fect of the magnets on the laser targetplate can lead to ir-
reversible data loss.
Battery Charger
Read all safety warnings and all instructions.
Failure to follow the warnings and instructions
may result in electric shock, fire and/or serious in-
jury.
Keep the battery charger away from rain or
moisture. Penetration of water in the battery
charger increases the risk of an electric shock.
fDonotchargeotherbatterieswiththebatterycharger.
The battery charger is only suitable for charging the Bosch
battery/battery pack inserted in the rotational laser level.
Danger of fire and explosion when charging other batter-
ies/battery packs.
fKeep the battery charger clean. Contamination can lead
to danger of an electric shock.
fBefore 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.
fDo not operate the battery charger on easily inflamma-
ble surfaces (e. g., paper, textiles, etc.) or surround-
ings. The heating of the battery charger during the charg-
ing process can pose a fire hazard.
fUnder abusive conditions, liquid may be ejected from
the battery pack; avoid contact. If contact accidentally
occurs, flush with water. If liquid contacts eyes, addi-
tionally seek medical help. Liquid ejected from the bat-
tery may cause irritations or burns.
fSupervise children. This will ensure that children do not
play with the charger.
fChildren or persons that owing to their physical, senso-
ryormental limitations or totheirlackof experience or
knowledge, are not capable of securely operating the
charger, may only use this charger under supervision
or after having been instructed by a responsible per-
son. Otherwise, there is danger of operating errors and in-
juries.
fProducts 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.
Laser Receiver
Read and observe all instructions. SAVE
THESE INSTRUCTIONS FOR FUTURE REF-
ERENCE.
Keep the measuring tool away from car-
diac pacemakers. The magnet plate 22
generates a field that can impair the func-
tion of cardiac pacemakers.
fKeep the measuring tool away from magnetic data me-
dium and magnetically-sensitive equipment. The effect
of the magnet plate 22 can lead to irreversible data loss.
fHave the measuring tool repaired only through quali-
fied specialists using original spare parts. This ensures
that the safety of the measuring tool is maintained.
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English | 17
Bosch Power Tools 1 619 929 J22 | (27.6.11)
fDonotoperatethemeasuringtoolin explosive environ-
ments, such as in the presence of flammable liquids,
gases or dusts. Sparks can be created in the measuring
tool which may ignite the dust or fumes.
Product Description and
Specifications
Intended Use
Rotational Laser Level
The measuring tool is intended for determining and checking
precise horizontal partitions. The measuring tool is not in-
tended for vertical leveling.
The measuring tool is suitable for outdoor use.
Laser Receiver
The measuring tool is intended for swift finding of rotating la-
ser beams in the wavelength listed in the “Technical Data”.
The measuring tool is suitable for indoor and outdoor use.
Product Features
The numbering of the product features refersto the illustra-
tion of the rotational laser level, battery charger and laser re-
ceiver on the graphics page.
Rotational laser level/Battery charger
1Automatic levelling indicator
2On/Off button / shock-warning button
3Shock-warning indicator
4Variable laser beam
5Exit opening for laser beam
6Charge-control indicator
7Battery pack
8Battery compartment
9Locking knob of the battery compartment
10 Locking knob of the battery pack
11 Socket for charge connector
12 Tripod mount 5/8"
13 Serial number of the rotational laser level
14 Laser warning label
15 Battery charger
16 Mains plug of the battery charger
17 Charge connector
Laser receiver*
18 Latch of battery lid
19 On/Off button of laser receiver
20 Button for adjustment of the measuring accuracy
21 Audio signal button
22 Magnet plate
23 Centre mark
24 Reception area for the laser beam
25 Display
26 Laser receiver spirit level
27 Serial number of laser receiver
28 Battery lid
29 Retainer openings for holder
32 Locking screw for holder
33 Holder upper edge
34 Fastening screw of holder
35 Holder
Indicator elements of laser receiver
a“Medium” adjustment indicator
bBattery low indicator
cDirection indicator, up
dAudio signal indicator
eCentre indicator
f“Fine” adjustment indicator
gDirection indicator, down
Accessories/Spare parts
30 Tripod*
31 Construction laser measuring rod*
36 Laser viewing glasses*
37 Laser target plate*
38 Case
* The accessories illustrated or described are not included as
standard delivery.
Technical Data
Rotational Laser Level GRL 400 H
Professional
Article number 3 601 K61 800
Working range (radius)1)
– without laser receiver, ap-
prox.
– with laser receiver, approx.
10 m
200 m
Levelling Accuracy1) 2) ±0.08 mm/m
Self-levelling range, typically ±8%(±5°)
Levelling duration, typically 15 s
Rotational speed 600 min-1
Operating temperature –10...+50 °C
Storage temperature –20...+70 °C
Relative air humidity, max. 90 %
Laser class 2
Laser type 635 nm, <1 mW
Laser beam Ø at the exit open-
ing, approx.1) 5mm
Tripod mount (horizontal) 5/8"-11
Batteries (NiMH)
Batteries (alkali-manganese)
2 x 1.2 V HR20 (D) (9 Ah)
2 x 1.5 V LR20 (D)
1) at 20 °C
2) alongside the axes
Please observe the article number on the type plate of your rotational la-
ser level. The trade names of individual rotational laser levels may vary.
For clear identification of your rotational laser level, see the serial
number 13 on the type plate.
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1 619 929 J22 | (27.6.11) Bosch Power Tools
Assembly
Power Supply of the Rotational Laser Level
Operation with Batteries/Rechargeable Batteries
Using alkali-manganese or rechargeable batteries is recom-
mended for operation of the measuring tool.
To open the battery compartment 8, turn the locking knob 9
to position and pull out the battery compartment.
When inserting the batteries/rechargeable batteries, pay at-
tentiontothecorrectpolarityaccording to the representation
on the inside of the battery compartment.
Always replace all batteries/rechargeable batteries at the
same time. Do not use different brands or types of batteries/
rechargeable batteries together.
Shut the battery compartment 8and turn the locking knob 9
to the position.
In case the batteries/rechargeable batteries have been insert-
ed incorrectly, the measuring tool cannot be switched on. In-
sertthe batteries/rechargeablebatterieswith correct polarity.
fRemove the batteries/rechargeable batteries from the
measuring tool when not using it for longer periods.
When storing for longer periods, the batteries/rechargea-
ble batteries can corrode and discharge themselves.
Operation with Battery Pack
Charge the battery pack 7before using for the first time. The
battery pack can only be charged with the battery charger 15
intended for it.
fObserve the mains voltage! The voltage of the power
source must correspond with the data on the type plate of
the battery charger.
Insert the appropriate mains plug 16 for your mains supply in-
to the battery charger 15 and allow it to engage.
Insert the charge plug 17 of the battery charger into the sock-
et connector 11 of the battery pack. Connect the battery
Operating life time, approx.
– Batteries (NiMH)
–Batteries(alkali-manga-
nese)
30 h
50 h
Weight according to
EPTA-Procedure 01/2003 1.8 kg
Dimensions
(length x width x height) 183 x 170 x 188 mm
Degree of protection IP 56 (protected against dust
and powerful water jets)
Battery Charger
Article number 2 610 A13 782
Rated voltage V~ 100–240
Frequency Hz 50/60
Output voltage V= 7.5
Charging current A1.0
Allowable charging tempera-
ture range °C 0–45
Charging time h14
Number of battery cells 2
Rated voltage
(per battery cell) V= 1.2
Weight according to
EPTA-Procedure 01/2003 kg 0.2
Protection class /II
Laser Receiver LR 1
Professional
Article number 3 601 K15 400
Receivable wavelength 635–650 nm
Working range3) 200 m
Receiving angle 120°
Receivable rotation speed >200min-1
Measuring accuracy4)
– “Fine adjustment”
– “Medium adjustment”
±1mm
±3mm
Operating temperature – 10 °C ... +50 °C
3) The working range (radius) can be reduced due to unfavourable am-
bient conditions (e. g. direct sunlight).
4) depends on clearance between laser receiver and rotational laser level
Please observe the article number on the type plate of your laser receiv-
er. The trade names of individual laser receivers may vary.
For clear identification of your laser receiver, see the serial number 27
on the type plate.
Rotational Laser Level GRL 400 H
Professional
1) at 20 °C
2) alongside the axes
Please observe the article number on the type plate of your rotational la-
ser level. The trade names of individual rotational laser levels may vary.
For clear identification of your rotational laser level, see the serial
number 13 on the type plate.
Storage temperature – 20 °C ... +70 °C
Battery 1x9V6LR61
Operating life time, approx. 50 h
Weight according to
EPTA-Procedure 01/2003 0.36 kg
Dimensions
(length x width x height) 148 x 73 x 30 mm
Degree of protection IP 65 (dust-proof and
protected against powerful
water jets)
Laser Receiver LR 1
Professional
3) The working range (radius) can be reduced due to unfavourable am-
bient conditions (e. g. direct sunlight).
4) depends on clearance between laser receiver and rotational laser level
Please observe the article number on the type plate of your laser receiv-
er. The trade names of individual laser receivers may vary.
For clear identification of your laser receiver, see the serial number 27
on the type plate.
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English | 19
Bosch Power Tools 1 619 929 J22 | (27.6.11)
chargertothe mains supply. Chargingtheempty battery pack
takes approx. 14 h. The battery charger and the battery pack
are protected against overcharging.
A battery that is new or has not been used for a longer period
does not develop its full capacity until after approx. 5 charg-
ing/discharging cycles.
Do not charge the battery pack 7each time after using, other-
wise its capacity will be reduced. Charge the battery pack on-
ly when the charge-control indicator 6flashes or lights up
continuously.
A considerably reduced operating period after charging indi-
cates that the battery pack is used up and must be replaced.
If the battery pack is empty, the measuring tool can also be
operated off of the battery charger 15 when connected to a
power supply. Switch the measuring tool off, charge the bat-
tery pack for approx. 10 min and then switch the measuring
tool on again with the battery charger connected.
To change the battery pack 7, turn the locking knob 10 to
position and pull out the battery pack 7.
Insert a new battery pack and turn the locking knob 10 to the
position.
fRemove the battery pack from the measuring tool
when not using it for longer periods. When storing for
longer periods, the rechargeable batteries can corrode
and discharge themselves.
Charge-control Indicator
When the charge-control indicator 6flashes red for the first
time, the measuring toolcan still be operated forapprox. 2 h.
When the charge-control indicator 6lights up red continuous-
ly, measurements are no longer possible. The measuring tool
switches off automatically after 1 minute.
Power Supply of the Laser Receiver
Alkali-manganese batteries are recommended for the laser
receiver.
Press thelatch 18of the battery lid outward and open the bat-
tery lid 28.
When inserting the battery, pay attention to the correct polar-
ityaccordingtotherepresentation on the inside ofthebattery
compartment.
When the battery low indicator bappears for the first time on
the display 25, the laser receiver can still be operated for ap-
prox. 3 h.
fRemove the battery from the laser receiver when not
using it for longer periods. When storing for longer peri-
ods, the battery can corrode and discharge itself.
Operation
Starting Operation of the Rotational Laser Level
fProtectthe measuring toolagainst moisture and direct
sun light.
fDo not subject the measuring tool to extreme tempera-
tures or variations in temperature. As an example, do not
leave it in vehicles for longer periods. In case of large varia-
tions in temperature, allow the measuring tool to adjust to
the ambient temperature before putting it into operation. In
case of extreme temperatures or variations in temperature,
the accuracy of the measuring tool can be impaired.
fAvoidheavy impact to or dropping down of the measur-
ing tool. After severe exterior effects to the measuring
tool, it is recommended to carry out an accuracy check
(see “Levelling Accuracy of the Rotational Laser Level”,
page 21) each time before continuing to work.
Setting Up the Measuring Tool
Position the measuring tool on a firm sur-
face or mount it to a tripod 30.
Due to the high levelling accuracy, the
measuring tool reacts sensitively to ground
vibrationsandpositionchanges.Therefore,
pay attention that the position of the meas-
uring tool is stable in order to avoid opera-
tional interruptions due to re-levelling.
Switching On and Off
fDo not direct the laser beam at persons or animals (es-
pecially not attheireye level), anddo not stareinto the
laser beam yourself (not even from a distance.) Imme-
diatelyafterswitchingon,themeasuring toolsendsoutthe
variable laser beam 4.
For switching on the measuring tool, briefly pressthe On/Off
button 2. The indicators 3, 1and 6light up briefly. The meas-
uring tool immediately starts the automatic levelling. During
the levelling, the levelling indicator 1flashes green, the laser
does not rotate and flashes.
The measuring tool is levelled in as soon as levelling indicator
1lights up green continuously and the laser beam is steady.
After the levelling is completed, the measuring tool automati-
cally starts in rotational operation.
The measuring tool exclusively operates with fixed rotational
speed in rotational operation, which is also suitable for use of
a laser receiver.
When factory set, the shock-warning function is automatically
switchedon,andtheshock-warningindicator3lightsup green.
To switch off the measuring tool, briefly press the On/Off
button 2. When the shock warning has actuated (shock-warn-
ing indicator 3flashes red), briefly press the On/Off button
once to restart the shock-warning function, and then again to
switch off the measuring tool.
fDo not leave the switched on measuring tool unattend-
ed and switch the measuring tool off after use. Other
persons could be blinded by the laser beam.
To save the batteries, the measuring tool is automatically
switched off when not within the self-levelling range for more
than 2 h or when the shock warning is actuated formore than
2 h (see“Automatic Levelling of the Rotational Laser Level”,
page 20). Reposition the measuring tool and switch it on again.
Starting Operation of the Laser Receiver
fProtect the laser receiver against moisture and direct
sun light.
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20 | English
1 619 929 J22 | (27.6.11) Bosch Power Tools
fDo not subject the laserreceiver to extreme tempera-
tures or variations in temperature. As an example, do not
leave it in vehicles for longer periods. In case of large varia-
tionsin temperature, allowthelaser receiver to adjust to the
ambient temperature before putting it into operation. In
case of extreme temperatures or variations in temperature,
the accuracy of the laser receiver can be impaired.
Position the laser receiver at least 50 cm away from the rota-
tional laser level. Position the laser receiver in such a manner
that the laser beam can reach the reception area 24.
Switching On and Off
fA loud audio signal sounds when switching on the laser
receiver. “The A-weighted sound pressure level of the au-
dio signal is up to 95 dB(A) at a distance of 0.2 m.”
fDo not hold the laser receiver close to your ear! The
loud audio signal can cause hearing defects.
To switch on the laser receiver, pressthe On/Off button 19.
Two audio signals sound and all display indicators light up
briefly.
To switch off the laser receiver, press the On/Off button 19
again.
When no button is pressed on the laser receiver for approx.
10 minutes and when no laser beam reaches the reception ar-
ea 24 for 10 minutes, the laser receiver automatically switch-
es off in order to save the battery. The switching off isindicat-
ed by an audio signal.
Selecting the Setting of the Centre Indicator
With button 20, you can specify with which accuracy the po-
sition of the laser beam is indicated as central on the recep-
tion area:
– “Fine” adjustment, (indication fon the display),
– “Medium” adjustment, (indication aon the display).
An audio signal sounds when the accuracy setting is changed.
Whenever switching on the laser receiver, the accuracy level
“medium” is set.
Direction Indicators
The bottom g, centre eand top cindicators (both on the front
andrearsideofthelaserreceiver) indicate the position of the
rotatinglaserbeaminthereception area 24.Additionally, the
position can be indicated with an audio signal (see “Audio Sig-
nal for Indication of the Laser Beam”, page 20).
Laser receiver too low: When the laser beam runs through
the top half of the reception area 24, the bottom direction in-
dicator gappears on the display.
When the audio signal is switched on, a slow-beat signal
sounds.
Move the laser receiver upward in the direction of the arrow.
When approaching the centre mark 23, only the tip of the di-
rection indicator gis indicated.
Laser receiver too high: When the laser beam runs through
the bottom half of the reception area 24, the top direction in-
dicator cappears on the display.
Whenthe audio signal is switched on, a fast-beat signal sounds.
Move the laser receiver downward in the direction of the ar-
row. When approaching the centre mark 23, only the tip of
the direction indicator cis indicated.
Laserreceiver incentre position: Whenthelaserbeam runs
through the reception area 24 at the centre mark 23, the cen-
treindicatorelightsup.When theaudiosignalisswitchedon,
a continuous signal sounds.
Audio Signal for Indication of the Laser Beam
The position of the laser beam on the reception area 24 can
be indicated via an audio signal.
Afterthelaserreceiverhasbeenswitchedon,theaudiosignal
is always switched off.
When switching on the audio signal, you can choose between
two volume levels.
Toswitchontheaudiosignalor change the volume level, push
the acoustic signal button 21until the requested volume level
is indicated. At medium volume level, the audio signal indica-
tor din the display flashes; at high volume level, the indicator
is continuously lit. When the audio signal is set to off, the indi-
cator goes out.
Automatic Levelling of the Rotational Laser Level
After switching on, the measuring tool checks the horizontal
position and automatically compensates irregularities within
the self-levelling range of approx. 8 % (5°).
When the measuring tool is inclined by more than 8 % after
switching on or after a position change, levelling in is no long-
erpossible.In this case,therotorisstopped, the laser flashes
and levelling indicator 1continuously lights up red. Reposi-
tion the measuring tool and wait for it to re-level. Without re-
positioning, the laser is automatically switched off after
2 minutes and the measuring tool after 2 hours.
When the measuring tool is levelled in, it continuously checks
the horizontal position. Automatic re-levelling takes place af-
terpositionchanges.Toavoidfaultymeasurements, the rotor
stops during the levelling process, the laser flashes and the
levelling indicator 1flashes green.
Shock-warning Function
The measuring tool has a shock-warning function; after posi-
tion changes or shock to the measuring tool, or in case of
ground vibrations, it keeps the measuring tool from levelling
in at changed heights, and thus prevents vertical errors.
When factory set, the shock-warning function is activated af-
ter switching on the measuring tool (shock-warning indicator
3lit). The shock warning is activated approx. 30s after
switching on the measuring tool or switching on the shock-
warning function.
When the levelling-accuracy range is exceeded after a position
change of the measuring tool or when heavy ground vibrations
are detected, the shock-warning function is actuated: The rota-
tion is stopped, the laser flashes, the levelling indicator 1goes
out and the shock-warning indicator 3flashes red.
When the shock-warning function has actuated, briefly press
the On/Off button 2. The shock-warning function is restarted
and the measuring tool starts the levelling. As soon as the
measuring tool is levelled in (the levelling indicator 1continu-
ously lights up green), it automatically starts in rotation oper-
ation. Now, check the height of the laser beam with a refer-
ence point and correct the height, if required.
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Bosch Power Tools 1 619 929 J22 | (27.6.11)
When, after the shock-warning function has actuated, the
function is not restarted by pressing On/Off button 2, the la-
ser is automatically switched off after 2 minutes and the
measuring tool after 2 hours.
To switch off the shock-warning function, press the On/Off
button2for3seconds. When the shock-warningfunctionhas
actuated(shock-warningindicator3flashesred),firstlypress
theOn/Offbutton briefly, and thenagainfor 3seconds. When
the shock-warning function is shut off, the shock-warning in-
dicator goes out 3.
To switch on the shock-warning function, press the On/Off
button2for 3 seconds. The shock-warning indicator 3contin-
uously lights up green, and the shock-warning function is acti-
vated after 30 seconds.
The shock-warning function setting is stored when switching
off the measuring tool.
Levelling Accuracy of the Rotational Laser Level
Influences on Accuracy
The ambient temperature has the greatest influence. Espe-
cially temperature differences occurring from the ground up-
ward can divert the laser beam.
The deviations play a role in excess of approx. 20 m measur-
ing distance and can easily reach two to four times the devia-
tion at 100 m.
Because the largest difference in temperature layers is close
to the ground, the measuring tool should always be mounted
ona tripod whenmeasuring distances exceeding 20 m.Ifpos-
sible, also set up the measuring tool in the centre of the work
area.
Accuracy Check of the Measuring Tool
Apart from exterior influences, device-specific influences
(such as heavy impact or falling down) can lead to deviations.
Therefore, check the accuracy of the measuring tool each
time before starting your work.
A free measuring distance of 20 m on a firm surface between
two walls A and B is required for the check. A reversal meas-
urement must be carried out over both axes X and Y (each
positive and negative; 4 complete measurements).
– Mountthemeasuringtoolontoatripod,orplaceitonafirm
and level surface close towall A. Switchthe measuring tool
on.
– After the levelling, mark the centre of the laser beam on
wall A (point I).
– Rotate the measuring tool by 180°, allow it to level in and
mark the centre point of the laser beam on the apposing
wall B (point II).
– Withoutturningthemeasuringtool, position it close to wall
B. Switch the measuring tool on and allow it to level in.
– Align the height of the measuring tool(using the tripod or
by propping), so that the centre of the laser beam runs ex-
actly against the previously marked point II on wall B.
– Rotate the measuring tool by 180° without changing the
height. Allow it to level in and mark the centre point of the
laser beam on wall A (point III). Take care that point III is
as vertical as possible above or below point I.
– The difference dof both marked points Iand III on wall A
amounts to the actual deviation of the measuring tool for
the measured axis.
Repeat the measuring procedure for the other three axes. For
this, turn the measuring tool prior to each measuring proce-
dure by 90°.
On the measuring section of 2 x 20 m = 40 m, the maximum
allowable deviation is:
40 m x ±0.08 mm/m = ±3.2 mm.
Consequently, the difference dbetween points Iand IIIfor
each of the four individual measurements may not exceed
3.2 mm max.
AB
20 m
AB
180°
AB
AB
180°
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22 | English
1 619 929 J22 | (27.6.11) Bosch Power Tools
Ifthemeasuringtoolshouldexceedthemaximumdeviationin
anyone of the four measuring procedures, have it checked at
a Bosch after-sales service agent.
Working Instructions for the Rotational Laser
Level
fAlways use the centre of the laser line for marking. The
width of the laser line changes with the distance.
Laser Viewing Glasses (Accessory)
The laser viewing glasses filter out the ambient light. This
makes the red light of the laser appear brighter for the eyes.
fDo not use the laser viewing glasses as safety goggles.
The laser viewing glasses are used for improved visualisa-
tionofthelaserbeam,buttheydonotprotect against laser
radiation.
fDonotusethelaser viewing glassesassunglassesor in
traffic. The laser viewing glasses do not afford complete
UV protection and reduce colour perception.
Working with the Tripod (Accessory)
The measuring tool is equipped with a 5/8" tripod mount for
horizontal operation on a tripod. Place the measuring tool via
the tripod mount 12 onto the 5/8" male thread of the tripod
and screw the locking screw of the tripod tight.
Onatripod30withameasuringscale on theelevator column,
the height difference can be adjusted directly.
Working with the Laser Target Plate (Accessory)
Using the laser target plate 37, it is possible to transmit the la-
ser height onto a wall.
With the zero field and the scale, the offset or drop to the re-
quired height can be measured and projected at another loca-
tion. This eliminates the necessity of precisely adjusting the
measuring tool to the height to be projected.
The laser target plate 37 has a reflecting coating which im-
provesthevisibilityofthelaserbeam from a largerdistance or
in case of strong sun rays. The luminosity can be recognized
only if you look to the laser target plate in parallel to the laser
beam.
Working with the Measuring Rod (Accessory)
Forcheckingirregularitiesorprojectinggradients,itis recom-
mended to use the measuring rod 31 togetherwith the laser
receiver.
A relative millimeter scale (±50 cm) is marked on the top of
the measuring rod 31. Its zero height can be preset at the bot-
tom of the elevator column. This allows for direct reading of
deviations from the specified height.
Working Instructions for the Laser Receiver
Marking
When the laser beam runs through the center of the reception
area 24, its height can be marked at the centre mark 23 right
and left on the laser receiver. The centre mark is located
45 mm away from the top edge of the laser receiver.
Aligning with the Spirit Level
The laser receiver can be aligned vertically (plumb line) with
the spirit level 26. A laser receiver attached out-of-level leads
to faulty measurements.
Attaching with the Holder (see figure A)
With the holder 35, the laser receiver can be fastened to a
construction laser measuring rod 31(accessory) as well as to
other auxiliary tools with a width of up to 65 mm.
Screw the holder 35 to the retainer opening 29 on the rear
side of the measuring tool with fastening screw 34.
Loosen the locking screw 32, slide the holder onto the con-
struction laser measuring rod 31, for example, and retighten
the locking screw 32.
The upper edge 33 of the holder is located at the same height
asthecentremark23and can be used for marking of the laser
beam.
Attaching with the Magnet (see figure B)
When a positive-lock attachment is not absolutely required,
the laser receiver can be attached to steel parts via the face
side using the magnet plate 22.
Work Examples
Checking the Depth of Building Pits (see figure C)
Position the measuring tool on a firm surface or mount it to a
tripod 30.
Working with tripod: Align the laser beam to the requested
height. Project or check the height at the target location.
Working without tripod: Determine the height difference be-
tween the laser beam and the height at the reference point
with the laser target plate 37. Project or check the measured
height difference at the target location.
When measuring over long distances, the measuring tool
should always be set up in the centre of the work surface and
on a tripod, in order to reduce interferences.
When working on unsafe ground, mount the measuring tool
onto the tripod 30. Take care that the shock-warning function
is activated, in order to avoid faulty measurements in case of
ground vibrations or shock to the measuring tool.
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Bosch Power Tools 1 619 929 J22 | (27.6.11)
Overview of Indications
Maintenance and Service
Maintenance and Cleaning
Keep the rotational laser level, battery charger and laser re-
ceiver clean at all times.
Do not immerse the rotational laser level,battery charger and
laser receiver into water or other fluids.
Wipe off debris using a moist and soft cloth. Do not use any
cleaning agents or solvents.
Particularly clean the surfaces at the outlet opening of the ro-
tational laser level regularly and pay attention for any lint.
If the rotational laser level, battery charger or laser receiver
should fail despite the care taken in manufacture and testing,
repair should be carried out by an authorised customer serv-
ices agent for Bosch power tools. Do not open the rotational
laser level, battery chargeror laser receiver yourself.
In all correspondence and spare parts orders, please always
include the 10-digit article number given on the type plate of
the rotational laser level, battery charger and laser receiver.
After-sales Service and Customer Assistance
Our after-sales service responds to your questions concern-
ing maintenance and repair of your product as well as spare
parts. Exploded views and information on spare parts can al-
so be found under:
www.bosch-pt.com
Our customer service representatives can answer your ques-
tions concerning possible applications 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: [phone]
Fax: [phone]
E-Mail: boschse[email protected]
Ireland
Origo Ltd.
Unit 23 Magna Drive
Magna Business Park
City West
Dublin 24
Tel. Service: [phone]
Fax: [phone]
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: [phone]
Fax: [phone]
Inside New Zealand:
Phone: [phone]
Fax: [phone]
Outside AU and NZ:
Phone: [phone]
www.bosch.com.au
Laser beam Rotation of the laser
green red green red
Switching on the measuring tool (1 s self-check) zzz
Levelling in or re-levelling 2x/s 2x/s
Measuring tool levelled in/ready for operation zzz
Self-levelling range exceeded 2x/s z
Shock-warning function activated z
Shock warning actuated 2x/s 2x/s
Battery voltage for ≤2 h operation 2x/s
Battery empty  z
2x/s
z

Flashing frequency (twice per second)
Continuous operation
Function stopped
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24 | English
1 619 929 J22 | (27.6.11) Bosch Power Tools
Republic of South Africa
Customer service
Hotline: [phone]
Gauteng – BSC Service Centre
35 Roper Street, New Centre
Johannesburg
Tel.: [phone]
Fax: [phone]
E-Mail: [email protected]
KZN – BSC Service Centre
Unit E, Almar Centre
143 Crompton Street
Pinetown
Tel.: [phone]
Fax: [phone]
E-Mail: [email protected]
Western Cape – BSC Service Centre
Democracy Way, Prosperity Park
Milnerton
Tel.: [phone]
Fax: [phone]
E-Mail: [email protected]
Bosch Headquarters
Midrand, Gauteng
Tel.: [phone]
Fax: [phone]
E-Mail: rbsa-hq.pt[email protected]
People’s Republic of China
China Mainland
Bosch Power Tools (China) Co., Ltd.
567, Bin Kang Road
Bin Jiang District 310052
Hangzhou, P.R.China
Service Hotline: [phone]
Fax: [phone]
E-Mail: [email protected]
www.bosch-pt.com.cn
HK and Macau Special Administrative Regions
Robert Bosch Hong Kong Co. Ltd.
21st Floor, 625 King’s Road
North Point, Hong Kong
Customer Service Hotline: [phone]
Fax: [phone]
E-Mail: [email protected]
www.bosch-pt.com.hk
Indonesia
PT. Multi Mayaka
Kawasan Industri Pulogadung
Jalan Rawa Gelam III No. 2
Jakarta 13930
Indonesia
Tel.: [phone]
Fax: [phone] 23
E-Mail: [e-mail]
www.bosch-pt.co.id
Philippines
Robert Bosch, Inc.
28th Floor Fort Legend Towers,
3rd Avenue corner 31st Street,
Fort Bonifacio Global City,
1634 Taguig City, Philippines
Tel.: [phone]
Fax: [phone]
[email protected]
www.bosch-pt.com.ph
Bosch Service Center:
9725-27 Kamagong Street
San Antonio Village
Makati City, Philippines
Tel.: [phone]
Fax: [phone]
[email protected]
Malaysia
Robert Bosch (S.E.A.) Pte. Ltd.
No. 8A, Jalan 13/6
G.P.O. Box 10818
46200 Petaling Jaya
Selangor, Malaysia
Tel.: [phone]
Fax: [phone]
[email protected]
Toll-Free: 1800 880 188
www.bosch-pt.com.my
Thailand
Robert Bosch Ltd.
Liberty Square Building
No. 287, 11 Floor
Silom Road, Bangrak
Bangkok 10500
Tel.: [phone] – 18 88 (10 lines)
Fax: [phone]
Robert Bosch Ltd., P. O. Box 2054
Bangkok 10501, Thailand
Bosch Service – Training Centre
2869-2869/1 Soi Ban Kluay
Rama IV Road (near old Paknam Railway)
Prakanong District
10110 Bangkok
Thailand
Tel.: [phone] – 4
Fax: [phone]
Fax: [phone]
Singapore
Robert Bosch (SEA) Pte. Ltd.
11 Bishan Street 21
Singapore 573943
Tel.: [phone]
Fax: [phone]
[e-mail]
Toll-Free: 1800 333 8333
www.bosch-pt.com.sg
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