Working Advice; Maintenance And Service; Accessories; After-Sales Service And Application Service - Bosch DBH 740 R Notice Originale

OBJ_BUCH-2092-002.book Page 17 Thursday, February 23, 2017 11:46 AM
Starting and Stopping
To save energy, only switch the pneumatic tool on when you
are using it.
– To switch on the pneumatic tool, press the On/Off switch
6 and keep it pressed during the working procedure.
– To switch off the pneumatic tool, release the On/Off
switch 6.

Working Advice

Sudden loads cause a sharp drop in speed or a complete stop,
yet do not cause damage to the motor.
Adjusting the Depth Stop (see figure G)
The required drilling depth X can be set with the depth stop
11.
– Loosen the wing bolt 4 on the auxiliary handle 10.
– Pull out the depth stop until the distance between the tip of
the drill bit and the tip of the depth stop correspond with
the desired drilling depth X.
– Tighten the wing bolt again.

Maintenance and Service

Maintenance and Cleaning
 Have maintenance and repair work carried out only
through qualified persons. This will ensure that the safe-
ty of the pneumatic tool is maintained.
An authorized Bosch after-sales service agent will carry out
this work quickly and reliably.
Regular Cleaning
– Clean the sieve at the air intake of the pneumatic tool regu-
larly. For this, unscrew the hose fitting 9 and remove any
dust and debris from the sieve. Afterwards, retighten the
hose fitting again.
– Water and debris particles in the compressed air cause
rust and lead to wear of plates, valves etc. To prevent this,
fill several drops of engine oil into the air intake 7. Recon-
nect the pneumatic tool to the air supply (see "Connecting
the Air Supply", page 15) and run it for 5 –10 seconds,
while catching/picking up the escaping oil with a cloth. Al-
ways carry out this procedure when not using the pneu-
matic tool for a longer period of time.
Scheduled Maintenance
– Clean the gearbox after the first 150 running hours using a
mild solvent. Follow the solvent manufacturers directions
for use and disposal. Lubricate the gearbox using Bosch
gearbox lube. Repeat the lubrication procedure every
300 hours after the initial gearbox service.
Special gearbox grease (225 ml)
Article number 3 605 430 009
– The motor plates should be checked regularly by special-
ised personnel and replaced, if required.
Bosch Power Tools
Lubrication of Pneumatic Tools that do not belong to the
CLEAN Product Line
For all Bosch pneumatic tools that do not belong to the CLEAN
product line (these have a special type of compressed-air mo-
tor that functions with oil-free compressed air), oil mist
should be added continuously to the flowing-through com-
pressed air. The compressed-air oiler required for this is in-
cluded in the compressed-air service unit on the line side of
the pneumatic tool (for more details, please refer to the com-
pressor manufacturer).
For direct lubrication of the pneumatic tool or admixtures to
the service unit, use SAE 10 or SAE 20 engine oil.

Accessories

For more information on the complete quality accessories
program, please refer to the Internet under
www.bosch-pt.com or contact your specialist shop.

After-sales Service and Application Service

In all correspondence and spare parts orders, please always
include the 10-digit article number given on the type plate of
the pneumatic tool.
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
Bosch's application service team will gladly answer questions
concerning our products and their accessories.
Great Britain
Robert Bosch Ltd. (B.S.C.)
P.O. Box 98
Broadwater Park
North Orbital Road
Denham
Uxbridge
UB 9 5HJ
At www.bosch-pt.co.uk you can order spare parts or arrange
the collection of a product in need of servicing or repair.
Tel. Service: (0844) 7360109
E-Mail: boschservicecentre@bosch.com
Ireland
Origo Ltd.
Unit 23 Magna Drive
Magna Business Park
City West
Dublin 24
Tel. Service: (01) 4666700
Fax: (01) 4666888
1 609 92A 33X | (23.2.17)
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