English–12
3 609 929 977 • (04.10) T
6 MAINTENANCE AND SERVICE
Maintenance
Disconnect the air hose from the air supply be-
fore making any adjustments, changing acces-
sories, or storing the tool.
Such preventive safety
measures reduce the risk of starting the tool acciden-
tally.
Routinely measure the no-load speed of the tool
spindle. If the measured value lies more than
10 % above the value given in the table
Product
Specifications
, the tool should be inspected by
an authorized Bosch customer service center.
If
the no-load speed is too high, the accessory can
break; if the speed is too low, the work output is dimin-
ished.
Should the tool fail in spite of careful manufacturing
and testing procedures, have the repairs performed by
an authorized customer service location for Bosch
power
tools.
For inquiries and spare parts ordering, please include
the 10-place article number on the nameplate of the
tool.
Clean the screen of the air inlet regularly. For this pur-
pose, unscrew the hose nipple
1
and remove dust and
dirt particles from the screen. Then firmly remount the
hose nipple.
To prevent damage to the internal
valve components of the tool, you
should use an open-end wrench
(22 mm) to apply a counterforce
at the protruding connector of the
air inlet
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when screwing/un-
screwing the hose nipple
1
.
Water and dirt particles in the com-
pressed air cause rust formation and
lead to clogging of vanes, valves, etc.
To prevent this, a few drops of motor oil
should be placed in the air inlet
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. Re-
connect the tool to the air supply and
let the tool run for 5–10 s while catching the oil that
runs out with a rag.
If the air tool is not used for a
longer time, this procedure should always be
performed.
All Bosch air tools that do not belong to the CLEAN se-
ries (a special kind of air motor that functions with oil-
free compressed air), require a small amount of lubri-
cating oil be mixed into the flow of compressed air.
The compressed air oiler required for this is located at
the compressed air maintenance unit connected to
the tool (you may obtain further details on this from a
compressor manufacturer).
You should use SAE 10 or SAE 20 motor oil for direct
lubrication of the tool or for admixture at the mainte-
nance unit (compressor).
After the first 150 hours of operation, the gearbox
should be cleaned and lubricated by an authorized
service center. This process should be then per-
formed after every 300 hours of operation. After each
cleaning, it should be lubricated with special gearbox
grease.
Special gearbox grease 225 ml . . . . . 3 605 430 009
The motor vanes should be routinely inspected by
trained personnel and, if necessary, replaced.
Have maintenance and repair work performed
only by qualified specialists.
In this manner, it can
be ensured that the safety of the tool is maintained.
Any Bosch customer service center can perform this
work quickly and reliably.
Dispose of lubricants and cleaning agents in an
environment-friendly manner. Comply with the
legal regulations.
Accessories
All tools can be equipped with abrasive, cut-off, and
wire brushing wheels as well as with rubber backing
pad with sanding disc.
Information about the complete quality accessory pro-
gram can be found on the Internet at
www.bosch-pt.com and
www.boschproductiontools.com or at your dealer.
Service
Robert Bosch GmbH is responsible for the delivery of
the tool in accordance with the sales contract within
the framework of the legal/country-specific regula-
tions. For claims with respect to the tool, please con-
tact the following location:
Fax . . . . . . . . . . . . . . . . . . . . . +49 (711) 7 58 24 36
www.boschproductiontools.com
Disposal
Tool, accessories, and packaging should be sorted for
environment-friendly recycling.
The plastic components are labeled for categorized
recycling.
If your tool can no longer be used, de-
liver it to a recycling center or return it
to a dealer – for example, an authorized
Bosch service center.
Specifications subject to change without notice
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