Bosch GNF 35 CA Manual Original página 20

OBJ_BUCH-1725-002.book Page 20 Friday, August 26, 2016 3:12 PM
20 | English
– Place the power tool in such a manner on both rear chaser
rollers 3, that the diamond cutting discs do not touch the
workpiece.
– Switch the machine on and slowly plunge into the material.
– Guide the machine with both handles, applying moderate
feed, suited to the material being worked.
– The machine must always work in an up-grinding motion.
Otherwise, the danger exists of it being pushed uncon-
trolled out of the cut.
– The machine can be both pushed or pulled in the cutting di-
rection. Vertical slots can easily be cut by pulling the ma-
chine from top to bottom.
– After finishing the working procedure, swivel the diamond
cutting discs out of the slot with the machine still running.
– Switch the power tool off.
Do not brake coasting diamond cutting discs by applying side-
ward pressure.
 Never set down a coasting machine on the chaser roll-
ers 3, but always aside, so that the diamond cutting
discs can rotate freely and do not face toward your
body.
 Diamond cutting discs become very hot during opera-
tion; do not touch them until they have cooled down.
21
Remove the remaining fin of the material with the break-out
tool 21.
Curved cuts are not possible, as the diamond cutting discs
could jam in the material.
When cutting through plate materials, ensure that the materi-
als are firmly backed on a surface or supported.
When breaking through walls, e. g. with a rotary hammer,
most of the chipping-off of the surface material can be avoid-
ed by first cutting in a slot with maximum cutting depth.
For cutting especially hard material, e. g., concrete with high
pebble content, the diamond cutting disc can overheat and
become damaged as a result. This is clearly indicated by cir-
cular sparking, rotating with the diamond cutting disc.
In this case, interrupt the cutting process and allow the dia-
mond cutting disc to cool by running the machine for a short
time at maximum speed with no load.
Noticeably decreasing work progress and circular sparking
are indications of a diamond cutting disc that has become
dull. Briefly cutting into abrasive material (e. g. lime-sand
brick) can resharpen the disc again.
1 609 92A 2PN | (26.8.16)
Information on Structures
Slots in structural walls are subject to the Standard DIN 1053
Part 1, or country-specific regulations.
These regulations are to be observed under all circumstanc-
es. Before beginning work, consult the responsible structural
engineer, architect or the construction supervisor.
The permitted slot depth and width depends on the slot
length, wall thickness and the building material used.
Maintenance and Service
Maintenance and Cleaning
 Before any work on the machine itself, pull the mains
plug.
 For safe and proper working, always keep the machine
and ventilation slots clean.
After finishing work, dismount the clamping fixtures and clean
all clamping parts as well as the protective cover.
If the replacement of the supply cord is necessary, this has to
be done by Bosch or an authorized Bosch service agent in or-
der to avoid a safety hazard.
Spare Parts
Mounting flange 16 . . . . . . . . . . . . . . . . . . . 3 609 202 039
Spacer discs, 4 mm 18 . . . . . . . . . . . . . . . 3 609 202 041
Spacer discs, 6 mm 18 . . . . . . . . . . . . . . . 3 609 202 042
Clamping nut 19 . . . . . . . . . . . . . . . . . . . . . 3 609 202 040
Break-out tool 21 . . . . . . . . . . . . . . . . . . . . 3 607 959 005
After-sales Service and Application Service
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.
In all correspondence and spare parts order, please always in-
clude the 10-digit article number given on the type plate of
the machine.
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
Bosch Power Tools