Rotating The Machine Head; Dust/Chip Extraction - Bosch GWS 9-115 Professional Manual Original

OBJ_BUCH-3250-002.book Page 33 Friday, January 26, 2018 12:01 PM
Protection Guard for Cutting
 For cutting with bonded abrasives, always use the pro-
tection guard for cutting 13.
 Provide for sufficient dust extraction when cutting
stone.
The protection guard for cutting 13 is mounted in the same
manner as the protection guard for grinding 8.
Auxiliary Handle
 Operate your machine only with the auxiliary handle 4.
Screw the auxiliary handle 4 on the right or left of the machine
head depending on the working method.
Mounting the Grinding Tools
 Before any work on the machine itself, pull the mains
plug.
 Do not touch grinding and cutting discs before they
have cooled down. The discs can become very hot while
working.
Clean the grinder spindle 6 and all parts to be mounted.
For clamping and loosening the grinding tools, lock the grind-
er spindle with the spindle lock button 1.
 Actuate the spindle lock button only when the grinder
spindle is at a standstill. Otherwise, the machine may be-
come damaged.
Grinding/Cutting Disc
Pay attention to the dimensions of the grinding tools. The
mounting hole diameter must fit the mounting flange without
play. Do not use reducers or adapters.
When using diamond cutting discs, pay attention that the di-
rection-of-rotation arrow on the diamond cutting disc and the
direction of rotation of the machine (see direction-of-rotation
arrow on the machine head) agree.
See graphics page for the mounting sequence.
To fasten the grinding/cutting disc, screw on the clamping nut
11 and tighten it with the combination spanner 5, (see sec-
tion "Quick-clamping Nut").
 After mounting the grinding tool and before switching
on, check that the grinding tool is correctly mounted
and that it can turn freely. Make sure that the grinding
tool does not graze against the protection guard or oth-
er parts.
Mounting flange for grinding spindle
M 14: A plastic part (O-ring) is fitted
around the centring collar of mounting
flange 9. If the O-ring is missing or
damaged, the mounting flange 9 must
be replaced before resuming opera-
tion.
Rubber Sanding Plate
See graphics page for the mounting sequence.
Screw on round nut 17 and tighten it with the combination
spanner 5.
Bosch Power Tools
Cup Brush/Disc Brush
See graphics page for the mounting sequence.
The cup brush/disc brush must be able to be screwed onto
the grinder spindle until it rests firmly against the grinder
spindle flange at the end of the grinder spindle threads. Tight-
en the cup brush/disc brush with an open-end spanner.
Approved Grinding Tools
All grinding tools mentioned in these operating instructions
can be used.
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The permissible speed [min ] or the circumferential speed
[m/s] of the grinding tools used must at least match the values
given in the table.
Therefore, observe the permissible rotational/circumferen-
tial speed on the label of the grinding tool.
max.
[mm] [mm]
D b
115 7 22.2
125 7 22.2
D
115 –
125 –
d
75 30 M 14
b
75 30 5/8"
D

Rotating the Machine Head

 Before any work on the machine itself, pull the mains
plug.
without removing it from the housing, to the new position.
Screw in and tighten the four screws again.

Dust/Chip Extraction

 Dust from materials such as lead-containing coatings,
some wood types, minerals and metal can be harmful to
one's health. Touching or breathing-in the dust can cause
allergic reactions and/or lead to respiratory infections of
the user or bystanders.
English | 33
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d [min ] [m/s]
11000 80
11000 80
– 11000 80
– 11000 80
11000 45
11000 45
The machine head can be
rotated with respect to
the machine housing in
90° steps. In this man-
ner, the On/Off switch
can be brought into a
more convenient posi-
tion for special working
situations, e.g. for left-
handed persons.
Completely unscrew the
four screws. Rotate the
machine head carefully,
1 609 92A 3FZ | (26.1.18)