If The O-Ring Is Missing Or Damaged - Bosch 8-115 Z Original Instructions Manual

OBJ_BUCH-124-007.book Page 20 Friday, October 14, 2016 8:36 AM
20 | English
A plastic part (O-ring) is fitted around
the centring collar of mounting flange 8.

If the O-ring is missing or damaged,

the mounting flange 8 must be replaced
before resuming operation.
Flap Disc
 For operations with the flap disc, always mount the
hand guard 16.
Rubber Sanding Plate
 For operations with the rubber sanding plate 17, al-
ways mount the hand guard 16.
See graphics page for the mounting sequence.
Screw on the round nut 19 and tighten with the two-pin span-
ner.
Cup Brush/Disc Brush
 For operations with the cup brush/wheel brush, always
mount the hand guard 16.
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.
Quick-clamping Nut
For convenient changing of grinding tools without the use of
additional tools, you can use the quick-clamping nut 11 in-
stead of the clamping nut 10.
 The quick-clamping nut 11 may be used only for grind-
ing or cutting discs.
Use only a flawless, undamaged quick-clamping nut 11.
When screwing on, pay attention that the side of the
quick-clamping nut 11 with printing does not face the
grinding disc; the arrow must point to the index mark 24.
Lock the grinder spindle with
the spindle lock button 2. To
24
tighten the quick-clamping
nut, firmly turn the grinding
disc in clockwise direction.
1 609 92A 3DM | (14.10.16)
A properly attached, undam-
aged quick-clamping nut can
be loosened by hand when
turning the knurled ring in an-
ticlockwise direction.
Never loosen a tight quick-
clamping nut with pliers. Al-
ways use the two-pin span-
ner. Insert the two-pin span-
ner as shown in the
illustration.
Approved Grinding Tools
All grinding tools mentioned in these operating instructions
can be used.
-1
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 6 22.2
125 6 22.2
D
115 –
125 –
d
75 30 M 14
b
D
Rotating the Machine Head
 Before any work on the machine itself, pull the mains
plug.
-1
d [min ] [m/s]
11000 80
11000 80
– 11000 80
– 11000 80
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 cut-
ting operations using the
cutting guide with dust
extraction protection
guard 21 or for left-hand-
ed persons.
Bosch Power Tools