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3.3
Machine characteristics
The machines are equipped with specially
developed electronics with soft start. It monitors
the speed and, with the green / red indicator
lights (BDB 835: Item 6 and 7, see Figure
BDB 8325: Item 6 and 7, see Figure
achieve favourable work progress and therefore
working conditions that do not damage the tools.
Visual display
Green:
Speed for optimum drilling performance
Red:
Speed too low – stopping
If this warning signal is ignored, i.e. the feed is not
reduced, the electronics switch off on overload.
After the wet diamond core drill bit has stopped,
remove it from the drill hole. The machine can be
immediately restarted.
8
The drive unit is equipped with a personal
protection switch (PRCD - personal residual current
device).
3.4
Machine parts and controls
Wet drilling system BDB 835
1
1
Water connection
2
Output shaft
3
Personal protection switch PRCD
4
Gear change knob (-3 gear)
5
Drive unit BDB 835
6
Green LED
7
Red LED
8
ON/OFF switch
Wet drilling system BDB 8325
2
1
Water connection
2
Output shaft
3
Personal protection switch PRCD
4
Gear change knob (-3 gear)
5
Drive unit BDB 8325
6
Green LED
7
Red LED
8
ON/OFF switch
| 40 |
3
1
2
3
4
1
and
5
2
) it helps to
6
7
8
9
10 Adjustable foot (4x)
11 Cheese head screws, bottom tilt adjustment
12 Bolt-on plate
13 Cheese head screw (4x)
14 Circlip
15 Spindle head
16 Hexagon bolt
17 Clamping lever
18 Drill stand column
3.5
The BDB 835 and BDB 8325 wet diamond drilling
systems are only designed for use with a suitable
drill stand.
Read and follow the separate instruction manu-
al for the corresponding drill stand.
The drive units are not suitable for overhead drilling
or for hand-held operation.
It can also be run with a water suction kit.
The wet diamond drilling systems, in conjunction
with wet diamond core drill bits and a water supply,
are intended for wet drilling into mineral materials
such as concrete, reinforced concrete or masonry.
Do not drill in the following materials: wood, metal
and glass, etc.
Observe the relevant regulations in your
country for the materials to be machined and
extraction.
Drill stand BST 250
Sliding element
Nut, top tilt adjustment
Pinion shaft
Tube lock with clip
Feed crank handle
Tapered shaft
Spirit level
Drill stand plate
Nut, bottom tilt adjustment
Intended use
NOTE
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