Before Starting Work; Operation And Control; Tool Bit Assembly; Inserting A Core Drill Bit Shank - Baier BDB 823A Original Bedienungsanleitung

EN
4

Before Starting Work

To ensure safe working with the dry diamond drill,
the following points must be observed before each
use:
•
Read through all safety instructions and
warnings in this instruction manual.
•
Wear protective clothing such as hard hat, face
protection or safety goggles, safety gloves and if
necessary an apron.
•
The voltage on the rating plate must be identical
with the mains voltage.
•
Before each use, check the machine,
connection cable and plug, tight fit of the core
drill bit shank (with or without extraction dome)
and the dry diamond core drill bit.
•
The additional handle must be tightly screwed
onto the machine.
•
Only use the dry diamond core drill bits
recommended by Maschinenfabrik OTTO
BAIER GmbH for the respective use (see
selection table with recommended uses on
page 35).
NOTE
The dry diamond core drill bit can be damaged
irreparably by overheating or jamming in the core
drill hole.
If harmful dust is produced during the work, a
suitable dust extractor must be connected to
the dry diamond drill (e.g. BAIER special dust
extractor).
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5

Operation and Control

5.1

Tool Bit Assembly

5.1.1 Inserting a core drill bit shank

Before inserting the dry diamond core drill bits,
either
•
2 a core drill bit shank with resettable centring
drill bit or
•
3 a core drill bit shank with extraction dome
and resettable centring drill bit must be screwed
onto the dry diamond drill.
DANGER
Risk of injury due to electric shock.
Î Disconnect the mains plug before carrying out
any work on the dry diamond drill.
CAUTION
Risk of injury due to hot drill bits.
Î The drill bits fitted can get hot if used for a
lengthy time. Wear safety gloves when chang-
ing the drill bits or allow the drill bits to cool
first.
Inserting a core drill bit shank without
extraction dome
2 Screw the core drill bit shank (4) with resettable
centring drill bit (5) on the output shaft (1). Hold
the output shaft (1) in position with an open-ended
spanner size SW22 and tighten the core drill bit
shank (4) by turning it clockwise with a second
open-ended spanner, size SW24.
Inserting a core drill bit shank with
extraction dome
3 If the core drill bit shank (4) with extraction
dome (3) and with resettable centring drill bit (5) is
used, the extraction dome (3) must also be pushed
towards the machine, so that the second open-
ended spanner size SW24 can grip the core drill bit
shank (4); tighten by turning clockwise.