BTI PROFILINE BM 550 E Manual Original página 25

Assembly
Auxiliary Handle (see figure A)
Operate your machine only with the auxiliary
handle 5.
The auxiliary handle 5 can be set to any position for a
secure and low-fatigue working posture.
Turn the bottom part of the auxiliary handle 5 in coun-
terclockwise direction and swivel the auxiliary handle
5 to the desired position. Then retighten the bottom
part of the auxiliary handle 5 by turning in clockwise
direction.
Changing the Tool (see figure B)
Before any work on the machine itself, pull
the mains plug.
Wear protective gloves when changing the
tool. The drill chuck can become very hot during
longer work periods.
Open the key type drill chuck 1 by turning until the tool
can be inserted. Insert the tool.
Insert the chuck key 6 into the corresponding holes of
the key type drill chuck 1 and clamp the tool uniformly.
Screwdriver Tools (see figure C)
When working with screwdriver bits 8, a universal bit
holder 9 should always be used. Use only screwdriver
bits that fit the screw head.
Replacing the Drill Chuck
Before any work on the machine itself, pull
the mains plug.
Removing the Securing Screw (see figure D)
The key type drill chuck 1 is secured with a securing
screw 10 against unintentional loosening. Open the
drill chuck 1 completely and unscrew the securing
screw 10 by turning in clockwise direction. Please
observe that the securing screw has a left-hand
thread.
If the securing screw 10 is seated tightly, apply a
screwdriver to the screw head and loosen the secur-
ing screw by giving a blow onto the handle of the
screwdriver.
2 609 932 736 • 13.1.10
Removing the Drill Chuck (see figure E)
To remove the key type drill chuck 1, clamp an Allen
key 11 into the key type drill chuck 1. Place the
machine onto a stable support, e. g. a workbench.
Hold the machine tightly and loosen the key type drill
chuck 1 by turning the Allen key 11 in anticlockwise
direction. A tightly seated key type drill chuck is loos-
ened by applying a light blow onto the long end of the
Allen key 11. Remove the Allen key from the key type
drill chuck and fully unscrew the drill chuck.
Mounting the Drill Chuck (see figure F)
The drill type key chuck is mounted in reverse order.
The drill chuck must be tightened with a
tightening torque of approx. 10–15 Nm.
Screw the securing screw 10 in anti-clockwise direc-
tion into the opened keyless chuck. Always use a new
securing screw, as the threads are covered with a
thread-locking compound that loses its effect after
multiple usage.
Dust/Chip Extraction
Dusts from materials such as lead-containing coat-
ings, some wood types, minerals and metal can be
harmful to one's health. Touching or breathing-in
the dusts can cause allergic reactions and/or lead
to respiratory infections of the user or bystanders.
Certain dusts, such as oak or beech dust, are con-
sidered as carcinogenic, especially in connection
with wood-treatment additives (chromate, wood
preservative). Materials containing asbestos may
only be worked by specialists.
– Use dust extraction whenever possible.
– Provide for good ventilation of the working
place.
– It is recommended to wear a P2 filter-class res-
pirator.
Observe the relevant regulations in your country
for the materials to be worked.
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