Berner BHD-3 Instrucciones De Manejo/Instrucciones De Seguridad página 17

We recommend to use professional accessories
only.
• Clean and grease the bit shank.
• Insert the bit shank into the tool holder (5).
• Push the bit down and turn it slightly until it fits
into the slots.
• Pull on the bit to check if it is properly locked.
The hammering function requires the bit to be
able to move axially several centimetres when
locked in the tool holder.
• To remove a bit pull back the tool holder
locking sleeve (11) and pull out the bit.
Fitting the side handle (fig. D)
The side handle (8) can be fitted to suit both
RH- and LH-users.
Always use the tool with the side
handle properly assembled.
• Loosen the side handle.
• For RH-users, slide the side handle clamp over
the collar behind the tool holder, handle at the
left.
• For LH-users, slide the side handle clamp over
the collar behind the tool holder, handle at the
right.
• Rotate the side handle to the desired position
and tighten the handle.
Setting the drilling depth (fig. E)
• Insert the required drill bit as described above.
• Press the depth stop clamp (9) and keep it
depressed.
• Fit the depth adjustment rod (7) through the
hole in the depth stop clamp.
• Adjust the drilling depth as shown.
• Release the depth stop clamp.
Forward/reverse slider (fig. A)
• Push the forward/reverse slider (2) to the LH-side
for forward (RH) rotation. See arrows on tool.
• Push the forward/reverse slider (2) to the RH-
side for reverse (LH) rotation.
Always wait until the motor has come
to a complete standstill before
changing the direction of rotation.
All manuals and user guides at all-guides.com
Fitting the chuck adapter & chuck
• Screw the chuck onto the threaded end of the
• Insert the connected chuck and adapter in the
• To remove the chuck, proceed as for removing
Replacing the dust cover (fig. B)
The dust cover (6) prevents dust ingress into the
mechanism. Replace a worn dust cover
immediately.
• Pull back the tool holder locking sleeve (11)
• Fit the new dust cover.
• Release the tool holder locking sleeve.
Instructions for use
Be aware of the location of pipework and wiring.
Apply only a gentle pressure to the tool (approx.
5 kg). Excessive force does not speed up drilling
but decreases tool performance and may shorten
tool life. Do not drill or drive too deep to prevent
damage to the dust cover.
Switching on and off (fig. A)
• To run the tool, press the variable speed switch
• To stop the tool, release the switch.
Hammer drilling (fig. A)
Drilling with a solid bit
• Set the mode selector switch (3) to the
• Insert the appropriate drill bit. For best results
• Adjust the side handle (8) as required.
• If necessary, set the drilling depth.
• Mark the spot where the hole is to be drilled.
chuck adapter.
tool as though it were a standard SDS-plus
®
a standard SDS-plus bit.
Never use standard chucks in the
hammer drilling mode.
and pull the dust cover (6) off.
Always observe the safety instructions
and applicable regulations.
(1). The pressure exerted on the variable speed
switch determines the tool speed.
«hammer drilling» position.
use high quality carbide-tipped bits.
E N G L I S H
®
bit.
17