Assembly And Adjustment - Berner BHD-5 Manual De Uso

E N G L I S H

Assembly and adjustment

Prior to assembly and adjustment
always unplug the tool.
Setting the electronic speed and impact
control dial (fig. B1 & B2)
• Turn the dial (2) to the desired level. The higher
the number, the greater the speed and impact
energy. With dial settings from „1" (low) to „7"
(full power) the tool is extremely versatile and
adaptable for many different applications.
(BHD-5 from "1" to "5")
The required setting is a matter of experience.
E.g. when using smaller diameter bits or when
drilling into ceramic or brittle materials, set the
dial to position „1" (low).
Selecting the operating mode (fig. D1 & D2 )
Your Rotary Hammer can be used in two operating
modes:
Hammer drilling:
rotating and impacting - for all concrete
and masonry drilling operations.
Hammering only with spindle lock:
impacting only - for light chipping,
chiselling and demolition applications.
®
SDS-max
different positions (also refer to fig.
D2):
• Turn the option lever (4) so that it points
upwards.
• Turn the cutter to the desired position.
• Rotate the mode selector (4) until it points to
the -symbol.
• In this mode the Rotary Hammer can also be
used as a lever to free a jammed drill bit.
• Turn the cutter till it snaps in its position.
Inserting and removing SDS-max
accessories (fig. C1 & C2)
These models use SDS-max
(refer to the inset in fig. C2 for a cross-section of
an SDS-max ® bit shank).
• Unplug the tool.
• Insert the bit shank into the tool holder locking
sleeve (6) and turn the bit slightly until the
18
simultaneous
chisels can be locked into 8
®
®
drill bits and chisels
sleeve snaps in position.
• 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 (6) and pull the bit out of the tool holder.
Assembling and fitting the side handle (fig.
E1-E4)
The side handle (8) can be mounted in front or in
rear position on either side of the Rotary Hammer to
suit both RH- and LH-users.
Always operate the Rotary Hammer with
the side handle properly assembled.
Mounting in front position (fig. E1 & E2)
• Snap the steel ring (16) over the collar (7)
behind the tool holder (6). Squeeze both ends
together, mount the bush (14) and insert the
pin (15).
• Place the side handle clamp (13) and screw
on the clamp wheel (9). Do not tighten.
• Screw the side handle (8) into the clamp wheel
and tighten it.
• Rotate the side handle mounting assembly to the
desired position. For drilling horizontally with a
heavy drill bit, place the side handle at an angle
of approx. 20° (refer to fig. E2) for optimum
control.
• Lock the side handle mounting assembly in place
by tightening the clamp wheel (9).
Mounting in rear position (fig. E3 & E4)
The rear position is particularly useful when drilling
overhead or down into a floor. Refer to fig. D4.
• Unscrew the side handle (8) and remove it from
the front position. Leave the side handle
mounting assembly in front position so that the
depth adjustment rod can still be used.
• Screw the side handle directly into one of the rear
side handle positions (10) on either side of the tool.
Setting the drilling depth (fig. F)
• Insert the required drill bit.
• Loosen the clamp nut (17) and fit the depth
adjustment rod (11) through the hole in the
side handle clamp.