Operation; Maintenance - Makita HR3540C Bedienungsanleitung

To remove the bit, pull the chuck cover down all the way
and pull the bit out.
Fig.11
Bit angle (when chipping, scaling or
demolishing)
Fig.12
The bit can be secured at 24 different angles. To change
the bit angle, depress the lock button and rotate the
change lever so that the pointer points to the
Turn the bit to the desired angle.
Depress the lock button and rotate the change lever so
that the pointer points to the
that the bit is securely held in place by turning it slightly.
Depth gauge
Fig.13
The depth gauge is convenient for drilling holes of
uniform depth. Loosen the clamp screw and adjust the
depth gauge to the desired depth. After adjusting,
tighten the clamp screw firmly.
NOTE:
The depth gauge cannot be used at the position
•
where the depth gauge strikes against the gear
housing/motor housing.

OPERATION

Hammer drilling operation
Fig.14
CAUTION:
Always use the side grip (auxiliary handle) and
•
firmly hold the tool by both side grip and switch
handle during operations.
Set the change lever to the
Position the bit at the desired location for the hole, then
pull the switch trigger. Do not force the tool. Light
pressure gives best results. Keep the tool in position and
prevent it from slipping away from the hole.
Do not apply more pressure when the hole becomes
clogged with chips or particles. Instead, run the tool at
an idle, then remove the bit partially from the hole. By
repeating this several times, the hole will be cleaned out
and normal drilling may be resumed.
CAUTION:
When the bit begins to break through concrete or if
•
the bit strikes reinforcing rods embedded in
concrete, the tool may react dangerously. Maintain
good balance and safe footing while holding the
tool firmly with both hands to prevent dangerous
reaction.
Blow-out bulb (optional accessory)
Fig.15
After drilling the hole, use the blow-out bulb to clean the
dust out of the hole.
symbol.
symbol. Then make sure
symbol.
Chipping/Scaling/Demolition
Fig.16
Set the change lever to the
Hold the tool firmly with both hands. Turn the tool on and
apply slight pressure on the tool so that the tool will not
bounce around, uncontrolled. Pressing very hard on the
tool will not increase the efficiency.
Drilling in wood or metal
Fig.17
Use the optional keyless drill chuck assembly. When
installing it, refer to "Installing or removing the bit"
described on the previous page.
Set the change lever so that the pointer points to
the symbol.
Hold the ring and turn the sleeve counterclockwise to
open the chuck jaws. Place the bit in the chuck as far as
it will go. Hold the ring firmly and turn the sleeve
clockwise to tighten the chuck. To remove the bit, hold
the ring and turn the sleeve counterclockwise.
CAUTION:
Never use "rotation with hammering" when the
•
quick change drill chuck is installed on the tool.
The quick change drill chuck may be damaged.
Pressing excessively on the tool will not speed up
•
the drilling. In fact, this excessive pressure will only
serve to damage the tip of your bit, decrease the
tool performance and shorten the service life of the
tool.
There is a tremendous twisting force exerted on
•
the tool/bit at the time of hole breakthrough. Hold
the tool firmly and exert care when the bit begins to
break through the workpiece.
Always secure small workpieces in a vise or similar
•
hold-down device.
Diamond core drilling
When performing diamond core drilling operations,
always set the change lever to the
"rotation only" action.
CAUTION:
If performing diamond core drilling operations
•
using "rotation with hammering" action, the
diamond core bit may be damaged.

MAINTENANCE

CAUTION:
Always be sure that the tool is switched off and
•
unplugged before attempting to perform inspection
or maintenance.
Lubrication
CAUTION:
This servicing should be performed by Makita
•
Authorized or Factory Service Centers only.
7
symbol.
position to use