Norton NBM 131 Manual Del Usuario página 6

Due to continuous product development and technical
improvements, technical information may be changed
without prior notice.
MAIN PARTS
1. Spade grip / Pistol grip
2. Switch
3. Water level
4. Overload indication
5. Auxiliary handle
6. Carbon brushes
7. Gear switch
8. Drill connection
9. Collar
10. Spanner insert
11. Water connection (wet drilling)
12. Dust extraction (dry drilling)
13. Residual-current device (PRCD)
INTENDED USE
This is an insulated diamond core drilling machine
for WET use in combination with diamond core
drilling for drilling holes in stony materials and concrete.
The drilling machine can be used manually as well as in
combination with a drill platform. This machine is suited for
right as well as left handed personel.
This is a double-isolated diamond core drill machine
for DRY use in combination with diamond core drills
for drilling holes in brick/ block and masonry. The machine
may not be used for wet drilling and is not suitable for use
with diamond core drills which must be cooled by water.
POWER SUPPLY
The drill machine may only be connected to the voltage
which is stated on the type illustration and only works with
1-phase. The machine is insulated according to European
Guidelines and consequently may only be used via a trip
switch (PRCD) with an under voltage safety level of < 10
mA on an earthed electrical mains.
SAFETY INSTRUCTIONS
• Always use the extra side handle and always hold the drill
machine with both hands
• Always use the machine under supervision. Keep hands
away from rotating parts
• Double-check that the diamond drill is correctly
assembled
• Before use, check that all screws are fi rmly in place.
Because of vibrations caused during drilling, screws can
work loose and cause damage or injury
• After use, do not touch metal parts of the drill machine
and the diamond drill; this could be hot and cause burns.
• Ensure that the drill machine does not start rotating by
accident; always disengage the switch when disconnecting
from the power source, or if there is an interruption to the
power supply
NBM201
Attention: Because of the high torque in the lowest gear,
we strongly advise you not to drill by hand in the lowest
gear. If the diamond drill suddenly gets stuck there is a
high risk that the user will get hurt. Use lowest gear only in
combination with a drill rig.
6
ENGLISH – ORIGINAL INSTRUCTIONS
PRCD SWITCH
IF APPLICABLE
The machine electrical cable is equipped with a PRCD
switch which protects the operator against electrocution.
As soon as the drilling machine is plugged in, the PRCD
should be started up by pressing on the (green) -RESET-
button. If the PRCD is switched off , the -RESET- button
must be pressed again.
Note:
• The PRCD and the electrical cable should never come in
contact with water
• Check the PRCD by pressing the -TEST button before
use.
• Never use the diamond drilling machine without a
properly functioning PRCD
• Never replace the standard plug with another type of plug
WORKING PROCES
If drilling is done by hand, initially the drill should never
be applied perpendicular to the material (the drill may
start 'spinning'). Spinning is prevented by drilling the fi rst
centimeter / 0,5 inch at an angle of 30 degrees. Then the
drill can be slowly brought to the desired position.
In order to centre without problems, it is advised to use a
pilot drill. Once the pilot drill is removed, the drill can be
placed in the pre-drilled hole.
Tips
• Diamond drills which are not precisely circular cause
extra burden to the bearings and the cogs.
• Switch on the machine only if the diamond drill can turn
freely.
• When changing the diamond drill, always use 2 spanners.
Never use a hammer as this may damage the cogs.
Extra Side handle
The side handle can be loosened by hand to change its
position. After position is set , twist the handle again until
fi rm. By removing this handle, it is possible to mount the
drilling machine in a drilling rig.
Switching on/off
If the machine is provided with a switch with a fi x button,
with which the machine can be switch on/off in 2 ways:
1 - Moment switch
Switch on; push in switch
Switch off; release switch
2 - Permanent switch
Switch on; push in switch and secure using fi x button (for
use in a drill standard)
Switch off; release switch and release again
Overload protection
To protect the motor, operator and diamond drill, the
machine is provided with a mechanical, electronic and
thermal overload safety system. Whenever the engine is
switched off due to overload, it must be switched on again
as soon as possible to cool the engine. Then let the drill
turn for a minimum of 1 minute.