Starting And Stopping; Operational Tips - Valex T500 Instrucciones Para El Uso E Instrucciones De Seguridad

STARTING AND STOPPING

! IMPORTANT! Before starting the electrical tool it is com-
pulsory to wear protection goggles, gloves and headphones
(not provided).
! IMPORTANT! Make sure nobody is approaching the working
area while the tool is running.
Starting
1) Plug the tool into the power supply
2) Position the rotation direction switch (pos.3) in one of the
two operating positions (not in the centre)
3) Firmly grasp the hand grip (pos.7) in your hand
4) To start press the button (pos.5)
The switch is a 'maintained action' switch so the electrical tool
will stay on when you keep the switch pressed.
Stopping
To stop the drill release the switch.
Continuous operation (if fitted)
For continuous operation it is necessary to press the button (pos.
6) so as to lock the switch after the start-up phases.
Then to stop the tool press the switch (pos. 5) and release it
immediately.
IMPORTANT! When working with the switch in continuous
mode, never let go of the grip on the main handle so that,
in the event of danger, you can immediately stop the tool.
We recommend repeating these operations several times before
starting work, in order to familiarise yourself with the controls
as far as possible.
If you notice any working defects, switch off the electrical tool
and consult the chapter "Problems, causes and solutions".
When not using the tool, turn it off and disconnect the plug
from the socket.

OPERATIONAL TIPS

After reading the previous chapters carefully, apply these tips
scrupulously to obtain maximum performance.
Proceed calmly so as to become familiar with all the controls;
after having gained sufficient experience you will be able to make
full use of its potential.
ELECTRONIC CHUCK SPEED ADJUSTMENT (if fitted, fig. D)
Press the switch (pos.5) gradually until the desired speed is
reached. With less pressure low speeds are obtained, whereas
with more pressure high speeds are obtained.
MECHANICAL CHUCK SPEED ADJUSTMENT (if fitted)
IMPORTANT! The speed selection operation must be perfor-
med with the tool off and the chuck stationary.
By moving the switch (pos.10) it is possible to mechanically
select the desired speed.
Speed 1: low number of revolutions and high torque (for holes with
a large diameter or screwing large screws into a hard material).
Speed 2: high number of revolutions and low torque.
CHUCK SPEED RANGE ADJUSTMENT (if fitted)
Turn the grain roller (pos.4) on the switch, in order to limit the
switch stroke and the maximum chuck speed.
CHUCK ROTATION DIRECTION REGULATION (fig. C)
IMPORTANT! The rotation direction inversion operation must
be performed with the tool off and the chuck stationary.
For drilling operations and tightening right thread screws
(clockwise), move the rotation direction switch (pos.3) to 'R'.
For unscrewing operations, or removal of embedded bits and
tightening left thread screws (anti-clockwise), move the rotation
direction switch to 'L'.
PERCUSSION ACTIVATION AND DEACTIVATION (if fitted, fig. E)
IMPORTANT! The percussion activation /deactivation ope-
ration must be performed with the tool off and the chuck
stationary.
Move the switch (pos.2) to the symbol
sion or move the switch to the symbol for drilling.
DEPTH LIMIT (if fitted)
For drilling with calibrated depth use the limit stop reference rod
(pos.8), to be inserted in the side hand grip support (pos.9).
For safety reasons always use the tool with the extra hand grip
installed.
LIGHTING FOR WORK AREA (if fitted)
The light comes on or off automatically when the tool is
switched on.
REPLACING DRILL BITS
See chapter "STARTING UP".
DRILL BITS (not supplied)
Buy good quality bits, with a suitable connection for the cha-
racteristics of the chuck and suitable for the material to be drilled.
Contact your retailer who will be able to give you the best advice.
Our company produces a wide range of bits suitable for the
various uses (metal, wood, brick, etc.).
DRILLING OPERATION
Always secure small items in a vice when drilling. Use a punch
to mark the initial drilling point. Keep the drill bits sharp. To drill
large holes first drill a number of small holes to avoid the bit
jamming in the hole and thus overloading the tool.
Reduce the drilling pressure when the bit is nearly out of the item.
Be cautious with the sawdust produced which is very hot and
also very sharp. Wear goggles and protective gloves!
Drilling metal
Use HSS bits. If the item is a thin metal sheet, place a block
of wood under the metal sheet to prevent the bit getting stuck.
To drill a cast iron item, use bits suitable for this material.
With steel items, use special liquid coolant; with aluminium use
paraffin as a coolant, whereas with brass and cast iron do not
use liquids but take the bit out of the hole frequently to allow
it to cool down.
Drilling wood and plastic
Always use bits that are suitable for drilling wood and plastic.
Keep in mind that they are fragile materials and it is possible
that the item can crack during drilling.
Drilling bricks
Always use bits with hard metal inserts (such as Widia etc.) that must
always be in good condition. Apply a constant drilling pressure throu-
ghout the job. Frequently take the bit out of the hole to remove dust.
If fitted, set the percussion function (pos.2) to facilitate the action
of the bit. For drilling tiles deactivate the percussion function, to
prevent the tile cracking unexpectedly.
MAINTENANCE
! IMPORTANT! Before any checks or adjustment unplug the
tool from the electric power supply.
to activate the percus-
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