Ratio TR750NM Manual De Instrucciones página 31

6. SWITCH LOCK-ON BUTTON (See Fig. E)
B
Depress on/off switch then lock-on button,
release on/off switch first and lock-on button
second. Your switch is now locked on for
D
continuous use. To switch off your tool just
depress and release the on/off switch.
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C
E
7. VARIABLE SPEED CONTROL
The on/off switch is also a variable speed switch
that delivers higher speed and torque with
increased trigger pressure. Speed is controlled
by the amount of switch trigger depression.
D
6. FORWARD AND REVERSE ROTATION
CONTROL (See Fig. F)
F
To change the rotational direction, push the
forward/reverse selector switch to the right
position (as viewed from the front of the drill).
The rotation will now be forward rotation. Push
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the forward/reverse selector switch to the left
position. The rotation will be backward rotation.
WARNING! Never change the direction
E
of rotation when the tool is rotating, wait
until it has stopped.
F
WORKING HINTS FOR
YOUR DRILL
1. Drilling masonry and concrete
Select the drill/impact action selector switch to
the "hammer symbol" position. Tungsten carbide
drill bits should always be used for drilling
masonry, concrete etc with a high speed.
2
2
2. Drilling steel
Select the drill/impact action selector switch to
the "drill symbol" position. HSS drill bits should
always be used for drilling steel with a lower
speed.
3. Pilot holes
When drilling a large hole in tough material (i.e.
steel), we recommend drilling a small pilot hole
first before using a large drill bit.
4. Drilling tiles
Select the drill/impact action selector switch
to the "drill symbol" position to drill the tile.
When tile has been penetrated, switch over to
"hammer symbol" position.
5. Cool the motor
If your power tool becomes too hot, set the
speed to maximum and run no load for 2-3
minutes to cool the motor.
MAINTENANCE
Remove the plug from the socket before
carrying out any adjustment, servicing or
maintenance.
Your power tool requires no additional lubrication
or maintenance. There are no user serviceable
parts in your power tool.
Never use water or chemical cleaners to clean
your power tool. Wipe clean with a dry cloth.
Always store your power tool in a dry place.
Keep the motor ventilation slots clean.
Keep all working controls free of dust.
Occasionally you may see sparks through the
ventilation slots. This is normal and will not
damage your power tool.
If the supply cord is damaged, it must be
replaced by the manufacturer, its service agent
or similarly qualified persons in order to avoid a
hazard.
TROUBLESHOOTING
1. If your power tool does not start, check the
plug on the power supply first.
2. If the drill doesn't work properly, check the
drill bit for sharpness, replace drill bit if worn.
Check that the drill is set to forward rotation
for normal use.
3. If a fault can not be rectified, return the tool
to an authorized dealer for repair.
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