Ratio MR800NM Manual De Instrucciones página 32

off your tool just depress and release the on/off
switch.
7. VARIABLE SPEED CONTROL (SEE D)
Adjust the variable speed control to increase or
decrease the speed according to the material
and accessory to be used (also possible during
no load operation). Low speed will provide low
torque and high speed gives higher torque.
D
8. FORWARD AND REVERSE ROTATION
CONTROL (SEE E)
For drilling use forward rotation marked "
(lever is moved to the left). Only use reverse
rotation marked "
right) to release a jammed drill bit.
WARNING: Never change the direction
of rotation while the tool is rotating, wait
until it has stopped.
9. FUNCTION MODE SELECTION (See D)
The operation of the gearbox for each application
is set with the function mode selection switch
(4). To change between functions, depress the
unlocking button (12) and rotate the selector to
the desired operating mode.
For impacting only - for
light chipping, chiseling
and demolition applications
choose the Hammer
position.
For drilling into steel, wood
and plastics choose the
Rotary drilling position.
For simultaneous drilling
and impacting of concrete
or masonry, choose the
Hammer drilling position.
32
" (lever is moved to the
WARNING: The operating mode selector
switch may be actuated only at a
standstill.
WORKING HINTS FOR
YOUR TOOL
1. Reduce the pressure on the drill bit when it is
about to break through. This will prevent the drill
from jamming.
2. When drilling a large hole, first drill a pilot hole
using a smaller drill bit.
3. Always apply pressure to your drill bit in a
straight line, and if possible at right angles to the
workpiece.
4. Never change the operating mode whilst the
rotary hammer is running.
5. Do not apply excessive pressure to the tool
when chiseling. Expressive force does not speed
up the work.
"
MAINTENANCE
Remove the plug from the socket before
carrying out any adjustment, servicing 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 your hammer becomes too hot in use, set
the hammer switch to the drill mode and allow
your drill to operate at maximum speed without
load for 2 minutes.
3. If your hammer work efficiency is too low,
please add sufficient grease in the grease box.
4. If your hammer use in low efficiency, please
check whether the tool is blunt.