Truper ROTI-20N Manual Del Usuario página 20

Torque adjust to drill screw
• To select the desired torque level to screw drive, turn the
torque regulator until it matches the corresponding
number with the upper mark:
From 1 to 3 for small screws,
From 4 to 7 for screws on soft materials,
From 8 to 11 for screws on soft and hard material,
From 12 to 16 for screwing hardwood screws and larger
screws.
• The torque level necessary depends on
CAUTION
the type of screw to be used and the material onto which
you are working. If in doubt use a lower torque and
increase gradually until reaching the right one. An
adequate torque prevents damaging the tool.
Turn On and operation control
• The switch allows selecting the adequate speed for each
job. The more you push the switch the fastest the hammer
drill will run.
• The switch is also built with a braking function. When
releasing the trigger, the hammer drill will immediately stop
and you will be able to use it as a manual screwdriver to give
a screw an extra turn.
Screwing - Unscrewing
• It is recommended to first bore a "pilot orifice"; slightly
longer and barely narrower than the measurements of the
screw. This orifice will be the entry guide for the screw and
will make it easier to tighten. When screwing near the edge
of a work piece, a pilot orifice prevents the wood from
cracking.
• Use the adequate type of tip for each screw head to
prevent the screw from sticking over from the surface.
• If inserting the screw gets difficult remove and try to bore
a slightly longer or wider orifice. However keep in mind
there should be enough material to fasten the screw. If
you reinitiate the screwing operation in an already-made
orifice, start threading it by hand. If still difficult to thread
the screw (as with noble woods), try using lubricants like
soap. Liquid soap is more useful.
• Always apply enough pressure on the hammer drill to
prevent the screw head to slide. It is easy that the screw
head gets damaged, making it difficult to completely get
inserted or even to remove it.
Additional recommendations
• Use the adequate speed for each job: do not try to bore at low speeds or to screw at high speeds.
• If the operation overloads the hammer drill, take it out and repeat the operation applying less strength.
• Use low speeds to start bores where there is no support point; on plastic or metal; when screwing, boring ceramic or
any other application that requires a high torque. Use high speeds to drill woods and using polishing devices.
To get a longer hammer drill duty life, use the variable speed control.
8
ENGLISH
Start Up
LED light is ON while the
switch is pushed and is OFF
when releasing the switch.
Drilling
• When trying to bore large diameter orifices it is better to
start with a narrow bit and then replace it with the required
size. This prevents overloading the hammer drill.
• When drilling deep orifices remove the bit a little and
regularly while boring to allow the shavings to be correctly
expelled from the orifice.
• If the bit gets stuck, immediately release
CAUTION
the switch to prevent damaging the tool. Try to release the
bit reversing the operation direction.
• Keep the hammer drill aligned regarding the orifice.
Ideally the bit shall enter the work piece perpendicularly. If
the angle is changed while drilling could make the bit to
break and block the orifice or causing personal injury.
Torque
regulator