QEP 21650 Manuel D'utilisation page 7

b. Secure a 5/8" or smaller shaft diameter mixing paddle in the drill chuck,
using the chuck key provided. It is advised to tighten the chuck using at least
two of the chuck key holes. Use a mixing paddle recommended for the
materials you are mixing.
c. Use a bucket or mixing vessel at least 1/4 larger than the volume of material
you intend to mix. Do not fill the container to the top. For example, if you are
using a five gallon bucket, leave at least four inches at the top to minimize
spills and splashing.
d. Run the mixing drill at low speed until the dry material and water are evenly
distributed. Do not run the drill at high speed if it appears to be slowed
down or labored. If the drill begins to heat up, allow it to cool, then run at a
lower speed.
e. When finished mixing, remove the mixing paddle from the drill. Wipe any
water, mud or debris from the drill with a clean, dry cloth. Wash the mixing
paddle with clean water. Do not allow grout, mortar or paint to dry on the
mixing paddle.
DRILLING
CAUTION: This tool contains a powerful motor. Clamp your work securely.
Maintain good footing and balance at all times. Always hold the tool securely by
both the trigger and auxiliary handles. Do not lock trigger into the "on" position
unless drill is properly secured.
1. Squeeze the trigger to turn on the drill. Release the trigger to turn off drill.
Drill can be locked into the ON position by squeezing the trigger, pressing and
holding down the trigger lock button, and then releasing the trigger.
2. Securely clamp your work while drilling to keep work from turning with the
bit and to free both hands to operate the drill.
3. Use a center punch to make a small indentation to start a drilled hole in the
right location and to prevent the drill bit from wandering on hard surfaces. To
drill holes into hard materials 1/4" or more in diameter, first drill a pilot hole
about 1/8" in diameter. The pilot hole will guide the bit and allow easier
drilling.
4. Place the tip of the bit lightly on the center of the intended hole before
starting the drill.
5. If the bit binds, immediately turn the switch OFF. Binding is usually caused by
pressing too hard, using a dull or bent bit, or using a bit that is improper for
the job.
6. Support finished work on both sides with scrap lumber to avoid splintering.
If using wood that is finished on one side, place it so that you drill into the
finished side first.
7. Before drilling thin sheet metals, clamp a piece of scrap lumber to each side
of the sheet and drill the entire "sandwich" to minimize vibrations.
8. For easy operation, keep the motor running while withdrawing the bit.
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