Maintenance - Wel-Bilt 21404 Owner's Manual

be very hot after even a short period of use.
Drilling in all materials
1. Always use sharp drill bits.
2. Mark the place where the hole is to be drilled.
3. Commence with a slow speed to start the hole then increase the speed once the hole has
been started.
4. Reduce your pressure on the tool when the drill bit is about to break through the material.
Drilling in metal
1. Move the mode selector to the right (drill bit icon
2. Support thin material on a scrap piece of wood.
3. Use a punch to mark the position of the hole. Careful use of the variable speed feature
allows you to start holes without centre punching. Operate the drill at a low speed until you
start the hole.
4. If drilling a large hole use a small drill at first to establish a pilot hole then use the required
larger sized drill bit.
5. Use only HSS (high speed steel) drill bits or those recommended for metal use.
6. When drilling into iron or steel, use a cooling lubricant, such as thin oil.
7. With aluminum, use turpentine or paraffin.
8. With brass, copper and cast iron, use no lubricant but withdraw the drill regularly to assist
cooling.
Drilling in wood
1. Move the mode selector to the right (drill bit icon
2. Mark the place where you want to drill with a punch or nail.
3. To avoid splintering on breakthrough either clamp a piece of scrap wood to the back of the
work piece or continue the hole from the back of the work piece when the drill bit first breaks
through.
Hammer drilling in masonry
1. Move the mode selector to the left (hammer icon
2. Hold the drill firmly and place the bit at the point to be drilled.
3. Depress the switch to start the drill.
4. Move the drill bit into the work piece applying only enough pressure to keep the bit cutting
Note: Do not force the drill or apply side pressure to elongate a hole. Let the drill and bit do
the work.
5. If the bit jams in the work piece or if the drill stalls, stop the tool immediately. Remove the bit
from the work piece and determine the reason for jamming.

MAINTENANCE

•
Maintain your Hammer Drill. It is recommended that the general condition of any Hammer Drill
be examined before it is used. Keep your Hammer Drill in good repair by adopting a program of
conscientious repair and maintenance. Have necessary repairs made by qualified service
personnel.
•
When not in use the drill should be stored in a dry, frost-free location not within the reach of
children.
) to select the drill mode.
) to select the drill mode.
) to select the hammer mode.
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