OPERATING PROCEDURES
METAL DRILLING
For maximum performance, use high speed steel bits for metal or steel
drilling.
Push drilling mode selector to drilling mode
Use a center punch to mark the hole location on the workpiece.
Begin drilling at a very low speed to prevent the bit from slipping off the
starting point.
Maintain a speed and pressure which allows cutting without overheating the
bit. Applying too much pressure will overheat the drill, wear the bearings, bend
or burn bits, produce off-center or irregular shaped holes.
When drilling large holes in metal, it is recommended to drill with a small bit
at first, then finish with a larger bit. Also, lubricate the bit with oil to improve
drilling action and increase bit life.
WOOD DRILLING
For maximum performance, use high speed steel bits for wood drilling.
Secure the workpiece to prevent it from turning when drilling.
Begin drilling at a very low speed to prevent the bit slipping off the starting
point. Increase the speed as the drill bit bites into the material.
When drilling through-holes, place a block of wood behind the workpiece to
prevent ragged or splintered edges on the back side of the hole.
Do not lock the trigger in the "on" position when the drill may need to be
stopped suddenly.
MAINTENANCE
Keep the vents clear of dust and debris. This will help prevent possible
electrical shorts and ensure proper cooling.
Keep the tool housing clean, free of oil and grease by using mild soap and a
damp (not wet) cloth.
Inspect the cord regularly and have it replaced by an authorized repair facility
if it is damaged.
Lubrication for this tool is done at the factory and should not be necessary
again under normal use.
Should the chuck require replacement,
1. Unplug the tool.
2. Open the chuck jaws as widely as possible so you can get at the chuck
retaining screw.
3. Unscrew the chuck retaining screw with a phillps screwdriver.
NOTE: This is a left hand threaded screw and you remove it by turning it
clockwise.
4. Clamp the shorter arm of a large allen wrench in the chuck, aligning it
with the jaws so they grip three of its six flat sides.
5. Close the jaws manually.
6. Place the drill on a flat surface, and support the chuck with a piece wood
about 8 mm or 3/8" above that surface.
7. Strike the long arm of the wrench with a hammer so that the chuck turns
counter-clockwise and unscrews from the spindle.
This may require a fairly sharp blow.
8. Repeat the process in reverse to install a new chuck.
WARNING! Repairs should be made by an authorized repair centre. Opening
this tool could invalidate your warranty.
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