Ubermann UHD04CHI, Manual

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10 — English
MAINTENANCE
WARNING:
When servicing, use only identical replacement parts. Use of any
other part could create a hazard or cause product damage.
WARNING:
Always wear eye protection with side shields marked to comply
with ANSI Z87.1. Failure to do so could result in objects being
thrown into your eyes and other possible serious injuries.
WARNING:
To avoid serious personal injury, always remove the battery pack
from the tool when cleaning, performing any maintenance, or
when storing the tool.
General Maintenance
Avoid using solvents when cleaning plastic parts. Most plastics
are susceptible to damage from various types of commercial
solvents and can be damaged by their use. Use clean cloths to
remove dirt, dust, oil, grease, etc.
WARNING:
Do not at any time let brake fluids, gasoline, petroleum-based
products, penetrating oils, etc., come in contact with plastic
parts. Chemicals can damage, weaken or destroy plastic which
could result in serious personal injury.
Metal and Steel Drilling

Use a light oil on the drill bit to keep it from overheating. The oil
will prolong the life of the bit and increase the drilling action.

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; and
• Produce off-center or irregular-shaped holes.

When drilling large holes in metal, start with a small bit, then
finish with a larger bit.
Masonry Drilling
For maximum performance, use carbide-tipped masonry impact
bits or designated hammer drill bits when drilling holes in brick,
tile, concrete, etc. Select hammer mode.

Apply light pressure at medium speed for best results in brick.

Apply additional pressure for hard materials such as concrete.

When drilling holes in tile, practice on a scrap piece to
determine the best speed and pressure. Begin drilling at a
very low speed to prevent the bit from slipping off the starting
point.
OPERATION