Maintenance; Protecting The Environment - DeWalt DCD771S2 Original Instructions Manual

English
3. For WOOD, use twist bits, spade bits, power auger bits or
hole saws. For METAL, use high-speed steel twist drill bits
or hole saws. Use a cutting lubricant when drilling metals.
The exceptions are cast iron and brass which should be
drilled dry.
4. Always apply pressure in a straight line with the bit. Use
enough pressure to keep drill biting, but do not push hard
enough to stall the motor or deflect the bit.
5. Hold tool firmly with both hands to control the twisting
action of the drill. If model is not equipped with side handle,
grip drill with one hand on the handle and one hand on the
battery pack.

CAUTION: Drill may stall if overloaded causing a sudden
twist. Always expect the stall. Grip the drill firmly to control
the twisting action and avoid injury.
6. iF DRill sTAlls, it is usually because it is being overloaded
or improperly used. RElEAsE TRiggER iMMEDiATElY,
remove drill bit from work, and determine cause of stalling.
DO nOT CliCK TRiggER On AnD OFF in An ATTEMPT
TO sTART A sTAllED DRill — This CAn DAMAgE
ThE DRill.
7. To minimize stalling or breaking through the material,
reduce pressure on drill and ease the bit through the last
fractional part of the hole.
8. Keep the motor running when pulling the bit back out of a
drilled hole. This will help prevent jamming.
9. With variable speed drills there is no need to centre punch
the point to be drilled. Use a slow speed to start the hole
and accelerate by squeezing the trigger harder when the
hole is deep enough to drill without the bit skipping out.
Hammerdrill Operation (Fig. F)
(DCD776)
1. Turn the torque adjustmen collar
hammerdrill symbol.
2. Select the high speed setting by sliding the selector back
(away from the chuck).
iMPORTAnT: Use carbide-tipped or masonry bits only.
3. Drill with just enough force on the hammer to keep it from
bouncing excessively or "rising" off the bit. Too much force
will cause slower drilling speeds, overheating and lower
drilling rate.
4. Drill straight, keeping the bit at a right angle to the work. Do
not exert side pressure on the bit when drillling as this will
cause clogging of the bit flutes and a slower drilling speed.
5. When drilling deep holes, if the hammer speed starts to
drop off, pull the bit partially out of the hole with tool stil
running to help clear debris from the hole.
nOTE: A smooth, even flow of dust from the hole indicates
proper drilling rate.

MAINTENANCE

Your power tool has been designed to operate over a long
period of time with a minimum of maintenance. Continuous
satisfactory operation depends upon proper tool care and
regular cleaning.
12
to the
3

WARNING: To reduce the risk of serious personal
injury, turn tool off and disconnect battery pack
before making any adjustments or removing/
installing attachments or accessories. An accidental
start‑up can cause injury.
The charger and battery pack are not serviceable.
Lubrication
Your power tool requires no additional lubrication.
Cleaning

WARNING: Electrical shock and mechanical hazard.
Disconnect the electrical appliance from the power source
before cleaning.

WARNING: To ensure safe and efficient operation,
always keep the electrical appliance and the ventilation
slots clean.

WARNING: Never use solvents or other harsh chemicals
for cleaning the non‑metallic parts of the tool. These
chemicals may weaken the materials used in these parts.
Use a cloth dampened only with water and mild soap.
Never let any liquid get inside the tool; never immerse any
part of the tool into a liquid.
Ventilation slots can be cleaned using a dry, soft non-metallic
brush and/or a suitable vacuum cleaner. Do not use water or
any cleaning solutions. Wear approved eye protection and an
approved dust mask.
Optional Accessories

WARNING: Since accessories, other than those offered
by D WALT, have not been tested with this product, use
e
of such accessories with this tool could be hazardous.
To reduce the risk of injury, only D
accessories should be used with this product.
Consult your dealer for further information on the
appropriate accessories.

Protecting the Environment

Separate collection. Products and batteries marked
w
with this symbol must not be disposed of with
normal household waste.
Products and batteries contain materials that can be
recovered or recycled reducing the demand for raw materials.
Please recycle electrical products and batteries according to local
provisions. Further information is available at www.2helpU.com.
Rechargeable Battery Pack
This long life battery pack must be recharged when it fails to produce
sufficient power on jobs which were easily done before. At the end
of its technical life, discard it with due care for our environment:
• Run the battery pack down completely, then remove it from
the tool.
• Li-Ion cells are recyclable. Take them to your dealer or a
local recycling station. The collected battery packs will be
recycled or disposed of properly.
WALT recommended
e