DeWalt DCD776 Service Manual download pdf (Page 44)

ENGLISH

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

center 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. 6)

DCD776 ONLY

1. Turn the collar (c) to the 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 DEWALT 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.

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.

There are no serviceable parts inside.

Lubrication

Your power tool requires no additional lubrication.

Cleaning

WARNING: Blow dirt and dust out of

the main housing with dry air as often as

dirt is seen collecting in and around the

air vents. Wear approved eye protection

and approved dust mask when

performing this procedure.

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.

CHARGER CLEANING INSTRUCTIONS

WARNING: Shock hazard. Disconnect

the charger from the AC outlet before

cleaning. Dirt and grease may be

removed from the exterior of the charger

using a cloth or soft non-metallic brush.

Do not use water or any cleaning

solutions.

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DeWalt DCD776 Service Manual Page 44

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