Manual Makita DDA460 (page 9 of 72) (English, German, Dutch, Danish, French, Italian, Portuguese, Turkish, Spanish)

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9 ENGLISH

Installing or removing drill bit

To install the drill bit, place it in the chuck as far as it will

go.Tightenthechuckbyhand.Placethechuckkeyin

each of the three holes and tighten clockwise. Be sure

totightenallthreechuckholesevenly.

Toremovethedrillbit,turnthechuckkeycounterclock-

wiseinjustonehole,thenloosenthechuckbyhand.

►Fig.12: 1.Chuckkey

Afteruse,returnthechuckkeytothestoragecavityon

the tool as illustrated.

►Fig.13

OPERATION

CAUTION: Always insert the battery cartridge

all the way until it locks in place.Ifyoucanseethe

red indicator on the upper side of the button, it is not

lockedcompletely.Insertitfullyuntiltheredindicator

cannotbeseen.Ifnot,itmayaccidentallyfalloutof

thetool,causinginjurytoyouorsomeonearound

you.

CAUTION: When the speed comes down

extremely, reduce the load or stop the tool to

avoid the tool damage.

CAUTION: Hold the tool rmly when operat-

ing the tool.

Holding tool

CAUTION: This is a powerful tool. High torque

is developed and it is important that the tool

should be securely held and properly braced.

Grasp the handle with one hand and the front handle

with the other hand.

►Fig.14: 1. Front handle 2. Handle

When drilling a large hole with a self-feed bit, etc., the

sidegrip(auxiliaryhandle)shouldbeusedasabraceto

maintain safe control of the tool.

Whendrillingactionisforward(clockwise),thetool

should be braced to prevent a counterclockwise reac-

tion if the bit should bind.

►Fig.15: 1. Reaction 2. Forward 3. Side grip

When reversing, brace the tool to prevent a clockwise

reaction.Ifthedrillbitmustberemovedfromapartially

drilledhole,besurethetoolisproperlybracedbefore

reversing.

►Fig.16: 1. Reaction 2. Reverse

Drilling operation

Drilling in wood

When drilling in wood, the best results are obtained

with wood drills equipped with a guide screw. The guide

screwmakesdrillingeasierbypullingthedrillbitinto

the workpiece.

Drilling in metal

To prevent the drill bit from slipping when starting a

hole, make an indentation with a center-punch and

hammer at the point to be drilled. Place the point of the

drill bit in the indentation and start drilling.

Use a cutting lubricant when drilling metals. The excep-

tionsareironandbrasswhichshouldbedrilleddry.

CAUTION: Pressing excessively on the tool

will not speed up the drilling. In fact, this excessive

pressurewillonlyservetodamagethetipofyourdrill

bit, decrease the tool performance and shorten the

service life of the tool.

CAUTION: Hold the tool rmly and exert care

when the drill bit begins to break through the

workpiece. There is a tremendous force exerted on

the tool/drill bit at the time of hole break through.

CAUTION: A stuck drill bit can be removed

simply by setting the reversing switch to reverse

rotation in order to back out. However, the tool

may back out abruptly if you do not hold it rmly.

CAUTION: Always secure workpieces in a

vise or similar hold-down device.

CAUTION: Avoid drilling in material that you

suspect contains hidden nails or other things that

may cause the drill bit to bind or break.

CAUTION: If the tool is operated continuously

until the battery cartridge has discharged, allow

the tool to rest for 15 minutes before proceeding

with a fresh battery.

Lanyard (tether strap) connection

Safety warnings specic for use at height

Read all safety warnings and instructions. Failure

tofollowthewarningsandinstructionsmayresultin

seriousinjury.

1. Always keep the tool tethered when working

"at height". Maximum lanyard length is 2 m

(6.5 ft).

2. Use only with lanyards appropriate for this tool

type and rated for at least 7.0 kg (15.4 lbs).

3. Do not anchor the tool lanyard to anything on

your body or on movable components. Anchor

the tool lanyard to a rigid structure that can

withstand the forces of a dropped tool.

4. Make sure the lanyard is properly secured at

each end prior to use.

5. Inspect the tool and lanyard before each use

for damage and proper function (including

fabric and stitching). Do not use if damaged or

not functioning properly.

6. Do not wrap lanyards around or allow them to

come in contact with sharp or rough edges.

7. Fasten the other end of the lanyard outside

the working area so that a falling tool is held

securely.

8. Attach the lanyard so that the tool will move

away from the operator if it falls. Dropped tools

willswingonthelanyard,whichcouldcauseinjury

or loss of balance.

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Makita DDA460 Manual

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