Manual DeWalt D21570 (page 33 of 156) (English, German, Dutch, Danish, French, Italian, Polish, Portuguese, Swedish, Turkish, Spanish, Norwegian, Finnish)

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ENGLISH

1 Instruction manual

1 Exploded drawing

• Check for damage to the tool, parts or

accessories which may have occurred during

transport.

• Take the time to thoroughly read and

understand this manual prior to operation.

Description (ﬁ g. 1, 4)

WARNING: Never modify the power

tool or any part of it. Damage or

personal injury could result.

a. Trigger switch

b. Reversing lever

c. Chuck

d. Speed/mode selector collar

e. Side handle

f. Indicator light (DWD530, D21570)

g. Main handle

h. Date code

i. Chuck key (D21570)

j. Lock-on button

INTENDED USE

Your heavy-duty percussion drill has been designed

for professional drilling and hammerdrilling

applications.

The D21570 has been designed for professional dry

diamond drilling into masonry.

DO NOT use under wet conditions or in presence of

flammable liquids or gases.

These heavy-duty percussion drills are professional

power tools.

DO NOT let children come into contact with the

tool. Supervision is required when inexperienced

operators use this tool.

TRIGGER SWITCH (FIG. 3)

To start percussion drill, depress the trigger switch

(a). To stop percussion drill, release the trigger

switch.

VARIABLE SPEED (FIG. 3)

Variable speed permits speed control. The further

the trigger switch (a) is depressed, the higher the

speed of the percussion drill.

If necessary, press the lock-on button (j) for

continuous operation and release the switch. The

lock-on button works only in full speed, forward

rotation.

To stop the tool in continuous operation, press the

switch briefly and release it. Always turn the tool off

when work is finished and before unplugging.

NOTE: Use lower speeds for starting holes, drilling

in plastics or ceramics or for driving screws.

REVERSING LEVER (FIG. 3)

The reversing lever (b), located above the trigger

switch, changes the direction of rotation of the

percussion drill and is used when backing out

screws and jammed drill bits.

To operate the tool in reverse, release the trigger

switch (a) and push the lever to the left (when

viewed from the chuck end).

To operate the drill in forward, release the trigger

switch and push the lever to the right (when viewed

from the chuck end).

Return the reversing lever to the forward position

after all operations in reverse are completed.

HIGH/LOW SPEED OPERATION (FIG. 1, 5)

The two speed gear drive in the dual range

percussion drill permits effective operation over an

extended range of applications with greater selection

of accessories.

For LOW SPEED operation, turn the collar (d) to the

drill bit symbol for drilling position 1.

For HIGH SPEED operation, turn the collar (d) to the

drill bit symbol for drilling position 2.

The gear train has been designed for shifting only

when the unit is off. It may be necessary, however,

to rotate the chuck slightly by hand to align the

gears while turning the collar.

NOTICE: DO NOT ATTEMPT TO

CHANGE SPEEDS by turning the collar

when the tool is running. Doing so will

damage the gear train.

HAMMER/DRILL SELECTOR (FIG. 1, 5)

To switch the tool from the drilling mode to the

hammering mode (or vice-versa) rotate the collar (d)

to the applicable symbol as shown in figure 5.

Turn the collar (d) to the drill bit symbol for drilling or

to the hammer symbol for hammerdrilling, as shown

in the figure.

TORQUE LIMITING CLUTCH

This tool is equipped with a torque limiting clutch

that reduces the maximum torque reaction

transmitted to the operator in case of jamming of a

drill bit. This feature also prevents the gearing and

electric motor from stalling. The torque limiting clutch

has been factory-set and cannot be adjusted.

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DeWalt D21570 Manual

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