Manual Hitachi DH30PB (page 11 of 86) (English, German, Dutch, French, Italian, Portuguese, Spanish)

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⅜ Please replace the drill bit after removing dust

collector (B).

6. Selecting the driver bit

Screw heads or bits will be damaged should an

inappropriate bit for the screw diameter be employed

to drive in the screws.

7. Selecting the function mode

You can switch functions to the 3 modes of “strike

only, “rotation + strike”, and “rotation only” by

turning the change lever while pressing the push

button. Set the ▲ mark position of the change lever

to that of the mode to be used.

CAUTION:

⅜ Before operating the change lever, check and make

sure that the motor has stopped.

A failure can occur if it is operated while the motor

is running.

⅜ If the change lever does not move up to the mark

position of each mode, carry out switching while

turning the grip end to left and right. Also, it can

become difficult to change the mode at low

temperature, and therefore perform warming-up.

⅜ To operate the change lever, press the push button,

and release the lock of the change lever. Also, check

and make sure after operation that the push button

has returned and that the change lever has been

locked.

⅜ Switch the change lever without mistake. If it is

used at a position halfway, there is a fear that the

service life of the switching mechanism may be

shortened.

⅜ Note that it is impossible to switch from “rotation

only” to “strike only” or from “strike only” to

“rotation only”. Switch over via “rotation + strike”.

(DH30PC)

HOW TO USE

CAUTION:

To prevent accidents, make sure to turn the switch off

and disconnect the plug from the receptacle when the

drill pits and other various parts are installed or removed.

The power switch should also be turned off during a

work break and after work.

1. Switch operation

The rotation speed of the drill bit can be controlled

steplessly by varying the amount that the trigger

switch is pulled. Speed is low when the trigger

switch is pulled slightly and increases as the switch

is pulled more.

2. Rotation + striking

This hammer drill can be set to rotation and striking

mode by pressing the push button and turning the

change lever to the

mark. (Fig. 4)

(1) Mount the drill bit.

(2) Pull the trigger switch after applying the drill bit

tip to the drilling position. (Fig. 5)

(3) Pushing the rotary hammer forcibly is not necessary

at all. Pushing slightly so that drill dust comes out

gradually is sufficient.

CAUTION:

When the drill bit touches construction iron bar, the

bit will stop immediately and the rotary hammer

will react to revolve. Therefore grip the side handle

and handle tightly as shown in Fig. 5.

3. Rotation only

This rotary hammer can be set to rotation only

mode by pussing the push button and turning the

change lever to the

mark. (Fig. 6)

To drill wood or metal material using the drill chuck

and chuck adapter (optional accessories), proceed

as follows.

Installing drill chuck and chuck adapter: (Fig. 7)

(1) Mount the drill chuck to the chuck adapter.

(2) The part of the SDS-plus shank is the same as the

drill bit. Therefore, refer to the item of “Mounting

the drill bit” for attaching it.

CAUTIONS:

⅜ Application of force more than necessary will not

only expedite the work, but will deteriorate the tip

edge of the drill bit and reduce the service life of

the rotary hammer in addition.

⅜ Drill bits may snap off while disengaging the rotary

hammer from the jammed hole. For disengaging,

it is important to use a pushing motion or turn the

drill bit counterclockwise.

⅜ Do not attempt to drill anchor holes or holes in

concrete with the machine set in the rotation only

function.

⅜ Do not attempt to use the rotary hammer in the

rotation and striking function with the drill chuck

and chuck adapter attached. This would seriously

shorten the service life of every component of the

machine.

4. When driving machine screws (Fig. 8)

First, insert the bit into the socket in the end of

chuck adapter (D).

Next, mount chuck adapter (D) on the main unit

using procedures described in 4 (1), (2), (3), put the

tip of the bit in the slots in the head of the screw,

grasp the main unit and tighten the screw.

CAUTIONS:

⅜ Exercise care not to excessively prolong driving

time, otherwise, the screws may be damaged by

excessive force.

⅜ Apply the rotary hammer perpendicularly to the

screw head when driving the screw; otherwise, the

screw head or bit will be damaged, or driving force

will not be fully transferred to the screw.

⅜ Do not attempt to use the rotary hammer in the

rotation and striking function with the chuck adapter

and bit attached.

5. When driving wood screws (Fig. 8)

(1) Selecting a suitable driver bit

Employ cross-recessed screws, if possible, since the

driver bit easily slips off the heads of slotted-head

screws.

(2) Driving in wood screws

⅜ Prior to driving in wood screws, make pilot holes

suitable for them in the wooden board. Apply the

bit to the screw head grooves and gently drive the

screws into the holes.

⅜ After rotating the rotary hammer at low speed for

a while until the wood screw is partly driven into

the wood, squeeze the trigger more strongly to

obtain the optimum driving force.

CAUTION:

Exercise care in preparing a pilot hole suitable for

the wood screw taking the hardness of the wood

into consideration. Should the hole be excessively

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Hitachi DH30PB Manual

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