Hitachi Koki USA cordless hammer User Manual download pdf (Page 17)

English

HOW TO USE

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. To turn the switch OFF, release the trigger

switch to its original position.

2. Rotation + Striking

This rotary hammer can be set to rotation and strik-

ing mode by turning the change lever fully coun-

terclockwise to mark. (Fig. 12)

(1) Mount the drill bit.

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

tip to the drilling position (Fig. 13)

(3) Pushing the rotary hammer forcibly is not neces-

sary at all. Pushing slightly so that drill dust comes

out gradually is just sufficient.

CAUTION:

䡬 When the drill bit touches an iron reinforcing rod,

the bit will stop immediately and the rotary ham-

mer will react to revolve. Therefore please grip the

side handle and handle tightly as shown in Fig.

13.

3. Rotation only

The rotary hammer can be set to rotation only

mode by rotating the change lever fully clockwise

to mark.

To drill a wood or metal material using the sepa-

rately sold drill chuck and chuck adaptor, proceed

as follows. Installing drill chuck and chuck adaptor

(Fig. 14):

(1) Attach the drill chuck to the chuck adaptor.

(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.

CAUTION:

䡬 Application of force more than necessary will not

only reducing drilling efficiency at all, but will de-

teriorate the tip edge of the drill bit and reduce

the service life of the rotary hammer in addition.

䡬 Drill bit may snap off while withdrawing the ro-

tary hammer from the drilled hole. For withdraw-

ing, it is important to use a pushing motion.

“

” mark

“ ”

mark

“

”

mark

Change

lever

Fig. 12

Part of SDS-plus

shank

Front cap

Grip

Chuck

adaptor

Drill

chuck

Fig. 14

Fig. 13

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 79 80

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Hitachi Koki USA cordless hammer User Manual Page 17

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