Hitachi DH 14DL Handling Instructions Manual page 45

The rotational speed of the rotary hammer can be controlled by varying the amount that the
○
switch trigger is pulled. Speed is low when the switch trigger is pulled slightly and increases
as the switch trigger is pulled more.
When releasing the switch trigger, the brake will be applied for immediate stopping.
○
3. Rotation + Hammering
Turn the change lever fully in the direction of the "
mark to set "rotation + hammering".
(1) Mount the drill bit.
(2) Pull the trigger switch after applying the drill bit tip to the
drilling position. (Fig. 17)
(3) Pushing the rotary hammer forcibly is not necessary at all.
Pushing slightly so that drill dust comes out gradually is
just suffi cient.
CAUTION
When the drill bit touches construction iron bar,
the bit will stop immediately and the rotary hammer
will react to revolve. Therefore please grip the side
handle and handle tightly as shown in Fig. 18.
4. Rotation only
Turn the change lever fully in the direction of the " "
mark to set "rotation only". (Fig. 17)
To drill a wood or metal material using the optional drill
chuck and chuck adapter, proceed as follows.
Installing drill chuck and chuck adapter: (Fig. 19)
(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
Application of force more than necessary will not only expedite work at all, but
○
will deteriorate the tip edge of the drill bit and reduce the service life of the rotary
hammer in addition.
Drill bit may snap off while withdrawing the rotary hammer from the drilled hole.
○
For withdrawing, it is important to use a pushing motion.
Do not attempt to use the rotary hammer in the rotation and striking mode with the
○
drill chuck and chuck adapter attached. This would seriously shorten the service
life of every component of the machine.
"
Chuck adaptor
Drill chuck
45
English
" "mark
Change
lever
" "mark
Fig. 17
Fig. 18
Front
cap
Part of
Grip
SDS-plus
shank
Fig. 19