User manual

6
4. When demolishing and chiseling at “hammering”:
CAUTION:
䡬 If the selector lever is switched during motor rotation,
the tool can start to rotate abruptly, resulting in
unexpected accidents. Make sure to switch the
selector lever when the motor is at a complete stop.
䡬 If the bull point or cold chisel is used at the position
of ”rotation + hammering”, the tool can start to
rotate, resulting in unexpected accidents. Make
sure that they are used at the position of
”hammering”.
(1) Switching to ”hammering”
(a) Push the button, release lock and turn the selector
lever counterclockwise.
(b) Align ▲ of the selector lever and
of the lever
holder as illustrated in Fig. 6.
(c) Release the button to lock the selector lever.
Fig. 6
NOTE:
Turn the selector lever (do not push the button) to
check if it is completely locked and make sure that
it does not turn.
(2) When fixing working positions of tools such as cold
chisel, etc.,
(a) Push the button, release lock and turn the selector
lever.
Align ▲ of the selector lever and

of the lever
holder as illustrated in Fig. 7.
(b) Release the button to lock the selector lever.
Fig. 7
(c) Turn the grip as illustrated in Fig. 8 and fix the
tool to the desired working direction.
Fig. 8
(d) Switch the selector lever to “hammering”
according to the procedures mentioned in the
above item (1) and secure the position of the tool.
5. Warming up (Fig. 9)
The grease lubrication system in this unit may
require warming up in cold regions.
Position the end of the bit so makes contact with
the concrete, turn on the switch and perform the
warming up operation. Make sure that a hitting
sound is produced and then use the unit.
Fig. 9
CAUTION:
When the warming up operation is performed, hold
the side handle and the main body securely with
both hands to maintain a secure grip and be careful
not to twist your body by the jammed drill bit.
DRILLING AND DRIVING-IN OPERATIONS FOR
ANCHORS
1. When a taper shank adapter is used. (Fig. 10)
(1) Install drill bit with taper shank in the taper shank
adapter.
Button
Selector lever
Lever holder
Button
Selector lever
Lever holder
Grip
01Eng_DH38MS_Eng 11/25/08, 18:256