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4. When chipping and shredding at “hammering”:
CAUTION:
⅜
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.
⅜
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 positon 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. 7.
(c) Release the button to lock the selector lever.
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. 8.
(b) Release the button to lock the selector lever.
Fig. 7
Lever holder
Selector lever
Button
(c) Turn the grip as illustrated in Fig. 9 and fix
the tool to the desired working direction.
(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. Install the stopper (Fig. 10)
(1) Loosen the side handle and insert the straight
portion of the stopper into the handle bolt hole
from the front cover.
(2) Loosen the side handle, move the stopper to the
specified position and rotate the grip of the side
handle clockwise to fix the stopper.
6. Warming up (Fig. 11)
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. 8
Selector lever
Lever holder
Button
Grip
Fig. 9
Stopper
Side handle
Fig. 10
01Eng_DH40MRY_US 12/18/06, 10:439