Hitachi DH 24DV Instructions De Sécurité Et Mode D'emploi page 22

English
8. Switching between the "SAVE" and the
"POWER" modes
The hammering force of the hammer can be
increased or decreased to conform with intended
usage, by operating the shift knob as per Fig. 19.
Adjust the force to match the usage intended.
(1) "SAVE" mode ... decreased hammering force
This can prevent thin drill bits which are less than
5 mm in diameter, from being bent or broken.
(2) "POWER" mode ... increased hammering force
This can be used to speedily and efficiently drill
holes when the drill bits which are being used are
greater than 5 mm in diameter.
This can be used to drill holes into wood or metal.
CAUTION:
Do not drill holes in wood with the "SAVE" mode.
There is a likelihood that the motor will burn out
because it can easily lock up due to the low power.
22
"SAVE"
mode
Shift
knob
"POWER"
mode
Fig. 19