Hitachi DH 38MS Handling Instructions Manual page 5

Tool Part of SDS
max shank
(3) Pull the tool to make sure it is locked completely.
(4) To remove the tool, fully pull the grip in the direction of the
arrow and pull out the tool.
5. RCD
The use of a residual current device with a rated residual
current of 30 mA or less at all times is recommended.
HOW TO USE THE ROTARY HAMMER
NOTE: Ensure that the wing bolt in the side handle is
properly tightened before using the tool.
1. How to drill holes (Fig. 3)
(1) Pull the switch trigger after applying the drill bit tip to the
drilling position.
(2) It is unnecessary to forcibly press the rotary hammer
main body. It is suffi cient to slightly press the rotary
hammer to an extent that shavings are freely discharged.
CAUTION
Although this machine is equipped with a safety clutch, if
the drill bit becomes bound in concrete or other material,
the resultant stoppage of the drill bit could cause the
machine body to turn in reaction. Ensure that the
main handle and side handle are gripped fi rmly during
operation.
2. How to chisel or demolish (Fig. 4)
By applying the drill bit tip to the chiseling or demolishing
position, operate the rotary hammer by utilizing its empty
weight.
Forcible pressing or thrusting is unnecessary.
Front cap
Grip
Fig. 2
Side handle
Fig. 3
Fig. 4
3. When drilling at "rotation + hammering":
CAUTION
If you switch the selector lever during motor rotation, the
tool can start to rotate abruptly, resulting in unexpected
accidents. Be sure to switch the selector lever when the
motor is at a complete stop.
(1) Switching to "rotation + hammering"
(a) Push the button, release lock and turn the selector
lever clockwise.
▲
(b) Align of the selector lever and
holder as illustrated in Fig. 5.
(c) Release the button to lock the selector lever.
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.
4. When demolishing and chiseling at "hammering":
CAUTION
○ 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.
○ 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
holder as illustrated in Fig. 6.
(c) Release the button to lock the selector lever.
Selector lever
Button
of the lever
Lever holder
Button
Fig. 5
of the lever
Lever holder
Fig. 6
5