Hitachi DH50MB Instruction Manual - Page 12

How to chisel or crush Fig. 5, When drilling at, rotation, hammering, When chipping and shredding - drill machine

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UPC - 717709005600
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English 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 firmly during operation. 2. How to chisel or crush (Fig. 5) By applying the tool tip to the chiseling or crushing position, operate the rotary hammer by utilizing its empty weight. Forcible pressing or thrusting is unnecessary. 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. Fig. 5 Selector Lever Undercover (1) Switching to "rotation + hammering" (a) Pull the selector lever, release lock and turn it clockwise. (b) Align ▲ of the selector lever with ▲ on the side of the undercover as illustrated in Fig. 6. (c) Push in the selector lever to lock it. ▲ ▲ Fig. 6 NOTE: Turn the selector lever (do not pull it up) to check if it is completely locked and make sure that it does not turn. 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". 12

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12
English
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 firmly during operation.
2.
How to chisel or crush (Fig. 5)
By applying the tool tip to the chiseling
or crushing position, operate the rotary
hammer by utilizing its empty weight.
Forcible pressing or thrusting is
unnecessary.
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) Pull the selector lever, release lock
and turn it clockwise.
(b) Align
▲
of the selector lever with
▲
on the
side of the undercover as
illustrated in Fig. 6.
(c)
Push in the selector lever to
lock it.
NOTE:
Turn the selector lever (do not pull it up) to check if it is completely locked and make
sure that it does not turn.
4.
When chipping and shredding 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 positon of “hammering”.
Fig. 5
Fig. 6
Selector Lever
Undercover
▲
▲