Drilling And Driving-In Operations For Anchors - Hitachi DH 40MA Mode D'emploi

(1) Switching to "rotation + striking"
(a) Pull the selector lever, release lock and turn it
clockwise.
(b) Align of the selector lever with
side of the undercover as illustrated in Fig. 5.
(c) Return the selector lever at the position of (b)
and lock it.
NOTE:
Turn the selector lever (do not pull it up) to see
if it is completely locked and make sure that it does
not turn.
4. When chipping and shredding at "striking":
CAUTION:
If the selector lever is switched during motor rotation,
the tool can start to rotate abruptly, resulting in
unexpected accidents.
selector lever when the motor is at a complete stop.
If the chipper and shredder are used at the position
of "rotation + striking", the tool can start to rotate,
resulting in unexpected accidents. Make sure that
they are used at the position of "striking".
(1) Switching to "striking"
(a) Pull the selector lever, release lock and turn it
counterclockwise.
(b) Align of the selector lever with
side of the undercover as illustrated in Fig. 6.
(c) Return the selector lever at the position of (b)
and lock it.
NOTE:
Turn the selector lever (do not pull it up) to see
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) Pull the selector lever, release lock and turn it.
Align of the selector lever and
undercover as illustrated in Fig. 7.
(b) Return the selector lever at the position of (a)
and lock it.
(c) Turn the grip as illustrated in Fig. 8 and fix the
working position of the tool.
(d) Switch the selector lever to "striking" according
to the procedures mentioned in the above item
(1) and secure the position of the tool.
5. Install the stopper (Fig. 9)
(1) Loosen the side handle and insert the straight portion
of the stopper into the handle bolt hole.
(2) Move the stopper to the specified position and
rotate the grip of the side handle clockwise to fix
the stopper.
6. Warming up (Fig. 10)
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.
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.
on the
Make sure to switch the
on the
of the
DRILLING AND DRIVING-IN OPERATIONS
FOR ANCHORS
1. When a taper shank adapter is used. (Fig. 11)
(1) Install drill bit with taper shank in the taper shank
adapter.
(2) Turn the power on and drill a base hole to the depth
sounded by indicating groove on the drill bit.
(3) After cleaning out dust with a syringe, attach the
plug to the anchor tip and drive in the anchor with
a manual hammer.
(4) To remove the drill bit (taper shank), insert the
cotter into the slot of the taper shank adapter and
strike the head of the cotter with a manual hammer
supporting on a rest. (Fig. 12)
USING DRILL CHUCK, CHUCK ADAPTER
Note that this machine can be used at "rotation only"
if separately sold parts such as drill chuck and chuck
adapter are attached.
positioned at "rotation + striking".
CAUTION:
During operation, be sure to grip the handle and
the side handle firmly to prevent your body from
swaying.
(1) Switching to "rotation + striking"
For switching to "rotation + striking", follow the
same procedures mentioned in [3. When drilling
at "rotation + striking"].
(2) Attaching chuck adapter to drill chuck (Fig. 13)
(a) Attach the chuck adapter to the drill chuck.
(b) The SDS max shank of the chuck adapter is
equivalent to the drill bit. Therefore, follow the
same procedure as [How to install tool] for
attaching and detaching.
(3) Drilling
(a) Even if you apply more-than-required pressure
to the machine body, drilling can never be
performed as quickly as you expect. Applying
more force or pressure to the machine body
than what is needed, on the contrary, damages
the drill tip, resulting in the declined working
efficiency and shortened life of this machine.
(b) A drill can snap sometimes when drilling is
almost finished.
thrusting pressure when drilling is nearing the
end.
HOW TO HANDLE A CORE BIT
When a core bit is used, large diameter holes and blind
holes can be drilled. In this case, use optional
accessories for core bits (such as a center pin and core
bit shank) for more efficient operation.
1. Mounting
CAUTION
Prior to mounting a core bit, always disconnect the
plug from the power supply receptacle.
(1) Mount the core bit on the core bit shank. (Fig. 14)
Before that, feed oil to the screw portion of core
bit shank for easy dismounting.
(2) Mount the core bit shank on the main body in the
same manner as in mounting the drill bit and the
bull point. (Fig. 15)
English
Use it with the selector lever
It is important to relax your
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