Prior To Operation - Hitachi DH 50SA1 Bedienungsanleitung

Syringe (for chip removal):
Hammer grease A:
500 g (in a can)
30 g (in a green tube)
Optional accessories are subject to change without notice.
APPLICATIONS
Drilling holes in concrete
Drilling anchor holes
Crushing concrete, chipping, digging, and squaring
(by applying optional accessories)

PRIOR TO OPERATION

1. Power source
Ensure that the power source to be utilized conforms
to the power requirements specified on the product
nameplate.
2. Power switch
Ensure that the power switch is in the OFF position.
If the plug is connected to a receptacle while the
power switch is in the ON position, the power tool
will start operating immediately, which could cause
a serious accident.
3. Extension cord
When the work area is removed from the power
source, use an extension cord of sufficient thickness
and rated capacity. The extension cord should be
kept as short as practicable.
4. How to install dust cover (Fig. 1)
Always install the dust cover in the drill bit or the
taper shank adapter.
Insert the dust cover until it lies flush in the groove.
NOTE
For a thick drill bit, insert the dust cover from drill
rear.
5. How to install tool
NOTE
For tools such as a bull point and a cold chisel,
use only HITACHI genuine parts.
(1) Clean, the smear the tool shank with the grease
provided in the orange tube.
(2) Slide the tool holder in the direction of arrow A
and rotate it 180˚.
Turn the notch of the tool shank downward and
insert it fully into the hexagonal hole of the front
cover. (Fig. 2)
(3) Turn the tool holder and align the front cover mark
with the tool holder mark to secure.
NOTE
Remove in the reverse order of installation.
HOW TO USE THE ROTARY HAMMER
1. How to drill holes (Fig. 3)
(1) Use the side handle or the Bar type handle.
Do not use D type handle during drilling operation,
since it may not be enough to hold the body firmly.
(2) Pull the switch trigger after applying the drill bit
tip to the drilling position.
(3) It is unnecessary to forcibly press the rotary hammer
main body. It is sufficient to slightly press the rotary
hammer to an extent that chips 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 the bar type handle
are gripped firmly during operation.
2. How to chip or crush (Fig. 4)
(1) Use the Side handle or the D type handle.
(2) By applying the Bull point tip to the chipping or
crushing position, operate the rotary hammer by
utilizing its own weight. Forcible pressing or thrusting
is unnecessary.
3. How to use stopper (Fig. 5)
Install the stopper
(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 side handle
clockwise to fix the stopper.
4. When K-Taper shank adapter is used (Fig. 6)
(1) Install drill bit with taper shank in the K-Taper shank
adapter.
(2) Turn the power on and drill a base hole to the depth
sounded by the indicating groove on the drill bit.
(3) After cleaning out dust with the syringe, attach the
plug to the anchor tip and drive in the anchor with
a hand hammer.
(4) To remove the drill bit with taper shank, insert a
cotter into the slot of the K-Taper shank adapter,
place supports under the drill and tap the cotter
with a hand hammer. (Fig. 7)
HOW TO HANDLE A CORE BIT
When a core bit is used, large caliber holes and blind holes
can be drilled. In this case, use optional accerssories for
core bits (such as a center pin and core bit shank) for a
more rational operation.
1. Mounting
CAUTION
Prior to mounting a core bit, always disconnect the
plug from the receptacle.
(1) Mount the core bit on the core bit shank. (Fig. 8)
Before that, feed oil to the screw portion of core
bit shank for easily dismount.
English
8