Prior To Operation; Drilling And Driving-In Operations For Anchors - Hitachi Koki DH 38SS Instrucciones De Manejo

English
○ Groove digging and edging (Hammering)
(1) Cold chisel
Overall length: 280, 450 mm
○ Asphalt cutting (Hammering)
(1) Cutter
○ Syringe (for chip removal)
○ Hammer grease A
500 g (in a can)
70 g (in a green tube)
30 g (in a green tube)
Optional accessories are subject to change without
notice.
APPLICATIONS
○ Drilling holes in concrete
○ Drilling anchor holes
○ Demolishing 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 specifi ed on the product
nameplate.
2. Power switch
Ensure that the power switch is in the OFF position.
If the plug is connected to a power 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 suffi cient thickness and rated
capacity. The extension cord should be kept as short as
practicable.
4. How to install tool
NOTE
For tools such as a bull point and a cold chisel, use only
Hitachi genuine parts.
(1) Clean, then smear the tool shank with the grease or
machine oil (Fig. 1).
(2) Press the push button, slightly lift the tool retainer in the
direction of arrow as shown in Fig. 2 to hook the tool
retainer edge with the push button and engage the push
button.
(3) Release your fi nger from the push button and further lift
the tool retainer in the direction of arrow
NOTE
First time when the tool retainer is lifted, remove your
fi nger from the push button. If the push button is kept
pressed, the edge of the tool retainer comes in contact
with your fi nger and the tool retainer cannot be lifted.
8
(4) Fully insert the tool shank into the hexagonal hole in the
front cover.
(5) Return the tool retainer to secure the tool.
(6) Pull the tool to make sure it is locked completely.
NOTE
Remove in the reverse order of installation.
WHEN THE PUSH BUTTON DOES NOT
OPERATE SMOOTHLY
When the push button does not operate smoothly, please
remove dirt from the inside through the outlet using a wire,
etc. Then lubricate lubricating oil and push the push button
several times to make it operate smoothly. (Fig. 3)
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. 4)
(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. 5)
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.
3. Warming up (Fig. 6)
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.
DRILLING AND DRIVING-IN OPERATIONS FOR
ANCHORS
Use the optional accessories for anchors, such as anchor
adapter and taper shank adapter.
1. When a rotation hammering anchor adapter is
used.
(1) Install the self-drilling anchor in the anchor adapter
(Fig. 7).
(2) Turn ON the switch and drill a base hole with the self-
drilling anchor. (Fig. 8)
At the start of the hole-drilling slightly tilt the rotary
hammer to determine the hole position.
.
(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) After driving in the anchor, use the drift key to separate
the anchor. (Fig. 9)