Bedienungsanleitung Hitachi DH40YB (Seite 8 von 38) (Deutsch, Englisch, Holländisch, Französisch, Italienisch, Spanisch)

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⅜ Asphalt cutting (striking)

⅜ Syringe (for chip removal)

⅜ Hammer grease A

500 g (in a can)

30 g (in a green tube)

Optional accessories are subject to change without

notice.

(1) Cutter

(3) Insert the drill bit until it hits the end of the hole,

and make sure that the dust cup is not in contact

with the tool holder. If the dust cup is found to

be in contact with the tool holder, shift it a little

forward.

HOW TO USE THE HAMMER DRILL

1. How to drill holes (Fig. 5)

(1) Pull the switch trigger after applying the drill bit

tip to the drilling position.

(2) It is unnecessary to forcibly press the hammer drill

main body. It is sufficient to slightly press the

hammer drill 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 firmly during operation.

2. How to chip or crush (Fig. 6)

By applying the drill bit tip to the chipping or

crushing position, operate the hammer drill by

utilizing its own weight.

Forcible pressing or thrusting is unnecessary.

3. How to select rotation-striking and striking.

(1) Rotation-striking (Fig. 7)

Rotate the selector lever clockwise so that the

▲ mark on the selector lever is aligned with the

▲ mark on the side of the

mark on the under

cover.

(2) Striking (Fig. 8)

Rotate the selector lever counterclockwise so that the

▲ mark on the selector lever is aligned with the ▲

mark on the side of the

mark on the under cover.

CAUTION

Turning the selector lever during motor rotation will

rotate the tool accidentally. The selector lever should

only be turned when the motor is stopped.

4. 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 side handle clockwise to fix the stopper.

5. 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 unit securely with

both hands to maintain a secure grip and avoid

being turned around by the drill.

DRILLING AND DRIVING-IN OPERATIONS

FOR ANCHORS

Use the optional accessories for anchors, such as anchor

adapter and taper shank adapter.

APPLICATIONS

⅜ Drilling holes in concrete

⅜ Drilling anchor holes

⅜ 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 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 sufficient 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

provided in the green tube (Fig. 1).

(2) The grip can be rotated manually at an 60° angle.

Fully turn the grip in the direction of the arrow A

as shown in Fig. 2 so that the

mark on the

grip is aligned with the

mark on the front

sleeve. (Fig. 2)

(3) Insert the shank of the tool until it makes contact

with the back side of the hole. (Fig. 2)

(4) Turn the grip in the direction of “Lock ” so that

the

mark on the grip is aligned with the

mark on the front sleeve. The tool is locked.

Remove the drill bit in the reverse order. (Fig. 2)

5. Fixing Dust cup

When a worker is engaged in an operation with the

main body faced upward, if a dust cup is fixed to

a drill bit, the inside of a tool holder can be prevented

from any possible invasion of dust. The dust cup

should be fixed as explained below.

(1) Insert the dust cup into the drill bit. (Fig. 3)

(2) Fix the drill bit to the tool holder. (Fig. 4)

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