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Hitachi DH40MR [6/58] English

English

5. Bolt placing operation with Chemical Anchor

(Rotation + Hammering)

6. Crushing (Hammering)

7. Groove digging and edging (Hammering)

8. Asphalt cutting (Hammering)

9. Scooping Work (Hammering)

10. Surface Roughing (Hammering)

11. Tamping (Hammering)

12. Syringe (for chip removal)

䡬 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

䡬 Drilling holes in concrete

䡬 Drilling anchor holes

(Standard socket

on the market)

(SDS max shank)

12.7 mm Chemical

Anchor Adaptor

19 mm Chemical

Anchor Adaptor

(1) Bull point

Overall length: 280, 400 mm

(1) Cold chisel

Overall length: 280, 400 mm

(1) Cutter

(1) Scoop

(2) Shank

(1) Bushing Tool

(2) Shank

(1) Rammer

150 × 150 mm

䡬 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) To attach the tool (SDS max shank), insert it into

the hole until it contacts the innermost end of the

hole as illustrated in Fig. 2.

If you continue to turn the tool with slight pressure,

you can feel a spot where there is a hitch. At that

spot, pull the grip to the direction of an arrow mark

and insert the tool all the way until it hits the

innermost end.

Releasing the grip reverts the grip and secures the

tool in place.

(3) Pull the tool to make sure it is locked completely.

(4) To remove the tool, fully pull the grip in the direction

of the arrow and pull out the tool.

5. Regulating the number of rotations and hammering

(Fig. 3)

This Rotary Hammer is equipped with a built-in

electronic control circuit that can adjust and regulate

the number of rotations and times of hammering.

This Rotary Hammer can be used by adjusting the

dial, depending upon the contents of operation,

such as boring holes into fragile materials, chipping,

centering, etc.

The scale ‘1’ of the dial is designed for a minimum

speed with the number of 240 rotations per minute

and 1320 times of blow per minute. The scale ‘6’

is designed for a maximum speed with the number

of 480 rotations per minute and 2650 times of blow

per minute.

CAUTION:

Do not adjust the dial during operation. Doing so

can result in injury because the Rotary Hammer

must be held by only one hand, disabling the steady

control of the Rotary Hammer.

HOW TO USE THE ROTARY HAMMER

1. How to drill holes (Fig. 4)

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

tip to the drilling position.

01e_dh40mr_e.p65 1/20/04, 2:13 PM7

Hitachi DH40MR [6/58] English

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