Bedienungsanleitung Hitachi H 60 MR (Seite 7 von 52) (Deutsch, Englisch, Holländisch, Französisch, Italienisch, Portugiesisch, Spanisch)

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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. Installing Tools

CAUTION

Be sure to switch power OFF and disconnect the

plug from the receptacle to avoid serious trouble.

NOTE

When using tools such as bull points, cutters, etc.,

make sure to use the genuine parts designated by

our company.

(1) Clean the shank portion of the tool.

(2) As shown in Fig. 1, pull grip (A) in the direction of

A, and insert the tool into a hole of the front cap.

(3) Adjust the groove position while turning the tool, and

furthermore insert it until it hits the end of the hole.

(4) Return grip (A) to its original position, pull the tool

and make sure it is locked completely (Fig. 2).

5. Deciding Working Position of Tool

The tool can be turned every 30 degrees and can

be fixed at the position of 12 steps.

(1) As shown in Fig. 3, if the grip (A) is turned in the

direction of B in a state where the grip (B) is

pushed in the direction of A, the blade angle can

be changed freely to any desired position.

(2) Release grip (B) and turn the tool, and make sure

that it is locked completely.

6. Removing Tool

As shown in Fig. 1, pull grip (A), and pull out the

tool.

CAUTION

Be sure to grip the handle and side handle during

work. Do not hold by the grip (A) during work. If

you pull it by mistake, the bull point could jump out.

7. Move the side handle

The side handle can be fixed at any desired position;

360 degrees, and can also be fixed at any position

in the back-and-forth direction.

(1) Loosen the handle by turning the grip in the direction

of A as shown in Fig. 4.

(2) Adjust it to a position where vertical (up-and-down)

operation can be facilitated as illustrated in Fig. 5,

Fig. 6, and Fig. 7.

(3) Turn the grip in the direction of B and fix the

handle.

8. Select the number of strikes (applicable only to

H60MRV) (Fig. 8)

CAUTION: Do not make any adjustment of the dial

during operation. Holding the main

body with one hand can swing you

around, resulting in an injury.

This machine has an electronic controlled circuit

built-in, enabling stepless regulation of the number

of strikes. Make the most of this machine by

adjusting the dial according to the working contents;

chiseling, demolishing, or the quality of the material

to be chiseling or demolishing.

The scale ”1” of the dial is for the minimum speed

with 930 strikes per minute, and the scale ”6” is

for the maximum speed with 1650 strikes per minute.

HOW TO USE THE DEMOLITION HAMMER

(Fig. 9)

1. After placing the tip of the tool on concrete surface,

switch ON.

The switch can be turned ON if the trigger is pulled

and OFF when it is released.

If the stopper is pressed while the trigger for the

switch is pulled, even if your finger is released from

the trigger, the switch remains ON - convenient for

continuous operation.

To turn the switch OFF, pull the trigger again, and

then the stopper comes off.

2. By utilizing the empty weight of the machine and

by firmly holding the demolition hammer with both

hands, one can effectively control the subsequent

recoil motion.

Proceed at a moderate work-rate, the use of too

much force will impair efficiency.

CAUTION

After long time of use, the cylinder case becomes

hot. Therefore, be careful not to burn your hands.

GREASE REPLACEMENT

This machine is of fully oil sealed construction to protect

against dust incursion and to prevent lubricant leakage.

This machine can be used without grease replenishment

for an extended period of time. However, perform the

grease replacement to extend the service life. Replace

the grease as described below.

1. Grease Replacement Period

You should look at the grease when you change

the carbon brush (See item 4 in the section

MAINTENANCE AND INSPECTION).

Ask for grease replacement at the nearest Hitachi

Authorized Service Center.

In the case that you are forced to change the grease

by yourself, please follow the following points.

2. How to replace grease

CAUTION

Before replacing the grease, turn the power off and

pull out the plug from the receptacle.

(1) Remove the crank case cover and the crank cover

and wipe off the old grease inside (Fig. 10).

(2) Supply 80 g (the standard volume to cover the

connecting rod) of Hitachi Electric Hammer Grease

A in the crank case.

Standard number of strikes

Dial Number of strikes/min.

6 1650

5 1590

4 1460

3 1320

2 1110

1 930

01Eng_H60MR_WE 08/10/8, 12:246

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