English

ASSEMBLY AND OPERATION

APPLICATIONS

The demolition hammer should be applied to demolishing concrete, chiseling concrete, grooving, bar cutting, and driving piles in installation of piping and wiring, sanitary facility installation, machinery installation, water supply and drainage work, interior jobs, harbor facilities and other civil engineering work.

PRIOR TO OPERATION

1.Power source

Ensure that the power source to be utilized conforms to the power source requirements specified on the nameplate of this demolition hammer.

2.Power switch

Ensure that the switch is in the OFF position. If the plug is connected to a receptacle while the switch is in the ON position, this demolition hammer will start operating immediately and can cause serious injury.

3.Extension cord

When the work area is remote from the power source, use an extension cord of sufficient thickness and rated capacity. The extension cord should be kept as short as practicable.

WARNING: Damaged cord must be replaced or repaired.

4.Check the receptacle

If the receptacle loosely accepts the plug, the receptacle must be repaired. Contact the nearest authorized service center for repair service.

If such a fautly receptacle is used, it may cause overheating, resulting in a serious hazard.

5.Confirming condition of the environment:

Confirm that the work site is placed under neat, clean conditions conforming to prescribed precautions.

6.Installing an accessory, such as a bull point, a cutter, etc.,

CAUTION: To prevent accidents, make sure to turn the switch off and disconnect the plug from the receptacle.

NOTE: When using accessories such as bull points, cutters, etc., make sure to use the genuine parts designated by our company.

10

Page 10
Image 10
Hitachi H 90SE instruction manual Assembly and Operation, Applications, Prior to Operation