English

ASSEMBLY AND OPERATION

APPLICATIONS

Rotation and hammering function

Drilling anchor holes

Drilling holes in concrete Hammering function only

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 source requirements specified on the product nameplate.

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, the power tool will start operating immediately and can cause serious injury.

3.Extension cord

When the work area is far away from the power source, use an extension cord of sufficient thickness and rated capacity (refer to page 9). 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 only loosely accepts the plug, the receptacle must be repaired. Contact a licensed electrician to make appropriate repairs.

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 appropriate conditions conforming to prescribed precautions.

6.How to install tool

CAUTION: For tools such as a drill bit and a bull point, use only Hitachi genuine parts.

(1) Clean, then smear the tool shank with the grease provided in the green tube.

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Hitachi DH 50MB instruction manual Assembly and Operation, Applications, Prior to Operation