Hitachi H 90SB instruction manual Application, Prior to Operation

Page 7

OPTIONAL ACCESSORIES…sold separately

1.Bull point

 

Overall length:

20-15/32”(520 mm)

 

Code No.:

985230

2.

Cold chisel

 

 

Overall length:

20-15/32” (520 mm)

 

Code No.:

985231

3.

Scoop

 

 

Overall length:

21-1/2” (546 mm)

 

Code No.:

985233

4.

Cutter

 

 

Overall length:

20-15/32” (520 mm)

 

Width:

2-15/16” (75 mm)

 

Code No.:

985232

APPLICATION

This demolition hammer should be applied to breaking concrete, chipping off 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, etc.

PRIOR TO OPERATION

1.Power source

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

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, this demolition hammer will start operating immediately, inviting serious accident.

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.

4.Confirm the power receptacle

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

If such a faulty 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.Mounting an accessory, such as a bull point, a cutter, etc..

(1)With the retainer directed backward, insert the accessory shank portion into the hole on the front cover. (Fig. 2)

(2)Swing the retainer back into place so that it engages the accessory shank portion and prevents accessories from coming out of front cover. (Fig. 3)

6

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Contents Demolition Hammer Model H 90SB Page Page Polarized Plugs Service and RepairsDouble Insulation System Enhances Safe Operation Particular Precautions on Demolition HammerName of Parts SpecificationsAccessories Standard AccessoriesPrior to Operation ApplicationInspecting this demolition hammer HOW to Replace GreaseMaintenance and Inspection OperationReplacing a carbon brush Inspecting the mounting screwsInspecting the retainer Inspecting the carbon brushes FigPage Part Name Roll Pin D6 ⋅ Lever Pin Bolt Itachi Koki Canada Co