InFocus H 60KA manual HOW to USE the Demolition Hammer Fig, Grease Replacement, Modifications

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(3)Turn the stop lever and align the front cover mark with the stop lever mark to secure.

NOTE:

Remove in the reverse order to installation.

6. 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. 2.

(2)Adjust it to a position where vertical (up-and-down) operation can be facilitated as illustrated in Fig. 3, Fig. 4, and Fig. 5.

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

HOW TO USE THE DEMOLITION HAMMER (Fig. 6)

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 by both hands, you can effectively control the subsequent recoil motion.

Proceed at a moderate work-rate, the use of too much pushing force will impair efficiency.

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 authorized Hitachi 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)Disassemble the crank cover and thoroughly wipe off the old grease inside. (Fig. 7)

(2)Supply 60g (the standard volume to cover the connecting rod) of Hitachi Electric Hammer Grease A in the crank case.

(3)After replacing the grease, reassemble the crank cover securely. At this time, do not damage or lose the oil seal.

NOTE:

The Hitachi Electric Hammer Grease A is of the low viscosity type. When the grease is consumed, purchase from the authorized Hitachi Service Center.

MAINTENANCE AND INSPECTION

CAUTION

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

1.Inspecting the tool

Since use of a dull tool will degrade efficiency and cause possible motor malfunction, sharpen or replace the tool as soon as abrasion is noted.

2.Inspecting the mounting screws:

Regularly inspect all mounting screws and ensure that they are properly tightened. Should any of the screws be loose, retighten them immediately. Failure to do so could result in serious hazard.

3.Maintenance of the motor

The motor unit winding is the very “heart” of the power tool. Exercise due care to ensure the winding does not become damaged and/or wet with oil or water.

4.Inspecting the carbon brushes (Fig. 8)

The Motor employs carbon brushes which are consumable parts. When they become worn to or near the “wear limit”, it could result in motor trouble. When an auto-stop carbon brush is equipped, the motor will stop automatically. At that time, replace both carbon brushes with new ones which have the same carbon brush Number shown in the figure. In addition, always keep carbon brushes clean and ensure that they slide freely within the brush holders.

5.Replacing carbon brushes:

Loosen the set screw and remove the tail cover. Remove the brush caps and carbon brushes. After replacing the carbon brushes, do not forget to tighten the brush caps properly and install the tail cover.

6.Service parts list

A:Item No.

B:Code No.

C:No. Used

D:Remarks

CAUTION

Repair, modification and inspection of Hitachi Power Tools must be carried out by an Hitachi Authorized Service Center.

This Parts List will be helpful if presented with the tool to the Hitachi Authorized Service Center when requesting repair or other maintenance.

In the operation and maintenance of power tools, the safety regulations and standards prescribed in each country must be observed.

MODIFICATIONS

Hitachi Power Tools are constantly being improved and modified to incorporate the latest technological advancements.

Accordingly, some parts (i.e. code numbers and/or design) may be changed without prior notice.

NOTE

Due to HITACHI’s continuing program of research and development, the specifications herein are subject to change without prior notice.

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