ICON Enterprises H 70SD HOW to USE the Hammer, Grease Replacement, Maintenance and Inspection

English

(3)Clamp the accessory into place by bringing the retainer to the clamp position. To make sure that the accessory is properly mounted, pull on the accessory. (Fig. 2)

◯Mounting standard hexagonal shanks and retaining groove shanks without collars.

(1)Clean, then smear the accessory shank portion with grease or machine oil.

(2)Move the retainer to position A. Align the accessory shank portion so that its recessed portion is under clamp and seat the accessory, such as a bull point, a cutter, etc. in the hexagonal hole in the front cover (See Fig. 3).

(3)Clamp the accessory into place by bringing the retainer to clamp position B. To make sure that the accessory is properly mounted, pull on the

accessory. (Fig. 4)

NOTE:

When removing the accessory, such as a bull point, a cutter, etc, carry out the above procedures in reverse.

HOW TO USE THE HAMMER

1.Pull the trigger switch after applying the tip of the bit to the crushing position.

In some cases, it is necessary to thrust the tip of the bit against the crushing position forcibly in order to begin the striking motion.

This is not due to malfunction of the power tool. It means that the safe guard mechanism against no-load striking is working.

2.Operate this Demolition Hammer by utilizing its empty weight. The performance will not be better even if it is pressed or thrust forcibly against the work surface. Hold this Demolition Hammer with a force just sufficient to counteract the reaction. (Fig. 5)

GREASE REPLACEMENT

This Demolition Hammer is of full air-tight construction to protect against dust and to prevent lubricant leakage. Therefore, this Demolition Hammer can be used without lubrication for long periods. Replace the grease as described below.

Grease Replacement Period

After purchase, replace grease after every 6 months of usage. Ask for grease replacement at the nearest authorized service center.

MAINTENANCE AND INSPECTION

CAUTION:

Be sure to swith OFF and disconnect the attachment plug from the receptacle to avoid a serious accident.

1.Inspecting this Demolition Hammer

Since use of a dull accessory, such as a bull point, a cutter, etc. will degrade efficiency and cause possible motor malfunction, sharpen or replace with a new one 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.Inspecting the retainer (Fig. 1, Fig. 2, Fig. 3 and Fig. 4) The retainer may become loose due to excessive use. Always, pay attention to its proper functioning to securely hold the accessory shank portion. If any wear and tear is found, bring this Demolition Hammer to an authorized service center for maintenance service.

4.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.

5.Inspecting the carbon brushes (Fig. 6)

The Motor employs carbon brushes which are consumable parts. When they become worn to or near the “wear limit”, it results 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 Numbers shown in the Fig. 6. In addition, always keep carbon brushes clean and ensure that they slide freely within the brush holders.

6.Replacing carbon brushes:

Loosen the screws (Hexagon socket hd. bolt M4×12) of the cap covers, then remove the cap covers (Fig. 7). After removing the brush caps, the carbon brushes can be removed.

After replacing the carbon brushes, tighten the brush caps, then mount the cap covers securely.

7.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 it presented with the tool to the Hitachi Authorized Serivde 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.

Acccordingly, 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.

Information concerning vibration

The measured values were determined according to EN50144.

The typical weighted root mean square acceleration value: 14 m/s2

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