Maintenance and Inspection, Modifications

English

3.Selection of blades for other materials Table 3

Meterial	Material	Thickness	Blade No.
to be cut	quality	(mm)	Blade No.
to be cut	quality	(mm)
Iron plate	Mild steel	2.5 – 19	No. 1, 2, 101,
	plate		102, 103, 104,
			105, 106, 131,
			132
		Below 3.5	No. 3, 107,
			108
Nonferrous	Aluminium,	5 – 20	No. 1, 2, 101,
metal	Copper and		102, 103, 104,
	Brass		105, 106, 131,
			132
		Below 5	No. 3, 107,
			108
Systhetic	Phenol resin,	10 – 50	No. 1, 2, 4,
resin	Melamine		101, 102, 103,
	resin, etc.		104, 131, 132
		5 – 30	No. 3, 5, 8,
			105, 106, 107,
			108
Systhetic	Vinyl chloride,	10 – 60	No. 1, 2, 4,
	Acrylic resin,		101, 102, 103,
	etc.		104, 131, 132
		5 – 30	No. 3, 5, 8,
			105, 106, 107,
			108

MAINTENANCE AND INSPECTION

1.Inspecting the blade

Continued use of a dull or damaged blade will result in reduced cutting efficiency and may cause overloading of the motor. Replace the blade with a new one as soon as excessive 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. 27)

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 Numbers 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

Disassemble the brush caps with a slotted-head screwdriver. The carbon brushes can then be easily removed.

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 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 airborne noise and vibration The measured values were determined according to EN50144.

The typical A-weighted sound pressure level: 91 dB (A)

The typical A-weighted sound power level: 104 dB (A) Wear ear protection.

The typical weighted root mean square acceleration value: 16.8 m/s2