Hitachi WH18DSL - Инструкция по эксплуатации - Страница 15

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English

13

MAINTENANCE AND INSPECTION

1. Inspecting the driver bit

Using a broken bit or one with a worn out tip is dangerous because the bit
can slip. Replace it.

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 may 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. 12)

The motor employs carbon brushes which are consumable parts. Since and

excessively worn carbon brush can result in motor trouble, replace the

carbon brush with new ones when it becomes worn to or near the “wear

limit”. In addition, always keep carbon brushes clean and ensure that they

slide freely whthin the brush holders.

NOTE:

When replacing the carbon brush with a new one, be sure to use the Hitachi

Carbon Brush Code No. 999054.

5. Replacing carbon brushes

Take out the carbon brush by first removing the brush cap and then hooking

the protrusion of the carbon brush with a slotted head screw driver, etc., as

shown in 

Fig. 14

.

When installing the carbon brush, choose the direction so that the nail of the

carbon brush agrees with the contact portion outside the brush tube.  Then

push it in with a finger as illustrated in 

Fig. 15

.  Lastly, install the brush cap.

CAUTION:

Be absolutely sure to insert the nail of the carbon brush into the contact
portion outside the brush tube.  (You can insert whichever one of the two

nails provided.)

Caution must be exercised since any error in this operation can result in the

deformed nail of the carbon brush and may cause motor trouble at an early

stage.

6. Cleaning of the outside

When the impact driver is stained, wipe with a soft dry cloth or a cloth

moistened with soapy water. Do not use chloric solvents, gasoline or paint

thinner, as they melt plastics.

7. Storage

Store the impact driver in a place in which the temperature is less than 40°C,

and out of reach of children.

8. 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 a 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.

GUARANTEE

We guarantee Hitachi Power Tools in accordance with statutory/country specific

regulation. This guarantee does not cover defects or damage due to misuse,
abuse, or normal wear and tear. In case of complaint, please send the Power
Tool, undismantled, with the GUARANTEE CERTIFICATE found at the end of this

Handling instruction, to a Hitachi Authorized Service Center.

NOTE:

Due to HITACHI’s continuing program of reserch 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 EN60745 and declared in
accordance with ISO 4871.

Measured A-weighted sound power level: WH14DSL: 102 dB (A)

WH18DSL: 102 dB (A)

Measured A-weighted sound pressure level: WH14DSL: 91 dB (A)

WH18DSL: 91 dB (A)

Uncertainty KpA: 3 dB (A).

Wear ear protection.

Vibration total values (triax vector sum) determined according to EN60745.

Impact tightening of fasteners of the maximum capacity of the tool:

Vibration emission value 

a

h

 = WH14DSL: 18.8 m/s

2

WH18DSL: 18.8 m/s

2

Uncertainty K = WH14DSL: 3.7 m/s

2

WH18DSL: 3.7 m/s

2

WARNING

The vibration emission value during actual use of the power tool can differ
from the declared value depending on the ways in which the tool is used.

To identify the safety measures to protect the operator that are based on an

estimation of exposure in the actual conditions of use (taking account of all
parts of the operating cycle such as the times when the tool is switched off
and when it is running idle in addition to the trigger time).

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