Manual Hikoki C1806DA (page 14 of 236) (All languages)

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MAINTENANCE AND INSPECTION

1. Inspecting the saw blade

Since use of as dull saw blade will degrade eﬃ ciency

and cause possible motor malfunction, sharpen or

replace the saw blade 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 carbon brushes (Fig. 22)

The motor employs carbon brushes which are

consumable parts. Since an excessively worn carbon

brush can result in motor trouble, replace the carbon

brushes with new ones having the same carbon brush

No. ⓐ shown in the ﬁ gure when it becomes worn to or

near the “wear limit” ⓑ. In addition, always keep carbon

brushes clean and ensue that they slide freely within the

brush holders.

CAUTION

When replacing the new carbon brushes, always use

genuine HiKOKI carbon brushes with the number

speciﬁ ed in the drawing.

4. Replacing carbon brushes

Disassemble the brush caps with a slotted-head

screwdriver. The carbon brushes can then be easily

removed.

5. Motor unit maintenance

The motor winding is an important part of this tool. Avoid

damaging and be careful to avoid contact with cleaning

oil or water.

After 50 hours of use, clean the motor by blowing into the

ventilation holes of the motor housing with dry air from an

air gun or other tool (Fig. 25).

Dust or particle accumulation in the motor can result in

damage.

6. Inspecting and maintaining the lower guard

Always make sure that the lower guard moves smoothly.

In the event of any malfunction, immediately repair the

lower guard.

For cleaning and maintenance, use an air gun or other

tool to blow clean the space between the lower guard

and gear cover as well as the rotation part of the lower

guard with dry air (Fig. 25).

Doing so is eﬀ ective for the emission of chips or other

particles.

Accumulation of chips or other particles around the lower

guard may result in malfunction or damage.

WARNING

To prevent dust inhalation or eye irritation, wear

protective safety goggles and a dust mask when

using an air gun or other tool to clean the lower guard,

ventilation holes or other parts of the product.

Ensure smooth movement

of lower guard

Rotation part of

the lower guard

Housing vent

Space between

lower guard

and gear cover Air gun

Fig. 25

7. Cleaning the inside of the saw cover

Regularly check and clean to make sure that sawdust

and other residue do not collect inside of the saw cover.

Always remove the saw blade when checking and

cleaning.

Washer (A)

Spindle

Saw cover

Fig. 26

8. Inspection of terminals (tool and battery)

Check to make sure that swarf and dust have not

collected on the terminals.

On occasion check prior, during and after operation.

CAUTION

Remove any swarf or dust which may have collected on

the terminals.

Failure to do so may result in malfunction.

9. Cleaning on the outside

When the power tool is stained, wipe with a soft dry cloth

or a cloth moistened with soapy water. Do not use chloric

solvents, gasoline or paint thinner, for they melt plastics.

10. Storage

Storing in a place below 40°C and out of the reach of

children.

NOTE

Storing lithium-ion batteries.

Make sure the lithium-ion batteries have been fully

charged before storing them.

Prolonged storage (3 months or more) of batteries with

a low charge may result in performance deterioration,

signiﬁ cantly reducing battery usage time or rendering

the batteries incapable of holding a charge.

However, signiﬁ cantly reduced battery usage time may

be recovered by repeatedly charging and using the

batteries two to ﬁ ve times.

If the battery usage time is extremely short despite

repeated charging and use, consider the batteries dead

and purchase new batteries.

CAUTION

In the operation and maintenance of power tools, the

safety regulations and standards prescribed in each

country must be observed.

Important notice on the batteries for the HiKOKI

cordless power tools

Please always use one of our designated genuine

batteries. We cannot guarantee the safety and

performance of our cordless power tool when used with

batteries other than these designated by us, or when

the battery is disassembled and modiﬁ ed (such as

disassembly and replacement of cells or other internal

parts).

00BookC1806DAEU.indb1400BookC1806DAEU.indb14 2022/06/1416:37:302022/06/1416:37:30

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Hikoki C1806DA Manual

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