Bedienungsanleitung Hikoki DH40MEY2 (Seite 9 von 136) (Alle Sprachen)

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Using Continuous operation button

The Continuous operation button feature is only available

for “Hammering Mode ”. Pressing the Continuous

operation button with the switch trigger pulled back will

switch on a blue LED that indicates the activation of the

Continuous operation function which will keep the tool

running even after the trigger switch is released. (Fig. 8)

To cancel the function, press the Continuous operation

button again. (Fig. 9)

CAUTION

Never allow magnets (or similar magnetic devices) to be

adjacent tool body, because this product has a magnetic

sensor inside. Doing so will cause a failure or risk of

injury by malfunction.

ABOUT THE PROTECTION

FUNCTION

This tool has a built-in protection circuit for preventing

damage to the unit in the event of an abnormality. Depending

on the nature of the abnormality, the display lamp will ﬂ ash

as shown in Table 1 and the unit will cease to operate. In

such cases, verify the problem indicated by the ﬂ ashing and

take whatever steps are necessary to correct the problem.

NOTE

Repair may be required if the display lamp continues to

ﬂ ash after taking all necessary steps to correct the problem.

If the problem persists, please arrange for repairs.

Table 1

Display

lamp

ﬂ ashing Cause Solution

Flash

Internal temperature

has risen beyond

the unit’s speciﬁ ed

temperature.

(Temperature

increase protection

function)

Turn oﬀ the unit

and allow it to cool

down for about 15 to

30 minutes.

When the temperature

goes down, press the

rotation speed selector

switch to recover.

Flash Excessive pressure

applied to the tool

has resulted in an

overload.

(Overload

protection function)

Press the rotation

speed selector switch

to recover. Try to avoid

tasks that will apply

excess pressure to

the unit.

Flash

Tool is

connected to a

power source

whose voltage

is either too high

or too low.

Tool has shut

down due to a

voltage signal

read error that

occurred from

the unit’s power

cord being

plugged in and

out at short

intervals.

(Circuit protection

function)

Connect the unit

to a power supply

matching the input

voltage speciﬁ ed

on the nameplate.

Press the rotation

speed selector

switch to recover.

Allow for an interval

of 3 seconds

or more when

plugging the power

cord in and out.

Press the rotation

speed selector

switch to recover.

Flash Sensor signal read

error.

(Control monitoring

function)

Press the rotation

speed selector switch

to recover. Repair may

be required if this error

continuously occurs.

REACTIVE FORCE CONTROL

This product is equipped with a Reactive Force Control

(RFC) feature that reduces jerking of the tool body.

If the tool bit is suddenly overburdened, any jerking of the

tool body is reduced by activation of the slip clutch or by

stopping of the motor by the sensor built into the tool body.

If the motor is stopped because of overburdening detection

by the controller, the Display lamp will blink while the switch

is pulled. In addition, the lamp will continue blinking for

approximately three seconds after the switch is released.

The motor will remain stopped while the lamp is blinking.

(Fig. 16)

Because the RFC feature may not activate or its performance

may be insuﬃ cient depending on the working environment

and conditions, be careful not to suddenly overburden the

tool bit and hold power tool ﬁ rmly while operating.

● Possible causes of sudden overburdening

Tool bit biting into material

Impact against nails, metal or other hard objects

Tasks involving prying or any excess application of

pressure, etc.

Also, other causes include any combination of the

aforementioned.

● When the reactive force control (RFC) is triggered

When the RFC is triggered and the motor stops, turn

oﬀ the tool’s switch and remove the cause of the

overburdening before continuing operation.

Fig. 16

GREASE REPLACEMENT

This Rotary Hammer is of full air-tight construction to protect

against dust.

Therefore, this Rotary 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.

00BookDH40MEY2.indb900BookDH40MEY2.indb9 2023/06/1316:35:252023/06/1316:35:25

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