Manual Makita UH420D (page 8 of 64) (English, German, Dutch, Danish, French, Italian, Portuguese, Turkish, Spanish)

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into place. Insert it all the way until it locks in place with a

little click. If you can see the red indicator on the upper

side of the button, it is not locked completely.

CAUTION:

• Always install the battery cartridge fully until the red

indicator cannot be seen. If not, it may accidentally fall

out of the tool, causing injury to you or someone

around you.

• Do not install the battery cartridge forcibly. If the

cartridge does not slide in easily, it is not being inserted

correctly.

Battery protection system

The tool is equipped with a battery protection system. This

system automatically cuts off power to the motor to extend

battery life.

The tool will automatically stop during operation if the tool

and/or battery are placed under one of the following

conditions:

• Overloaded:

The tool is operated in a manner that causes it to

draw an abnormally high current.

In this situation, release the switch trigger on the tool

and stop the application that caused the tool to

become overloaded. Then pull the switch trigger

again to restart.

If the tool does not start, the battery is overheated. In

this situation, let the battery cool before pulling the

switch trigger again.

• Low battery voltage:

The remaining battery capacity is too low and the tool

will not operate. If you pull the switch trigger, the

motor runs again but stops soon. In this situation,

remove and recharge the battery.

Switch action

CAUTION:

• Before inserting the battery cartridge into the tool,

always check to see that the switch trigger actuates

properly and returns to the “OFF” position when

released.

For your safety, this tool is equipped with a dual switching

system. To turn on the tool, press the lock-off button and

triggers A and B. Release either one of the two pressed

triggers to turn off. The sequence of switching is

unimportant as the tool only starts when both switches are

activated. (Fig. 2)

Indication lamp (Fig. 3)

Running the tool allows the indication lamp to show the

battery cartridge capacity status.

When the tool is also overloaded and has stopped during

operation, the lamp lights up in red.

Refer to the following table for the status and action to be

taken for the indication lamp.

Note 1: The time at which the indication lamp lights up varies by the temperature around the work area and the battery

cartridge conditions.

010970

OPERATION

CAUTION:

• Be careful not to accidentally contact a metal fence or

other hard objects while trimming. The blade will break

and may cause serious injury.

• Overreaching with a hedge trimmer, particularly from a

ladder, is extremely dangerous. Do not work from

anything wobbly or infirm.

Do not attempt to cut branches thicker than 10 mm

diameter with this trimmer. These should first be cut with

shears down to the hedge trimming level. (Fig. 4)

CAUTION:

• Do not cut off dead trees or similar hard objects. Failure

to do so may damage the tool.

Hold the trimmer with both hands and pull the switch

trigger A or B and then move it in front of your body.

(Fig. 5)

As a basic operation, tilt the blades towards the trimming

direction and move it calmly and slowly at the speed rate

of 3 - 4 seconds per meter. (Fig. 6)

To cut a hedge top evenly, it helps to tie a string at the

desired hedge height and to trim along it, using it as a

reference line. (Fig. 7)

Attaching the chip receiver (optional accessory) on the

tool when trimming the hedge straight can avoid cut off

leaves’ being thrown away. (Fig. 8)

To cut a hedge side evenly, it helps to cut from the bottom

upwards. (Fig. 9)

Trim boxwood or rhododendron from the base toward the

top for a nice appearance and good job. (Fig. 10)

Installing or removing chip receiver

(optional accessory)

CAUTION:

• Always be sure that the tool is switched off and

unplugged before installing or removing chip receiver.

Indication lamp Status Action to be taken

The lamp blinks in red.

This indicates the appropriate time to

replace the battery cartridge when the

battery power becomes low.

Recharge the battery cartridge as soon

as possible.

The lamp lights up in red. (Note 1)

This function works when the battery

power is almost used up. At this time,

tool stops immediately.

Recharge the battery cartridge.

The lamp lights up in red. (Note 1) Autostop due to overload. Turn off the tool.

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Makita UH420D Manual

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