Makita HM0870C, HM0871C Assembly, Speed change, Side handle auxiliary handle, Indicator lamp

Speed change

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1. Adjusting dial

The green power-ON indicator lamp lights up when the tool is plugged. If the indicator lamp does not light up, the mains cord or the controller may be malfunction. The indicator lamp is lit but the tool does not start even if the tool is switched on, the carbon brushes may be worn out, or the controller, the motor or the ON/OFF switch may be malfunction.

The red service indicator lamp flickers up when the carbon brushes are nearly worn out to indicate that the tool needs servicing. After approx. 8 hours of use, the motor will automatically be shut off.

The blows per minute can be adjusted just by turning the adjusting dial. This can be done even while the tool is running. The dial is marked 1 (lowest speed) to 5 (full speed).

Refer to the table below for the relationship between the number settings on the adjusting dial and the blows per minute.

Number on adjusting dial	Blows per minute
5	2,650
4	2,400
3	1,750
2	1,300
1	1,100

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CAUTION:

•The speed adjusting dial can be turned only as far as 5 and back to 1. Do not force it past 5 or 1, or the speed adjusting function may no longer work.

For Model HM0871C only

NOTE:

• Blows at no load per minute becomes smaller than

ASSEMBLY

CAUTION:

•Always be sure that the tool is switched off and unplugged before carrying out any work on the tool.

Side handle (auxiliary handle)

1. Side grip (auxiliary handle)

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The side grip swings around to either side, allowing easy handling of the tool in any position. Loosen the side grip by turning it counterclockwise, swing it to the desired position and then tighten it by turning clockwise.

Installing or removing the bit

those on load in order to reduce vibration under no

load, but this does not show trouble. Once

operation starts with a bit against concrete, blows

per minute increase and get to the numbers as

shown in the table. When temperature is low and

there is less fluidity in grease, the tool may not

have this function even with the motor rotating.

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1.Bit shank

2.Bit grease

Indicator lamp

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1.Power-ON indicator lamp (green)

2.Service indicator lamp (red)

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Clean the bit shank and apply bit grease before installing the bit.

Insert the bit into the tool. Turn the bit and push it in until it engages.

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