Makita HR2400 instruction manual Operation, Dust cup optional accessory, Hammer drilling operation

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1. Dust cup

Dust cup (optional accessory)

Use the dust cup to prevent dust from falling over the tool and on yourself when performing overhead drilling opera- tions. Attach the dust cup to the bit as shown in the figure. The size of bits which the dust cup can be attached to is as follows.

Bit diameter

Dust cup 5 6 mm (1/4”) - 14.5 mm (9/16”)

Dust cup 9 12 mm (15/32”) - 16 mm (5/8”)

OPERATION

Hammer drilling operation

Set the action mode changing knob to the symbol.

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Position the bit at the desired location for the hole, then pull the switch trigger. Do not force the tool. Light pressure gives best results. Keep the tool in position and prevent it from slip- ping away from the hole.

Do not apply more pressure when the hole becomes clogged with chips or particles. Instead, run the tool at an idle, then remove the bit partially from the hole. By repeating this sev- eral times, the hole will be cleaned out and normal drilling may be resumed.

CAUTION:

•There is a tremendous and sudden twisting force exerted on the tool/bit at the time of hole break-through, when the hole becomes clogged with chips and particles, or when striking reinforcing rods embedded in the concrete. Always use the side grip (auxiliary handle) and firmly hold the tool by both side grip and switch handle during operations. Failure to do so may result in the loss of control of the tool and potentially severe injury.

Blow-out bulb (optional accessory)

After drilling the hole, use the blow-out bulb to clean the dust out of the hole.

1. Blow-out bulb

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