Makita HR2445, HR2455 MAINTENANCE

Use the optional drill chuck assembly. When installing it, refer

to “Installing or removing drill bit” described on the previous

page.

Set the action mode changing knob to the symbol. You

can drill up to 13 mm(1/2”) diameter in metal and up to

32 mm(1-1/4”) diameter in wood.

CAUTION:

•Never use “rotation with hammering” when the drill

chuck assembly is installed on the tool. The drill chuck

assembly may be damaged.

Also, the drill chuck will come off when reversing the tool.

•Pressing excessively on the tool will not speed up the

drilling. In fact, this excessive pressure will only serve to

damage the tip of your bit, decrease the tool

performance and shorten the service life of the tool.

•There is a tremendous twisting force exerted on the tool/

bit at the time of hole breakthrough. Hold the tool firmly

and exert care when the bit begins to break through the

workpiece.

•A stuck bit can be removed simply by setting the

reversing switch to reverse rotation in order to back out.

However, the tool may back out abruptly if you do not

hold it firmly.

•Always secure small workpieces in a vise or similar hold-

down device.

•When performing diamond core drilling operations,

always set the change lever to the position to use

“rotation only” action. If performing diamond core drilling

operations using “rotation with hammering” action, the

diamond core bit may be damaged.

MAINTENANCE CAUTION:

•Always be sure that the tool is switched off and

unplugged before attempting to perform inspection or

maintenance.

To maintain product SAFETY and RELIABILITY, repairs, car-

bon brush inspection and replacement, any other mainte-

nance or adjustment should be performed by Makita

Authorized or Factory Service Centers, always using Makita

replacement parts.

1. Drill chuck assembly

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