Maintenance; Optional Accessories - Makita HR2621 Instruction Manual

Drilling in wood or metal
1
2
014502
Use the optional drill chuck assembly. When installing it,
refer to "Installing or removing the bit" described on the
previous page.
CAUTION:
Never use "rotation with hammering" when the
•
quick change drill chuck is installed on the tool.
The quick change drill chuck 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.
Diamond core drilling
When performing diamond core drilling operations,
always set the change lever to the
"rotation only" action.
CAUTION:
If performing diamond core drilling operations
•
using "rotation with hammering" action, the
diamond core bit may be damaged.
1. Chuck adapter
2. Keyless drill
chuck
position to use
10
Operation when using the dust cup
(optional accessory)
1
010736
Operate the tool with the dust cup against the ceiling
surface.
NOTE:
The dust cup is intended only for drilling in the
•
ceramic workpiece such as concrete and mortar.
Do not use the tool with the dust cup when drilling
in metal or similar. Using the dust cup for drilling in
the metal may damage the dust cup due to the
heat produced by small metal dust or similar.
Empty the dust cup before removing a drill bit.
•
When using the dust cup, make sure that the dust
•
cap is mounted on it securely.

MAINTENANCE

CAUTION:
Always be sure that the tool is switched off and
•
unplugged before attempting to perform inspection
or maintenance.
Never use gasoline, benzine, thinner, alcohol or the
•
like. Discoloration, deformation or cracks may result.
To maintain product SAFETY and RELIABILITY, repairs,
carbon brush inspection and replacement, any other
maintenance or adjustment should be performed by
Makita Authorized or Factory Service Centers, always
using Makita replacement parts.

OPTIONAL ACCESSORIES

CAUTION:
These accessories
•
recommended for use with your Makita tool
specified in this manual. The use of any other
accessories or attachments might present a risk of
injury to persons.
attachment for its stated purpose.
If you need any assistance for more details regarding
these accessories, ask your local Makita Service Center.
SDS-Plus Carbide-tipped bits
•
Bull point
•
Cold chisel
•
1. Dust cap
or attachments
Only use accessory or
are