Makita DHR400 Instruction Manual page 9

Hammering only
For chipping, scaling or demolition operations, rotate
the action mode changing knob to the
bull point, cold chisel, scaling chisel, etc.
1
2
► 1 . Pointer 2. Action mode changing knob
Torque limiter
NOTICE:
As soon as the torque limiter actuates,
switch off the tool immediately. This will help pre-
vent premature wear of the tool.
NOTICE:
Drill bits such as hole saw, which tend
to pinch or catch easily in the hole, are not appro-
priate for this tool. This is because they will cause
the torque limiter to actuate too frequently.
The torque limiter will actuate when a certain torque
level is reached. The motor will disengage from the
output shaft. When this happens, the drill bit will stop
turning.
Constant speed control
Electronic speed control for obtaining constant speed.
Possible to get fine finish, because the rotating speed is
kept constant even under load condition.
ASSEMBLY
CAUTION:
Always be sure that the tool is
switched off and the battery cartridge is removed
before carrying out any work on the tool.
Side handle
symbol. Use a
chipping, scaling or demolishing. Do not use it
when drilling in concrete, masonry, etc. The tool
cannot be held properly with this side handle when
drilling.
► 1 . Side handle 2. Clamp nut
The side handle can be swung 360° on the vertical
and secured at any desired position. It also secures
at eight different positions back and forth on the hori-
zontal. Loosen the clamp nut to swing the side handle
to a desired position, and then tighten the clamp nut
securely.
Side grip (auxiliary handle)
safe operation.
side grip, make sure that the side grip is firmly
secured.
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.
9 ENGLISH
CAUTION:
Use the side handle only when
1
2
CAUTION:
Always use the side grip to ensure
CAUTION:
After installing or adjusting the