Operation - Makita HR1840 Instruction Manual

1
► 1 . Dust cap
To remove the drill bit, pull the chuck cover down all the
way and pull the drill bit out.
2
► 1 . Bit 2. Chuck cover
To remove the dust cup set, hold the root of dust cup
and pull it out.
NOTE: If the cap comes off from the dust cup, attach
it with its printed side facing up so that groove on the
cap its in the inside periphery of the attachment.

OPERATION

CAUTION:
handle) and irmly hold the tool by both side grip
and switch handle during operations.
CAUTION:
1
piece is secured before operation.
Hammer drilling operation
CAUTION:
twisting force exerted on the tool/drill 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 irmly hold the tool by
both side grip and switch handle during opera-
tions. Failure to do so may result in the loss of control
of the tool and potentially severe injury.
Set the action mode changing knob to the
Position the drill 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 slipping 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 drill bit partially from the hole.
By repeating this several times, the hole will be cleaned
out and normal drilling may be resumed.
9 ENGLISH
Always use the side grip (auxiliary
Always make sure that the work-
There is tremendous and sudden
symbol.