Operation; Maintenance - Makita M8700 Instruction Manual

NOTE:
The depth gauge cannot be used at the position
•
where the depth gauge strikes against the gear
housing/motor housing.

OPERATION

Always use the side grip (auxiliary handle) and firmly
hold the tool by both side grip and switch handle during
operations.
Hammer drilling operation
Fig.9
Set the action mode changing knob to the
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 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 bit partially from the hole. By
repeating this several times, the hole will be cleaned out
and normal drilling may be resumed.
Set the action mode changing knob to the
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.
NOTE:
Eccentricity in the bit rotation may occur while operating
the tool with no load. The tool automatically centers
itself during operation. This does not affect the drilling
precision.
Drilling in wood or metal
Fig.10
Use the optional drill chuck assembly. When installing it,
refer to the section "Installing or removing the bit".
CAUTION:
Never use "rotation with hammering" when the drill
•
chuck is installed on the tool. The 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,
symbol.
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.

MAINTENANCE

symbol.
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 Service Centers, always using Makita
replacement parts.
6
position to use