Operation; Maintenance; Optional Accessories - Makita sg1250 Betriebsanleitung

ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
Installing or removing the diamond wheel
Removal (Fig. 5, 6 & 7)
Loosen and remove the bolt with the hex wrench.
Open the cover while holding the tool base with a hand
as shown in the figure.
NOTE:
• The tool base will open at a stroke by the spring force.
Rotate the diamond wheel while pressing the shaft lock
until it engages.
Remove the lock nut by rotating it counterclockwise with
the lock nut wrench.
Remove the diamond wheel and space rings.
Adjusting the groove width (the distance between
the two diamond wheels)
The width of grooving in the workpiece can be adjusted
by changing the number of the space rings as shown in
the table. (Fig. 8)
Installation (Fig. 9)
Determine the distance of the two blades according to
the table.
To install the diamond wheel, mount it carefully onto the
spindle, making sure that the direction of the arrow on
the surface of the diamond wheel matches the direction
of the arrow on the tool. Install space ring and lock nut.
Tighten the lock nut securely clockwise with the lock nut
wrench while pushing down the shaft lock.
Return the cover and the base to the original position and
tighten the bolt to secure them.
Front handle (Fig. 10 & 11)
1. The angle of installation of the front handle is
changeable.
• To change its position, loosen the two bolts on both
sides of the front handle with the hex wrench and move
the front handle to your desired position.
NOTE:
• When the handle cannot be moved easily, loosen the
bolts furthermore.
• To secure the handle, tighten the two bolts firmly.
2. The front handle can be shifted sideways.
• To shift it, loosen and remove the two bolts on both
sides of the front handle.
• Remove the cam and install it on the opposite side as
shown in the figure.
• Insert the longer bolt to the hole in the handle on the
side close to the installed cam and the shorter bolt on
the opposite side.
• Then tighten the two bolts firmly.
Connecting to vacuum cleaner (Fig. 12)
When you wish to perform cleaner operation, connect a
vacuum cleaner to your tool. Connect a hose of vacuum
cleaner to the dust nozzle.
NOTE:
• The dust nozzle can be rotated freely so that you can
use it at any angle according to your operation.
Hex wrench storage (Fig. 13)
When not in use, store the hex wrench as shown in the
figure to keep it from being lost.
8

OPERATION

CAUTION:
• Be sure to pull the tool when cutting a workpiece.
• Use this tool for straight line cutting only. Cutting curves
can cause stress cracks or fragmentation of the dia-
mond wheel resulting in possible injury to persons in
the vicinity.
• After operation, always switch off the tool and wait until
the wheel has come to a complete stop before putting
the tool down.
• Always use the front grip and firmly hold the tool by
both front grip and main handle during operations.
Adjust the front handle to appropriate position for your
work by referring to the "Front handle" in the section
"ASSEMBLY".
Hold the tool firmly with both hands. First keep the wheel
without making any contact with a workpiece to be cut.
Then turn the tool on and wait until the wheel attains full
speed.
The cut is made by pulling the tool toward you (not by
pushing away from you). Align the notch on the base with
your cutting line, push down the front handle gently until it
stops and then pull the tool slowly to perform a cut.
(Fig. 14)
Switch off the tool in the position posed when finishing a
cut. Raise the tool after the wheel comes to a complete
stop.
Remove the remaining portion between the two blade
passage by other appropriate tools.

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.
The tool and its air vents have to be kept clean. Regularly
clean the tool's air vents or whenever the vents start to
become obstructed. (Fig. 15)
Dressing diamond wheel
If the cutting action of the diamond wheel begins to
diminish, use an old discarded coarse grit bench grinder
wheel or concrete block to dress the diamond wheel. To
do this, tightly secure the bench grinder wheel or con-
crete block and cut in it.
To maintain product SAFETY and RELIABILITY, repairs,
carbon brush inspection and replacement, any other
maintenance or adjustment should be performed by Mak-
ita Authorized Service Centers, always using Makita
replacement parts.

OPTIONAL ACCESSORIES

CAUTION:
• These accessories or attachments are 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. Only use accessory
or attachment for its stated purpose.
If you need any assistance for more details regarding
these accessories, ask your local Makita service center.
• Diamond wheels