Bedienungsanleitung Makita SG 1250 (Seite 7 von 52) (Deutsch, Englisch, Holländisch, Dänisch, Französisch, Italienisch, Portugiesisch, Spanisch, Norwegisch)

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i) Support panels or any oversized workpiece

to minimize the risk of wheel pinching and

kickback. Large workpieces tend to sag under

their own weight. Supports must be placed under

the workpiece near the line of cut and near the

edge of the workpiece on both sides of the

wheel.

j) Use extra caution when making a “pocket

cut” into existing walls or other blind areas.

The protruding wheel may cut gas or water

pipes, electrical wiring or objects that can cause

kickback.

19. Before using a segmented diamond wheel, make

sure that the diamond wheel has the peripheral

gap between segments of 10 mm or less, only

with a negative rake angle.

Additional Safety Warnings:

20. Never attempt to cut with the tool held upside

down in a vise. This can lead to serious acci-

dents, because it is extremely dangerous.

21. Some material contains chemicals which may be

toxic. Take caution to prevent dust inhalation

and skin contact. Follow material supplier safety

data.

SAVE THESE INSTRUCTIONS.

WARNING:

DO NOT let comfort or familiarity with product

(gained from repeated use) replace strict adherence

to safety rules for the subject product. MISUSE or

failure to follow the safety rules stated in this instruc-

tion manual may cause serious personal injury.

FUNCTIONAL DESCRIPTION

CAUTION:

• Always be sure that the tool is switched off and

unplugged before adjusting or checking function on the

tool.

Shaft lock (Fig. 1)

CAUTION:

• Never actuate the shaft lock when the spindle is mov-

ing. The tool may be damaged.

Press the shaft lock to prevent spindle rotation when

installing or removing accessories.

Sighting (Fig. 2)

There are notches on the front and rear of the base. This

is helpful for an operator to follow a straight cutting line.

Adjusting the grooving or cutting depth (Fig. 3)

The depth of grooving or cutting can be adjusted in the

range of 0 through 30 mm.

Loosen and move the clamping screw so that the pointer

points to your desired depth graduation on the scale.

Then tighten the clamping screw firmly.

Switch action (Fig. 4)

CAUTION:

• Before plugging in the tool, always check to see that

the slide switch actuates properly and returns to the

“OFF” position when the rear of the slide switch is

depressed.

To start the tool, slide the slide switch toward the “I (ON)”

position. For continuous operation, press the front of the

slide switch to lock it.

To stop the tool, press the rear of the slide switch, then

slide it toward the “O (OFF)” position.

Electronic function

The tools equipped with electronic function are easy to

operate because of the following features.

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.

Soft start

Soft-start feature minimizes start-up shock, and makes

the tool start smoothly.

Overload protector

When the tool would be employed over the admissible

load, it will stop automatically to protect the motor and

wheel. When the load will come to the admissible level

again, the tool can be started automatically.

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.

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