Nitto EMB-0307B, Instruction Manual

7

side facing the Plate D by adjusting the Head, but 

impossible on the upper side facing the Plate C. For 

making a radius tangential line cutting on the upper 

side, conduct in a following manner.

(1) Place the tool on workpiece with Plate C on upper 

surface of workpiece and Plate D on side surface, 

as indicated in Fig.9. Then, turn the Eccentric Ring 

to adjust the Indexable Inserts to cut properly side 

surface, and conduct the first cut. (see Fig.10)

(2) Next, placing Plate C onside surface and Plate D 

on upper surface, conduct the second cut.

(3) In this case, slight seam may be left in center of 

chamfered surface. (Fig.11)

Upper Surface

Side Surface

Plate C

Plate D

Fig.9

T

angential

Line

Side

First cut

Surface

Uppe Surface

R

Fig.10                                     Fig.11

5-9. How To operation the Dust Box

WARNING

● 

Be sure to turn the switch OFF and remove the 

power plug from power supply whenever setting 

up the tool.

● 

The Dust Box is much heated right after the 

operation. Always wear gloves in handling the 

Dust Box.

CAUTION

● 

Frequently throw away the chips in the dust box 

before pilling up. If the tool is operated with the 

dust box filled with the chips, it badly affects 

finishing surfaces shorten the life of Indexable 

Insert.

Hold the motor firmly, and throw away the chips by 

opening the lid. (Fig.12)

Chip

Fig.12

5-10. Restart Prevention Function

If the power is failed or the tool is accidentally 

unplugged from the power supply while in operation, 

the restart prevention function will be automatically 

activated when the power is restored. The restart 

prevention function will keep the motor of the tool 

from running even if the power is recovered or you 

put in the plug again.

To resume work, turn off the switch and then turn it 

on once again.

5-11. Kick Back Stop

When a big shock is given to the cutter during 

operation, the motor will stop automatically to protect 

the operator and the tool.

Chamfering can only be resumed once the switch is 

turned on again.

5-12. How To Chamfer Outer Diameter

WARNING

● 

Be sure to turn the switch OFF and remove the 

power plug from power supply whenever the 

accessories are attached or removed.

The tool can be used on the workpieces at the 

minimum diameter of 300mm by adjusting dimension 

A of both Hex. Socket Set Screws (8

25 special)

①

in either direction. (Fig.13)

Remember that this operation requires the workpieces 

of at least 12mm length. (Fig.14)

(1) In the case of constant R (Circle), install two Hex. 

Socket Set Screws (8

25 special)

①

on Plate 

D and tighten with Hex. Nuts. Make sure that the 

dimension A of the left and the right screws are 

equal.

Chamfering on an outer diameter of O.D. 200mm – 

O.D. 300mm can done by placing the Hex. Nut on 

the other side of Plate D. (Fig.13, 14)

(2) In the case of variable R (Oval), remove one of the 

two Hex. Socket Set Screws (8

25 special)

①

.

Side

Second cut

Surface

Uppe Surface

Tangential

Line

T

angential

Line

R

R