Owner's Manual

9. STANDARD ADJUSTMENTS

RH-9820

NOTE: Relationship between needle drop position and eyelet pattern at the eyelet

When switching between cutting before sewing or no cutting

and cutting after sewing, the needle drop position at the inside

sewing position will change automatically in accordance with

the eyelet pattern as shown in the illustration.

Needle drop c x d

Knife

No.

Eyelet pattern

a x b

Cutting before

sewing or no cutting

Cutting after

sewing

1 2.1 x 3.2 1.7 x 2.7 2.5 x 3.8

2 2.8 x 4.3 2.4 x 3.9 3.2 x 4.9

3 3.0 x 4.6 2.6 x 4.1 3.4 x 5.2

4 3.2 x 5.4 2.8 x 4.9 3.6 x 6.0

5 Straight Straight Straight

6 3.8 x 4.3 3.4 x 3.8 4.2 x 4.9

Cutting before sewing Cutting after sewing

9-17. Adjusting the cutting pressure

Set the cutting pressure to the minimum pressure that still

allows the material to be cut.

* Set to between 0.1 - 0.6 MPa. (It is set to 0.4 MPa at the

time of shipment from the factory.)

Turn the knob (1) of the hammer pressure adjustment

regulator on the underside of the table to adjust the air

pressure.

NOTE:

• Do not increase the cutting pressure more than necessary.

If the pressure is too high, it will wear out the hammer and

damage the knife.

• If the material cannot be cut cleanly, do not increase the

cutting pressure to too high a pressure.

Check the timing between the knife and the hammer.

(Refer to “9-13-2. Adjusting the contact between the knife

and the hammer”.)

0559B

Eyelet pattern a x b

Needle drop c x d

0469B