Brother International RH-9820 Instruction Manual - English - Page 99

Adjusting the cutting pressure, STANDARD ADJUSTMENTS

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9. STANDARD ADJUSTMENTS NOTE: Relationship between needle drop position and eyelet pattern at the eyelet Eyelet pattern a x b 0559B 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 Eyelet pattern Needle drop c x d Knife a x b Cutting before Cutting after No. sewing or no cutting 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".) 0469B RH-9820 90

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9. STANDARD ADJUSTMENTS
RH-9820
90
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.)
<Adjustment method>
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