Brother RH-9820 - Manual (Page 5)

Environment-conscious
Brother has established our original “ Brother Green Label” for the
products in conformity with ISO 14021 and JIS Q14021. The RH-9820
is certified as an environment-conscious sewing machine according to
“Brother Green Label” standard, such as “Reduction of power
consumption by 35% and above”, “Reduction of noise by 3 dB and
above” and “Use of lead-free solder for all PC boards”.
* Comparison with the conventional model RH-981A
Options
Lapel device (For -00, -01 spec.) Thread nipper device set
(SA7931-001)
Thread cast-off at sewing start
can be prevented, providing
fine finish with quality stitches. (SA8078-001)
With this device, eyelet button-
holes and straight buttonholes
can be sewn without replacing
the knife and hammer. It is suit-
able for cycle sewing of eyelet
buttonholes and a lapel button-
hole for men’s jackets.
Fly indexer (For -02 spec.)
(Standard size SA8079-001)
(Large size SA8080-001)
The number of buttonholes can
be set and the fly can be fed
automatically. This device pro-
vides speedy sewing of fly
buttonholes.
Waist belt presser
(For L26 spec. SA7777-001) (For L30 spec. SA7781-001)
When sewing a waist-belt part having different thicknesses,
these work clamps securely holds the article according to its
thicknesses. Flopping of the cloth can be prevented.
Exchange parts set (For circular stitching buttonhole)
(For -00 spec. SA7804-001)
(For -01 spec. SA7808-001)
Treadle unit* 2 (SA6567-101)
The operations of work clamp
lowering and machine start can
be made with a treadle. The
speedy operation is suitable for
buttonhole sewing of waist belt
requiring high productivity.
Please use a treadle and a connecting
rod on the market.
Two-pedal foot switch* 2 (S42838-301)
The operations of work clamp
lowering and machine start can
separately be made by foot-
operated switching. It is suit-
able for buttonhole sewing of
hip pockets requiring accurate
material positioning.
Hand start switch* 2 (SA7121-001)
The operations of work clamp
lowering and machine start can
separately be made by hand-
operated switching. It is useful
for standing operation.
* 1 For details, please consult your place of purchase.
* 2 The standard switch is different according to the destination.)
-00
-01
Eyelet buttonhole
8-50mm
8-42mm
Straight buttonhole
5-44mm
5-36mm
Gauge parts set (For -02 spec.)* 1
L1422
L1826
L2230
L2634
L3442
Sewing length
14-22mm
18-26mm
22-30mm
26-34mm
34-42mm
Part code
SA7750-001
SA7771-001
SA7752-001
SA7756-001
SA7764-001
Replacement parts set (For -01, -02 spec.)* 1
-01 -02
-02 -01
Part code
SA7773-001
SA7784-001
When sewing with buttonhole spacing out of the given values, please modify the cloth
feed bar F assembly (option) for use. The number of buttonholes 2 to 9 is possible.
Buttonhole
spacing
No. of buttonholes
Vertical sewing
margin
Horizontal sewing margin
Max. overall feed amount
Standard size
38.1 mm, 50.8 mm,
44.45 mm
2-4
Large size
38.1 mm, 50.8 mm,
44.45 mm, 57.15 mm
2-6
152.4mm 285.75mm
L1422, L1826, L2230: 8-23 mm
L2634, L3442: 0-11 mm
31.5-41.5mm
Distance
between buttonholes
No. of buttonholes
Horizontal feed amount
Vertical
sewing margin
Horizontal
sewing margin
Industry’s top energy saving with the
direct drive system
Use of lead-free solder in all PCB
Significant extension of the hook’s lifetime
Thread breakage detector
(SA8077-001)
The sensor of the device de-
tects upper thread breakage.