Brother LZ2-B850 User manual

LZ2−B850, B850W, B851 1/5

2001.4

LZ2−B850 



B850W

LZ2−B851

Single Needle Zigzag Lock Stitcher

Specifications

Zigzag stitch 1 - needle Bottom feed Height of

Presser foot Needle stroke Max. sewing

speed

B850 Zigzag width

5 mm **

B850W * *

B851 Zigzag width

8 mm **

Manual 6 mm

Knee 10 mm 33.3 mm 5,000 rpm

B850 - 1, B850W - 1, B851 – 1

(Foundation) B850 - 3

(Long stitch)

Max. stitch lenght 2.5 mm 5 mm

Thread take up Rotary

Presser pressure 20 – 60 N

Needle type SCHMETS SY1965 Nm70(#10)

Hight of feed dog 1 mm

Arm pocket area W269 ×D178 mm

LZ2-B851-

3-step zigzag

LZ2-B850-

Plain zigzag

(narrow)

LZ2-B850W-

Plain zigzag

(wide)

Use

1 General (foundation) Use

1 General (foundation)

Use

1 General (foundation)

3 General (long stitch)

LZ2−B850, B850W, B851 2/5

2001.4

Gauge parts list

Zigzag width Needle plate Presser foot assy Feed dog

S48064-001 S48293-001 S52435-001

For general 3-step zigzag

S48065-001 S48299-001 S52436-001

Good for sewing smoothlyat sewing

start and overlapping sections

S48305-001 S48143-101

For long stitch feed

S48145-101

For long stitch feed

8 mm

S54922-001 S54933-001

Good for sewing requiring frequent

change of base line

*The presser feet with chamfering (S48299-001, S48305-001) are suitable for long stitch feed sewing.

LZ2−B850, B850W, B851 3/5

2001.4

Gauge parts list

Zigzag width Needle plate Presser foot assy Feed dog

S06166-001 S52068-001

For general plain zigzag

S53410-001

S48308-001

S54937-001

For sewing light material

S06170-101

Suitable for plain zigzagging with tape

widely stretched

S48066-001 S06171-101

5 mm

S48067-001

S54929-001 S54956-001 S54945-001

For sewing tape, hook, and edge of bra

3 mm S54930-001 S54957-001 S54946-001

For sewing tape, hook, and edge of bra

LZ2−B850, B850W, B851 4/5

2001.4

Option parts

Separate type presser bar.

Ref. No. Part name Part code Q’ty

1 Presser bar, U S50114-001 1

< For presser foots for lock stitch >

2-1 Presser bar tip, A S50115-001 1

< For standard presser foots >

2-2 Presser bar tip, B S50116-001 1

Thread tension assy (disc type)

Ref. No. Part name Part code Q’ty

7-2 Thread tension assy S51808-001 1

7-2-1 Thread tension bracket S48084-001 1

7-2-2 Thread take-up spring S02620-001 1

7-2-3 Tension stud 116922-001 1

7-2-4 Disc presser, ;Tension 159805-001 1

7-2-5 O ring, S14 081014-870 1

7-2-6 Spring, tension ;M 104525-001 1

7-2-7 Disc, ;Tension 145446-001 2

7-2-8 Washer S12441-001 1

7-2-9 Tension nut S31032-001 1

7-2-10 Set screw, SM3.57 100402-004 1

9-2 Tension release pin S51809-000 1

LZ2−B850, B850W, B851 5/5

2001.4

Thread guide, F / Felt

Ref. No. Part name Part code Q’ty

22 Thread guide, F S51814-001 1

23 Felt 114941-001 1

Rotary hook

Ref. No. Part name Part code Q’ty

32-2 Rotary hook assy, HP w/box

(carbide reinforced hook tip) S51821-901 1

32-2 Rotary hook assy w/box;ST

(for medium-weight materials) S55026-901 1

Thread take-up

Part name Part code Q’ty

Rotary thread take-up lever (for plain zigzag and tape attaching) S54996-001 1

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