Brother LT2-841 MKII Manual de usuario

LT2−B841 Mark II, B842 Mark II 1/9

2000.7

LT2−B841Mark II

Twin Needle Needle Feed Lock Stitcher

with Thread Trimmer

Specifications −1−3−5

Application Forthinmaterials Formediummaterials Forheavymaterials

Max.speed 4,000rpm 3,000rpm

Max..stitchlength 4mm 5mm

Needlebarstroke 33.4mm

Threadtake-upstroke 52mm

Manual 7mmHeightof

Presserfoot Knee 13mm

Heightoffeeddog 1mm

Needle DP×5#11 DP×5#14 DP×5#22

Hook Horizontalrotaryhook(verticalaxis)

LT2−B841 Mark II, B842 Mark II 2/9

2000.7

LT2−B842Mark II

Twin Needle Needle Feed Lock Stitcher

with Thread Trimmer

Specifications −1 *−1C −3−5

Application Forthinmaterials Formediummaterials Forheavymaterials

Max.speed 4,000rpm 3,000rpm

Max..stitchlength 4mm 5mm

Needlebarstroke 33.4mm

Threadtake-upstroke 52mm 52mm (Withthreadtrimmer)

Manual 7mm

Knee 13mm(Withthreadwiper:10mm)

Heightof

presserfoot Auto Solenoidtype:8 mm,Airtype:10mm

Heightoffeeddog 1mm

Needle DP×5#11 DP×5#14 DP×5#22

Hook Horizontalrotaryhook(verticalaxis)

−400 −700 −900

Threadtrimmer Scissorstype(Solenoid)

Threadwiper Solenoidtype

Quickreverse Solenoidtype

Automaticpresserbarlifter −Airtype Solenoidtype

LT2−B841 Mark II, B842 Mark II 3/9

2000.7

B841 Mark II ·B842 Mark II (For Standard)

For normal

*In case of using over 1−1/2" (38.1mm) gauge parts, it is required to make special machining on the arm-bed.

A maximum stitch width specification of 77 mm is available.

Please consult your Brother representative concerning delivery date and price.

Needlegauge Needleclamp

assy Needleplate Feeddog Presserfootassy

(−3) (−5) (−3,−5) (−7)

(inch) (mm) Formedium

materials Forheavy

materials Formedium&

heavymaterials

Forextraheavy

materials

(Fingerguardless)

(Withfingerguard)

Tandem (0.5) 158801−001 142111−001 142110−001 142105−001

1/16 (1.6) 158808−001 142111−001 151078−001 151076−001

1/8(3.2) 158794−101 114950−001 117369−001 114951−001 158430−001 114948−001 S36544−001 ¡

5/32 (4.0) 158796−101 116503−001 150850−001 116509−001 116502−001

3/16 (4.8) 158791−101 112603−001 117133−001 112659−001 S13588−001 112638−001 S36546−001 ¡

1/4

(6.4)

158792−101 112604−001 117367−001 112660−001 153882−001 112642−001 S36548−001 ¡

5/16 (7.9) 158793−101 112605−001 144882−001 112661−001 112645−001

3/8(9.5) 158798−101 116506−101 144881−101 116510−101 153887−001 116498−001

7/16

(11.1)

158809−101 151596−001 151598−001 151597−101 ¡

1/2(12.7) 158797−101 116505−001 S09365−001 116511−001 153892−001 116499−101 ¡

5/8(15.9) 158795−101 116507−001 159577−001 116512−001 153897−001 116500−101 ¡

1(25.4) 158805−101 147176−001 147178−001 153907−001 147177−101 ¡

1−1/4(31.8) 158799−101 116504−001 116508−001 116501−101 ¡

1−1/2(38.1) 158800−101 118945−001 118947−001 118946−101 ¡

2(50.8) 158802−101 144951−001 144947−001 144949−101 ¡

2−1/6

(55.0)

155803−101 147560−001 147561−001 147562−101 ¡

75mm S16238−101 S16240−001 S16241−001 S16242−101 ¡

77mm S30508−001 S30510−001 S30513−001 S30511−201 ¡

Needleplate

Needleclampassy (−3)

Formediummaterials (−5)

Forheavymaterials

Feeddog Presserfootassy

(−3,−5)

Formedium&heavymaterials (−7)

Forextraheavymaterials (Fingerguardless) (Withfingerguard)

LT2−B841 Mark II, B842 Mark II 4/9

2000.7

B841 Mark II ·B842 Mark II (For Standard)

For foundation

*The needle plate and the feed dog aredifferent from normal parts.

*Use part no. 117160−001 as the needle plate installation screw.

Needlegauge Needle clamp assy Needleplate Feeddog Presserfootassy Presserfootassy

(inch)

(mm)

(Fingerguardless) (Withfingerguard)

1/8(3.2)

158794−101

S24571−001

S24572−001

114948−001

S36544−001

Barless

117370−001

117366−001

3/16

(4.8) 158791−101 117158−001 117134−001 112638−001 S36546−001 ¡

1/4(6.4)

158792−101

117368−001

117365−001

112642−001

S36548−001

5/16 (7.9)

158793−101

S31907−001

S31908−001

112645−001

Needleplate Feeddog

For sewing without material

*The needle plate, the feed dog and the presser foot assembly are different from normal parts.

*Use gauge components of for sewing without material which have a maximum feed pitch of 4mm or less.

Needlegauge

Needleclampassy

Needleplate Feeddog Presserfootassy

(inch)

(mm)

3/16 (4.8)

158791−101

S36010−101

S36011−101

S36012−001

1/4

(6.4)

158792−101 S36025−001 S36024−001 S36022−001

Needleplate Feeddog Presserfootassy

LT2−B841 Mark II, B842 Mark II 5/9

2000.7

(

−

1) : For light materials

*The feed dog is different from normal parts.

Needlegauge Needleclampassy Needleplate Feeddog Presserfootassy Presserfootassy

(inch)

(mm)

(Fingerguardless) (WithFingerguard)

1/8(3.2) 158794−101 114950−001 S07880−001 114948−001 S36544−001 ¡

3/16 (4.8)

158791−101

112603−001

S07878−001

112638−001

S36546−001

1/4(6.4)

158792−101

112604−001

S07879−001

112642−001

S36548−001

Feeddog

(−6) : For heavy materials

*-6 (for heavy materials) is a specification between –5 (for heavy materials) and –7 (for extra heavy materials).

*The feed dog is different from normal parts.

Needlegauge Needle clamp assy Needleplate Feeddog Presserfootassy Presserfootassy

(inch)

(mm)

(Fingerguardless) (WithFingerguard)

3/16 (4.8)

158791−101

117133−001

S21149−001

112638−001

S36546−001

1/4(6.4)

158792−101

117367−001

S21150−001

112642−001

S36548−001

Feeddog

LT2−B841 Mark II, B842 Mark II 6/9

2000.7

For new synthetic fiber

*The shape of the presser foot assembly is the same as for the standard part, but it has a special surface processing.

*The feed dog and the presser foot assembly are different from normal parts.

Needlegauge Needle clamp assy Needleplate Feeddog Presserfootassy

(inch)

(mm)

(Fingerguardless)

3/16 (4.8)

158791−101

112603−001

S36832−001

S36833−001

1/4(6.4) 158792−101 112604−001 S36829−001 S36830−001

Feeddog Presserfootassy

(Finger guard less)

Option parts

*The presser foot assembly is different from normal parts.

*The presser foot assembly with guide should be used with a maximum feed pitch of 4mm or less.

Nameofparts Needlegauge Presserfootassy

(inch)

(mm)

1/8

(3.2)

149311−001

Presserfootassywithguide 3/16 (4.8)

117281−001

1/4(6.4)

149312−001

Presserfootassywithguide,L 5/16 (7.9) S13735−001

Presserfootassyforattachzipper(Right) 1/8(3.2) S14080−001

Presserfootassyforattachzipper(Left) 1/8(3.2) S33459−001

Presserfootassywithguide Presserfootassywithguide,L Presserfootassyforattachzipper

(Right) Presserfootassyforattachzipper

(Left)

LT2−B841 Mark II, B842 Mark II 7/9

2000.7

B842 Mark II (For Thread trimmer)

For normal

*The thread trimming fixed knife (part No. S07527−001) and the installation screw (part No. 148539−101) are not provided with the

needle plate, so they must be ordered separately if required.

*In case of using over 1−1/2" (38.1mm) gauge parts, it is required to make special machining on the arm-bed.

A maximum stitch width specification of 2" (50.8mm) is available.

Please consult your Brother representative concerning delivery date and price.

*The ¡symbol is a presser foot assembly with finger guard.

Needlegauge Needleclamp Needleplate Feeddog Presserfootassy

assy

(−3)

(−5)

(−3)

(−5)

(−3)

(−5)

(inch) (mm) Formedium

materials Forheavy

materials Formedium

materials Forheavy

materials

Formediummaterials

Forheavymaterials

2mm

S19862−001

S19864−001

S19866−001

S19867−001

3/32

(2.4)

158804−101 159398−001 148697−001 148679−001

2.8mm

S19905−001

S19907−001

S19909−001

S19910−001

1/8(3.2)

158794−101

159400−001

155722−001

148698−001

148699−001

148685−001

148681−001

S36550−001

S36552−001

5/32 (4.0)

158796−101

158785−001

155724−001

148700−001

148701−001

148689−001

148683−001

3/16 (4.8)

158791−101

158784−001

155851−001

148702−001

148703−001

148687−001

148691−001

S36554−001

S36556−001

1/4(6.4)

158792−101

158783−001

155853−001

148704−001

148705−001

148693−001

148695−001

S36558−001 ¡S36560−001 ¡

5/16

(7.9)

158793−101 159402−001 155855−001 149692−001 149691−001 149689−001 149687−001

3/8(9.5)

158798−101

149946−001

155857−001

149939−001

149938−001

149942−001

149940−001

1/2(12.7)

158797−101

159404−001

149677−001

149676−001

149675−001

149673−101

149671−101

5/8

(15.9)

158795−101 149956−001 149954−001 149949−001 149948−001 149952−101 ¡149950−101 ¡

3/4(19.1)

158806−101

150526−001

150523−001

150524−101

7/8(22.2)

158807−101

150534−001

150531−001

150532−101

(25.4)

158805−101 S32052−001 149966−001 S32055−101 149960−001 S32055−101 ¡149962−101 ¡

1−1/8

(28.6)

S16102−001

S16104−001

S16107−101

1−1/2

(38.1)

158800−101

S07391−001

S07390−001

S07388−101

LT2−B841 Mark II, B842 Mark II 8/9

2000.7

B842 Mark II (For Thread trimmer)

For normal

Needleplate

Needleclampassy (−3)

Formediummaterials (−5)

Forheavymaterials

Feeddog Presserfootassy

(−3)

Formediummaterials (−5)

Forheavymaterials (−3)

Formediummaterials (−5)

Forheavymaterials

For sewing without material

*The needle plate, the feed dog and the presser foot assembly are different from normal parts.

*Use gauge components of for sewing without material which have a maximum feed pitch of 4mm or less.

Needlegauge Needleclampassy Needleplate Feeddog Presserfootassy

(inch)

(mm)

3/16 (4.8)

158791−101

S20901−001

S20905−001

S20903−001

1/4 (6.4)

158792−101

S10507−001

S10509−101

S10510−001

7/8 (22.2) 158807−101 S14538−001 S14540−001 S14541−101 ¡

1(25.4)

158805−101

S14543−001

S14545−001

S14546−101

Needleplate Feeddog Presserfootassy

LT2−B841 Mark II, B842 Mark II 9/9

2000.7

(−6) : For heavy materials

*-6 (for heavy materials) is a specification between –5 (for heavy materials) and –7 (for extra heavy materials).

*The feed dog is different from normal parts.

Needlegauge Needle clamp assy Needleplate Feeddog Presserfootassy Presserfootassy

(inch)

(mm)

(Fingerguardless) (Withfingerguard)

3/16 (4.8)

158791−101

155851−001

S07905−001

148691−001

S36556−001

1/4(6.4)

158792−101

155853−001

158756−001

148695−001

S36560−001

Feeddog

For new synthetic fiber

*The feed dog and the presser foot assembly are different from normal parts.

*The shape of the presser foot assembly is the same as for the standard part, but it has a special surface processing.

Needlegauge Needle clamp assy Needleplate Feeddog Presserfootassy

(inch)

(mm)

(Fingerguardless)

3/16 (4.8)

158791−101

158784−001

S36855−001

S36856−001

1/4(6.4)

158792−101

158783−001

S36858−001

S36859−001

Feeddog Presserfootassy

(Fingerguardless)

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