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Instruction Manual
LT2 B841Mark II
Twin Needle Needle Feed Lock Stitcher
Twin Needle Needle Feed Lock Stitcher
with Thread Trimmer
Specifications
Application
Max. speed
Max. .stitch length
Needle bar stroke
Thread take-up stroke
Height of
Manual
Presser foot
Height of feed dog
Needle
Hook
For thin materials
Knee
DP 5 #11
1
For medium materials
4,000 rpm
4 mm
33.4 mm
52 mm
7 mm
13 mm
1 mm
DP 5 #14
Horizontal rotary hook (vertical axis)
2000.7
3
For heavy materials
3,000 rpm
5 mm
DP 5 #22
LT2 B841 Mark II, B842 Mark II 1/9
5
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Summary of Contents for Brother LT2-841 MKII
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Page 1: Specifications
LT2 B841Mark II Twin Needle Needle Feed Lock Stitcher Twin Needle Needle Feed Lock Stitcher with Thread Trimmer Specifications Application For thin materials For medium materials For heavy materials Max. speed 4,000 rpm 3,000 rpm Max. .stitch length 4 mm 5 mm Needle bar stroke 33.4 mm... - Page 2 LT2 B842Mark II Twin Needle Needle Feed Lock Stitcher Twin Needle Needle Feed Lock Stitcher with Thread Trimmer Specifications 1 * 1C Application For thin materials For medium materials For heavy materials Max. speed 4,000 rpm 3,000 rpm Max. .stitch length 4 mm 5 mm Needle bar stroke...
- Page 3 B841 Mark II · B842 Mark II (For Standard) For normal *In case of using over 1 1 / 2" (38.1 mm) 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.
- Page 4 B841 Mark II · B842 Mark II (For Standard) For foundation *The needle plate and the feed dog are different from normal parts. *Use part no. 117160 001 as the needle plate installation screw. Needle gauge Needle clamp assy Needle plate Feed dog Presser foot assy Presser foot assy...
- Page 5 ( 1) : For light materials *The feed dog is different from normal parts. Needle gauge Needle clamp assy Needle plate Feed dog Presser foot assy Presser foot assy (inch) (mm) (Finger guard less) (With Finger guard) S36544 001 ¡ 1 / 8 (3.2) 158794 101...
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Page 6: Option Parts
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. Needle gauge Needle clamp assy Needle plate Feed dog... - Page 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"...
- Page 8 B842 Mark II (For Thread trimmer) For normal Needle plate Needle clamp assy ( 3) ( 5) For medium materials For heavy materials Feed dog Presser foot assy ( 3) ( 5) ( 3) ( 5) For medium materials For heavy materials For medium materials For heavy materials For sewing without material...
- Page 9 ( 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. Needle gauge Needle clamp assy Needle plate Feed dog Presser foot assy Presser foot assy (inch)