Brother LH4-B800E Manual

LH4-B800EELECTRONIC LOCKSTITCH BUTTON HOLERPRODUCT MANUAL

10(6-1) Wide sewing range• Newly-developed thread take-up, rotary hook and thread path mechanisms have been adopted as part of the change to an electr

11Whip stitch 3,600 rpm Spun #60B800E30201075 95B81630201075 95JUKI (mechanical)30201075 95JUKI (electronic)30201075 95Whip stitch 4,000 rpm

12• Sewing performance has been improved even for coarse threads which have caused problems up until now (Brother data).• For example, for threads (su

13(6-2) Short lower thread trailing length• The newly-designed lower thread trimming mechanism gives a shorter lower thread trailing length when the t

14(6-3) Better stitches at the sewing start• Adoption of a bobbin presser prevents the bobbin from spinning free when the lower thread is trimmed. Thi

15(6-4) Clean finish with no upper thread trailing length• Attractive finishes are obtained with no upper thread trailing at the sewing end.This ensur

16(6-5) Stable zigzag seams even at high speed• A new needle zigzag mechanism (patent pending) reduces the effect of vibration from upper shaft rotati

17Zigzag mechanism (mechanical button holer)Zigzag mechanism (B800E)4 mm wide zigzag stitches can be sewn at 4,000 rpm.Before modification Af

18(6-6) No uncut hole length at front backtacking• If "Feeding when cutter operating" is set, only the feed mechanism operates after sewing

19(6-7) Adjustment of zigzag width balance is possible• The left and right stitch width ratio for buttonholes can be set on the operation panel.This a

2ContentsThe need for electronic lockstitch button holers----- 3Background ----------------------------------------------------------------------3B800

20(6-8) Under lay• This ideal for sewing stretch materials such as knitted articles. Up to three patterns can be combined and sewn together.Rectangle•

21Rectangular (making voluminous stitch)No under layRectangle under lay (3 times on the same point)Rectangle under lay (3 times offset) B800E ONLYSaw

22(6-9) 2-cycle sewing prevents seams unravelling• If 2-cycle sewing is set, the seams will not unravel when force is applied to pull the buttonhole.T

23(6-10) Purl stitch / Whip stitch• The upper thread tension is controlled by a solenoid, so that changing between purl stitches and whip stitches can

24(6-11) Accurate thread trimming• The lower thread trimming mechanism operates in conjunction with the presser foot lifter mechanism, and is driven b

25Comparison chart of mechanical button holersReferenceLH4-B800ELH4-B816 LH4-B816NP JUKI mechanical (790) JUKI mechanical (790-1)Max. sewingspeed4,00

26Comparison chart of electronic button holersMain functionReferenceLH4-B800EJUKI (electronic)Max. sewing speed4,000 rpm3,600 rpmPattern changePanel

27ReferenceLH4-B800EJUKI (electronic)• It might be thought that there would be a disadvantagewith cutter space for cutter shirts, but monitoring by c

28Detailed functionReferenceLH4-B800EJUKI (electronic)Zigzag width change in right, left whenout of balance(6-7)Change by zigzag width ratioNot chang

29ReferenceLH4-B800EJUKI (electronic)For low tension ofupper threadDetection possible at spring tension 10g, thread tension 40 g.Detection possible a

3The need for electronic lockstitch button holers Background The advantages of electronic sewing machines:Product conceptAn electronic lockstitch but

30ReferenceLH4-B800EJUKI (electronic)ThreadingStops at right side at the time ofemergency stop and thread breakage.Cannot stop at right when power is

31 Using B800EParameter configuration• No. 00-69: Can be memorized independently for each program.• Items for which setting is unnecessary can be auto

32Parameter switchNo. Setting items Setting range Unit Default00 Sewing speed (zigzag part) 1,000 – 4,000rpm 100 3,60001 Button hole / Bar tack 0 :

33No. Setting items Setting range Unit Default18 Feed pitch 1.0 – 5.0mm 0.1 2.019 Feed width 0.5 – 3.0mm 0.1 1.020 Front tack pattern 0 : Rectangle

34No. Setting items Setting range Unit Default46 No. of saw-shape underlays 0 - 1 1 047 No. of rectangle underlays 0 - 5 1 048 Underlay speed 1,000 –

35Memory switch• No. 00-12: Effective for all programs No. Setting items Setting range Unit Default00. Cutter power 1 : Thin 2 : Normal 3 : Mediu

36Panel DIP switch• Changes to panel DIP switch settings are invalid until the power is turned off and back on again.Panel DIP SW-ANo. Setting item De

37DIP switch inside the control box• Changes to panel DIP switch settings are invalid until the power is turned off and back on again.Control box DIP

38Error codeCode Cause RemedyE-00 EMERGENCY STOP switch was pressed.To restart sewing: Press the DOWN key, then pressthe START key.To cancel sewing: P

39Code Cause RemedyE-50Pattern shape for data created using the BAS-PC/300 does notmatch the pattern shape specifications.Turn off the power.E-51 X pi

4Points of appeal for the customer(1) Wide variety of sewing patterns• Patterns can be easily selected from the operation panel from a total of 21 sta

40Gauge part interchangeability• The table below shows the main B816 gauge parts which can also be used with the B800E.Cutter 109837-001, 107200-001,

41SpecificationsMax. sewing speed 4,000 rpmZigzag mechanism Pulse motorFeed mechanism Pulse motorPresser foot lifter mechanism Pulse motor (standard e

118-H80I0010780F2000,01Printed in JapanNAGOYA, JAPAN

5 (2) Simple and easy-to-use operation panel• This operation panel is simple in design and easy to use, and includes a careful selection of functions

6(3) Adjustable presser foot lifter height• The presser foot lifter is driven by a pulse motor, so that the height can be adjusted as desired (standar

7(4) Quick and accurate cutter operation• The cutter vertical movement is driven by a double position solenoid, so that the material is cut more accur

8(5) Quiet operating environment• Adoption of a clutchless mechanism ensures quieter operating environment and increased durability.Acoustic noiseSewi

9(6) Perfect sewing quality(6-1) Wide sewing range(6-2) Short lower thread trailing length(6-3) Better stitches at the sewing start(6-4) Clean finish