Table of Contents
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GENERAl-
INFORMATION
°This
service
manual
was compi[ed
for use when
repairing
the VXl120,
VXll40
and VX1250
Zigzag
Stitch Sewing
Machines.
• Usethis
manual,
together
with
the Pal_s Catalogr
when
making
repairs.
• This
manual
was wri[_en
based
on
the
most
up-to-date
product
specifications
at the time of printing.
Some machine
specifications
may have been changed
to
improve
the quality
of the product.
Cont_lct
the manufacturer
or you_ local sales representative
for information
on such changes.
Brother Industries,
Ltd.
Nagoya, ;apan
• Symbols used
T
-
! M°ve[nepartinthedirecti°n°f[he
arrow
--_
Set the clearance
as indicated.
Move
the part to it5 highest
_r
lowest
position.
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Table of Contents
Related Manuals for Brother VX1140
Summary of Contents for Brother VX1140
- Page 1 Cont_lct the manufacturer or you_ local sales representative for information on such changes. Brother Industries, Ltd. Nagoya, ;apan • Symbols used ! M°ve[nepartinthedirecti°n°f[he arrow Set the clearance as indicated. Move...
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Page 2: Principal Mechanisms
Zigzag COnnsclingrO PRINCIPAL MECHANISMS Bobbin winder T-belt (BaYing bell) Nsed e bsr H orlzor3taJ feed 8ha4t ing foal... -
Page 3: Disassembling Sewing Machine
DISASSEMBLING THE SEWING MACHINE Remove_hescr_w_ndthef_cepJmefromtbeJeit_ided_emachine. Loosen lhe [hree screws a[[achin 8 the front and rear carets _nd _hescrew on the levi side Use a screwdriver to disenBa_e the front cgver tab and remove the [font c_)ver. Lower the presse_ _oot [iftel, Iemove [he four screws indicated... - Page 4 ADJUSTING THE CLEARANCE BETWEEN THE NEEDLE AND THE SHUTTLE HOOE (SHUTTLE RACE POSITION) STANDARD Theclearance between the needle and the shutt]e hook should be between 0.02 and 0.1 ram. The shuttle race should be posl ioned correc ly wL h respee o he urnmg dlrec ion of...
- Page 5 A.DJUSTII_G THE CLEARANCE BETWEEN THE SHUTTLE DRIVER AND THE RACE WAY STANDARD There should be no clearance be_veer_ _he shuttJe driver the race way and the shuttle driver should rotate smoothJy. _.DILJSTMENT _, Loosen the two driver shaf[gear screws, 2. Adjust lhe dearance of the drlver shaft.
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Page 6: Adjusting Needle Swing
ADJUSTING THE NEEDLE SWING STANDARD When the stitch width knob is set at "S", [he needle swing shou]d be 0.05 mm or less when the needle is moving down from the needle alate to its lowest position. When the needle is moving up from its lowest... - Page 7 CENTERING THE NEEDLE STANDARD When the needle position selector is set at "M" and the stitch width knob is se_ at "0", the needle should be centered in the needle plate hole. ADJUSTMENT Set the needle position selector to "M" and the stitch width knob to "0".
- Page 8 ADJUSTING THE TIMING OF THE NEI_DLE AND THE SHUTTLE HOOK (SHUT- TLE HOOK POSITION) STANDARD ,Vhen hes chwdhknob sse a '5 and heneedle s asedon heJef sdeavl,7 o2.1mmfrom[tsrowestpos o ,thesh ttlehook Joint should align with the side af the needle. _DJUSTMENT Set the stitch width knob to "5", then lower the need]e to its [o_,esl poskion at the left side of the needle plate.
- Page 9 ADJUSTING THE HEIGHT OF THE NEEDLE STANDARD VVhen the stitch width knob is set at "g" and die needle contact5 the shuttle hook when the needle i_ an the right side, lhe clearance between the top of the needle eye and the shuttle hook point should be between 0.8 and 1,2 mm. ADJUSTMENT Set the stitch width knob to "5", then lower the neefl]e to its lowest position at the right side of _he need[e...
- Page 10 10. ADJUSTING THE TENSION OF TH]_ TL_ING BELT STANDARD Fhere should be between 4,0 and 6,0 mm of slack in the th'n[ng belt when the cenler of the belt is pushed with appro×imate]y 200 g of pressure ADJUSMENT b_o screws on the _TIotor Loosen holder, Movethemotorhofdertoadjustthebefttension_oitmeetstheabovestandard.
- Page 11 11._JUSTING THE HEIGHT OF THE FEED DOGS STANDARD £ When he reed dogs are raised o heir hEghes po_J ion, hey should be belween (3.9 and 1 I mm higher than the needle plate. ADJUSTMENT • Turn the baFance wheel to raise the needle bar to ils highest position.
- Page 12 12.ADJUSTING THE HEIGHT OF THE PRESSER STANDARD The clearance between the pres__ertoot and the needle pla_e should be between 6.0 and 6.5 f_m. ADJUSTMENT Raise the presser foot, Loosen the screw on the presser bar guide bracket, 3_ Adjust the height of the presser bar Ti_hter_ the screw, NOTE...
- Page 13 13. ADJUSTING THE STITCH LENGTH FOR FORWARD STITCHING AND BACK- STITCHING STANDARD When the stitch length knob is set at "2", the_e should be a difference of :10% in [he length of the forward stitch and the backstitch. ADJUSTMENT Set the stitch width knob to "0"...
- Page 14 14.ADJUSTING THE UPPER TENSION CONTROL DIAL STANDARD ,Vhen the upper tension control dial i_ set at "O" and the presser foot is lowered, the upper thread tension should be between 5 and IO g _vhen cotton thread #50 is used. gDIUSTMENT Set the upper tension control...
- Page 15 15.ADJUSTIIIIENT OF BOBBIN WINDING STANDARD The thread should be wound even]y around thebebbin and should h!] 75 to 85% of the bobbin. ADJUSTMENT If the thread doe_ not wind evenly around the bobbin, s[ightly]oosen the screw on the thread guide/bobbin winding tension disc Move the thread guide/babbin...