Baby Lock BLE1 User manual

SERVICE MANUAL
Basic Adjustment
MODEL BLE1
BLE1SX
BLE1DX
BLE1AT
BLE3ATW
BLE8
BLE8W
BLCS
Vol. 6.1
From
Serial Numbers
8W: K6 104507
ATW: K6 148120
AT: K6 104551
8W: 101484
ATW: 101141
AT: 705451
DX: 715850
8W: 101201
8: 501001
ATW: 101081
AT: 705771
DX: 715800
8W: 100231
ATW: 103681
AT: 307467
DX: 300806
U.S.A. Canada EU Au. N.Z

Needle System : ELx705CF ORGAN (SCHMETZ)
Model : BLE8, BLE8W, BLE5, BLCS
Plating : Chrome
Front Groove
Back Groove
Needle System : HAx1(130/705H) SCHMETZ,ORGAN
Model : Household Sewing Machine
Plating : Nickel
Front Groove
Needle System : HAx1SP/CR ORGAN (SCHMETZ)
Model : BLE1SX, DX, LX, AT, ATW, BL101
Plating : Chrome
Front Groove
1.NEEDLE
NOTE: Before all adjustment,
you are required to change all needles to new and correct ones.
1

Raise
Lower
Screw A
Eccentric shaft
Presser foot bar
Screw B
Needle plate
2. ADJUSTMENT OF NEEDLE AND PRESSER FOOT HEIGHT
a) Height of needle
Turn handwheel, and bring the needle to the highest position.
Loosen screw "A", and turn the eccentric shaft to clockwise or counter-clockwise.
Clockwise ------------------- Lower needle
Counter-clockwise--------- Raise needle
b) Height of presser foot
Raise the presser foot lifter. Loosen screw "B", and move the presser foot bar to
raise or lower.
You are required to check the clearance between needle and presser foot.
2
Needles
Needle position
Height of needle
Needle plate
11.2+0.1
Right Needle
Organ
ELx705CF 90/14
Organ
HAx1SP/CR 90/14
Organ
HAx1SP/CR 75/11 Organ
ELx705CF 90/14
Needle
plate
12.5+0.05
C3 Needle Needle
plate
Right
O2Needle
10.6+0.1
Needle plate
11.5+0.1
Right Needle
SX, DX, AT ATW BLCS(3) BLE5,BLE8
BLE8W

3. LOWER LOOPER ADJUSTMENT
4. NEEDLE GUARDS ADJUSTMENT
Looper arm
screw for
adjusting position
a) Replacement of lower looper
Slide the pipe rubber, and loosen the screw.
Replace new lower looper, and slightly tighten the screw.
Adjust the radius 55.4mm 0.1, and firmly tighten the screw.
Replace the pipe rubber.
b) Lower looper position
Turn the handwheel, and bring lower looper to
the far left.
Loosen looper arm screw, and adjust lower looper
to the correct position.
You are required to check the distance of tip of
lower looper and needle.
c) Distance between lower looper and needle
Turn the handwheel, and bring tip of lower looper to
the center of left (right) needle.
Loosen looper arm screw, and adjust lower looper
to the correct position.
Lower looper
fixing screw
Right
Needle
Lower looper
position
3
55.7 mm
+
0.1
+
#11(#75)Needle
5.2 mm (SX,DX,AT)
0
-0.1
#14(#90)Needle
5.3 mm (ATW)
#14(#90)Needle
4.8 mm
(BLE5, BLE8W))
0
-0.1
0
-0.1
c) Rear needle guard position
Loosen rear needle guard screw ,and adjust rear needle
guard to the correct position.
c)Adjusting needle guards
Loosen front needle guard screw,
and adjust front needle guard to
the correct position.
Rear needle guard can be adjusted
by bending.
1.3mm
Rear
needle guard
Rear
needle guard
NOTE: After adjusting loower looper, you are required to
check JET AIR THREADING.
0
2.0-2.3mm
left,right
needle
left,right
needle
screw
Front needle guard
fixingscrew
Front
needle
guard
Front
needle
guard
0
0

Max. 8.5
5 .UPPER LOOPER ADJUSTMENT
c) Correspondence amount of lower and upper looper
Turn hand wheel and bring the loopers to the
cross position as shown.
Make sure upper looper on the overlapping amount
8.3mm between both tip of loopers.
d) The distance between upper looper and lower looper
Turn hand wheel and bring the loopers to the
cross center position as shown.
Loosen looper fixing screw, and adjust upper looper
to the correct position.
d) The distance between upper looper and needles
Turn hand wheel and bring the loopers to the
far left (top position).
Make sure upper looper do not touch needles strongly,
and the distance between upper looper and needles
is not big.
Repeat a) to e) until you get exact position.4
0.8+0.3
Looper arm
screw for adjusting position
a) Replacement of upper looper
Slide the pipe rubber, and loosen the screw.
Replace new lower looper, slightly tighten the screw.
The distance from looper from shaft is approx. 0.8mm,
and firmly tighten the screw.
Replace the pipe rubber.
Upper looper
fixing screw
Right
Needle
b) Upper looper position
Turn the handwheel, and bring upper looper to
the far left.(top position)
Loosen looper arm screw ,and adjust upper looper
to the correct position. Upper looper
position
+
+
#11(#75)Needle
8.5 mm
#14(#90)Needle
8.6 mm
0.1
0.1
0
Needles
NOTE: After adjusting upper looper, you are required to
check JET AIRTHREADING.

Screw A Clockwise Raise
Counter-clockwise Lower
Adjusting screw
6. FEED DOG ADJUSTMENT
Loosen two screws "A" , rotate adjusting screw clockwise
or counter-clockwise.
Clockwise-----------------------Raise feed dog
Counter-clockwise------------Lower feed dog
Presser foot
Pressure
1mm
1mm
a) FEED DOG HEIGHT ADJUSTMENT
a) FEED DOG POSITION ADJUSTMENT
Screw of Main feed dog
(Rear)
Screw of Sub feed dog
(Front)
Condition : Stitch Length 4
Differencial Feed N
The minimum distance between needle plate and main/sub
feed dogs which are moved front and back, is 1mm.
5
0.9 - 1.0mm

7. Differential feed adjustment
Correct positon : On condition diff.lever "N" position and stitch length dial "4",
main feed dog(rear) and sub feed dog (front) move same length.
Differential feed
adjuating lever
Differential feed
positining ratchet
Screw
Stitch length
dial
Sub feed dog
(front)
Main feed dog
(rear)
How to adjust
a) Move differential feed adjusting lever to get same moving length of
main and sub feed dog.
b) Loosen two screws of differencial feed positioning ratchet.
c) Hold connecting shaft by finger, move differential feed adjusting lever to "N"
position.
d) Tighten two screws.
6
Connecting
shaft

Steel ball
Spring
Cheining tongue
Cover plate
8-1. REPLACEMENT OF CHAINING TONGUE (EXCEPT BL3ATW)
8-2. REPLACEMENT OF CHAINING TONGUE
(BL3ATW)
a) Remove needle plate.
b) Loosen two screws of chaining tongue
cover plate and remove it.
c) Watching carefully not to jump out steel
ball, remove chaining tongue and replace it.
d) You are requied to check the fixing position
of the chaining tongue, after replacing it.
e) Rotate stitch length dial max. 4 to rolled hem max.4,
make sure the chaining tongue is moved smoothly
to rolled hem position.
7
180
Pin
Chaining tongue
holder pin
Chaining tongue
holder
Chaining tongue
holder pin
Adjusting
chaining
tongue
Adjusting
chaining
tongue
Screw
AB
a) Move the pin to leftward.
b) Remove chaining tongue holder set
with adjusting chaining tongue.
c)Loosen screw of adjusting chaining tongue
and remove holder pin.
Replace the adjusting chaining tongue
with new one.
d)Make pararell between "A" (flat side of chaining
holder pin) and "B" (top surface of adjusting
chaining tongue), and tighten the screw
temporary.
e)Replace chaining tongue holder set, and
make sure that top of adjusting chaining
tongue is parallel with needle plate.
f)Remove chaining holder set again, tighten
the screw firmly.
g)Replace chaining holder set.
Chaining tongue
holder set

10.NEEDLE PLATE ADJUSTMENT
After replace Needle Plate, you are required to adjust
position of needle.
All needles do not touch needle plate.
Needles Needles
Model: BLE1
BLE1SX
BLE1LX
BLE1AT
BL3ATW
Model: BLE8
BLE8W
BLCS
8
Needle plate
adjusting screw
Needle plate
adjusting screw
9. REPLACEMENT OF KNIVES
a) Remove upper knife and replace it.
b) Fixing screw temporaly, turn the hand pulley and bring the upper knife to
the lowest positon.
c) Adjust upper knife to be 1-1.5mm overlapping with cutting face of lower knife.
d) Tighten firmly fixing screw.
0 -0.2
1-1.5mm
UPPER KNIFE
Upper Knife Adjustment Lower Knife Adjustment
Screw Screw
a) Remove both knives and replace it.
b) Fix screw of lower knife temporaly.
c) Adjust lower knife to be 0-0.2mm down from surface of needle plate.
d) Tighten firmly fixing screw.
e) Replace upper knife as same as avobe.
LOWER KNIFE
Needle Plate

.
5.5
3.0
11. CUTTING WIDTH ADJUSTMENT
a) Cut 1 layar cotton fabric
and make a cutting width 3.7 0.1mm
between the eye of needle and the edge
of fabric.
b-1) Cutting width adjustment
Loosen fixing screw of knife holder,
and adjust knife holder right or left.
tighten the screw.
Make sure cutting width.
Machine Settings
Needle : Right Needle(O2)
Thread : No Use
Stitch Width : M
Stitch Length: 2.5
Differencial feed : N
Fabric : Cotton broad 1 layer
3.7 0.1mm
+
+
Fixing screw
of Knife holder
5.5
3.0
Fixing screw
of Knife holder
Fixing screw
of knife driving
shaft
Knife driving
shaft
0.5mm
b-2) Cutting width adjustment
Loosen fixing screws of knife holder,
and knife driving shaft.
Turn Knife driving shaft crockwise or
counter-clockwise.
Make sure cutting width.
c) Rotate the stitch width dial to min.
3.0/5.5mm, distance between lower
knife and needle plate is more than
0.5mm.
9