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.

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.

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

55.7 mm

0.1

#11(#75)Needle

5.2 mm (SX,DX,AT)

-0.1

#14(#90)Needle

5.3 mm (ATW)

#14(#90)Needle

4.8 mm

(BLE5, BLE8W))

-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.

2.0-2.3mm

left,right

needle

left,right

needle

screw

Front needle guard

fixingscrew

Front

needle

guard

Front

needle

guard

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

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

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.

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.

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.

180

Chaining tongue

holder pin

Chaining tongue

holder

Chaining tongue

holder pin

Adjusting

chaining

tongue

Adjusting

chaining

tongue

Screw

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

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.

-0.2

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.

This manual suits for next models

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