Brother DB2-B792 Instruction Manual

INSTRUCTION

FOR

BROTHER

SINGLE ADJUSTABLE LOCK

NEEDLE

STITCH

TOP

MACHINE

MANUAL

082-8792

AND

BOTTOM

FEED

Ill

Th

ank you very much

pur

cha

se machine The se

wing machine depend s, a b on Be followi

of a BROTH

.

full pe

correct op

sure to

ng ins

rform

eration.

care

tructions before use.

ance

of your

fully read

for your

ER sewing

new

ove

all,

the

NAMES

0 Nee

dle bar

f)

Presser-regulati on

0

Thread retain

(

HOW

TO INSTALL THE

OF

er

MAIN

thumb

PARTS

0

scr

ew

0 Pulley 0 Fee

MACHINE

Pr

e-t

d-r

ens

ion

everse lever

DB2-

B792

Usc

Sewing speed

Maximum stitch length Maximum upper Presser foot heig

(Knee lifter)

Feed

dog

ccdlc

Usc gau

ge

Shirring device

feed

ht

height

amou

-

003

For medium materials

nt

Group A I

--------1

I

4500 spm

4

mm

6

mm

Group B

- 013

10

mm

0.8

mm

DB X I

In

cluded

- 015

Gathering

3500 spm

5

mm

8

mm

Group L

)

Table

* Fit the h

at the

* When yo u u

(

ADJUSTMENT

* L

pusher

*

Wh the oil

ead

hinges 0 in the table slot, fit it to

four corners.

se mode

oosen th

e nut and a

bar

f)

en you push the knee pad, loosen the nut

pan

and

l DB2- 8792- 013, 015 (p

OF

THE

dju

st

the left knee lifter

.

the knee lifter 0 .

KNEE

the

rubb

er hinge base

eda

l sys tem), please make a hole

LIFTER

stoppe

and

STOPPER

rO

so

that there

adjust the right knee lifter st

- 1-

is a

f)

of

bout

the tabl

2mm clea

oppe

e,

and then place

for

chain

rance betw

rO

so that

the head onto the

as show

n on the figure

een the knee lifter 0

there

is

about I

rubb

mm cleara

er

pad

above

.

and

knee lifter

nce between

s 0

)

[

HOW

TO

INSTALL THE BELT

COVERS

Stud

(black)

Spring

wash

er

I. Scr

ew

2.

Screw

3.

Temporarily

white s

4.

Install belt

left.

5.

Install

•

When insta

the black the

white stud

tighten

tud.

cove

belt

cover

lling belt

stud

r U

U with

with

cover

into

the

back

into

the

machine head.

screw A and

screw A as

screw B and

U, please

of

the

machine

the spring

shown

in

the

spr

bring

down

washer

the

figure

ing

the

head

to

at

washer.

machine.

.

the

HOW

TO

INSTALL THE BOBBIN

WINDER

6. Install belt

•

*

)

(

HOW

cover

When

installing belt

When replacing

D with screws

cover

the belt,

D, pl

rem

and

ease

ove belt

washers. set up

the

cover

U.

TO INSTALL THE SPOOL HOLDER BASE )

machine.

* Install

the

(Ins tall it

bobbin wind

so

that

the

er 0 to

bobbin winder

the

tabl

e with

two

pulley 0 will

screws

not

slip.)

f)

.

• Install the with screws

spool

- 2 -

f)

holder

.

base 0

at

the

right

corner of

the

table

[ LUBRICATION

1 . Lubrication

( I) Supply oil slowly

If the o

il

level falls bel

oi

l.

to

the

ow

mark

the

at

the left ("HIG H").

mark

at the right

("LOW"), add

ADJUSTMENT

OF OIL SUPPLY

AMOUNT

(2) If the o

oil cover

(3) Wipe

* Use

2. Oiling

* Before using

o

TO

ARM

* Re

sh

Lower

*

hook

il

becomes

sc

away

th

e oil specified

il

to

the

SHAFT

mo

ve

the f

aft

by

turning

the head

by

turni

contaminated,

rew G.

contaminat

the

mach

point

ind

icated by th e

AND

ace plate, and

the scr

, and adju

ng the scr

ion fr

om

by

BROTHER:

ine,

be

sure to supply one

ROTATING

adju

ew

0 .

st the lubri

ew

G.

rem

ove

the

oil

cap

the magnet

arrow

f)

Hi-White 70.

or

.

HOOK

st the lubrication

cation for the

0 and

.

two

for

drop

the

rotat

th

of

arm

ing

e

€1D

More oil

ROTATION

CID

Le

ss oil

DIRECTION

OF

THE

MACHINE

- 3 -

* The

*

* When

correct

co

unterclockwise as viewed

Press

th

e belt 0 ,

G so th at

the

mach

rota

and

belt

ine

can

runs id

ting direct

ion

from

the pulley side.

adjust the belt

be

pushed

le, be sure to raise the

ten

inward

of

the m

sion by

about

achine

turn

ing the nut

15 - 20mm.

presser foot.

)

is

* Insert the needle 0 all the way, making sure that the long

of

groove screw

the needle

8.

is

at

the left, and tighten by using the set

iJif:f>wiliQJ•fB1~Jl\11§)._~fi

(I)

Raise the needle above the needle plate.

(2)

After lifting the latch of the bobbin case bobbin case.

(3)

The bobbin 8 will come

m_f.liE:·-~a~o:~JIJ:t:Nc:~~~;

-

.....

_

---~

--"''

-.

- -

-·

·-· ·-·

0,

remove the

out

when the latch

is

released.

J

Delivery eye

(I)

Fit the bobbin 0 onto the bobbin winder spindle

(2)

Push the bobbin winder stop latch 8 completely upward.

(3)

After winding the thread around the bobbin 0 a

the direction

(4)

If

the thread cannot be wound evenly, adjust the bobbin winder tension bracket loosening the set screw

* To wind more thread on the bobbin

screw

Raise thread take-up to its highest position

0.

of

the arrow, operate the machine.

8 by moving it to the left

0.

0,

tighten the adjustment

few

or

8.

times in

right after

(I) Insert the bobbin into the bobbin case. (2)

Pass the thread through the slot 0 and under the tension

8.

spring

(3)

Pull

out

the thread from the delivery eye

tension spring

8.

at

one end

of

the

J

-4-

(

THREAD

o-

TENSION

~

* Adjust the screw 0

when it is suspe nd

*

Adjust the tensio n

so

that

the lower thread tension is

ed

by holding the

of

the

upper

end

of

thread with

Stitches tension

Stitches

-

tension

I

deal seam

-

the lower

the tension

when

is

too

loose

when

is too

tight

just strong

thread.

control nut

upper thread

upper

thr

ead

enough to

f)

as shown

prevent the bo

in the figure

bbin

above

case

More

tension

from

falling by its

after

lowering the presser foot.

own

weig

J

ht

Ill Thread

*

The

~ lOmm.

The standard

*

To the

*

To

sl

[

~_A_D_J_U_S_T_M_E_N_T_O

__

F_P_R_E_S_S_E_R

_F_O_O_T

__

PR

__

Es_s_u_R

__ E __

*

Th

possible necessary,

* Loosen the

Nut

adju

upper

adjust

ot

sta

nda rd op

of

the

take-up

st the

spring

era

ting

range of

ten

sion

is 25 ~ 30

operat

ing range, loosen

thread

tension assembly.

the tension, in

tension stud 0 , and tu

sert

the tip

the

thread

grams.

of

rn

it

__________________________

e press

ure

on

materials

but

still

by

using the adjus t

adjustment

enough

nut

dur

ing sewing must be

to prevent slippage. Adjust,

ment

screw 0 .

before

adjusti

take-up

the

scr

ew

f)

a screwdriver

as

necessary.

as

ng.

spring is 7

and

turn

into

the

~

weak

as

)

if

(

ADJUSTMENT

OF

UPPER

FEED

PRESSURE

- 5 -

* Adjust the

upp

er

material fi

If

you

efficiency will be increased.

If

you

decrea

* Be s

because, if causing

upper

feed dial 0 so

rmly

make

the u

make

it weaker,

se

d.

ure not

to

it

is,

th

e material

feed pressure by t

that

the

upp

and

securel

y.

pper

feed pressure stronger, the

the

upper

make

the

upper

the

upper

feed

dog will li

to

slip.

urning

the

adjustmen

er

feed

dog

will feed

upp

feed efficiency will be

feed pressure too st

ft

the

presser foot,

)

t

the

er feed

rong,