Brother International KM-430B Network Users Manual - English - Page 28

VERTICAL

SHAFT

1.

Roller

holder

lever

position

adjustment

0

0

O

-

0

With

the

machine

at

the

stop

position

(roller

0

riding

on

the

projected

part

on

the

periphery

of

the

feed

cam),

loosen

bolt

0

anLl

move

roller

holder

0

to

adjust

the

clearance

between

clutch

cam

lever

roller

and

roller

holder

mm.

2.

Worm

wheel

backlash

adjustment

With

the

machine

at

the

stop

position,

loosen

six

screws

0

for

worm

0,

and

move

worm

0

so

that

worm

wheel

0

has

a

play

of

0.02

to

0.05

mm

when

the

clutch

cam,

or

the

knife

cam

is

gently

moved

by

hand.

Play

increases

if

worm

0

is

moved

in

the

forward

direction

of

the

machine,

or

decreases

if

the

worm

is

moved

backward.

After

this

adjustment,

check

the

timing

of

the

needle

and

feed;

the

position

and

timing

of

the

movable

knife;

and

the

clutch

cam

timing.

*

After

this

adjustment,

turn

the

machine

by

one

cycle

and

make

sure

that

the

worm

wheel

turns

smoothly.

3.

Change

gear

backlash

adjustment

V

r

—0

L

ess

More

O

aa

Loosen

screw

and

turn

cam

shaft

0

to

adjust

the

change

gear

to

have

a

play

of

0.02

to

0.05

mm

when

the

feed

cam

is

turned

just

so

much

as

to

be

free

of

vertical

shaft

play

with

the

machine

at

the

stop

position.

*

After

this

adjustment,

turn

the

machine

by

one

cycle

and

make

sure

that

the

machine

runs

smoothly.

Brother International KM-430B Network Users Manual - English - Page 28

decreases

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