UNITRA ZK 246 - Page 8

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2.3.

Renioval

of

Bridge

To

remove

the

Bridge

(5),

if

necessary:

——

undo

three

screws

(1)

—

disengage

the

pushers

from

the

pusthbut-

tons

’START”

(2)

and

"QUICK

STOP”

(3)

and

from

the

brake

"QUICK

STOP”

(4),

—

lift

the

bridge

(5)

so as

to

release

the

fly-

wheel

shaft

(6)

from

the

upper

bearing

(7),

—

move

the

forward

windifig

driven

wheel

(8)

back

in

the

direction

of

arrow

so as

to

make

it

withdrawable

from

under

the

turntable

(9),

—

remove

the

bridge

(5)

from

the

supporting

plate.

With

the

bridge

removed,

it

is

possible

to

re-

place

the

flywheel

(12),

the

forward

winding

“driving

wheel

and

the

mechanism

lever’

—

all

Ss

these

elements

are

accommodated

under

the

bridge

plate.

Fig.

6

4

Replacement

of

t

Speed

Control.

Cam

To:

‘replace

the:

speed

contrat:

‘cam,

‘remove

‘the

leap-

-wheel.

bar,

undo

‘the

|

screw:

2),

‘take

off.

lever

(1)

and

remove

the

cam.

2.5.

Removal

of

Printed

Circuit

Boards

To

remove

the

printed

circuit

boards

(1),

dis-

connect

the

wrapping

connectors

of

sliding

pushers

(2)

and

bend

the

clamps

(3)

aside.

After

reassembling

the

printed

circuit

boards,

adjust

the

stroke

of

switches

by

bending

the

wrapping

connectors

(2).

Fig.

8