WEBSTER CHICAGO 79 - Page 12

36 pages

Save Page as PDF

To Next Page

To Next Page

To Previous Page

To Previous Page

Loading...

WEBSTER

CHICAGO

the cover, carefully

cut

wire

fouled

around

brake,

brackets

or

drum

and

carefully

re-

move,

unwinding

counter

clockwise

or

con-

trary

to

the

direction

in

which

it

is

wound.

DO

NOT

pull

wire

when

it

is

caught

on

anything

as

damage

may

be

done

to

the

mechanism.

Where

the

wire

has

been

allowed

to

get

under

the

chuck

of

the

wire

supply

spool,

cut

the

wire

where

it

goes

under,

remove

the

supply

spool,

remove

the cover,

care-

fully

cut

the

wire

or

wires

that

may

be

around

the

chuck

and

remove.

P -

BRAKES

A -

memory

-

brake

system

to

control

the

feeding

of

the

wire

is

tied

in

with

the

control

lever (

Illustration

59,

Fig.

14).

When

this

lever

is

moved

from

its "

Stop

-

position

to

its

"Run

-

position,

a

light

brake

is

applied

to

the

supply

chuck (

Illustrations

55

and

18,

Figs.

14, 15,

16).

When

the control

lever

is

returned

to

the "

Stop

-

position,

a

heavy

brake

is

applied

to

the

same

chuck

and

a

light

brake

applied

to

the

take-up

drum.

(See

Figs.

17, 18).

When

the

lever

is

moved

to "

Rewind

-

the

brake

is

removed

from

the

supply

chuck

and

a

light

brake

is

applied

to

the

take-up

drum.

(Figs.

19,

20).

Returning

it

to "

Stop"

applies

BULLETIN

79P038

MODEL

79

AND

MODEL

80

a

heavy

brake

to

the

take-up

drum

and

a

light

brake

to

the

rewind

chuck. (

Figs.

21,

22).

Q -

UNEVEN

SPEED

IN

RECORDING

With

the

control

lever

in

the "

Run

position,

check

the

brake

adjustment

on

the

supply

chuck. (

Fig.

13).

If

the

tension

is

too

heavy,

the

wire

will

feed

too

slowly

with

resulting

slow

speed.

To

adjust

the

brake,

bend

the

base

plate

lug

to

which

the

tension

spring (

Figs.

14,

15,

16)

is

attached.

In

extreme

cases,

slightly

bend

the

brake

lever (

Illustration

74,

Fig.

14).

When

properly

adjusted,

the

upright

flange

of

the

left

brake

lever (

74)

should

be

ap-

proximately

centered

in

the

slot

of

the

left

brake

shoe

assembly. (

67),

Fig.

14.

R -

WIRE

FEEDS

TOO

FAST

AND

SPILLS

WHEN

RECORDING

This

indicates

insufficient

brake

tension

on

the

supply

spool,

permitting

it

to

overrun

the

take-up

drum.

Adjust

as

explained

in

Figs.

15,

16.

S -

WIRE

FEEDS

TOO

FAST

AND

SPILLS

WHEN

REWINDING

This

indicates

insufficient

brake

tension

on

the

take-up

drum.

Adjust

brake

on

take-up

drum. (

Figs.

19,

20).

9