IBM C-1 Customer Engineering Reference Manual

IBM

ELECTRIC TYPEWRITER

MODEL

CUSTOMER ENGINEERING

REFERENCE MANUAL

Mechanical Principles

CONTENTS

NelV JPeatures _________________________________ 3

Case

and

~otor

Keylevers,

Resilient

~aper.nent

Space ldargin !4argbl Line

Carriage

Paper I>ecelerator ___________________________________ 22 Tabulation Backspace

-Carriage

Shut

Ribbon, Ribbon,

Covers

and

])rive Letter

Keyboard

Bar

_____________________________________ Reset Release

Lock

_____________________________________

and

Feed

Return

_________________________________________

Carbon

Fabric

______________________________ 3

____

~__________________________

Cams,

___________________________________

Rails _____________________________ 18

____________________________________

___________________________________ 25

____________________________________ 30

Control

__________________________________ 15

________________________________ 16

and

Line

________________________________ 36 ________________________________ 39

C-l

and

Adjustments

Type

Bars

____________ 7

____________________ 10

Space

_______________ 31

P"g.

34

•

11 13

17

21

:INTERNATIONAL

NelV

Form

241-5002-0

BUSINESS

York

22, NelV

(this

MACHINES

York

section

only)

CORP.

/

INTERNATIONAL

590

MADISON A VENUE.

Printed

BUSu\ESS

NEW

In

U. S.

Form

241-5002-0

MACHINES CORP.·

YORK

22.

NEW

A.

1958

YOBK

(

I

IBM ELECTRIC

STANDARD TYPEWRITER

MODEL

This Model above.

APPEARANCE.

been tional

DECELERATOR.

quiets riage operate

RESILIENT KEYBOARD CONTROL.

pos~tions

mits

individual

SHIFT.

operation

MARGIN RESET.

been malfunction

PLATEN

enclosed

RIBBON

feed provide feeding.

RIBBON

bon typewriter easier

CARRIAGE.

in

section

C1

completely

and

the

return

during

the

The

made

within

mechanism

cleaner,

mechanism

threading

13, 17, 20, 24

describes

typewriter,

The

case

redesigned

aesthetic

carriage

by

spring operator

requirements.

and

easier

eliminated.

RATCHET.

MECHANISM-FABRIC.

MECHANISM-CARBON.

case

enabling

either

fingers

to

shift

the

has

faster

is

and

The

and

The

action

mechanism adjustments

The

to

completely

Model C

improvements.

operation.

set

operate

left-hand

been

has more

30

C-l

the

serial

numbers

and

to

decelerator

during

the

centrifugal

under

the

touch

margin

and

The

platen

carriage-end

completely

ribbon

been

accurate

inch

changing,

typewriter

carriage

new

features

cover

include

tabulation

key

to

has

been simplified. reset

the

ratchet

7he

The

contained

improved

feeding.

of

1,100,000

sections

many

improves

and

governor

This

levers

suit his

mechanism

lengths.

control

and

or

improved

possibility

has cover.

fabric

and

carbon

within

to

is

available

ribbon

positive

provide

redesigned

the

and

have

func-

and

car-

to

per-

her

in

has

of

been

to

rib-

the

CASE AND COVER SECTIONS

The

typewriter

tion

or

case

and

Bristo

Four

shell. A

is

down

corner

in

the

are

rubber

with

screws

tom section latched front Lugs Carriage-end tons by

rear two

hinged

over

of

bottom

covers

secured

mounts,

is

contained cover-section long

to

the

keyplate

bottom

case-section

contain

over

inside

of

in a bottom

screws.

bottom

case-section

anchor

the

carriage-release

each

the

end

screwed

3

mounts

The

front

case-section

by a latch

the

end

of

the

covers.

to

the

case-sec-

to

the

bot-

cover-

and

at

each

(Figure

typewriter

1).

keyplate.

but-

carriage

MODEl

CI

CUSTOMER ENGINEERING

side frames through mcunts. This gives ing when in desk

and

ing.

A locking chors the

desk. By sliding machine removed from

A removable bottom case section This

panel ments working

the

typewriter

the

typewriter

may

and

may also

on

set

into

bottom case

its

case

bar

be

the

and

can

be

the

machine.

the

bottom case. Base feet pass

and

the

typewriter

and

when

inside

to two desk mounts, secured to

the

quickly

desk.

panel

serves

easily removed

be

used

screw into

provides protection

it

the

locking

and

to

a resilient mount-

is removed

bottom case-section

easily attached to

slides into protect

to

protect

bar

the

to

make

the

for

laterally

the

typewriter.

desk

r~

I .. '

rubber

to

the

servic-

anthe

bottom-

adjuat-

whell

.'

...

---

or

Figll"

1.

CdS'

"nil

COfl81'

Meeh""isfIJ

Removal

CASE

aDeI

COVERS

1.

Release

2.

Remove

mounting screws. (

3.

Disconnect sembly, the

C clips

the

front cover.

the

on

each side

and

front

rear

the

hinges from

pushing

cover-latch

cover by removing

of

in

the

on

4

••

the

ann

machine,

the

arms,

and

shatt

by

remcwinl

and

its

w..

u-

remove

REFERENCE

4.

Remove

MANUAL

the mounting-brackets keyplate.

5. Disconnect

separating

6.

Turn

base

feet,

free

of

the

CARRIAGE roll-release,

two

end-cover

TOP

PAPER

the

male

the

machine

and

allow

base section.

END

or

detent-release

mounting-screws.

TABLE.

ward.

CASE

and

1.

KEYPLATE.

COVERS

mounting-brackets

front

case-section smoothly.

operate

2. tion

section

The

freely

HINGES.

when

the

to

clear

front

case

without

Adjust

latches

shall

raiserl position .

.3. LATCHES.

keyplate

and

line

and

up

the

by

raising

cord

female

on

its back.

power

removing

the

at

COVERS. Remove

lever

Pull

the

rear

Adjustments

Adjust

the

Adjust

so

that binding.

so

there

are

bottom

not

by

forming

the

The

is sufficient

released

case

contact by

positioning

the

front

the

typewriter

plug.

unscrew

frame

the

platen.

and

edie

the

keyplate

keybuttons

for

the

at

the

bail

MODEl

keyplate

edge

of

the

to

tip

loosen

up

and

keyplate

joins

vertical

front

roll

in

the

Cl

the

by

four

back

feed-

the

for-

the

shall

mo-

case-

edge.

full

latch

Latch

Figure 2. Front Cover Latch

5

MODEl

Cl

CUSTOMER

ENGINEERING

mounting the

~2"-O.

the (Figure

4.

ance of

%2"

The

main

bracket

front-case-section

There

front

and

2).

PLATEN

between

to

3i14".

motor, drive,

essentially B machine. simplify

removal

conform to

The

motor space for The the to

simplify

ring

left

rear-rail

mount

mounting

so

that

the

latches

by

shall

be a maximum

bottom

KNOBS.

the

left

case-sections

Adjust

and

stock

to

right

MOTOR AND DRIVE

and

the

Changes

the

new

is a

is

motor

and

new

the has

removal

electrical

same

in

operation

have

been

adjustment

case design.

3" design

mechanisms

same

as

been

placed on

procedures

and

the

bottom

thickness

of

when

have

carriage-end

~"

equal

against

plus

between

latched

clear-

covers

mechanisms

as

the

in

allow

save

Model

design

and

more

weight.

made

procedures,

used

to

Model B; however,

the

rear

(Figure

frame

3).

re-

to to

CAUTION:

motor,

LINE

The

drive,

CORD

line

cord

SwItch

IndIcator

Figul'e 3. Motol' and Dl'ive

Removal

Unplug

and

is

machine

when

electrical components.

removable

by

means

6

servicing

the-

of a pluggable

(

REFERENCE

unit

attached

slot

low

CAUTION: installing,

MANUAL MODEl

to

the

rear

in

the

Plug

to

prevent

rear

must

frame. Access

portion

be

properly

of

possible shock

MOTOR

1.

Remove complete case

2. Remove screw

3. Disconnect lever

4.

Remove

rear

frame

and

rear

from

spring,

frame.

the

to

and

the

belts

left

the

the six

side-frame.

side frames,

and

the

tab-lever

tab-set

mounting

and

SWITCH

The

switch frame disconnecting

by

removing

may

the

be

removed

the

rear

switch

cover,

wiring.

POWER ROLL

1.

Remove complete case

2.

Refer

to

Model

The

lower

Note: longer ribbon

and mechanism.

power-roll-bearing-retainer

serves

BI, also as a

and

Power

Adjustments

1.

SWITCH.

Adjustment

2.

BEARINGS.

Adjustment

3. POWER ROLL END PLAY. Motor

and

4. DRIVEN BELT. Drive,

5. tor

6. Drive,

Adjustment

POWER ROLL SPEED.

and

DRIVE BELT.

Adjustment

7. MOTOR MOUNTINGS. justed

without

bottom

screws

and

Refer

1.

Refer

2.

Drive,

Adjustment

removing

case-section

repositioning

to

Refer

4.

Refer

6.

Model

to

Model

by

the

to

Refer

5.

to

Belt

the

loosening

motor.

the

bottom

seated,

hazard.

cover sections.

is

belt

tension

spring,

and

tab-clear

studs

remove

from

the

switch

cover

tab-actuating-

links.

that

right

sections.

Roll Removal.

spring

BI,

anchor

Motor

Refer

and

to

and

Model

3. Model

Model

BI.

to

Model BI.

tension

Motor

may

typewriter

the

Cl

through case.

when

re-

adjusting-

hold

the

motor

side-

nut,

and

screw

for

the

Drive. Drive.

BI,

and

BI,

Mo-

and

be

ad-

from

the

mounting

a

is

KEYLEVERS,C~S,TYPEBARS

The

keylever, cam.

Model C

is

B. However,

theoretically

the

and

typebar

the

same

keylevers, cams,

'I

operation as

and

trip

on

the

levers

of

the

Model

have,

MODEl

been ration. previous

underscore provided either

lever-bearing crum ing frames keylever

slightly

An

86

The

rod

support.

Cl

These

model or

as

position

keylevers

held

and

to

'ij

redesigned

parts

typewriters.

88

character

is

the

only

standard

39

or

are

support

by

formed

The

assembly

is

adjustable

trip

lever

CUSTOMER ENGINEERING

in

order

to

are

not

keyboard

repeat/non-repeat

equipment

41.

mounted

and

fulcrum

lugs in

clearance

improve

interchangeable

is

available.

and

is

available

in a redesigned

on a heavier

in

the

is

order

keylever-bear-

mounted

to

(Figure

to

obtain

4).

letter

their

the

proper

o~

with

The

key

in

key-

ful-

side

\-CIiP

PiK,,'e

4.

Keylefler Bearing

Each

row

of

spring. color coded for easy identification,

uniform so shift sition.

the guide-comb available

. only.

been with

touch.

that

all

are

Redesign

spring-loaded

Repeat/non-repeat

altered

a single piece

keylevers

The

functional

locked

of

the

to

be

for

carriage

by

replacing

when

repeat

plunger

redesigned.

keylever

has a different

keylever

and

letter

the

switch

letter

has

return,

letter

the

8

SII/Jpo,t

locking

containing

bar

keylevers

is

in

keylever

caused

Plunger

tab,

and

key

spring-loaded

operation

restoring

to

provide

is designed

except

the

OFF

to

eliminate

the

key

positions

an

lever

backspace

plunger

elongated

the po-

are

has

.£FERENCE MANUAL

MODEl

Cl

fulcrum-rod keylever (Figure operation the the places erating

If

sired

keylever

The

operation

and a spring

5). . takes

resistance

fulcrum

the

repeat

position.

Figlln 5.

additional

a two-piece

position.

letter

and

models.

KEYLEVEBS

1.

Remove

2.

Remove

3.

Disconnect

4. Remove mounting

5.

6. the

7.

lever

8. and

keylever

9.

studs. Disconnect Insert

desired

a follow-up

keylever.

Remove

guide-comb

Lower

push

the

it

clears

Remove

hole. A

spring

is connected

bracket

As

the

keylever

place. As

of

the

point

upper

of

the

step

of

Rq,_/Non·Rej1UI

more

spring

keylever

the

trip-lever

is

repeat/non-repeat

cam

is

keylever

has

not

may

been

interchan~eable

reshaped

Removal

the

typewriter

the

resilient-keyboard-control

the

spacebar-switch-Iock shaft.

the

front

the

keylever

the

two

and

rear

the

of

the

guide-comb.

keylever

toward

from

frame

spring.

fulcrum

mounting

pivot

the

keylever

rear

of

by

9

by

the

pulling

above

the

keylever

depressed a single

between

pressure

is

applied

is overcome and

lowered.

lug

in

the

K~lwN

letter

cams

for

with

are

in

smoother

be

installed

the

base

indicator.

removing

rod

to

studs

guide-comb

between machine

the

from

the

depth

the

forward.

the

cams

until

forward.

the

This

op-

de-

any

four

of

key-

the

MODEL

Cl

CUSTOMER

ENGINEERING

LETTER

Refer

CAMS

to

Model

Bl,

Cam

Removal

Adjustments

1. CAM CLEARANCE

Bl

section.

2. KEYLEVER sitioning keylevers plus

, guide-comb

or

the

trip

minus

(Figure

key

the

;.64"

3. INDIVIDUAL KEYLEVERS. Raise conform screwdriver

NOTE: Do hammer will

to

as

result.

adjustment

or

compress lugs

not

form

damage

•.

015"

BEARING

lever-bearing

cams

when

from

the

4).

2.

Spread

keylevers

to

the

to

.020".

SUPPORT.

support

the

bottom

key

with

pliers.

with

keylever-bearing

RESILIENT KEYBOARD CONTROL

The

resilient-keyboard

of

the

impression

erator

with a means keylevers resistance

path

of varying settings

travel

are

1. L - No

2.

3.

to

suit

is supplied

of

the

position

available

M -

H -

control

her

the

Some

Maximum

control, located

indicator, provides

of

varying

touch

by

flat keylevers, of

the

to

the

flat

(Figure

springs,

flat

operator:

spring

flat

the

and

springs.

contact. spring

resistance

is

contact.

Procedure.

Refer

to

Adjust

so

that

keylever

of

the

key

or

lower

lever

lugs

"T"

bender

support

to

the

6).

This

mounted

determined

Three

contact.

Model

by

po-

the

is

¥.!2'"

lever

to

with

or

left

op-

of

the added in

the

by

major

Figure

6.

Resilient Keyboard Control

10

REFERENCE

1.

Remove

2.

Remove

SPRING

mounting the

key

:tween

the

FINGERS.

bracket

levers

the

spring

Figure

Escapement

Model C

the

chines pitch, 'pawl same

left-hand

spacer

(F:gure

bracket ed

UNIVERSAL

Removal

ESCAPEMENT

Cl,

machines

.058"

motion

and

the

decimal

and

trip

bracket.

rail-brace,

are

8).

The

has

firmly

to

Procedure.

Tabulation,

part

moval.

MANUAL

Removal

the

resilient

left-hand

keyboa=d

mounting

Adjustment

Adjust

so

that

depressed

fingers

7.

Resilient Keyboard Adjustment

with there

and

by

the

ESCAPEMENT

remains

.038"

tab,

lever

The

horseshoe

been

the

essentially

as

on

pawl

for

motion

and

lift

are

trip

lever

and

of

the

tab-lever-mounting

eliminated rear

rail.

the

Model B.

8, 9, 10,

pawl

platen

no

longer

the

escapement

shaped

and

Removal

BAR.

Refer

to

Model

PAWL

ASSEMBLY.

Tab-Lever-Mounting

11

indicator.

stud.

forming

indicator

is .001"

keylevers

the and

for

the

typewriters.

mounted

is

now a part

tab-lever

the

bracket

Bl,

Refer

MODEl

the

spring-

at

Land

H

to

.010

be-

(Figure

same

on

pawl

pitch

and

the

ma-

The

12

6%

The

on

the

of

the

pawl

and

bracket

mounting-

anchor-

Escapement,

to

Model

Bracket

Re-

Cl

7).

is

14

MODEl

I.

be

injury

riage drum. follQwing

Cl

MAIHSPRING. exercised

resulting

Tension

tension-tape

This

steps:

A.

Position

tab

check-lever

stop

on

B.

Set

C.

Hold

and

latch

D.

Gently

tab-check

Figure

8.Escllpemenl Mech,,,,istn

Adjustments

when

is

adjusted

adjustment

the the

the

CAUTION:

servicing

from a disengaged

on

the

carriage

is

right

end

last

tab-stop.

carriage

the tab

position

lever

and

CUSTOMER

by

placing

various

may

directly

of

to

lever

the

release

12

this

lugs

be

checked

so

opposite

the

rack.

prevent

out.

set

tab-stop

the

ENGINEERING

Extreme

assembly

mainspring.

the

loop

of

the

through

that

the

any

carriage.

care

must

to

avoid

of

the

mainspring

against

car-

the

tip

of

the

last

tab-

movement

the

IE

FE R ENe E MAN

E.

The

sion

to

A push-pull scale

tension

a slow

tion erator

13" Carriage --

in

the

and

to

the

range). Tension shall

U A l

main

unlatch

spring should have suflicient

the

tab.

may

following manner.

steady

extreme

21h

rate

right

lbs. +

from

be

used

to

measure carriage

Pull

the

extreme

position, (excluding decel-

be

as follows:

Jf.&

- 0 Ibs.

lbs. maximum.

17" Carriage --

Ibs. maximum.

H

20

Carriage

lbs. maximum.

J4" Carriage

21h

lbs. +

'14

-0

lbs.

.-

2%

-.

lbs.+

23,4

Ibs. +

Jf.&

- 0 lhs.

¥.&

- 0 Ibs.

Ibs. maximum.

80'" Carriage •• 3 Ibs; +

Ibs. maximum.

2. UNIVERSAL BAR. Refer

Adjustment

men!;

I.

ADJUSTING PLATE ON UNIVERSAL

Refer

to Model

4.

TRIP

LINK:. Refer to Model

Adjustment

2.

Bl,

4.

~

- 0 lbs.

to

Model

~apement.

Adjustment

Bl,

SPACEBAR

The repeat tion release Depression of

spacebar features a controlled

action.

has

link

The

been

connected directly

spacebar cam release-lever rota-

reversed

the

spacebar

to

permit

to

through

the

its

MODEl

tl

ten-

the

at at

at

start

stan

start start

Bl,

carriage

left

start:to

at

posi-

to

3%

to

31h

3%

to

a~

to

,,~

lI:seape-

BAR.

3-

Escapement,

repeat/non·

use

of

a longer

spacebar shaft.

non;nal

travel

PigNr.

Front Fr

...

e

9.

SplU.hllr MechfItJum

18

MODEl

trips as

its frame against

spacebar-stem determines

The second stop is

the

adjustable-shouldered-mounting

elongated holes

and

peat

the

bar spring er

below the switch is

Cl

the

cam

position

by

an

the

spacebar travel

which

by

adjustable support,

is limited

in

previous machines.

rest

Spacebar

stop is fixed

the

upper,

The

repeat

spacebar

slide controls during

in

screw into

slide

repeat

stem

tension

arm

of

A locking

the

switch lever, locking

Spacobar Stam

the

is

spring

stop.

moves

until

the

repeat

bar

spacebar

in

the

During the

is moved horizontally

OFF

CUSTOMER

in

turn

activates

The

a fiat spring,

stem

spacebar

(Figure

by

to

or

rest

mounted

single

the repeat

loaded against

to

repeat

stop

position, of

the or

slide

repeat

the

repeat

slide

slide contacts

stop.

stem,

by

an

the

position.

ENGINEERING

the

escapement

is

which

restored

to

the

bears

mounted

9).

two

rubber

the

repeat

downward

repeat

screws pass

(Figure

the

operation

down

stops.

front

frame

the

spacebar.

slide.

travel

actions. Two

front

10).

upper

through

The

and

the

against

the

to

a position

arm

inclined surface on

spacebar

when

to

front

up

The

and

of

frame,

re-

of

space-

this

low-

the

Figure

10. Repeat Slide Assembly

SPACEBAR. Remove the

plastic spacebar.

CAM.

1.

Remove

2.

Loosen fulcrum pins be

moved

the

typewriter.

3.

Remove indicators.

the

base cover-section.

the

cam-knockout

and

springs.

upward

the

out

resilient

Removal

the

spring

The

knockout

of

the

way,

keyboard

14

bar

retainers

by

removing

bar

or

removed

and

impression

may

inside

the

now

from

REFERENCE MANUAL

4.

Remove

up

out

5.

D:Sconnect

lease link.

6.

Move

to

free

by

a C clip

the

left

of

the

its

the

cam.

side

impression-control

fulcrum

the

operating

operational

The

between

frame.

Adjustments

1.

CAM

clearance screw the on

2. when

rest

3.

ing, so rest

4.

ing bar

contact

s.

ment

reached.

be

CLEARANCE.

at

.010"

(Figure

power

the

CAM-RELEASE

SPRING-RETURN

position.

REPEAT

the

between

OPERATING

no

OFF.

rear

the

keylever

position.

the

spring

mounting

of

the

pawl

With

choking

9).

half

STOP.

the

repeat

just

the

to

Check

The

of

the

will

screws, non-repeat

LINK.

before

cam

off.

has

slots.

cam

left

fulcrum

the

cam

Adjust

.015" using

by

release-lever

cam

lug.

LINK.

slide

Adjust

been

SUPPORT.

just

restore

Adjust

so is

.015"

Adjust

the

high

on

its

shaft

link

and

fulcrum

rod

bearing

cam

the

releasing

so

depressed

Adjust

the

by

vertically

the

travel

tripping

to

.025"

to

point

high

point

MODEL

by

lifting

the

cam

rod

held

sUl}j)ort

to

power

the

should

the

cam

'is"

of

the

point

(Figure

the

of

the

there

enough

in

place

cam

with

trips

from

by

form-

to

position-

space-

and

escape-

cam

should

and

rest

is

adjustable-stop

lug

spacebar

trip

Cl

it

re-

roll

its

the

10). is

MARGIN RESET

The

margin-reset

side-frame

11). A side Depressing causes mounting reset contains a operated the presses slider lows repositioning moved, damage.

and

keylever

frame

the

lever

"V"

the

disengages from

when

fulcrums

spring

holds

the

key-button

margin-reset

in

the

passes in

that position shaped

spring-loaded

the

keylever

the

margin-reset

front

rides

the

margin-reset-Iever

notch

of

the

keylever

is

on a mounting between keylever

raises

lever

of

above

in

the

slider.

the

margin-rack

stop.

is

15

mounted

the

keylever

in

its

the

to

rotate

bracket.

the

margin

the

margin

The

carriage

depressed

to

stud

rest

push

about

The

rack.

stop

teeth

without

the

right

(Figure

and

the

position.

rod

and

margin-

nick

and

In

the

engages

and

de-

on

the

and

al-

may

part

its

be

MODEL

C 1

CUSTOMER

ENGfNEERtIU

Adjustments

1. MARGIN·RESET LEVER.

clevi$ so ance the margin

2. MARGIN-RESET BRACKET·ASSEMBLY. Posi-

tion reset-lever margin

a.

freely

that

with

of

.005"

reset-lever

stop.

left

or

right

stoP.

MARGIN STOPS.

without

the

to

.015" between

on

will

excessive

parts

and

the

rear

center

The

Adjust

at

rest

the

in

margin stops

play

bottom surface

top surface of

rail

so

the

"V" groove of

and

without

there

that

the

pusb-r04

is a clear-

the

margin-

shall

binding.

either

the

operate

of

MARGIN RELEASE

The

margin-release mechanism remains

except for

the

keylever and

new

tab provides positive contact between tuating

the

redesigned actuating lever betwee!l

the

mechanism (Figure 12). The tab-lever spring

lever

and

tab·lever

margin-release lever.

to conform

18

the

tab-lever-ae-

the

with

same

the

REFERENCE MANUAL

Acluating

Lev_er

__

Figure 12. Margin Release

Model

Bl,

the

typewriter

Refer

sary

to

remove

Pivot Stud

Tab

'1II~.a.

Removal

Margin

Release.

Lever

from

It

the

MODEL

is

not

base

Cl

neces-

section.

Adjustment

MARGIN RELEASE ECCENTRIC.

the

margin

The previous conform letter tional when

control

rack

by

line

lock

model

to

the keylevers and

letter

the

switch

lever

.010"

to

LINE

is

essentially (Figure new

rear

when

at

keylevers

is

in

the

clears

.015"

LOCK

13). rail

the

except

OFF

17

the

(Figure

the

It

has

parts

right

the

position.

Adjust

underside

12).

same

been

and

to

margin.

shift

so

of

as

on

altered

lock

All

func-

are

locked.

that

the

to

all

MODEL

Cl

PUSH ROD.

ment

2.

The

carriage

tion

and changes and

flexibility.

Model C lengths: tab-rack anchors margin

14).

lows

llny

operational

have

cover

13", 17", 20", 24"

center-support,

to

rack

It

mounts

the

operator

desired

CUSTOMER

Figure 13. Line Lock

Adjustment

Refer

to

Model

Bl,

Line

CARRIAGE AND RAILS

has

been

section

carriages

the

carriage

where

into

location

retained

characteristics.

made

design

are

it

is

the tab

to

position

on

its

to

conform

and

available

and

on

carriages

and

bridges

attached

rack

any

length

18

box-frame

to

increase

in

30".

The up

at

the

as

before.

either

carriage.

17"

margin

ENGINEERING.

Lock,

Adjust-

construc-

The

following

the

new

case

machine

the

following

margin

and

rear ( Figure

longer,

over

This

stop

and

the

al-

at

IBM C-1 Customer Engineering Reference Manual

Specifications and Main Features

Frequently Asked Questions

User Manual