IBM 01 Operating manual

1.M
TRADE MARK
EtECTRIC TYPEWRITERS
CUSTOMER ENGINEERING REFERENCE MANUAL
'Preventive Maintenance and Adjustments
Inued To
Bronch Office .. Chic.agQ ..... S.o.u.th ......................................... .
DepartMent E ..... .T. •... .Gus.to.me.r. .. Eng ........................... ..
Address .....................;............................................................................
Chicago 20, Illinois
If this Manual is lost or mislaid please return to above addre"
INTERNATIONAL BUSINESS MACHINES CORPORATION
NEW YORK 22, NEW YORK
Form 25·6007-0 (Complete manual, Including binder)

ELECTRIC
TYPEWRITERS
MAINTENANCE
GU IDE
CUSTOMER ENGINEERING REFERENCE MANUAL
CONTENTS
Poge
Impression and Type Alignment ................ 1
Paper Feed ...................................................... 3
Carriage Return ................................................ 3
Motor .................................................................. 5
Noise ...............................................,.................. 5
Shift .................................................................... 6
Tabulation ........................................................ 7
Back Space .. ...................................................... 8
Space Bar .......................................................... 9
INTERNATIONAL BUSINESS MACHINES CORPORATION
NEW YORK 22, NEW YORK
Form 25-6021-1, (this section only)

Copyright, 1953, by
INTERNATIONAL BUSINESS MACHINES CORP.
590 Madison Avenue, New York 22, N. Y.
Printed in USA October, 1954
Form 25-6021-1

ELECTRIC
IBM
TYPEWRITERS
MAINTENANCE GUIDE
THE FOLLOWING Maintenance Guide has been compiled
from the experience of Electric Typewriter Customer Engi-
neers and is presented as an exchange of information. It
is not intended to take the place of any material in the
manuals or memorandums but, rather, to supplement that
material.
IMPRESSION AND TYPE ALIGNMENT
VERY WEAK OR NO IMPRESSION
Multiple copy lever in wrong position.
Ribbon color control button in stencil position.
Wrong platen for thickness of form.
Platen too soft.
Improper power roll speed.
Bind in power roll and drive mechanism.
Ribbon failing to feed properly.
Darker ribbon may be needed.
Oil on ribbon.
Ring and cylinder out of adjustment.
Dirty or glazed power roll. Power roIl may need to
be replaced.
Cam serrations worn at the knockout position. Re-
place cam.
Loose rubber on power roIl.
Improper cam clearance.
Dirt in segment or on type bars in the slots.
Impression indicator set too low.
Universal bar or escapement choking off type bar
action.
Impression control screws set too light.
Type impression may be set too light to avoid
cutting the paper. Polish the type faces per
Section I, page 16.
INTERMITTENT LIGHT IMPRESSION
Dirt in segment.
Non-repeat lug should be removed from the ribbon
cam.
Finger prints or grease on paper, especially if the
machine is equipped with carbon ribbon.
Cam serrations worn at the knockout position. Re-
place cam.
Bind in type bar linkage or type guide.
Misadjustment of type bar.
Worn type bar on universal bar.
Loose platen guide reinforcing plates.
Loose carriage.

C. E. REFERENCE MANUAL
Aluminum cam bearing support slots worn, indicated
by trip lever springs worn off on side adjacent
to next cam lever. Replace cam lever bearing
support.
Eccentric power roll due to loose rubber.
Dirty or glazed power roll. Power roll may need to
be replaced.
LIGHT OR DARK IN ONE CASE ONLY
Place shims under segment guide springs according
to instruction in the manual.
DIFFERENT HEIGHT ON END TYPE BAR
Type bar guide may be leaning to right or left.
OVERPRINTING AND
UNDERPRINTING
Check for light top or bottom.
Check motion.
Improper platen.
Cushion of paper too deep in the form.
Check card holder adjustment.
Check multiple copy lever.
Check ring and cylinder adjustment.
Form card holder or install offset card holder.
TYPE CUTTING
Check power roll speed.
Impression indicator set too high.
Platen too hard.
Check ring and cylinder adjustment.
Type may need polishing. Section 1, page 16.
Impression control screws may require adjustment.
Some papers are brittle and cut too easily. Such
PILING
paper may be reinforced by using a sheet of
tough tissue behind the original or by using a
tough carbon paper.
Insufficient carriage tension.
Improper universal bar adjustment.
Dirt in segment.
Dirt on power roll.
Escapement tripping too late or too early.
Dirt in carriage ways and rails.
Worn type bar.
Broken or worn universal bar.
It is possible for an operator to pile the type by
uneven rhythm or by striking two or more keys
nearly simultaneously.
Strict adherence to adjustment procedures will mini-
mize this occurrence.
2

MAINTENANCE GUIDE
PAPER FEED
CARBON MARKS
Carbon paper too soft.
Paper release lever snapped.
Feed roll bind-too much pressure or lack of grease.
Bent deflectors.
Card holders too close to platen.
Front paper scales bent.
Hard feed rolls.
Snapping the paper bail.
Sand a crown on individual rear feed rolls.
PAPER SLIPPING
Feed roll pressure weak.
Weak actuating shaft.
Weak actuating shaft spring.
Actuating shaft bowed, adjust center support.
Actuating shaft arm side play.
Equalizing rod side play.
Platen side play.
Platen loose at platen yokes.
Feed roll side play.
Feed roll bind-lack of grease or bent deflectors.
Hard feed rolls.
Hard platen.
Dirty feed rolls or platen.
Bail springs.
Plastic back carbon.
PAPER ROLLBACK SLIPPAGE
Hitting rear feed rolls-form guide lip in deflector.
Bail roll bind.
Feed roll tension.
Plastic back carbon.
Check all feed roll slippage pointers.
PAPER AND STENCIL WRINKLING
Slippery stencil backing sheet.
Swollen platen and feed rolls.
Uneven feed roll pressure.
Cockle finish paper.
Bent deflectors.
Check all paper feed pointers.
Sand a crown on individual rear feed rolls.
Install paper ironing bail.
Partial feed roll contact.
CARRIAGE RETURN
FAILS TO OPERATE
Faulty cam link adjustment.
Bind in cam.
3

C. e. REFERENCE MANUAL
Back space pawl may be binding the interlock
which will cause carriage return failure.
INCOMPLETE RETURN (TOGGLE TYPE)
May not have toggle going over center because of
improper adjustments.
Toggle stop out of adjustment.
Lack of lubrication.
INCOMPLETE RETURN (ALL MODELS)
Faulty cam adjustment. (
Escapement pawls pulled too far out of the rack.
Tip of the clutch knockout lever or toggle knockout
lever adjusted too high.
Clutch lever bracket adjusted too loosely.
Nut on compression spring under machine should
be tightened.
INCOMPLETE RETURN (LATCH TYPE)
Lack of tension of the latch spring.
Improper cam link adjustment.
Improper latch adjustment.
CARRIAGE LOCKS (TOGGLE TYPE)
Clutch toggle stop allowing toggle to go too far over
center.
Increase tension on hairpin spring on toggle knock-
out lever.
Toggle linkage adjustment allowing toggle to go too
far over center.
CARRIAGE LOCKS (LATCH TYPE)
Latch link adjustment allows too deep a latch en-
gagement.
Excessive latch spring tension.
CARRIAGE LOCKS (ALL MODELS)
Weak motor.
Bind in power roll and drive mechanism.
Belts slipping.
Tip of clutch knockout lever too low.
Clutch knockout lever link adjusted so knockout
lever is too low.
Margin rack adjustment allows too much overbank.
Clutch lever bracket adjusted too tightly.
Adjusting nut on compression spring adjusted too
tightly.
UNEVEN MARGIN
Margin rack out of adjustment.
Broken tab lever assembly or margin stop.
Escapement pawls sticking or binding.

MAINTENANCE GUIDE
Weak pawl spring.
Failure to group or latch properly in Executive
Typewriters.
Air cylinder.
MOTOR
FAILS TO START OR RUN
Faulty condenser. Check by turning motor by hand.
Faulty motor.
Broken switch.
Switch link improperly adjusted.
Frozen bearing.
Belts too tight.
Excessive end play in armature (DC).
NOISE
TOP COVER VIBRATES
Open cover and spread sides slightly.
REAR COVER VIBRATES
Reposition rear cover.
CARRIAGE END COVERS VIBRATE
Reform spring clips.
PAPER TABLE VIBRATES
Reset positioning collars.
NOISY PAPER BAIL
Check for broken paper bail spring.
Reposition bail rolls on shaft.
NOISY DRIVE
Check motor and pulley lubrication.
Align puIleys.
Replace worn belts.
Adjust belts.
Left-hand fastening screw rubbing on belt.
Check power roll adjustment and lubrication.
Loose power roll torsion spring.
Modell below 34,750
Model 4 below 8,901
Desk or stand may be cause of trouble.
Check other location.
NOISY TYPING
Type bar hitting front scale.
Type bar hitting card holder.
Type rest pad worn.
Platen too hard.
5

C. E. REFERENCE MANUAL
NOISY SHIFT
Broken shift stop bracket.
Broken segment guide.
Cracked bumper on shift pusher.
Shift stop screw rubbing on bracket.
NOISY SPACE BAR
Improper stop bracket adjustment.
Space bar mechanism hitting case.
NOISY TAB
Friction governor link dragging on governor ratchet.
Improper pawl release lever adjustment allowing
escapement pawls to drag.
NOISY CARRIAGE RETURN
Improper adjustment of the eccentric on the pawl
release lever allowing the pawls to drag.
Clutch adjusted to return the carriage too hard.
SHIFT
INCOMPLETE SHIFT
Pusher too high or too low.
Binds in basket or shift mechanism.
Excessive
or uneven pin clearance.
Broken hairpin spring.
Keybutton binding.
FAILS TO SHIFT
Check cam adjustment.
Improper pin clearance.
Pusher too high or too low.
Improper cam link adjustment.
Lack of lubrication.
Cam may be binding.
Shift equalizing rod out of place or warped.
MOTION FAULTY
Improper adjustment of adjusting nuts.
Adjusting lock nuts.
Left and right-hand shift motion adjustments not
made equal. Test with strips of paper between
the stop washers and the brackets in each posi-
tion of the basket.,
Lock nut on stop bracket adjusting screw loose.
Broken stop bracket (basket should rest evenly on
both brackets to prevent breakage).
Broken segment guide.
LIGHT TOP OR ,BOTTOM
Adjust shift stop bracket screws.
6

MAINTENANCE GUIDE
Wrong platen for thickness of form.
Copy control lever set at improper position.
Check platen guide yokes for loose platen.
UPPER AND LOWER CASE IMPRESSION UNEQUAL
FROM SHIFTING OFF CYLINDER
Install shims under the segment guides according to
the instructions in the manual.
SLOW OR BOUNCING SHIFT
Improper cam adjustment.
Improper pin clearance.
Improper pusher adjustment.
Broken pusher buffer.
See that operator is not "beating the shift."
Power roll glazed.
Cam bind.
Worn cam.
Loose V belts.
TABULATION
FAILS TO OPERATE OR: TABULATES
ONLY A FEW SPACES
Improper cam adjustment.
Fractured cam or link.
Improper key lever link adjustment.
T~b lever not being pulled far enough to latch.
Linkage too long.
Improper latch adjustment.
Improper latch stop adjustment.
Tab lever binding on margin rack.
Bind in tab lever fulcrum.
Improper tab rack adjustment which may cause tab
lever to strike tab stop.
Tab lever binding with tab rebound check lever
either at the stud or at the tip of the tab lever.
Tab lever stop on rear rail set too far forward.
Friction governor adjustment may be faulty, causing
a bind.
Weak tab lever spring may prevent tab lever from
restoring properly.
Back space pawl may be binding the back space
interlock which will cause tab failure.
Lack of lubrication.
TABULATES SHORT
Tab rebound check lever has excessive clearance with
the tab stop.
Worn tab stop.
Tab lever moving too far into the tab rack.
Tab lever binding on the margin rack.
Bind in the tab lever.
7

C. E. REFERENCE MANUAL
Improper latch stop adjustment, allowing excessive
clearance
between tab lever and tab rack.
Friction governor too tight.
Insufficient carriage tension.
Tab stop not completely set.
See that the operator is not beating the tabular
operation. This would appear as tabulating short
by less than a full space.
Rebound check lever may be too low and passing
under the tab stop or may have excessive clear-
ance with the tab stop.
TABULATES EXTRA SPACES
Tab lever not getting sufficient bite on the tab stop.
Friction governor too loose.
Excessive
carriage tension.
Tab stop improperly set.
CARRIAGE LOCKING
Tab rebound Check lever holding tab stop too tightly.
Improper latch adjustment not allowing tab lever
to unlatch.
Friction governor too tight not allowing the tab
lever to knock off.
Rebound check lever too high, catching and holding
the tab lever out.
BACK SPACE
FAILS TO OPERATE
Bind in cam.
Improper cam adjustment.
Bind in linkage.
Broken,
bent or improperly adjusted guide lug.
Fractured cam or links.
Broken escapement spring or comer bell crank spring.
Final stop adjusted too close.
Adjust height of back space pawl.
Interlock binding or interfering with back space
pawl.
Binding keybutton.
Glazed power roll.
BACKS TWO SPACES
Cam repeats.
Excessive play in linkage.
Improper final stop adjustment.
Improper guide lug adjustment.
INTERMITTENT FAILURE
Lack of lubrication on back space pawl.
Improper cam adjustment.
Fractured cam.
8
(

MAINTENANCE GUIDE
Excessive play in linkage.
Improper final stop adjustment.
Improper guide lug adjustment.
Adjust height of back space pawl.
SPACE BAR
FAILS TO OPERATE
Check cam adjustment.
Bind in cam.
Space bar binding on cover.
Improper stop bracket adjustment.
Improper cam link adjustment.
Spring on escapement lever plate loose or stretched.
Improper escapement link adjustment.
REPEATING
Faulty cam (do not confuse with need for stop
bracket or cam link adjustment.)
Stop bracket adjustment too low.
Improper cam link adjustment.
Operator may be operating the space bar twice.
9

ElECTRIC TYPEW.RITERS
MODEl 01
Preventive Maintenance and Adjustments
CUSTOMER. ENGINEERING REFERENCE MANUAL
,.
Preventive Maintenance and Adjustments
CONTENTS Page
Motor and Electrical Parts 3
Power Frame Removal 4
Gear Drive and Power Roll 5
Key Levers
6
Cams
7
Type Bars
8
Bell Cranks
10
Escapement
11
Space Bar Mechanism
14
Carriage and Rails
15
Paper Feed
17
Shift Mechanism
18
Carriage Return and Line Space 22
Tabular Mechanism
30
Backspace Mechanism 37
Ribbon Feed Mechanism 42
INTERNATIONAL BUSINESS MACHINES CORP.
NEW YORK 22, NEW YORK
Form No. 25-6619-0 (This section only)

Copyright 1955 by
International Business Machines Corp.
590 Madison Avenue, New York 22, New York
Printed in U.S.A. February, 1955
Form 25-6619-0

IBM ELECTRIC STANDARD TYPEWRITER
Model 01
MOTOR AND ELECTRICAL PARTS
THE MOTOR used in the model 01 typewriter is rated at
1/60 HP and uses 65 watts of power. All motors whether
AC or DC are series wound and governor controlled
(Figure 1).
DC MOTORS are marked by a stripe of red paint; The name
plate of an AC motor will always have the frequency rating
marked.
Using an AC motor on DC current will cause the governor
points to pit rapidly. If a DC motor is run on AC current
it will overheat and lose power.
IBM MOTORS require a front mounting bracket. When
replacing other types with an IBM motor it may be neces-
sary to drill holes in the machine base to accomodate the
mounting bracket screws. Use template 9522944 to locate
these holes.
When selecting motors for replacement, regard should be
given to voltage, and to frequency if AC. Consult the Parts
Catalogue for specifications and the pocket parts price list
for wiring diagrams.
THERMOGUARD PROTECTED MOTORS. The late model 01
motors of all types are equipped with a thermoguard de-
signed to break the circuit when the motor becomes over-
heated. One minute allows the motor to cool sufficiently to
again establish contact. A thermo guard is present ill a
motor if the patent plate is located on the motor instead of
on the machine base.
Field
250 n
stack
Figure 1. Wiring Diagram
3
Red
)

MODEL 01
CUSTOMER ENGINEERING
CONDENSER AND RESISTOR A.SSEMBL Y. The resistor, to-
gether with the condenser, reduces arcing across the governor
contact points. The condenser box contains two condensers. (
One acts with the resistor to protect the governor points.
The other reduces arcing between the motor brushes and
the commutator. Under DC operation, the latter condenser
must be sacrificed to protect adjacent electrical instruments.
Simply disconnect and tape the black condenser lead.
If the resistor fails, it will not warm when the motor is
running. Failure of the condenser results in high arcing at (
the points, causing them to pit rapidly.
RADIO FILTER. The radio filter eliminates radio inter-
ference whenever the typewriter is installed near a radio
receiver or a broadcasting station. The wiring diagram for
this hook-up is shown in the pocket parts price list. Motors
used with the radio filter have built-in choke coils and
condenser and can be identified by the letter "F" stenciled
on the motor housing.
THE SWITCH turns the power on or off and, through a
locking bar, keeps the keys from being depressed when the
switch is off. Poor electrical contact may often be traced to
a weak or broken switch spring which can be replaced.
Maintenance
LUBRICATE THE MOTOR BEARINGS with six or eight drops
of mM ET oil at each inspection or every three months.
ARMATURE END PLAY must be kept to .005" by use of
shim washers.
MOTOR BRUSHES must be installed in exactly the same
• manner ip which they are removed. Mark them left, right,
top, and bottom when removing. New motor brushes may
be noisy until they wear in.
Mark on the motor or terminal block the date when motor (
brushes are replaced or checked. If replaced. the motor
brushes need not be inspected for a year; but if only checked,
they should be re-checked in six months. This procedure will
save on inspection time and also insure that the brushes
do not wear down to the springs.
Carbon dust must be cleaned from the brushes and brush
holders because it may lower the resistance of the motor.
Loss of power and overheating will result.
POWER FRAME REMOVAL
Power frame removal will be necessary to replace or \
repair the following:
Ribbon lift bar
Shift actuating levers assembly
Shift T-Iever head assembly
4 J

REFERENCE MANUAL
MODEL 01
REMOVAL PROCEDURE:
1. Disconnect motor wiring at terminal block.
2. Remove switch.
3. Remove condenser and resistor.
4. Disconnect return and tension tapes.
5. Disassemble clutch and clutch pulley.
6. Remove operating arm and link to carriage return
cam. (Note that link enters from rear.)
7. Remove motor and worm housing assemblies-together.
8. Remove the governor link. (Note that link enters
from left-hand side.)
9. Disconnect tab operating link.
10. Disconnect backspace operating link.
11. Remove escapement trip link and spring.
12. Remove tab set and clear links.
13. Remove ribbon reverse springs and ribbon.
14. Remove front and rear cover plates.
15. Remove three remaining power frame screws.
16. Swing power frame part way out of base. Avoid bend-
ing the pin on the left-hand end of the key lock bar
and the side clutch knockout lever on the right.
GEAR DRIVE AND POWER ROLL
Gear Drive
The worm drive and clutch assembly provide speed re-
duction between the motor and the power roll to return the
carriage and index the platen. The standard gear reduction
is 12 to 1.
ADJUSTMENT OF WORM END PLAY. Loosen the bottom
set screw. With the motor running, tum the thrust adjusting
screw until the motor is stalled and all end play is elimi-
nated; then turn the screw back % of a turn and retighten
the set screw (Figure 2).
Worm Shaff
Worm Wheel
Shaft
Figure 2. Worm Housing Assembly
5

MODel 01
CUSTOMER ENGINEERING
LUBRICATE, using only IBM non-fluid oil in packing the
housing. It should be necessary to repack the housing only
when overhauling the machine. Make sure there is lubrica-
tion between the thrust screw and the end of the worm shaft (
to prevent a whistling squeak.
Power Roll
The power roll drives the cam units, turning continuously
wheu the power is ou. The serrated surfaces of the cams
engage the power roll when they are tripped by the various
key levers.
THE POWER ROLL SHAFT is held in place by two oUite
bearings. It should be lubricated with non-fluid oil, lubricant
17 or IBM ET oil. If ET oil is used, do not over-oil or
allow the oil to come in contact with the power roll rubber.
WHEN THE RUBBER SURFACE becomes worn, cam failure
results. A glazed surface may cause the cams to fail, or (
bounce and repeat.
I'F THE POWER ROLL develops a squeak or chatter, soak
the fish paper shim washer in IBM ET oil. See that the shaft
turns freely. When the roll is in place in the machine, adjust
the power roll latch screw to take up all end play. Too tight
a power roll adjustment will overload the motor. If the
power roll "runs out" or "wobbles" after it has been replaced,
turn it around Ih revolution.
KEY LEVERS
Key levers control the different cam units which in turn
operate the various functions of the machine. They are
mounted on the bell crank bearing wire and are guided by
the front guide comb. Key lever springs hold them against
the top of the slot in the front guide comb. Their lower
ends, which are forked, engage the release levers on the
various cam units (Figure 3).
REMOVAL. Follow the procedure given for bell crank
removal.
ADJUSTMENTS. A 21h oz. weight placed on any key
button should just trip the cam. The tension may be ad-
justed by lifting the key lever spring with pointed pliers
and turning the spring adjusting screw. The front guide
comb is adjustable. It is correctly set if the key levers still
have about J(.s inch to travel after they have released the
cams (Figure 3).
If some particular cam does not release at the same point
as the rest, that cam may be adjusted slightly by forming
the pin on the cam release lever. Remove the cam from the
machine for this adjustment. Forming the pin forward will
cause the cam to trip earlier in the downward travel of
the key levers.
6
\
)

REFERENCE MANUAL
~
Spring Finger
MODEl. 01
Figure 3. Cam and Type Bar Mechanism
LUBRICATION. Use IBM lubricant 17 on the forked ends
of the key levers during machine overhauls and removal
for servicing.
CAMS
Cam units are held out of engagement with the power roll
by a stop lug on each cam release lever. When a key is
depressed, the stop lug releases the cam lug, forcing the cam
into the power roll by a spring finger. Rotation of the cam
on the power roll causes the cam frame to energize a type
bar, by pulling on a link to a bell crank and on another link
to the type bar toggle lever. A non-repeat lug, adjacent to
the stop lug on each cam release lever, keeps the cam from
repeating when a key lever is held down.
Removal
Loosen the three screws which hold the cam bearing
clamp plate in place. Using an auxiliary bearing wire, push
the cam bearing wire in the machine until the joint between
the two wires is opposite the cam unit to be removed. Pull
the two wires a short distance apart. The cam unit will fall
out and the adjusting link can be unhooked.
Adjustment
The letter cams are adjusted to the power roll by a link
from each cam frame to a bell crank (Figure 3). Tripping
the cams with the power off allows the cams to rotate and
rest against the power roll. When properly adjusted, the
release levers should come to rest on the back edge of the
cam lugs, or just strike the back edge and slip off. Check
both lobes of the letter cams. The release levers of the single
7 )

MODEL 01
CUSTOMER ENGINEERING
lobe operational cams should fall just behind the lugs of
the cam.
Maintenance /
CAM STICKING. If a cam sticks, check the release lever
and the spring finger to see that they are not binding the
cam. If the cam itself is sluggish, brush or blowout the
dirt. Apply IBM ET oil very sparingly to the cam unit
bearing points using a small drop on the end of a spring
hook. A groove worn in the lug of the cam release lever also (
causes a cam to stick and requires replacement of the
cam unit.
NOISY CAMS. A cam that makes a buzzing sound is
rubbing the power roll when at rest. It can be readjusted for
greater clearance. If the noise is still present under correct
settings, speed up the action of the cam; or, as a final step,
replace the cam unit. To speed up the action, remove the (
power roll and locate the end of the spring that provides \
tension on the spring finger. Grip the spring with the long-
nose pliers and pull out about lis". Reform the end of the
spring so that it holds against the cam frame and clears
the power roll.
TYPE BARS
The type face is curved to the same arc as that of the
platen so that all parts of the type face will strike squarely.
To insure a clean, even impression, the type bar is designed
and adjusted to strike the anvil, or ring, just before the type
face sfrikes the paper. The type bar can be operated only by
a pull on the bell crank or a lift on the toggle of the type
bar (because the toggle linkage locks the type bar down
against the type rest). This permits faster operation by pre-
venting rebound and collision of type bars.
Removal (
1. Shift the segment support to the small letter position.
Loosen the type bar fulcrum wire stop-screws and the
toggle fulcrum wire clamp plate-screws (Figure 4).
2. Press the pointed end of an auxiliary type bar fulcrum
wire against the one in the segment and move it until
it contacts the type bar to be removed. Separate the
two wires to drop that type bar and five adjacent bars
toward the outside of the machine.
3. Using an extra toggle fulcrum wire, drop only the
toggle lever. of the bar to be taken out.
4. With a spring hook under the front end of the toggle
lever, pull up until it is against the type bar which is
held in the left hand, push down on the back end of (
the type bar, turn to the outside and pull forward OD
the type bar. This brings the type bar assembly, with
link and spring still attached, to the front of the
segment and up between the adjacent type bars. The
8 )