Service Manuals, User Guides, Schematic Diagrams or docs for : IBM typewriter ET_News_Letter_1955
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_~~E~.."'-::_~~_~~dteIz,_~ CUSTOMER ENGINEERING
January 26, 1955 No. 15
TYPE BAR REST PAD
Service calls resulting from the special anti-rebound type
rest, part #1093882 or #1093883, jumping out of position can
be minimized by using the following method. Install a type
bar spring through retainer clip, part #1093670, and around
the basket frame assembly. The use of a type bar spring on
each side will not jeopardize the function of the type rest
assembly.
* * * *
MODEL B PARTS IDENTIFICATION
Tabular levers and escapement pawl bracket assemblies now
have certain characteristics or contain markings which iden-
tify the various pitches. The following illustrations are fur-
nished to aid you in this identification.
Solid Mounted Spri ng Mounted
o Mork o Mark
1105638 1107791
1109640
(over)
=======IBM========
E. T. News Letter No. 15 - Page 2
Tabular lever for 8-9-10 pitch machines, part #1105628, and
escapement pawl bracket assembly for 14 - 5/32 pitch ma-
chines, part #1070386, have no marking.
* * * *
OPERATIONAL CAM REMOVAL
To facilitate removal of the tabular, space bar, back space,
and carriage return cams from Standard ET's the following
method may be employed:
1. Remo.ve front cover.
2. Remove cam knockout bar assembly.
3. Remove key lever fulcrum wire sufficiently to drop all
key levers in the area of the cam to be removed.
4. Disconnect operating links from the cam to be removed.
5. Remove operational cam fulcrum wire.
6. Spread the appropriate key levers and remove cam out
through the top of the machine. .
Because of interference with the margin set key lever, the
shift cam must be removed in the normal manner.
* * * *
DEFECTIVE MATERIAL
From time to time, defective E T parts are returned to the
plant on an RMER. As stated in CEM #383, all defective
parts returned to Poughkeepsie are to be tagged with a De-
fective Parts Card, IBM 910821.
* * * *
E. T. News Letter No. 15 - Page 3
CEM CHANGE
CE M #390 erroneously refers to Lift Platen under "PURPOSE"
and "MACHINES AFFECTED". Since the rear rail parts of
Model B Lift Platen typewriters are similar to the Model A,
rebound check lever mounting bracket, part #1072086, must
be used.
* * * *
NEWS LETTER ITEMS
ET News Letter #1 requested that comments be directed to
ET "News Letter", Poughkeepsie. We solicit your ideas and
appreciate your efforts in getting them to us. However, so
that you will be eligible to receive recognition for any ac-
cepted idea, items should be submitted through the use of the
IBM Suggestion Plan.
* * * *
NEW SERVICE CODE
For District Demonstrator and Display Equipment, a new
Service Code 24, entitled "District Demonstrators and Dis-
play ET's", has been established for use for all Customer
Engineering service on this equipment. An E T 'Service Sticker
should be placed on the inside top cover of each District Dem-
onstrator and Display ET with the following clearly noted:
"District Demonstrator - Use Service Code 24".
* * * *
(over)
E. ,T. News Letter No. 15 - Page 4
LIGHTENED TYPE BARS
CEM#387 described a method for reducing the type bar weight
to reduce embossing of the small area punctuation characters.
We are pleased to announce that lightened type bars will be
installed in positions 32, 36, 38, 39, 40, 41, and 42 of all
ET's during manufacture effective with Standard typewriters
above approximate serial #354226 and Executives above ap-
proximate serial #116290.
* * * *
SUGGESTION DRAWING PREPARATION
While drawings are not always required, there are some
instances where submission of drawings aids in presentation
of an idea and also simplifies 4tvestigation. '
.Trythe following procedure the next time you plan to include
a drawing:
Trace over drawing in Manuals or Parts Catalogs using the
first sheet of the Suggestion Form. Finish up by retracing
over the remaining suggestion sheets, at the same time,
making alterations. required to illustrate your idea.
This method has proven helpful to other suggesters in the
past----will it aid you?
* * * *.
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