IBM 01 Maintenance Manual page 62

IBM ELECTRIC EXECUTIVE TYPEWRITER
Model 04
ADJUSTMENT procedures for parts and assemblies on this
machine which are the same as those for the Model 01 will
not be covered in this section. Refer to the Model 01.
MOTORS
Old style Westinghouse motors with the Lee governor
cannot be used because their extra length interferes with the
selector mechanism. Short motor wire leads cannot be used
because the terminal block is positioned farther
to
the rear
of the typewriter.
Refer to the Model 01 reference sections for further motor
information.
GEAR DRIVE AND POWER ROLL
Power Roll Removal
Twelve to fourteen long selector bars should be dropped
before the power roll can be removed.
Refer to the Model 01 reference sections for further gear
drive and power roll information.
KEY LEVERS, CAMS, AND TYPE BARS
TYPE BARS
should be adjusted heavier· on ring than on
cylinder for the best results. Type bar slugs are soldered
~"
higher on the type bars than they are on the standard
ET. This allows a greater type-bar spread in the basket,
tending to prevent the type-bar slugs from catching on each
other as they are actuated toward the platen. It may be
necessary to grind off a portion of a type-bar slug to com-
pletely eliminate all interference. While grinding, be care-
ful not to damage the type face.
Shims are located under the front and rear rails to com-
pensate for the additional height of the type-bar slugs.
TYPE BAR RESTS
should be replaced whenever they are
worn.
Cam Removal
A SELECTOR BAR
must be unhooked before any letter cam
can be removed.
Refer to the Model 01 reference sections for further key-
lever, cam and type bar information.
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