IBM 01 Maintenance Manual page 387

REFERENCE MANUAL
MODEl CI5
&
CI6
6. INTERPOSER CONTROL BRACKET. This brack-
et is attached to the bottom of the rear frame by 2
screws through elongated holes and must be adjusted
to satisfy 2 conditions.
a. The screws should be in the left side of the
mounting holes for 12 and 14 pitch machines and in
the right side for 10 pitch machines. This insures that
the interposer links will be vertical when the inter-
poser cage is at rest. The links must be vertical in
order to move up and down freely. CAUTION. Be
sure all links move up and down freely after any ad-
justment of the interposer control bracket.
b. Position either or both interposer control
bracket mounting screws up or down slightly until
the top of the interposer cage is parallel with the tab
rack.
1. CAM CLEARANCE. Adjust the cam stop screw to
obtain .010" to .015" clearance between the cam and
the power roll when the cam is at rest against its
stop.
S.
HEIGHT OF CAM TRIP BAIL. Form the lug in
the middle of the decimal tab key stem guide (Figure
5) to obtain a clearance of Jl6" between the fingers of
the cam trip bail and the tops of the notches in the
key stems. Insufficient clearance at this point may
allow the cam to repeat.
S.
CAM RELEASE LINK. Adjust the cam release
link to allow the cam to be released as late as possible
in the travel of the key buttons but before the key
stems bottom on the guide.
10. INDIVIDUAL CAM RELEASE. Form the fingers
of the cam trip bail and the lug of the tab key lever
so that all key stems and the tab keylever will cause
the cam to be released just before they reach their full
downward travel. Be sure that no key stem bottoms
before the cam is released. This adjustment must be
set carefully to insure tabulator selection.
11. INTERPOSER CABLE ASSEMBLIES. Loosen
the front cable clamps and adjust the ends of the
cables forward or back so that the interposer links are
released when the key stems have been depressed
%,
of their downward travel. This should be about
V64"
to
J,,1l2" before the cam is released.
If
an interposer link is not being released soon
enough, a flicking action or light tap on the key-
buttons will cause the cam to be released without re-
leasing an interposer link. This will result in no
selection. If the interposer links are being released
too soon they may not safely latch as they are
restored.
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