Backspace - IBM 01 Maintenance Manual

MODEL 81 CUSTOMER ENGINEERING
BACKSPACE
Removal
BACKSPACE PAWL BRACKET
1.
Remove the rear case and paper table.
2. Remove the two screws which hold the backspace
pawl bracket to the rear rail.
3. Disconnect the escapement pawl spring and the back-
space link.
4. Remove the pawl bracket assembly.
===::tIMIV\IIIIIVI:::
Backspace interlock
operated to block
sliding motion of
backspace pawl.
Bawpace pawl dears rack
and stop when backspace i,
operated will> interlock
Backspace interlock operated operated.
Figure 53. Backspace Interlock Bracket Adjustment
Adjustments
1. BACKSPACE INTERLOCK. Adjust by forming the
bracket which supports the interlock lever, in such a man-
ner that all clearances are very close, (Figure 53). The
clearance must be held to an absolute minimum to block
any motion of the backspace pawl while the interlock is
in the operating position. Test by holding down a carriage
release button and moving the backspace pawl by hand.
54