Carriage And Rails - IBM 01 Maintenance Manual

MODEL B4 CUSTOMER ENGINEERING
CARRIAGE AND RAILS
Removal
1.
Remove the three interposer bellcrank links and
their springs.
2. Remove the lower interposer bellcrank guide comb.
3. Disconnect the tab governor pawl link if present.
4. Remove the rear case.
5. Disconnect the tab operating link.
6.
Disconnect the expander link at the rear.
7. Unhook the escapement trip link.
8. Disconnect the rebound check interlock lever link
if present.
9.
Disconnect the backspace operating link at the bell-
crank.
10.
Disconnect the clutch unlatching link.
11. Remove the C clip from the carriage return pawl
release lever.
12. Remove the margin set lever.
13. Disconnect the carriage tension tape and slowly
let the main spring take it
up
until the end clip of the
tape is caught by the small idler pulley where it (
will be held.
14. Disconnect the carriage return tape from the in-
dexing mechanism and allow it to be drawn back as
far as its idler pulley.
15.
Remove the four rail screws and run the carriage
all the way to the right side of the machine so that (
the interposer bellcranks will be visible from the top.
Lift the carriage off, being careful of the tab operating
link and the connection on the universal bar which
normally holds the trip link. By twisting the carriage
and the rails around slightly to the right, they will
lift off.
(
Rail
Adjustments
Refer to "Rail Adjustments, Model Bl".
4