Crowding

SYMPTOM

POSSIBLE CAUSE

REMEDY

REMARKS

Crowding

Sample:

1. Lack of lubrication

Lubricate print shaft, escapement

rack, carrier, pulleys and etc.

2. Escapement pawl clearance

Adjust trigger knockoff (74-45) for .015" clearance between escapement pawl (73-43) and rack (73-44)

3. Card holder binding on platen.

Adjust card holder.

4. Mainspring broken or damaged (7-10).

Mainspring should be wound clockwise from rear approximately 6turns.

5. Transport cords off pulleys.

Replace cords on pulleys.

Check cord tension pulley (69-41).

6. Binds in escapement shaft bearing (23-15).

Remove binds and lubricate.

7. Binds in tab pinion gear (31-30).

Check for damaged gear. Adjust  tab pinion gear left or right for minimum backlash - no binds.

8. Binds in tilt or rotate pulleys.

Check, lubricate and remove binds

9. Carrier return shoe clearance (31-33).

For shoe clearance, adjust screw (31-34).

10. Defective print shaft -  

rough keyway, shedding or peeling.

Replace - if keyway is rough, check print shaft key.

When print shaft is replaced - adjust fine timing. (See alignment section for fine timing).

11. Filter shaft timing (55)

For further information "See

alignment section".

Filter shaft timing affects the

position of escapement cam and

spacebar interlock cam.

12. Escapement cam malad

justed (75-46)

Adjust cam (75-46) radially so

cam follower (75-35) is on low

dwell of cam, with machine at

rest position.

13. Pawl mounting stud

loose or maladjusted.

Adjust pawl mounting stud for

.001" clearance between escape

ment torque bar (22-13) and pawl

mounting stud. (91-35).

14. Escapement trip link

(23-14).

Adjust escapement trip link for

.010" clearance between trigger

(22-11) and escapement torque

bar (22-13).

15. Trigger upstop (22-12).

Adjust trigger upstop, with ma

chine at rest, for .005" clearance

between upstop (22-12) and trig

ger (22-11).

16. Trigger restoring spring

broken (22-14).

Replace

17. Typehead homing

See alignment section

18. Balance arm

See alignment section

19. Rotate arm motion

See alignment section

20. Rotate link

See alignment section

21. Shift motion

See alignment section

Also check shift mechanism for

proper shift detenting (See shift section)

22. Fine timing

See alignment section

23. Backspace pawl holding

instead of escapement

pawl (73-46).

Adjust backspace

See backspace section.

24. Check cord tension

For adjustment of cord tension

pulley - See special section.

25. Escapement torque bar

flexes or is warped

(76-4).

If torque bar is warped - replace

Adjust torque bar backstop to

prevent flexing (7-11). Backstop

not on 11" machines.

Crowding

Selectric II

typewriter only:

In addition to the

adjustments

above.

1. Correcting tape mechanism maladjusted.

See correcting tape section

2. Express backspace shoe

binding carrier return

spring.

Adjust bellcrank (33-40) for clear-

ance between express backspace

shoe and carrier return spring.

For further information see express backspace section.

3. Escapement rack not

parallel to escapement

rail.

Loosen escapement rack gear(77-5)

and rotate escapement rack until

it is parallel to escapement rail.

Figure (78-8) is the margin rail

and (78-9) is the margin rack.

The margin rack rotates within

the margin rail to change from 10

pitch to 12 pitch and vice versa.

The escapement rack and rail

operate the same.