Escapement

SYMPTOM

POSSIBLE CAUSE

REMEDY

REMARKS

Carrier will not

escape.

1. Carrier binding on dust

shield (12-1).

Adjust dust shields.

Dust shields may have to be

formed.

2. Velocity cable caught on

pulley.

Adjust velocity cable (70-40) to

just contact the left inside of

machine when carrier is at ex

treme left side of machine.

3. Mainspring broken (17-1)

Replace and adjust.

Mainspring should be wound clock

wise approximately 6 turns.

4. Card holder binding on

platen.

Adjust card holder towards front

of machine.

After adjustment, check that

ribbon lifts are not hitting card

holder.

5. Escapement cord off

pulley.

Replace cord on pulley and check

cord tension pulley. (69-41).

For cord tension pulley adjust

ment - see "Special section".

6. Rear carrier shoe bind-

ing.

Adjust rear shoe for minimum

clearance - no binds with adjust

ing screw (32-33).

7. Print shaft binding on

wiper covers (41-27).

Adjust wiper covers (41-27) and

lubricate wipers.

8. Binds in tab governor

pinion gear or spring

(31-30).

Loosen tab pinion gear (31-30) and

adjust back and forth for mini-

mum backlash - no binds.

Tab pinion spring and gear needs

cleaning - flush with chemical

solution.

9. Carrier return shoe

binding against carrier

return spring.

Adjust clearance between carrier

return shoe (31-33) and carrier

return spring (31-31) with adjust

ing screw (31-34).

Also check for bad loop in carrier

return spring (31-31).

10. Filter shaft gear loose.

Tighten filter shaft gear.

Before tighten filter shaft gear,

adjust filter shaft (55).

11. Escapement cam loose

on filter shaft (75-46)

Adjust cam (75-46) radially so

cam follower (75-35) is on low

dwell of cam with machine in rest

position.

12. Filter shaft maladjust

ed.

Adjust filter shaft (55)

13. Escapement link broken

or damaged (23-14)

Replace and adjust

Adjust escapement link (23-14)

for approximately .010" clearanCE

between escapement torque bar

(22-13) and trigger (22-11)

14. Cam follower off cam

Check and reposition cam (75-46)

for cam follower (75-35).

15. Trigger restoring

spring broken (22-14)

Replace

16. Trigger upstop (22-12)

out of adjustment.

Adjust trigger upstop for  .005"

clearance between escapement

trigger (22-11) and upstop (22-12)

17. Pawl mounting stud

loose or maladjusted.

(91-35).

Adjust pawl mounting stud for

.001" clearance between escape

ment torque bar (22-13) and pawl

mounting stud (91-35)

18. Escapement torque bar

upstop.

Adjust screw (76-5) for minimum

clearance between escapement

torque bar (22-13) and escape-

ment pawl (73-43).

If the escapement torque bar is

adjusted - check adjustment of

escapement trigger (22-11).

19. Trigger knockoff loose

or maladjusted (74-45)

Adjust trigger knockoff (74-45) fOl

approximately .010" escapement

pawl clearance.

20. Escapement bracket

loose (89-30).

Adjust bracket (89-30); Loosen

4 screws and adjust escapement

bracket parallel to tab torque bar

(91-31).

Adjust .010" clearance between

escapement bracket (89-30) and

tab torque bar (89-31). Tab

torque bar and escapement

bracket should be parallel to each

other.

21. Print shaft damaged.

Replace - If print shaft is replaced, adjust fine timing.

(See alignment section for fine

timing)

1. Print shaft may be shedding or

peeling outer coating.

2. Print shaft bowed.

22. Spacebar latch lever

screw interfering with

escapement (10-8).

To check:

Loosen latch lever screw nut and

back off latch lever screw (10-8)

When adjusting escapement, to

prevent interference, loosen

and back off latch lever screw.