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Selectric Resources

 

 

Random Malselection

SYMPTOM

POSSIBLE CAUSE

REMEDY

REMARKS

Malselection,

random

1. Broken or cracked type

head (36).

Replace or repair

 

1. Typehead could cause problems

if the silver coating wears off.

2. Latch springs on element

broken.

 

3. Cap broken or loose.

2. Broken bias spring in

tilt ring (44-31).

Replace

Bias spring is in current level

tilt ring - remove upper ball

socket (41-25) to check bias

spring.

3. Typehead needs lubricating (36).

Lubricate with grease.

Grease inner circumference of

typehead. (36)

4. Gear train

Adjust gear train (47-34)

See alignment section

5. Typehead homing

See alignment section


6. Skirt clearance

See alignment section


7. Rotate link

See alignment section


8. Rotate arm motion

See alignment section


9. Shift motion

See alignment section


10. Tilt arm motion

See alignment section


11. Tilt homing

See alignment section


12. Fine timing

See alignment section


13. Snapping latches

See alignment section


14. Broken springs on tilt

or rotate latch (45-32)

Replace


15. Filter shaft timing (55)

See alignment section


16. Broken rotate spring

(46-33)

Replace

Rotate spring is removed from

bottom side of carrier.

17. Binds in tilt and rotate

detents.

Adjust tilt screws (38-46) and

rotate detent screw (38-20)

Adjust for minimum clearance -

no binds.

18. Set screw in rotate

pulley loose.

Tighten screw (43-30)

After screw is tighten - recheck

rotate alignment adjustments.

19. Worn dogbone (42-28),

upper ball socket (41-25)

or lower ball socket

(42-27).

Replace

This wear can be checked by

observing headplay. (See excessiveheadplay section).

20. Shift cam backup roller

worn or loose (48-39).

Replace

Worn backup roller causes rotate

detenting to change - normally in

upper case.

21. Rotate spring tension

(46-33).

See alignment section

Rotate spring may be broken.

22. Tilt ring spacer (41-26)

Adjust tilt ring spacers for no

binds.

Maybe binding against upper ball

socket (41-25) or inside of element

23. Tilt ring pivot pins worn

or maladjusted (39-21)

Remove and check for wear -

replace.

Pins are adjusted to center the

tilt ring (39-23) between yoke

extensions (39-22).

24. Binds in rotate or tilt

pulleys.

Remove binds and lubricate


25. Rotate spring cage

gummy.

Flush cage (46-33) with cleaning

solution.


26. Cycle clutch drive (50-45)

Lubricate cycle clutch with

recommended grease.

Adjust clutch - See alignment section

27. Character interrupter

maladjusted or broken

1. Loosen screw (49-42) and nut

(49-41), adjust character inter

rupter pawl (49-40) for clear

ance between pawl (49-40) and

cycle clutch link (49-44).

2. -1. Remove electrical cord

from outlet.

 

2. Depress character key to

release cycle clutch.

 

3. Loosen screw (49-43) and

adjust for .001" clearance

between cycle clutch link

(49-44) and character inter

rupter pawl (49-40).