Before correcting any adjustments, you should be able to explain why you are making the adjustment, and how it will eliminate the problem. Cords off pulley 6, Binds in backspace rack or teeth on rack missing. With any type of carbon ribbon, you can discover what has been typed by reading the letters off the used ribbon, because the carbon ribbon only makes one pass through the print head. The carriage on this machine held both the main typing ribbon cartridge and two small spools for a correction ribbon. The motor at the back of the machine drives a belt connected to a two-part shaft located roughly halfway through the machine. Make sure copy control lever is all the way forward.
Dust shields may have to be formed. Position carrier at different points along writing line and check clearance. The original design was thereafter referred to as the Selectric I. Clearance between shift arbor and shift cam should be minimum; no binds. Verify that there is a problem - if possible. Both machines feature cushioned carriage, electric ribbon rewind, changeable typebars, multiple copy control and pastel colors.
Reinstall stencil lever back in ribbon plate 111-36. They are either gummed up or need to be adjusted. Adjust ribbon feed cam follower stud 129-27 so ribbon feed and wheel 111-30 will not rotate beyond detent position on ribbon lift wheel. Flush oil off spring with cleaning solution. Keyboard lockout bell- crank 52-7. Carrier binding on dust cover or shield.
Too much carrier return shoe clearance 31-33. Correct binds in arm 121-8 and lubricate. Adjust bellcrank 101-32 back and forth for even left hand margin Adjust velocity cable 70-40 to just contact the left inside of machine when carrier is at ex- treme left side of machine. If more than two interposers go down at the same time, you have a slight risk of a jam, which can be cleared by pressing Mar Rel. Adjust cams 3B-5 left or right, arm may be binding on cam.
Replace torque limiter spring 96-30 or extension spring 96-17 Proper latch bite prevents hesi- tation when carrier return is released. To adjust the balance arm do the following: 1. Shift interlock 69-38 Adjust shift interlock 69-38 to just touch the shift ratchet 4-3 at the half cycle point. Loosen machine foot brackets 65-30 to adjust machine within covers. How to check out a used Selectric: I assume you have read the instruction manual and know the basic functions.
Correcting keylever link broken or maladjusted, 122-12 Mode latch binding or damaged. Several mechanical components, in particular the motor and the main clutch, had to be upgraded from the typewriter versions to reliably support continuous operation. Adjust keylever guide for overlap of the backspace pawl 18-10 with the backspace interposer 19-2. Rotate the element so the underscore faces the platen. Grease inner circumference of typehead. Check and reinstall ribbon correctly. If there is not enough tension in the rotate system, there may not be enough rotational torque to properly detent negative characters such as the X, m, and g.
There was little obvious warning that the keyboard had locked or unlocked, other than a faint click from the interlock solenoid, easily drowned out by the printer and fan noise in many computer facilities. Wrong characters print occasionally: This can be an adjustment problem, but it can also be a sign of a slightly-out-of-spec type element. Remove pulley, clean and lubri- cate. Adjust brake spring tension 103-3 so ribbon will wind taut. Though done to protect the print mechanism from damage, an unexpected keyboard lock activation could cause minor injury to a typist with a heavy touch.
By tilting and rotating the element to the location of a character, the element can be thrust against the ribbon and platen, leaving an imprint of the chosen character. Recently I tried out a modern low-end daisywheel typewriter, and it was like typing through a time warp — the letters were appearing on paper much more slowly than I was hitting keys, and by the end of the line, there was a quite noticeable delay. Adjust latch clearance with adjusting screw for minimum clearance without failure 10-8. With the head play removed in the negative direction, check where detent contacts the element tooth. There are two sets of similar mechanisms, one for tilt, one for rotate. Ribbon options: In the public eye, the Selectric typewriter was largely equated with the crisp black print of a carbon ribbon, but that is actually a mistake.
But fabric ribbons were an option for all three models of Selectric. But time has it's way with all things and over the last 30 or so years while it wasn't used, the oil and grease stiffened, causing it not to work. Adjust tab pinion gear left or right for minimum backlash - no binds. Lack of lubrication on machine. Pawl mounting stud loose or maladjusted. Carrier indicator binding on top cover.