https://www.facebook.com/groups/typewritermaintenance/posts/3414723442098414/

Dealing with stripped screws

Joe Bellicini indicates that the set screw threading for the platen knobs on the Royal Quiet De Luxe is #6-40.

Virtual Hermans - Lucas Dul

Lucas Dul does an overview of affordable and available tools for typewriter repair as well as more advanced

Basic Tools

• screwdriver sets
  • Carpenter screwdrivers (come to a point) the point can slip and causecam out screws
  • Hollow ground - provide the most amount of torque and prevent cam-out problems (also called gunsmith He uses the 0623 Chapman set (the number is the date of international typewriter day) The large tip can be problematic
  • long reach screwdriver
  • magnetic screwdriver
  • tempered stainless steel ruler (as a screwdriver, especially
  • microdrivers (usually used for eyeglasses or electronics)
• spring hooks (push/pull)
  • Fixture from an embroidery set with length for getting length
  • grab hooks
• pliers
  • standard needle nose pliers
  • 45-90 degree pliers (he uses more often)
  • wire cutters (for modifying springs in machines and modifying links in machines)
  • parallel draw pieces (with heavy duty cutters)
• Mechanics' wrench set
  • prefer cast ones
  • socket screwdrivers (fixed hex screwdriver) expecially for shift adjustment on the Royal Ps
  • Chapman's has a mini rachet 1/4" socket in it's 0623 set
• Forceps especially a long pair for IBM Selectrics (via Duane Jensen)
• Tweezers
• Blowtorches
  • alcohol torches (for heating and bending metal)
  • soldering, brazing, and heat shrinking
  • small butane torch (cigarette lighter use)
• Oilers with needlepoint applicator (he uses sewing machine oil)
  • One can use the surface tension of the oil to place a dot on the tip of a scewdriver (flat head) and then place the dot within a machine with reasonable precision
• MIG Pliers - have cutouts for taking rubber off of old feedrollers (otherwise these pliers are used for welding); he describes it as the nutcracker of the typewriter world
• strap wrench (especially for removing platen knobs to prevent damage)
• knife (butter knife)
  • razor blade for trimming rubber (otherwise too thin for other applications)
• flashlight (simple is fine)
• marker (Sharpie)
  • marking orientation of removed parts (washes off with alcohol)
• hammer
• retainer clip pliers (especially for IBMs, Brothers, Swintecs) with spare e- and c-clips (some have thumbscrews for minimizing damage to clips) openers are more useful than "closers"
• Bristol wrenches - looks like Allen Keys, but with star cross section for bristol locks in IBM machines
• Hand crank (for IBM Selectrics) thread into the operational cam shaft

Intermediate Tools

• segment bearing rod (good for removing individual typebars)
• drinking straw for ball bearings on royal portables and S-C portables and flat tops staggered 1/2" ball bearings with orbital gear (star-shaped) - snip opposite sides to insert orbital ring and ball bearing for holding and placement in typewriter
• carpenter's pencil for marking

Advanced/Specialty tools

• t-bender for forming metal (exp. thin pieces)
• 9 jaw pliers for bending typebars
• peening pliers (for manipulating and stretching materials)
• wheel benders (he doesn't use often)
• eyelete tool for putting eyelets in typewritter ribbon
• files (small/cheap) widen gaps inside of type guides when necessary or thinning out tight pieces

Very specialized

• Type slug solder jig or solder guide
• keyring pliers ($400 and above to purchase)
• multimeter for checking circuit components on electric models. Primarily using Ohm setting to see if current is passing through parts, otherwise they're broken.

Honorable mentions

• center punch for drilling points and new screws
• dental mirror for looking into machines
• spring gauge to set 2lbs for desktop and 1lb for portables

Q&A

air compressors are useful for cleaning

Don't damage screws on older machines.

US used imperial screws until 1940/50s and machines after are all metric.

3 dessert island tools<br /> - screwdrivers, pliers, spring hook