It can be very difficult to repair a 100+ year old machine. Metal becomes brittle and warped, and parts can be very scarce. Never the less it is possible to keep a Hammond typewriter in good working order and still typing 120+ years later.
To help with that, this page will feature solutions for common issues. As this is a work in progress, please check back for updates and new solutions. Please proceed with caution and at your own risk.
You will need special gunsmithing tools to work on 100+ year old machines. The best is sold by a little company called Chapman Manufacturing, as they are the only company in American that makes a typewriter-specific set. This is not a paid endorsement, just really love this company.
There is an official company repair manual, unfortunately an original is extremely rare, but the AntikeyChop offers a great reproduction for sale.
Solutions
Improve the type clarity and impression – If your type is too faint this may help.