Access to "WABCO Instruction Pamphlet No. 5039-19. February 1962. Code of Tests for AB Freight Equipment Valves. The AB Test Rack as adopted by the AAR" is only available to CRHS Patreon Digital Supporters.
If you're already a supporter, click here to log in and link to your Patreon account.
If you're not already a supporter, click here to begin supporting us today! Support levels start at just $3/month, and all levels gain access to these archives.