New CTA Rail Cars Temporarily Sidelined
(Chicago Tribune) — The new CTA rail cars undergoing testing have been removed from service temporarily for repairs to fix a potential problem with the brakes, transit officials said Thursday.
Vibrations were affecting a component in the braking system, CTA engineers found. The vibrations could possibly cause the “slack adjuster” in the brake to loosen and result in a loss of braking friction during extended use. The slack adjuster makes accommodations for the amount of wear on the brake pads over time.