Monotral’s air leak (1)
During the last event we had to stop running the Monotral because of an air leak emptying the air tanks. Today we proceeded to find the leak by turning on the engine and making air until the valve triggered. Then we stopped the engine and listened to the air leaks. A suspension circuit trumpet sound was discarded as a leak, and we finally found the leak in the nearside front air-spring. The spring is a Torpress 20.