1 Swap in a new set of shoes, reconnect the brackets & springs, put the drum back on and youâre done.  Thereâs no need for compressors, or opening fluid lines to retract pistons with these setups. As a matter of fact, replacing brake shoes on some vehicles can be accomplished in under 2 minutes, once the drum is removed.
The bicuspid valve, sometimes better known as the mitral valve, allows blood to flow in only one direction (assuming it is functional) from the left atrium to the left ventricle, it prevents blood from flowing back from the left ventricle into the left atrium.
Your tricuspid valve is the valve that separates your right atrium and right ventricle. Tricuspid regurgitation occurs when this valve doesnât properly close, causing blood to flow back up into the right atrium when the right ventricle contracts. Over time, this condition can weaken your heart.