Mechanical sounds: Listen & Download Mechanical sounds .mp3 Error! Change your browser, please! ⇓ Download Hydraulic mechanism, on, off ⚠ Chain, chain hoist ⚠ Kick the bike speed switch ⚠ Small hydraulic gear ⚠ Hand winch ⚠ Drawbridge raise chains ⚠ Mechanical sounds ⚠ Bicycle hand pump ⚠ Foot pump inflating a mattress ⚠ Lower chains, Drawbridge ⚠ ★★★★★