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