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