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