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