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