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