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