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