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