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