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