Clean the Machine piping with the multi-function syringe of the dental unit：
a)Cut the water pipe at a distance of 10cm to 20cm from the water entrance
b)Turn on the machine electricity and get through to the electricity.
c)Connect the Multi-function syringe of dental unit to the water pipe.
d)Disassemble the tip or handpiece.
e)Step on the foot switch.
f)Turn on the switch of the Multi-function syringe, press the water into the
machine and the impurity blocked in the machine can be eliminated.