What reason i can not install new ink tube of ACHI A3 DTF Printer because the diameter of New Ink tube too smaller ?

When can not extract ink , only extract air from ink sac .

Meanwhile , The ink tube leak ink outside .

It means the ink tube need to be replaced .

Whole process of ink tube replace as below .
https://www.youtube.com/watch?v=GEFMnqj2y3Y

But sometimes customer think the new ink tube of ACHI A3 DTF Printer can not be installed because the diameter of New Ink tube too smaller .

The reason is customer ingore the content of video from 01:16 to 02:12.

The bottom silicone tube and connector need to remain on the printer , Did not uninstall with old tube .

Above wrong operation leads to new ink tube can not be installed .

After resintall bottom silicone tube and connector , The new ink tube will be easy to be installed .