I have heard that using to 4.0kgf.
Please check the settings data of DB.
If using the 5.5 to 4.5 can not guarantee against failure of the DB, please transfer the PT.HANKOOK.
Clamp for power is weak,may be Lockshaft a separate explosions.
Now that there is a no problem still not without problems.
Remember glad that was not a problem.