How to repair Fz 3.0 version back dics brake / fz ka piche wala dic brake kaise Sahi kare 

FZ version 3.0 ka disc brake kaise Sahi Karen
dono ring change kardo mc ,kit bahar lo pumping Karo pipe laga hona chahiye or mc kit pura bahar nikal kar ander dala bahar lo ander dalo or pura air nikal jayega confirm karne ke liye check kare pipe mai brake dabane par air aa raha hai ki nahi nahi aaya to air bolt ko tight kar do or chala ke check Karo kaam ho Jaye to comment kar ke batana taki or log try kare