@@madhukerfansupscaspirants2170 jar ke under ki blade ko tight pakar hai phir 10no t spanner se nut ko close-wise khol to khul jayega….. ek bat ka dhyan rakhna kabhi bhi jar ke niche ka coupler ko tight pakar kar jar ke under ki nut kholne ki try mat karna warna shaft coupler se jhitak jayega or ghumne lagega phirpura new shaft hi dalna padega
