You will need: flat blade screwdriver, wrench «on 7».
1. Fold down the handrail.
2. Pry with a screwdriver...
3.... and remove the decorative caps for the handrail mounting bolts.
4. Turn out two bolts of fastening of a hand-rail to a body...
5.... and remove the handrail.
6. Similarly, remove the remaining handrails.
7. Install handrails in the reverse order of removal.