New Holland Fiat — New holland 4710

I surendra wagdre i have 2 tractor from new holland 1. Model 4510 and secound 4710 .I parches new Holland 4710 tractor at 26/11/2015 from sakti moters betul Engine number 71157 chassis no NHN47100ZFH328633 ..but in this period I have 2 time problem in tractor gear box and lift mechanical so I have loss because I properly not works .so say in this period two times have problems so how can give tractor long service..so I have problem and I want to replaced 4710. Or give prefect solution ..my Mobil number are [protected]..[protected]..[protected].