Tata Motors — Issue On Leaf Spring

Address:

Diphupar B

Hello Sir . With Due Respect I would like to ask you that as a regular customer of your company we buyed 3 bus in different years from tata motors but recent bus that we brought in last year LP410 Bs6 34 seater is actually messing up ... Every month we changed leaf spring in our bus as we using that bus for school bus but changing everyone month is it normal ?? As far I know previous bus we brought was not like that it was actually good and less maintenance cost but This current bus we brought bs6 LP410 is too much ..What Is the exact problem of that Sir ??? Is it because of heavy Load in bus or???
Thank you