@@pokiyakeyur1952sir 3 cilender all tractor model mai seting same hai compni uske hisab se chang karti hai ... hum apne hisab se kam kar sakte hai... koi bosh pump plenjer dekhkar karte hai koi flavil mark dekhkar seting karte hai sabka apna alag andaj hota hai sirf seting jyada tight na rakhe...koi problem nahi aati...