T 86 ENGINE LOCKED UP

[GRAYHUNTER416]

I JUST PURCHUSED A T86 FROM BOBCAT OF MACON.THE FIRST DAY IT TRIED TO RUN HOT THREE TIMES.THEY CAME AND GOT IT AND REPLACED THE FAN ASSY IT WAS ONLY WORKING IN STAGE ONE OF FIVE.RAN FINE FOR A FEW DAYS AT THIRTY HOURS MY SON WAS MULCHING WITH IT AND TIPPED FORWARD ONTO THE HEAD AS HE ROLLED OVER A TERACE MACHINE SHUT DOWN INSTANTLY.TIPPED IT BACK DOWN LET IT SIT FOR AN HOUR WONT START.BOBCAT SAYS THREE BEARINGS FROZE IN THE ENGINE AND ITS NOT GOING TO BE COVERED UNDER WARRANTY.DOES ANYONE HAVE A NUMBER FOR SOMEONE WITH BOBCAT THAT CAN EXPLAIN WHY NOT.I CAN NOT GET CUSTOMER SERVICE TO CALL ME BACK