United States 94V067000
Oshkosh Corporation
The problem
AN "L" SHAPED BRACKET WELDED TO THE FUEL TANK SUFFERS FROM FATIGUE FAILURE OF THE STRAP WELD TO THE FUEL TANK. WHEN ONE STRAP FAILS, THE TANK WILL ALLOW THE TANK TO MOVE WILL THE VEHICLE IS IN MOTION, CAUSING INCREASED FATIGUE TO OTHER TANK ATTACHMENT WELDS.
Risk
IF SEVERAL TANK STRAP WELDS FAIL BEFORE CORRECTIVE ACTION CAN BE PERFORMED, THE FUEL TANK CAN SEPARATE FROM THE VEHICLE, CAUSING A ROAD HAZARD.
What owners should do
SPRINGS AT THE FOUR LOWER STRAP MOUNT CONNECTIONS TO THE LOWER FRAME HAVE BEEN POSITIONED TO COMPENSATE FOR FRAME MOVEMENT. THESE SPRINGS WILL PROVIDE CONSISTENT STRAP FORCE AROUND THE TANK REGARDLESS OF FRAME MOVEMENT.
Units 842