Hi there and welcome to JA. The first thing to do is remove the hood to make the job easier. The is a retaining screw on each side of the hood hinge. After the hood is removed then there is 6 bolts retaining the bumper in place. If you look under the mower there is 2 bolts going in vertical to the top of the bumper and then there is 2 going horizontal in to the bumper from the inside of the frame rails then there are 2 more bolts coming in from the out side of the frame rail.After all 6 bolts are removed then slide the bumper out and then install the new bumper in reverse order.
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