Engineers don't go by what should and shouldn't be used on a tractor but rather what works for the average owner. Like Ted said he was using it in ways it was never meant to be used. Plastic is used on a myriad of things from car bumpers to plastic guns. Should they? Probably not but in all fairness if they designed them for any conceivable use them we would all complain about I won't ever need that so why does it cost so much. Ted, feel you pain, many of us have been in the same boat. (to some extent) Get out the welder, beef that puppy up and... don't forget pictures. Both the build and the ACTION.
I should have taken action video yesterday... Case and point of abuse.
(Back story) - My big stupid brush pile I inherited with our new property needed taken care of. FD said a stern "NO" to burning it all at once. I worked on burning it for like 3 weeks off and on, pulling pieces off little by little. I kept moving the fire, and eventually ended u Couple weeks ago they kindly showed up to put it out after someone complained of an "unattended grass fire." It was literally down pouring 3 hours earlier, which darn near put it out. Had to rekindle it. Geez... Stepped away for like a few minutes to grab a drink at the house and take a quick shower before dinner, and met them in the process of putting it out (which I had gone back out there to do.)
Anyways, so now that I can't (can but probably shouldn't) burn it, I dig down through the remainder with the clamp on forks. Might be poking at that grill a little. I fish out all the big chunks, go and hide them somewhere else to burn them, not anywhere anyone can see it this time. When all that was left was sticks 2" and under, engage the brush hog, and commence to chipping up the remainder. Loudly. Stuff flying everywhere. Found a couple big chunks I missed. Some of those even got chipped up before I could raise the hog. Like I said... Blatent abuse, but it's kind of an old junky hog, and it's only 5' (need to upgrade to 7' for this beast). If it breaks, it breaks, but it didn't. Like I said - it's abuse.
Today I had to fix my 84" snowblower - also abuse but not as blatent. While making nearly 1,000 trips to and from my sand pit a couple hundred yards away, it basically served as a counterweight for about 50 hours. Shook it around so much the discharge chute broke off. About 2-3 months later, I finally weld it back on today.
Must stop this abuse!
P.S. - a brush hog is an incredibly tough piece of equipment!