Hi all, new to the forum, hoping for some advice, I get into these repair jobs sometimes for the local general store. At present it’s a 1020 that reportedly “worked fine Friday” then Saturday the 3 point raises all the way up on start up but won’t go down. It had a scraper blade on it at the time that was quite heavy. I have removed the top cover expecting to find a linkage broken or unhooked but found nothing apparently wrong. The lever feels really loose but the owner states it’s always felt that way. Looking for any suggestions for this. I also discovered what I assume is the draft control , has 3 positions L-LD-D not sure what they stand for but they seem to limit height or so it appears that is what it does . I didn’t see it till it was apart.