So we have a Feeler HV-1650 Mill in our shop and a couple months ago the clamp force started dropping and is at about half of what it normally is. This is a fairly hot machine at my shop so I won't be able to have it down for more than 2 days at most. When I went to look in the parts manual so I could pre-order parts and see any type of print to know what to prep for, I got nothing. There is no parts break down of the draw bar or clamp/unclamp system, so I can't pre-order parts or see what I'm getting into. It looks like it has the same type of booster cylinder setup as a Yama Seiki BM-1200 mill but beyond that I can't see anything. I've contacted Feeler, Methods, and Maruka but Methods asked Feeler and all I got was a picture of the booster cylinder which I can already see from the outside, Feeler told me to contact Methods, and Maruka is contacting Methods seeing if they can come up with anything. If anyone knows anything about this thing that could help me out that would be great! I don't know if my only option is to call someone in, but how would they know what parts to order? Including pictures from my parts manual of what it shows me, by far the worst parts book I have ever seen.