The clutch cable attaches to the lifter arm amd then to the liftershaft. The lifter piece is inside right in the center of the pressure plate. They are part of the clutch but not in you typical clutch packs. Not sure which brand clutch pack you bought. But there is one fiber plate with a slightly larger inside diameter so it can fit over and around the anti-judder spring and seat. I hope he didn't get nothing mixed up. If so I believe the clutch won't fully release. Some fiber kits like what I use (MTC) does not have the one larger I.D. fiber. In them cases you have to leave the anti-judder spring and seat. Anyway I'm thinking if it wasn't doing it before that will be the first place to look. Some of the parts pictured in the manual are for the old style clutch don't let it confuse you. The manual could use some improvement. Anyway when a liftershaft get worn it tends to not ooen the clutch up enough so you'll get some clutch drag still driving the input shaft and then you'll experience the grinding. Below is a good and a slightly warn lifter shaft. You can eat this up sitting aroind revving it at intersections to show off like the Harley guys do up here.
Below is another lifter shaft that is worn but not overheated like the first.