Yes, the perforated floor is installed, in my previous 8120 I had covered it with good results, so from what I see I should do the same in the 9230 ...
Regarding the curtains, he had never seen them, nobody knows them here. I would have a photo to see how they are installed in the combine to really realize how they are placed?
What do you think about getting some blades to my chopper to achieve less chopped straw?
Thanks for the tips!
The rear curtains are fitted standard in Ď50 series machines & .90 series NH.
I made my first set out of old Honeybee draper mats, but now have them made in a shop ..... see picture.
The curtains - one either side - fit underneath the rear finger grate & face towards the front of the machine, just rubbing on the bottom floor.
Itís easier just to pull both top sieves out of the machine. Clean all the side rails & sieve frames to remove build up chaff/grains etc. While the top are out, clean the bottom sieves & check that they open evenly - from side to side - & then calibrate the bottom sieves as per instructions in the operators manual & the screen. 6mm is the calibration.
On the top sieves, remove the rear top finger grate from the back of the top sieve. Thereís about six 10mm head nuts & bolts here.
Fit the rear curtain between bottom of sieve frame (where the rear finger grate was) & then refit rear finger grate using existing bolts & nuts. All your doing is fitting the rear curtains between the finger grate & sieve frame.
Check that the sieve linkage can move full directions either way through the square holes of the curtains. You may need to just trim the curtain square holes so there is no obstructions.
Refit the top sieves but be careful of the curtains when fitting. Make sure the curtains donít catch anywhere on the linkages or have side pressure on them from pushing too hard against the machine side walls. Trim the curtains if required so they stay straight & not curl on the sides.
Check top sieve for calibration etc. just the same as the you did on the bottom sieves.
Make sure you close & latch the rear access door on the sieve box.
If I can post a video of what they look like installed on this site Iíll do it. Otherwise PM me your email & Iíll just email it.
The curtains make a lot of difference in cereals, canola, pulses etc. Youíll find you can open your sieves more & get a very clean sample. The curtains make the air go through the sieves instead of finding the easiest path out the machine.
Also, have you checked the ďlevel & centreĒ of the concaves to the rotor? This is absolutely vital to get this right.
Taking some of the chopping blades off ???? ...... I'd be careful doing that. You may take it back to a 24 blade ....... BUT ...... you'll need something to cover the mounting lugs & bolt holes of the ones you took off. I'd fill that perforated floor in first & fit the curtains, then see how it goes.