Hi Team,
thought these may be of use to someone one day.
The D6 U series conversion might or might not be suitable for a U series D4--likely would be issues with clutch levers due to tightness of the operators station on the D4 compared to the D6.

Alas, I do not have any copies of the Special Instructions mentioned.
Cheers,
Eddie B.

Thanks edb, I. would be interested in converting to dry filter on my D4. If anyone has done this and has pictures it would be nice to see them. I will do some searching to see if there is anything in the archives. Perhaps it is not a good idea to do such a conversion. I am sure there are pros and cons.

Bruce

D4 U series can be converted to a. D4D dry cleaner very easily we converted a D4. 7U back in the eighties we pulled a 10ft 6 inch offset disk in almond orchards. That tractor picked up a gear 3rd to 4th NEVER any problems, I will NOT run a oil bath air cleaner on any engine I care about or put any money into!! 17afarmer Mike

Thank You, I will see what I can dig up in the archives for what would be required for that conversion.

Bruce

If I remember right we cut the air cleaner pipe got a 90 degree elbow turned it to the right we had to service from the right hand side. other than making the flange doing some cutting and welding was nothing that took any special parts other than the D4D air cleaner can. This tractor was tail seat orchard 7U controls a lot different than yours, that little D4 was quite a tractor would put a lot of these new “modern” wheel rigs to shame!! 17afarmer Mike

Here's a picture of my D4 6U with dry type air cleaner. It's what it came with but I'd just as soon have the later tall oil bath cleaner. You soon learn about knuckle clearance with this arrangement.

i have a 9U D6 thats had the pony motor removed and direct electric start added. my hope was to find a decent dry canister/filter out of a newer 6 or even a 5 and mount it under the hood where that pony motor used to sit... fabricate a bit of piping and it should be good. just need to find a canister now lol.