New ym240d owner

[Jmlcolorado]

You two have been locked up in quarantine too long ��
I think we all agree the shift pattern casting and decal are weird.
I suppose if we really want to finalize this debate, we can dig up all the gear ratios of each gear including high and low. Then we can tell for sure what each gear really is.
Then again, we can just appreciate the odd engineering done back in the 70’s and enjoy the machines.
What do ya say?
��
Can we all be friends again? ��

 

[jimjumper]

Here is a pic of one of the pins installed on my 240D. They are really tough to find however and if the casing is broken may not work anyway. This pic was taken before I filled the gap on the right with a link for a limiting chain.

 

[California]

You two have been locked up in quarantine too long ��
I think we all agree the shift pattern casting and decal are weird.
I suppose if we really want to finalize this debate, we can dig up all the gear ratios of each gear including high and low. Then we can tell for sure what each gear really is.
Then again, we can just appreciate the odd engineering done back in the 70痴 and enjoy the machines.
What do ya say?
��
Can we all be friends again? ��

Amen bro. :thumbsup:

 

[Jmlcolorado]

View attachment 649710
Here is a pic of one of the pins installed on my 240D. They are really tough to find however and if the casing is broken may not work anyway. This pic was taken before I filled the gap on the right with a link for a limiting chain.

Ahh yes. I’ve heard of those. Sounds like the original “single shear” pins are prone to breaking the case.
The solution was this.
While I like this idea, I think I’m going to straighten out this bracket contraption, and then add dons additional bracing that utilized a couple bolts that attach the axle housing to the differential housing. My hopes is that I’ll provide some vertical bracing, and perhaps a little horizontal bracing as well.
I like the idea of it being made of mild steel, which would hopefully provide some movement under heavy load instead of breaking a hard solid point.

 

[California]

View attachment 649710
Here is a pic of one of the pins installed on my 240D. They are really tough to find however and if the casing is broken may not work anyway. This pic was taken before I filled the gap on the right with a link for a limiting chain.

I think that is the legendary OEM long pin!

Does it look original, or shop-made? Where did you find it - or was it already on there?

The busted out part on mine (shown in that post I linked) is on the front side, indicating the original damage was done crashing into something going in reverse. When I bought the YM240 the right side pin was one of many sloppy loose threaded connectors, and it already was missing a piece out of the casting. The nut on that side was missing, somebody did that to let it thread in deeper. I applied red (permanent) Loctite and threaded it back in until it bottomed, which again, didn't leave any threads for a nut. That lasted ~12 years until it needed a similar repair again but this repair came loose after a couple of seasons.

I couldn't find a long pin like you have. I had to replace the right axle assembly complete.

 

[winston1]

speeds.

 

[Jmlcolorado]

Picked up a quick hitch for the machine today. Messing around trying to hook up the blade last night one time was enough to justify the cost.

Goal today was to bend that bracket back.
I pulled it off and figured I壇 try my cummins. I didn稚 think it would be enough weight to do it but worth a shot.

Wasn稚 enough.

So I got out the 1955 f600 that痴 sitting on a 1992 international 3800 school bus chassis with a monster dt466.
Not enough weight there either.

So I caved and moved a bunch of crap around to get to the press.
Win!

Got it installed, hooked up the quick hitch and all the linkage along with the blade only to find basic geometry screwing with me.
Turns out the new bracket drops the 3point pins below the line of the sway turnbuckle links.
Since they aren稚 in line, the system binds up and downs allow the blade to drop fully.
Ugh.
Guess I知 glad I tried it before reinforcing this bracket. Looks like I値l be either redesigning the bracket to bring the pins back up to stock height, lowering the mounting Points for the sway links, or spending the $450 for the axle housing. If I buy a new housing, I値l likely devise a way to reinforce it to help prevent it from breaking again.
Time will tell.

For now I was able to get it to drag the scraper blade at a good height, but I certainly loose full range of motion on the system the way it痴 setup now.

 

[Jmlcolorado]

Disregard my previous post.
Appears YFL240 is what I’m looking for

 

[CoyPatton]

It looks like it would be simpler to start from scratch on the design to get the lower arm pins in the right spot.
You might consider bolting it to the rear housing using bolts around the PTO housing and shield area. While redesigning this you might also do something in the way of a drawbar. The greater support you can provide should reduce the potential for housing damage by spreading the force over greater surface.
Good luck with your redesign.

 

[California]

It looks like it would be simpler to start from scratch on the design to get the lower arm pins in the right spot.
You might consider bolting it to the rear housing using bolts around the PTO housing and shield area. While redesigning this you might also do something in the way of a drawbar. The greater support you can provide should reduce the potential for housing damage by spreading the force over greater surface.
Good luck with your redesign.

Good idea.

Here's a picture of something similar that might give some ideas. Its the bolted-on 3-point mount that is original on (smaller) YM186D. This particular one has been welded to the drawbar mount as well as bolted to the transmission housing. For the more powerful YM240, additional bracing from the ends of that rod back to the transmission housing might be needed. The main point here is that everything hinges in the same plane.