G1900 / D722 engine mount limiter

[Hugo Habicht]

Hello,

the G1900 has some form of engine movement limiter mounted on the engine plate rear end at front of the tractor under the flywheel (see first picture, flywheel removed). I cannot find the parts in the parts manual, it is neither with the frame where the engine rubber mounts are shown nor in the drawing showing the plate.

Can anybody point me in the right direction where I find those parts in the parts manual?

Also in the workshop manual I could not find instructions how it is adjusted. Any help / hints / advice appreciated here.

Kind regards,
Hugo

 

[North Idaho Wolfman]

Blast all the grease off of it and everything below it.

I'm finding Nothing on any bolts in that location.
It's looking like someone added a rubber mount.
The hole being drilled off center is not very Stock looking.
The plate that's bolted onto the frame look broken / worn in two and not painted.
If there are nuts holding the bolts to the frame then It's not stock parts.

 

[Hugo Habicht]

Good point with the off centre bolt. But I think it is centered with the frame, will have to double check, difficult to see on the picture.

The broken part is some rubber material, perished. And the bolts holding it are from Kubota. I don't think they would have used this type bolt if it is a DIY job. And they are threaded in the frame.

Weird ...

Even if it was added later there must be a good reason for it. Nobody in Ireland would do something like this if it's only "nice to have".

 

[Hugo Habicht]

It's looking like someone added a rubber mount.

Hello Wolfman,

thank you, that is the key!

Why would somebody add something like this, preventing the engine from going down too far at the front?

There is the front PTO with two big V-belts that also form the clutch and pulling down the engine, and Bingo, there are the parts in the catalogue with the PTO tensioner / clutch.

Thank you very much !

Kind regards,
Hugo

p.s.: do you ever sleep?
considering Idaho time zone it must be the middle of the night.

 

[North Idaho Wolfman]

Hello Wolfman,

thank you, that is the key!

Why would somebody add something like this, preventing the engine from going down too far at the front?

There is the front PTO with two big V-belts that also form the clutch and pulling down the engine, and Bingo, there are the parts in the catalogue with the PTO tensioner / clutch.

Thank you very much !

Kind regards,
Hugo

p.s.: do you ever sleep?
considering Idaho time zone it must be the middle of the night.

Nope don't sleep a lot.

Good job finding that info, I looked, but guess I didn't look deep enough.

 

[Hugo Habicht]

... I looked, but guess I didn't look deep enough.

I do not expect you to dig through hundreds of pages to look for a tiny part. But thank you for the reply, that sent me in the right direction, appreciated!

There is some logic to it (from an engineering perspective) where they put it but very tough to find when you don't make the PTO connection.

I still have some difficulties finding my way around in the parts list, from car manufacturers I am used to a different structure.

It looks to me they start with the engine and follow the drive train. After the engine, fuel system, cooling, fine kindof engine related, then electrics (I find that odd in this place), then transmission, rear axle first, then front axle and, really weird, the frame is in the front axle group. I would have thought this is a major part of a tractor and would have its own group. But maybe adult size tractors don't really have a separate frame. So logically grouped with a few pitfalls for newbies

 

[North Idaho Wolfman]

I do not expect you to dig through hundreds of pages to look for a tiny part. But thank you for the reply, that sent me in the right direction, appreciated!

There is some logic to it (from an engineering perspective) where they put it but very tough to find when you don't make the PTO connection.

I still have some difficulties finding my way around in the parts list, from car manufacturers I am used to a different structure.

It looks to me they start with the engine and follow the drive train. After the engine, fuel system, cooling, fine kindof engine related, then electrics (I find that odd in this place), then transmission, rear axle first, then front axle and, really weird, the frame is in the front axle group. I would have thought this is a major part of a tractor and would have its own group. But maybe adult size tractors don't really have a separate frame. So logically grouped with a few pitfalls for newbies

Sounds like you're fully "enjoying the Quirks" of dealing with Kubota prints and manuals!
I've gotten pretty good at digging through them and getting info out of them.

Looks like you only issue is part #150 is plumb worn out.
I would make a new plate out of a piece AR 400 / 500, as it's wear resistant.
I keep some around here just for such uses.

 

[Hugo Habicht]

Sounds like you're fully "enjoying the Quirks" of dealing with Kubota prints and manuals!
I've gotten pretty good at digging through them and getting info out of them.

Yes, all new, but fun, I am enjoying it. I'd say you know the part manuals inside out, quite amazing when somebody ask a question and you can pinpoint the very part that is faulty.

Looks like you only issue is part #150 is plumb worn out.
I would make a new plate out of a piece AR 400 / 500, as it's wear resistant.
I keep some around here just for such uses.

Yes, but I was not sure before if other things had crumbled away too .

The damaged strip material is some elastic material where the plate can hammer into. I have a strip of "Vulkollan" here, that is a pretty tough rubber material that is put under wacker plates to protect the paving stones, I think that should be suitable, have to check the Shore hardness. Some NBR material is floating around as well.

 

[North Idaho Wolfman]

Yes, all new, but fun, I am enjoying it. I'd say you know the part manuals inside out, quite amazing when somebody ask a question and you can pinpoint the very part that is faulty.



Yes, but I was not sure before if other things had crumbled away too .

The damaged strip material is some elastic material where the plate can hammer into. I have a strip of "Vulkollan" here, that is a pretty tough rubber material that is put under wacker plates to protect the paving stones, I think that should be suitable, have to check the Shore hardness. Some NBR material is floating around as well.

AWWW that explains it much better, I was thinking WOW that metal has been really been beat on to wear out like that.

The Vulkollan should be perfect for that use, and it's easily replaced.

 

[Hugo Habicht]

The Vulkollan should be perfect for that use, and it's easily replaced.

Yes, and I think this damaged part explains why the PTO (belt) clutch for the deck was a bit sluggish and did not engage fully. The rubber was gone, the engine pulled too low and not enough force on the V-belts.

The more I work on this little tractor the more I learn. Love working on it and getting things right, bit by bit.