SMTAD quick question

SW EM

Member
Can anybody help me find a pdf version of the operator's manual for this tractor? I would like to be able to access it using my computer or phone. I am trouble shooting why the tractor won't start on gas anymore. I have done some research on this site and learned about decompression valves and the other mechanisms which factor into switching fuels.

The next time I am home I will check the tractor over. It has been about 10 years since it wouldn't start, and it has sat in a barn ever since. Until now I have never had a chance to see what was wrong.

Thanks everyone!
 
you could just sell me the tractor. lol. i will find the problem. best to just check for spark would be the first step, presuming it is getting gas.
 
If you are comfortable with the risks, and have a cooperating reliable helper you can pull start it on diesel. It will take a half mile to get the cylinder
temps up to fire, but it will give you incentive to go for the gas start to have it running. Jim
 
Got spark? Got fuel? Let's start there before we go nuts with adjusting linkages and checking valves.
 
Another thing to remember is that the carb
has a linkage that goes to it that shuts the
flow of gas off when in diesel mode. That
linkage was stuck on my UD554, and wouldn't
allow any gas to enter the carb.
 
Yep, when I get home those will be the first things I'll check. Since it ran fine before, this leads me to believe that one of the fuel switchover features is stuck. Most likely is could be the gas to the carb. If I remember right, doesn't the distributor turn backwards on these?
 
Haha Rustred, good one ;) It is an original one, still looks good and the decals are sharp. If all goes well it will be at RPRU next summer.
 
(quoted from post at 12:38:47 08/17/16) Yep, when I get home those will be the first things I'll check. Since it ran fine before, this leads me to believe that one of the fuel switchover features is stuck. Most likely is could be the gas to the carb. If I remember right, doesn't the distributor turn backwards on these?

Yes the distributor turns backwards compared to the gas model.

Dan
 
(reply to post at 17:37:26 08/16/16)

Most of the time it's the contact points in the intake manifold
If it's been setting they are dirty
I have several and I always start there
If anyone wants an unmolested SmTAD I have one
Doug
 

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Back
Top