Tym 233 alternator not charging

[jaln]

My alternator is not charging.
It probably has not for some time and I have gotten by charging with a battery charger and replacing batteries.
The tractor runs a long time without the alternator charging.

I have two schematics for my T233, one in a service manual, and one in an owners manual.
Both are barely readable. You can't blow them up because they are not vector drawings, just bitmaps.
Does anyone have a vector version so I can easily read the darn thing?

I have tested the continuity of the large stud on the back of the alternator with the fat white wire.
It looks like it should connect through the 50A Alternator Fuse on the firewall, and then back to the starter solenoid stud, and then continue to the positive side of the battery.
Therefore, I should get zero resistance from the alternator stud, to the stud that the fat white wire on the starter solenoid connects, and which connects also back to the positive terminal of the battery.
I get an open connection, infinity, so I think the 50A fuse must be blown.
Anyone have a generic part number for that fuse and/or any advice?

 

[Bud Soda]

Not telling you it's the right thing to do but I jumped my 40a fuse with a piece of solder then put the clear top back back on. Had it blow two more times before I found the problem, Chafed wiring under the frame. The solder jumper works just fine. Now I would not use wire to jump it as it will not melt like the solder does.

 

[jaln]

Found it!
Pulled dash. (filthy in there)
Found 50A fuse. (not conveniently located for replacement)
It was still intermittently making contact, but broken in the middle of the link.
On my way to NAPA...

 

[jaln]

Bud, it looks like it had a drop of solder to start with.
In my case it was intermittent because there was no significant gap burned away.
It would connect and disconnect if rattled.
Anyway, I think that got it.

 

[Bud Soda]

Yeah I just spread them apart about 1/16 of an inch and soldered between them. Didn't know where to find a fuse like that local.

 

[jaln]

I got one at NAPA. Not the best price, but it is "close" to me. NAPA 782-2030.
Autozone: Bussmann/Fusible Link BP-FLF-50-RP at AutoZone.com (better pricing)
You can get 5 on eBay relatively cheap.
Amazon: Amazon.com: Cooper Bussmann FLF-50 Fusible Link: Automotive
Google: Fuse 50A FLF for lots of hits

 

[Bud Soda]

I got one at NAPA. Not the best price, but it is "close" to me. NAPA 782-2030.
Autozone: Bussmann/Fusible Link BP-FLF-50-RP at AutoZone.com (better pricing)
You can get 5 on eBay relatively cheap.
Amazon: Amazon.com: Cooper Bussmann FLF-50 Fusible Link: Automotive
Google: Fuse 50A FLF for lots of hits

Thanks for the info!