fan freezing up B 7100hst
- Thread starter cbpete
- Start date
- Views: 1397
Egon
Epic Contributor
The Dynamo bearings may be worn out. 
Do you have a PDF showing all the parts? If not send your email and you will receive one.
Do you have a PDF showing all the parts? If not send your email and you will receive one.
Thomas
Epic Contributor
- Joined
- Apr 6, 2000
- Messages
- 31,016
- Location
- Lebanon,NH.
- Tractor
- Kubota B2650HSD w/Frontloader & CC LTX1046 & Craftman T2200 lawn mower.
First off welcome to TBN.
Does the fan turn at all?..if so call you hear high pitch noise or grinding sound if so not good.
Have you check the belt for wear or slack?
Does the fan turn at all?..if so call you hear high pitch noise or grinding sound if so not good.
Have you check the belt for wear or slack?
czechsonofagun
Elite Member
I am with Egon. Try to take the belt off and spin the dynamo/alternator with hand. I had the bearing go bad and the belt eventually stopped and burned apart.
You can tell if the bearing is good or bad by turning it by hand.
You can tell if the bearing is good or bad by turning it by hand.
no I don't have the pdf
my email is cbpete1@gmail.com
I also have the fan off and dynamo will move but very hard to turn at all, the fan belt is approx 2mo old and still good shape
thanks
my email is cbpete1@gmail.com
I also have the fan off and dynamo will move but very hard to turn at all, the fan belt is approx 2mo old and still good shape
thanks
Egon
Epic Contributor
The PDF's are in the mail. Let me know if you don't get them.
Suggest taking Dynamo apart. If the bearings are bad you may be able to replace them and not have to purchase a new alternator.
[Lubing them and hand turning may work but there is a good possibility they are damaged]
Suggest taking Dynamo apart. If the bearings are bad you may be able to replace them and not have to purchase a new alternator.
[Lubing them and hand turning may work but there is a good possibility they are damaged]
Egon
Epic Contributor
To remove dynamo it may be easier to remove hood, oil cooler and radiator.
On the dynamo there will be one well placed nut/bolt? that is difficult to get at. Bend a wrench to fit or, as others have done, use a ratcheting boxend.
On the dynamo there will be one well placed nut/bolt? that is difficult to get at. Bend a wrench to fit or, as others have done, use a ratcheting boxend.
Thanks again for your help. I got new bearings for the dynamo but forgot to order new gasket so I had to wait. got everything put back together and it is working fine, much cheaper than new dynamo. sure hope it lasts I don't look forward to putting that nut on the bottom on ever again. I don't know how you do it, I ended up putting enough grease on the nut that it stuck on the stud (finally) and was able to to get it started. I'm keeping that wrench you told me to bend just incase.
thanks again.
thanks again.
Egon
Epic Contributor
It is fun getting that nut threaded again, isn't it! Blue air!:thumbsup: