Alternator ?

dgthomas

New member

Equipment
B7300 mower boxblade
Jul 24, 2014
2
0
0
Abingdon VA 24211
Just bought a used Kubota B7300 and on second day of usage, the battery indicator light came on and a squealing noise started under the hood. After shutting down and not seeing any thing obvious, restarted and squealing noise resumed and engine started to choke down. I'm assuming the alternator is frozen up ??

If so, what is the recommended replacement?
 

85Hokie

Moderator
Staff member
Lifetime Member

Equipment
BX-25D ,PTB. Under Armor, '90&'92-B7100HST's, '06 BX1850 FEL
Jul 13, 2013
10,745
2,551
113
Bedford - VA
Just bought a used Kubota B7300 and on second day of usage, the battery indicator light came on and a squealing noise started under the hood. After shutting down and not seeing any thing obvious, restarted and squealing noise resumed and engine started to choke down. I'm assuming the alternator is frozen up ??

If so, what is the recommended replacement?
is it possible to remove the belt and run the tractor? If you can remove the belt, the pulley should spin very easily by hand.

I would think that the pulley would bind the belt and you would smell rubber burning, the fact that you have a squeal says that the bearing is turning but it is binding.

take the belt off, see if it spins freely, if not - you have the problem in your hand. If it does spin freely, start the tractor and see if sound is still there.

report back.
 

Tooljunkie

Well-known member
Lifetime Member

Equipment
L1501,home built carry all, mini plow blade.
May 13, 2014
4,150
33
48
60
Lac Du Bonnet, Manitoba,Canada
Just a thought,bearings can be replaced in most alternators. But it does require a little patience.
As mentioned above, remove belt and spin all belt driven parts.
Dont run it too long without belt.
 

North Idaho Wolfman

Moderator
Staff member
Lifetime Member

Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Jun 9, 2013
30,202
6,372
113
Sandpoint, ID
I'm betting more on a seized water pump than an alternator being seized.
Pull the belt and see which one doesn't spin easy. ;)