B7100 Generator / Alternator locked up

[BlessedMan]

My B7100 was over heating so I replaced the head gasket and fan belt. Now my alternator/generator is locked up. Could I have the belt too tight? With wires disconnected it still will not turn.

 

[Egon]

It's not uncommon for the Kubota B7100 dynamo to have the bearings seise. To change it out remove the oil and engine rad. The dynamo itself is attached to a coolant flow housing. To get this off there will be one bolt that is difficult. Bending a combination wrench or using a ratchet combination works well.

 

[dennis52]

I think Egon intended "remove coolant".
Be careful not to damage dynamo magnets if you need to use a puller on the front bearing.

 

[Egon]

Egon figured that removing the radiator would require all the coolant to be drained.

The Dynamo is intetegral with a coolant flow passage.