ZG327 Regulator

[JunkInMS]

Hi Folks,

I'm not much of a mechanic, but I'm taking a shot at getting a family member's mower running. It has a parasitic battery drain and continues to kill batteries. If we jump it off, it'll run and mow fine. Turn it off, and there's no cranking it again without a jump.

I spoke with the local Kubota dealer/service shop, and they suggested that a likely fault would be the voltage regulator. I have one on order. To try and save money for the elderly family member, I'd like to replace the part myself, if possible. I'm a complete novice on these kinds of things, but the two bolt holes and heat sink fins made it look like this was mounted in an easily-accessible, external location on the engine.

Can someone tell me where to look on the ZG327 to locate the unit? And aside from removing/replacing the connectors and bolts, are there any tips/tricks the experts think I should know?

Many thanks!

JunkInMS

 

[Russell King]

Not sure where it is on the mower but look at illustrated parts lists here

Kubota Tractor Corporation - Illustrated Parts List

- K-PAD - Parts Lists - Illustrated Parts Lists - diagrams

apps.kubotausa.com

This is where the voltage regulator is shown but you will have to look at the frame sections to find where it really is. It may be a jigsaw puzzle to put together where it is located.

I would suggest you remove the battery negative battery terminal before you start work, remove the old one, install the new one, put it back together and then replace the battery cable on the battery.

 

[whitetiger]

Can someone tell me where to look on the ZG327 to locate the unit?

Raise the seat and look at the LH frame rail.

 

[JunkInMS]

MANY thanks to both of you. It was right under the seat as suggested. Also, the photo of the illustrated parts breakdown pointed me in the right direction on where to look for some other pieces/parts to replace some worn/aged items (discharge chute, etc.).

One note for future readers who might be tackling this project... There's a linkage arm of some kind that sits right in the way of the path of the socket for removing the regulator. It was a simple thing to simply disconnect one end of that arm and move it out of the way. You CAN remove/replace the regulator without doing that, but the socket won't sit straight on the bolt head, and you run the risk of rounding the corners of the flanged head.

Again, MANY thanks for the tips! Now I'll charge up the battery and run it a few times to see if it solves the issue. If not, I'll just load it up and take it to the shop.

JunkInMS

 

[InTheWoods]

Hi Folks,
... Turn it off, and there's no cranking it again without a jump....

Hmm.

What if you turn it off, wait only a few minutes and try to restart?

(A parasitic draw is undesired current flow that drains a battery over many hours or days and you didn't describe that.)