JD 1070 charge light help?

[Zeke56]

Thanks again for all the help from everyone.
Got the 1070 in the shop today, disconnected the (3) add on lights. No charge light at high throttle!
Turned on the original head lights. No charge light!
Turned on original flashers, and charge light comes on intermittently in sync with flashers.
Do you think it's just a bad flasher ground?
Thanks,

 

[Dave M7040]

Thanks again for all the help from everyone.
Got the 1070 in the shop today, disconnected the (3) add on lights. No charge light at high throttle!
Turned on the original head lights. No charge light!
Turned on original flashers, and charge light comes on intermittently in sync with flashers.
Do you think it's just a bad flasher ground?
Thanks,

No I don't. I just think you are running on the borderline voltage and current with the flawed output from your dynamo.

Turn off the headlights and turn on the flashers. My guess would be charge light off.

Don't go wasting money on another regulator. Do the AC voltage check first.

Dave M7040

 

[Zeke56]

No I don't. I just think you are running on the borderline voltage and current with the flawed output from your dynamo.

Turn off the headlights and turn on the flashers. My guess would be charge light off.

Don't go wasting money on another regulator. Do the AC voltage check first.

Dave M7040

Sorry, Dave. I didn't explain it very well.
With headlights off, just flashers, the charge light comes on.
At this point, whenever the flashers are on, the charge light's on.
Just headlights = no charge light.

 

[Dave M7040]

Sorry, Dave. I didn't explain it very well.
With headlights off, just flashers, the charge light comes on.
At this point, whenever the flashers are on, the charge light's on.
Just headlights = no charge light.

If you want to rule out the flasher ground, use any piece of wire connected to the battery - post and the other end to the flasher body.

If the symptoms remain the same the flasher ground is good.

Dave M7040

 

[rScotty]

Sorry, Dave. I didn't explain it very well.
With headlights off, just flashers, the charge light comes on.
At this point, whenever the flashers are on, the charge light's on.
Just headlights = no charge light.

Well that's interesting: " whenever the flashers are on, the charge light's on.Just headlights = no charge light"

In that case, I wonder if the flasher switch is tied into the wrong hot wire? It could have been done at any time - even at the factory. If so, it may be adding the flasher circuitry to Voltage Regulator (VR) in a way that makes the VR go wonky. (wonky is a technical term .

But we don't need to diagnose why it happens. This is simple. Look at the flasher switch and figure out which side of the switch is receiving the power from the system (input) and which side of the switch connectors is passing that power onwards to the flashers. Then disconnect that input wire to the switch and replace it with a dedicated wire running directly to the + terminal or terminal block of the battery. Use a wire dedicated for this purpose, #16 or 18 stranded wire should be sufficient.

If that fixes the problem, your tractor is wired wrong. It might not have been "wrong" back when all the components were brand new, of course.
rScotty

 

[Zeke56]

If you want to rule out the flasher ground, use any piece of wire connected to the battery - post and the other end to the flasher body.

If the symptoms remain the same the flasher ground is good.

Dave M7040

OK Dave, so both flasher grounds are good per your suggestion. We cleaned up the posts and grounding area anyway.
Disconnected auxiliary lights and now the charge light comes on at 1700 rpms when flasher lights (only) are on. When running just the headlights or flashers and headlights NO charge light comes on regardless of rpms.

Light switch checked out good with voltmeter and so did the alternator.
Switched the three auxiliary lights to LEDs and had the same results with the CL with flashers (only). I can run the tractor at night just fine with just lights or lights and flashers.
Still curious why only the flashers (only) are causing the CL to come on?
Thanks in advance.

 

[Dave M7040]

OK Dave, so both flasher grounds are good per your suggestion. We cleaned up the posts and grounding area anyway.
Disconnected auxiliary lights and now the charge light comes on at 1700 rpms when flasher lights (only) are on. When running just the headlights or flashers and headlights NO charge light comes on regardless of rpms.

Light switch checked out good with voltmeter and so did the alternator.
Switched the three auxiliary lights to LEDs and had the same results with the CL with flashers (only). I can run the tractor at night just fine with just lights or lights and flashers.
Still curious why only the flashers (only) are causing the CL to come on?
Thanks in advance.

Give me the actual numbers of the alternator check please.
As a start, remove one flasher bulb out of the 2 or 4, (I think you have 4) and see what happens. No change, remove the second bulb and again see what happens.

Check bulb info to owners manual spec's.

Post photo of flasher.

Dave M7040

 

[Zeke56]

Well that's interesting: " whenever the flashers are on, the charge light's on.Just headlights = no charge light"

In that case, I wonder if the flasher switch is tied into the wrong hot wire? It could have been done at any time - even at the factory. If so, it may be adding the flasher circuitry to Voltage Regulator (VR) in a way that makes the VR go wonky. (wonky is a technical term .

But we don't need to diagnose why it happens. This is simple. Look at the flasher switch and figure out which side of the switch is receiving the power from the system (input) and which side of the switch connectors is passing that power onwards to the flashers. Then disconnect that input wire to the switch and replace it with a dedicated wire running directly to the + terminal or terminal block of the battery. Use a wire dedicated for this purpose, #16 or 18 stranded wire should be sufficient.

If that fixes the problem, your tractor is wired wrong. It might not have been "wrong" back when all the components were brand new, of course.
rScotty

Sorry Scotty, didn't see this post till just now.
The wiring (other than the auxiliary lights) was original from factory.
Even after the auxiliary lights were added, everything worked fine until a couple years ago.

 

[Zeke56]

Give me the actual numbers of the alternator check please.
As a start, remove one flasher bulb out of the 2 or 4, (I think you have 4) and see what happens. No change, remove the second bulb and again see what happens.

Check bulb info to owners manual spec's.

Post photo of flasher.

Dave M7040

Dave, there are two flashers. One is original and the other's oem and looks exactly like the original.
I may have replaced a bulb at one time? I can do your checks and post a pic of the flasher.
Two things, 1. Both flashers worked fine a couple years ago. 2. With both of these flashers, (3) LED auxiliary lights and the headlights all on, the charge light does not come on regardless of rpms. I'm no electrical expert, but wouldn't that exclude the flashers from being the problem?
Thanks,

 

[Dave M7040]

Can you confirm this is what your tractor looks like.

I am studying the wiring diagrams again.

I see one flasher with 4 wires being for the left and right warning lights. No ground shown for this flasher.

The second flasher is shown with 5 wires, one black wire being tied into a ground point somewhere.
This flasher seems limited to the Park Brake Switch and warning light.

Could it be that your flasher are different? It could explain a lot. One is grounded and the other not.

I don't have time tonight to look for part numbers for the two flashers but if you have any invoice for the one you replaced and also tell me why it was replaced it might help with the mystery.

Back again
The more I look at their parts the more confused I become. JD calls flashers "Relays" and then adds the descriptor "flasher"

Can you post some photos of these two flashers . One close enough so that I can see the wire colors.

Also post a picture from your owners manual of any flasher location

When your park brake is on does a warning light flash?

Do you have the optional turn signal switch?

Dave m7040