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JD 320D Skid - Aux Hydraulics not working

W

Willsy

Member
Joined
Jan 19, 2022
Messages
14
Location
Colorado
Hi Y'all,

just got a plow delivered, plugged in Aux hydraulics but the right controller rocker switch appears to be doing nothing (no noise, no movement), so I can't turn plow from side to side. I've had the skid for a couple of years but never attached aux hydraulics before, so I don't know if they ever worked. This a low-flow manual controls unit.

Would appreciate some pointers on how to trouble shoot.

Cheers,
Ian
 
T

Txhayseed

Senior Member
Joined
Dec 23, 2019
Messages
610
Location
Texas
Well no movement out of the switch would lead me to think the switch is straight wonky
 
HDGUI

HDGUI

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Sep 11, 2020
Messages
10
Location
South dakota
Is there a section in your user manual that describes the operation of the aux circuit? You may have a fuse that protects the electrical supply to that switch. Pop out the switch and see if you have power on any of the pins. Or do the simple thing first and see what you have for circuit protection...
 
W

Willsy

Member
Joined
Jan 19, 2022
Messages
14
Location
Colorado
HDGUI said:
Is there a section in your user manual that describes the operation of the aux circuit? You may have a fuse that protects the electrical supply to that switch. Pop out the switch and see if you have power on any of the pins. Or do the simple thing first and see what you have for circuit protection...
Click to expand...

Good call, I'll start with the fuses.
 
mg2361

mg2361

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Jul 5, 2016
Messages
5,152
Location
Pennsylvania
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Equipment Mechanic
The auxiliary proportional switch is controlled by the monitor, so if the monitor is working then the fuses are good.

1st question, are you in the seat with the seat bar down? If not, that disables the auxiliaries.

Press and hold the menu button for about 5 seconds until the words "service menu" appear in the screen.

Press next until diagnostics displays and press select. Press next until codes, press select. Post any stored or active codes.

Press back. Press next until EMU outputs, then press select. Press next until AUX Extend amperage, press select. Move the roller and see if that reading changes. Then press back, then next for AUX Retract amperage and do the same. Do the amperages change when moving the roller?

I do not think the roller switch is in the Switch section of diagnostics on the "D" series but it would be worth a look. That way if it is there you can see if there is an input to the EMU.
 
Last edited:
W

Willsy

Member
Joined
Jan 19, 2022
Messages
14
Location
Colorado
mg2361 said:
The auxiliary proportional switch is controlled by the monitor, so if the monitor is working then the fuses are good.

1st question, are you in the seat with the seat bar down? If not, that disables the auxiliaries.

Press and hold the menu button for about 5 seconds until the words "service menu" appear in the screen.

Press next until diagnostics displays and press select. Press next until codes, press select. Post any stored or active codes.

Press back. Press next until EMU outputs, then press select. Press next until AUX Extend amperage, press select. Move the roller and see if that reading changes. Then press back, then next for AUX Retract amperage and do the same. Do the amperages change when moving the roller?

I do not think the roller switch is in the Switch section of diagnostics on the "D" series but it would be worth a look. That way if it is there you can see if there is an input to the EMU.
Click to expand...

Awesome, thanks, going to try this in a bit. Yep, was in seat with bar down.
 
W

Willsy

Member
Joined
Jan 19, 2022
Messages
14
Location
Colorado
mg2361 said:
The auxiliary proportional switch is controlled by the monitor, so if the monitor is working then the fuses are good.

1st question, are you in the seat with the seat bar down? If not, that disables the auxiliaries.

Press and hold the menu button for about 5 seconds until the words "service menu" appear in the screen.

Press next until diagnostics displays and press select. Press next until codes, press select. Post any stored or active codes.

Press back. Press next until EMU outputs, then press select. Press next until AUX Extend amperage, press select. Move the roller and see if that reading changes. Then press back, then next for AUX Retract amperage and do the same. Do the amperages change when moving the roller?

I do not think the roller switch is in the Switch section of diagnostics on the "D" series but it would be worth a look. That way if it is there you can see if there is an input to the EMU.
Click to expand...

I got some more information. Haven't googled this yet, thought I would post here first.

Active Codes: 1/1 EMU 523694.12
says in panel: AUX HYD, Channel 2 INPUT, then flashes DEVICE FAULT.

EMU Outputs, shows AUX Extend 0.00A and AUX Retract 0.00A - Moving the rocker switch had no affect on amps.
Not sure if this helps, but EMU Power showed Switched 14.7V, Unswitched 14.4V

Found Switches in diagnostics menu, Aux Flow Set was set to OFF, but I am not sure if this is the switch that allows AUX to continue outside the cab?
 
W

Willsy

Member
Joined
Jan 19, 2022
Messages
14
Location
Colorado
From what I have read elsewhere, I think I may be needing a new right Joystick, which I believe is AT356796. Thoughts?
 
mg2361

mg2361

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5,152
Location
Pennsylvania
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Equipment Mechanic
Willsy said:
Active Codes: 1/1 EMU 523694.12
Click to expand...

That is why there is 0 amps showing. The code definition is Auxiliary hydraulic control channel 2 input does not compare proportionally to channel 1 input.

If you clear the code and then the code returns, then you most likely need a right joystick. However in my OCDness, I still would make sure the wiring between the handle and the EMU are without issues before I put a $400 handle on. Make sure it has the 5V power supply, good ground and that the channel 1 (H20 green) and channel 2 (H21 green) wires are not shorted to ground or to any other wire.

AT356796 would be correct.

Willsy said:
Aux Flow Set was set to OFF, but I am not sure if this is the switch that allows AUX to continue outside the cab?
Click to expand...

That is the switch to allow auxiliaries to function when you leave the operators seat.

I PM'd you.
 
W

Willsy

Member
Joined
Jan 19, 2022
Messages
14
Location
Colorado
mg2361 said:
That is why there is 0 amps showing. The code definition is Auxiliary hydraulic control channel 2 input does not compare proportionally to channel 1 input.

If you clear the code and then the code returns, then you most likely need a right joystick. However in my OCDness, I still would make sure the wiring between the handle and the EMU are without issues before I put a $400 handle on. Make sure it has the 5V power supply, good ground and that the channel 1 (H20 green) and channel 2 (H21 green) wires are not shorted to ground or to any other wire.

AT356796 would be correct.



That is the switch to allow auxiliaries to function when you leave the operators seat.

I PM'd you.
Click to expand...

Awesome, thank you so much for your help! I'll verify wiring and voltages hopefully today.
 
W

Willsy

Member
Joined
Jan 19, 2022
Messages
14
Location
Colorado
Finally got around to testing the circuit. Yes, there is 5V and the ground is good. Neither channel 1 or channel 2 appear to be shorted. So I am guessing I need a new joystick.

One question, how do you replace the joystick, the new one appears to have the connector attached, but there is no way that the connector will fit through the tube that the wire goes through. Any ideas how you replace the joystick given the connector won't fit through the tube it is in?
 
W

Willsy

Member
Joined
Jan 19, 2022
Messages
14
Location
Colorado
Can anyone recommend a suitable pin extraction tool? JD wants ~$200 for theirs, and it's on back order. I have no idea what kind of pin it is, so kind of hard to know which tool to order.
 
W

Willsy

Member
Joined
Jan 19, 2022
Messages
14
Location
Colorado
mg2361 said:
It should be a Deutsch connector. All you would need for that is a small screwdriver. Post a picture of the connector.
Click to expand...

Just wanted to report back. Yes it was a Deutsch connector. Watched a Youtube video on how to disassemble/assemble, took off the old one, ran the cable, rewired it, and it's all working now!

Thank you so much for all your help and guidance mg2361, you were a huge help!!!
 
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