L3130 OPC Timer Relay

[Squeak n Itch]

I believe the OPC is the source of my random engine shutdown. There are four leads red, black, yellow and red/white. Can anyone shed light on which are the input wires and which are the output?

 

[Squeak n Itch]

I believe the OPC is the source of my random engine shutdown. There are four leads red, black, yellow and red/white. Can anyone shed light on which are the input wires and which are the output?

The OPC timer relay was indeed the problem. I replaced it this A.M. and all seems fine for now. I only wish that I had some way to bench test individual components and this whole process would have consumed less time and fewer $$.

 

[Dave M7040]

The OPC timer relay was indeed the problem. I replaced it this A.M. and all seems fine for now. I only wish that I had some way to bench test individual components and this whole process would have consumed less time and fewer $$.

Could you please provide the part number of the part you changed.

I ask because after looking at the WSM, your model tractor seems to be much more computer controlled than say the L3010 where the relay for the engine stop solenoid has a timer function and I am wondering on your L3130 if the relay is just a simple one and the timing function if being done by the 8 bit CPU in the intelli Panel

Dave M7040

 

[FTG-05]

Glad you got it fixed. Per the WSM, page 9-S38:

"Checking OPC Timer
1. Remove the timer. (OPC timer is located behind the panel)
2. Connect jumper leads across the battery positive terminal and
the timer 3 terminal, and across the battery positive terminal and
the timer 4 terminal.
3. Connect jumper leads across the battery negative terminal and
the timer 2 terminal, and across the battery negative terminal and
the bulb terminal.
4. Connect jumper lead across the timer 1 terminal and the bulb
terminal.
5. The bulb lights up when disconnecting a jumper lead from the 3
terminal 0.7 to 1.3 seconds late, the timer is proper.



(1) OPC Timer
(2) Load (Lamp)
(3) Battery (12 V)
A : OPC Timer Relay Side Connector 4A"

Looking at the OPC Timer Relay with the connector lock on the bottom, the relay terminals are as follows:

2 1
4 3

 

[Hemmjo]

Glad you got it fixed. Per the WSM, page 9-S38:

"Checking OPC Timer
1. Remove the timer. (OPC timer is located behind the panel)
2. Connect jumper leads across the battery positive terminal and
the timer 3 terminal, and across the battery positive terminal and
the timer 4 terminal.
3. Connect jumper leads across the battery negative terminal and
the timer 2 terminal, and across the battery negative terminal and
the bulb terminal.
4. Connect jumper lead across the timer 1 terminal and the bulb
terminal.
5. The bulb lights up when disconnecting a jumper lead from the 3
terminal 0.7 to 1.3 seconds late, the timer is proper.



(1) OPC Timer
(2) Load (Lamp)
(3) Battery (12 V)
A : OPC Timer Relay Side Connector 4A"

Looking at the OPC Timer Relay with the connector lock on the bottom, the relay terminals are as follows:

2 1
4 3

I realize this is an old thread, but symptom wise I believe I have the same issue.

Is there an error in the description of this test procedure.

My test light (LED rather than a light bulb) is on all the time with pin #3 connected or not. Does that indicate the OPC switch is bad?