LTX1050 VT No PTO. Where is the relay?

[chriskay301]

Model: LTX 1050 VT
Seriel: 1E279H60038
Year: Says it meets 2003 safety standards. So atleast 03?
Wiring Diagram I've been using

Issue:
The other day I was cutting and the PTO died on me. Ever since, I cannot get the blades to engage. Runs fine otherwise.

What I've Done
1. Checked blades. They all spin by hand without issue.
2. Tested in caution mode with no kids around button pressed. No change in function.
3. Tested relay with engine off. Can sometimes hear relay click when PTO switch is pulled, sometimes can't. I think this makes sense, as I've been able to get the blades to go for a split second a few times, but never stay on.
4. Tested switch. Switch has continutiy in both on and off positiions per notes on the side of the switch. Ignition knows PTO switch is on.
5. Tested PTO. Resistance is 3.8 Ohm. Seems normal from what I've read.
6. Tested voltage at the PTO harness. Blue/white wire (switch output->PTO) had 12V (tested to battery neg). White wire (PTO out) has 12V.

From what I can tell from the diagram, that white wire should go to Relay 725-164b. However, I can't locate the relay.

Does it make sense that it is the relay, or am I incorrect/missing something?

Does anyone have information where to find this relay? I also don't see this relay shown when I go to look up parts for my tractor.

Thanks for the help.

[R Bedell]

First, welcome to OCC............

Tested PTO. Resistance is 3.8 Ohm.

I assume this means you have a VOM or DVM and know how to use it ??

[Billy-O]

I'm confused..... As per #3 you tested relay BUT near end of post you say you can't find relay? Correct me if I'm wrong, I see just one PTO relay in wiring diagram provided by you.

[chriskay301]

Originally Posted by R Bedell

First, welcome to OCC............



I assume this means you have a VOM or DVM and know how to use it ??

Yeah. Powerprobe too.

Originally Posted by Billy-O

I'm confused..... As per #3 you tested relay BUT near end of post you say you can't find relay? Correct me if I'm wrong, I see just one PTO relay in wiring diagram provided by you.

For #3, when I say tested, I mean by sound. I would sometimes hear the relay click, sometimes I wouldn't. However, I couldn't figure out where the relay was.

[Billy-O]

Originally Posted by chriskay301

Yeah. Powerprobe too.




For #3, when I say tested, I mean by sound. I would sometimes hear the relay click, sometimes I wouldn't. However, I couldn't figure out where the relay was.

If diagrams and exploded views don't show the relay, it might just be pigtailed and taped to the wiring harness. It seems relay is available and cheap.

[R Bedell]

Here is an Isolated Diagram of the PTO.

* The BLU/WHT wire is your 12V+ coming from the PTO Switch
* The WHT wire is your ground that comes from the Reverse Relay then to the RMC Module.

AS A TEST......

Run a jumper wire from Battery Ground to the WHT wire (bypassing all devices) and see if your PTO clutch works.

Report back on your findings.

[chriskay301]

Originally Posted by R Bedell

Here is an Isolated Diagram of the PTO.

* The BLU/WHT wire is your 12V+ coming from the PTO Switch
* The WHT wire is your ground that comes from the Reverse Relay then to the RMC Module.

AS A TEST......

Run a jumper wire from Battery Ground to the WHT wire (bypassing all devices) and see if your PTO clutch works.

Report back on your findings.

Yes, with this setup you can hear the PTO working.

[R Bedell]

Did you actually start the tractor, and turn on the PTO as requested, with the Test Procedure ??

[chriskay301]

Originally Posted by R Bedell

Did you actually start the tractor, and turn on the PTO as requested, with the Test Procedure ??

Did it with the mower ON this time. Blades spin, yes.

[R Bedell]

Then, the problem lies with the Ground Side of the circuit.

I'll look now