D5G XL Park brake came on when using

[mike holcomb]

Personally I wouldn't like to contemplate the idea of doing one in the field but I guess it's not impossible.

The coupler flange is nylon. It's kinda designed as the fuse but can faill all on its own.
How many hours on the tractor.?

7800hrs

 

[mike holcomb]

Update, Cat dealer did the coupler, $13k was the bill. So now 7888hrs machine has come to a stop again! Called CAT they can't make it till Fri. Just went out to look at it, first thing I noticed when trying to move it , it had no speed control, it was down on 1, tried to increase it , it would go up to 2 then drop back to 1. Got it turned around headed to where I wanted to move it to, started going, tried to speed up and it came to stop and gear ⚙️ light came on and parking brake light. Have to check codes. Anyone experience this?

 

[mike holcomb]

I shut power off and back on and got dozer to move out of way, it seems to be pulling to the right when trying to travel straight, rev it up to go faster and the gear light comes on then park brake light and comes to stop.

 

[Nige]

Have to check codes.

That should be your first step. Let us know what you find.

 

[mike holcomb]

That should be your first step. Let us know what you find.

Had a 352 code that I couldn't find and a 251 which says left speed sensor. Wonder why speed sensor would all of a sudden cause problems?

 

[Nige]

I wonder if the Blink Code might be 252 - Service Brake Pedal Position Sensor. If you look at the diagnostics they also tie in with the track speed sensors because the ground wire to the ECM is common for the pedal sensor and the speed sensors.

 

[mike holcomb]

I wonder if the Blink Code might be 252 - Service Brake Pedal Position Sensor. If you look at the diagnostics they also tie in with the track speed sensors because the ground wire to the ECM is common for the pedal sensor and the speed sensors.

It's definitely a 352. I tried to erase it but only the 252 will erase and it blinks 352 with jumper in, 222 with no jumper. Let me look thru the files u just sent me. Thank you

 

[mike holcomb]

I wonder if the Blink Code might be 252 - Service Brake Pedal Position Sensor. If you look at the diagnostics they also tie in with the track speed sensors because the ground wire to the ECM is common for the pedal sensor and the speed sensors.

Do u have any idea where that left speed sensor is so I can ohm it?

 

[Nige]

Do u have any idea where that left speed sensor is so I can ohm it?

See this thread. It talks about the RH sensor and once you’ve found that the LH one ought to be easy enough to figure out.

CODES: D5k2 serial # DW207911

Need to know what CODE IS: > *Warning: "Right Drive Motor" Speed Sensor #2..(Under the WARNING sign is) #2688-8....Where can I locate this sensor? And should I replace it?

www.heavyequipmentforums.com

 

[mike holcomb]

Now that u post that, I did replace the brake sensor on left side and it was full of oil, gonna need to have a look at speed sensor now

 

[Nige]

A sensor full of oil is nailed on evidence that it’s failed.

 

[mike holcomb]

So this plug has some oil in it, not a lot. Sprayed it out, dozer works fine now. Question is , if I replace that sensor does it need to be calibrated so it tracks straight? Or I should be fine to change it? Thought I read it needs calibrated?

 

[mike holcomb]

 

[Nige]

So this plug has some oil in it, not a lot. Sprayed it out, dozer works fine now. Question is , if I replace that sensor does it need to be calibrated so it tracks straight? Or I should be fine to change it? Thought I read it needs calibrated?

Oil in the connector indicates the sensor has failed. You can clean the oil out of the connector now but it will come back again quite quickly.
No calibration AFAIK. It should be plug & play.

The existing one is likely a 183-4584, or maybe a 319-6491. Look for a white tag or a number stamped on the sensor. Either way the latest P/N of sensor is 360-0453.

The 360-0453 sensor may require additional parts to install on your tractor in order to connect to the machine wiring harness. See the SEPD1217 attachment. If you are going to replace one sensor I would suggest to do both at the same time.

 

[mike holcomb]

Perfect, thank you very much. I'll give sensor a try. I ran it last 45min it was fine, it started to pull right again. Unplugged it and plugged back in and it was fine again. So that seems to be problem.

 

[mike holcomb]

Good thing u mentioned the other parts for new style sensor. They had no idea u needed those with new sensor. Basically pins to crimp on and plug they fit into

Oil in the connector indicates the sensor has failed. You can clean the oil out of the connector now but it will come back again quite quickly.
No calibration AFAIK. It should be plug & play.

The existing one is likely a 183-4584, or maybe a 319-6491. Look for a white tag or a number stamped on the sensor. Either way the latest P/N of sensor is 360-0453.

The 360-0453 sensor may require additional parts to install on your tractor in order to connect to the machine wiring harness. See the SEPD1217 attachment. If you are going to replace one sensor I would suggest to do both at the same time.

 

[Nige]

I wasn't 100% sure you would need the extra electrical parts.
Ideally you need a Deustch connector crimp tool to fit the solid pins on to the wires.

 

[mike holcomb]

I wasn't 100% sure you would need the extra electrical parts.
Ideally you need a Deustch connector crimp tool to fit the solid pins on to the wires.

View attachment 292974

Oh course I took them out of truck a fee weeks ago. Service let me use there's

 

[mike holcomb]

Once I get back I gotta look at machine, I dont remember a black wire on old sensor

 

[Nige]

Once I get back I gotta look at machine, I dont remember a black wire on old sensor

Should be 4 wires to the sensor. Red, black, green, & white.