Takeuchi tb180fr excavator serial 1783.

[notmee54]

What are the most common electrical problems that would cause engine to shutdown and multiple warning lights.

Will run fine with no warning lights, until you turn it off when you try starting it again. Then it will run from 1-30 seconds and warning lights come on and it shuts down

Sometimes it's the rabbit air filter and (im assuming) engine rotation light.

Try it the next day and does the same thing runs good with no warning lights until you shut it down and start it again.

Sometimes it's the triangle and battery light.
I have oil pressure, and ALL the filters have been changed. New alternator, cleaned all terminals from alternator to relay box and all the terminals inside the switch/relay box... battery tested good about 12.9v and running tests about 14.2v.
Really getting frustrated...

Any suggestions on where and what to test would be appreciated.

 

[Kobe Steel]

usually a shut down can occur if the system detects that the engine oil pressure has been lost during operation. Hopefully someone here maybe able to help you with and electrical schematic for you to check and do some tests. I have not long been a member on this website forum but I have found a lot members here are extremely helpful and with an incredible amount of in-depth knowledge to share which you wont always find written in any of those workshop service manuals. if I find anything that can help you I will send it your way.
best regards

 

[heymccall]

First and foremost, if it has a coolant sensor in the top radiator hose, it needs defeated/ bypassed/ disabled. The mere presence of an air bubble in the system will cause a shutdown, as described above.
The single wire going to that sensor needs connected to ground.

 

[heymccall]

Having had 4 of them (2 with the 1783), you can search "TB180FR" on here for all of my exploits.

 

[notmee54]

First and foremost, if it has a coolant sensor in the top radiator hose, it needs defeated/ bypassed/ disabled. The mere presence of an air bubble in the system will cause a shutdown, as described above.
The single wire going to that sensor needs connected to ground.

Does it even when bypassed.

 

[notmee54]

Changed shutoff solenoid, now it will start and run without all the light and warnings, if throttle is turned up some, but now it doesn't shut down with key switch, will only turn off if throttle is all the way down.

Why would key switch stop turning the engine off????

Hav even tried a new switch, does the same thing.
Should I be looking for a diode or relay that isn't working???