Deere 3010 diesel trouble starting

Deeredawg · May 2, 2021

Can anybody tell me what these are?

chuck from neb · May 2, 2021

starter relays

Deeredawg · May 2, 2021

Thanks. Can anyone point out where they are on a 3010 wiring diagram? Im a bit lost on this 24V diesel. Im getting nothing at the turn of the switch and trying to troubleshoot.

Northvale PA · May 2, 2021

Make sure tractor is in park, pull switch out of the dash panel and try to Hotwire across the switch terminals to see if the switch is bad. They do wear out and just stop working.

Deeredawg · May 2, 2021

Thanks. On a 24V system which are the leads to jump?

matthies · May 2, 2021

They are circuit breakers, to prevent an electrical fire.

matthies · May 2, 2021

I think they were added after the diagrams were printed. With a test light you should have power on both terminals of the circuit breakers, if power on one side breaker is bad.

wore out · May 2, 2021

As the others have said they are circuit breakers.

If the system is as in standard configuration including wire colors, the voltage at BOTH terminals on the breaker with the BLUE wires should measure (-) 12 Volts (nominal to the chassis, and BOTH terminals on the breaker with the BROWN wires should measure (+) 12 Volts (nominal) to the chassis.

The voltage between either terminal on one breaker and either terminal on the other breaker should be 24 Volts (nominal).

As to it not cranking, there are some possibilities besides a failed switch, first place I'd look is at the neutral safety switch located under the cowling ahead of the shift drum, below is a photo of the setup on a 4010, IIRC, the 3010 switch setup is similar.

<img src = https://i.imgur.com/arbC8mX.jpg>

Deeredawg · May 2, 2021

Thank you. Ill give it a look. I appreciate it.

Tx Jim · May 3, 2021

(quoted from post at 22:31:19 05/02/21) I think they were added after the diagrams were printed. With a test light you should have power on both terminals of the circuit breakers, if power on one side breaker is bad.

I agree with matthies & wore out that the circuit breakers(AR47710) were added later to help prevent 24 volt electrical fires & not pictured in parts catalog.

With """"trans in neutral""" one can short across smaller terminal marked with an "S" & upper larger terminal on solenoid to emergency start engine

caterpillar guy · May 3, 2021

Yup circuit breakers . Those 24 volt systems would keep me from ever wanting any of those models.

SVcummins · May 3, 2021

None to swift are yuh

SVcummins · May 3, 2021

You need to spend some time with a volt ohm meter and check all the switches to see if they are closing like they should

wore out · May 3, 2021

(quoted from post at 17:09:17 05/03/21) Yup circuit breakers . Those 24 volt systems would keep me from ever wanting any of those models.

HMMMM, that seems STRANGE coming from a "CAT" guy, CAT has certainly been no stranger to 24 Volt systems.

Deeredawg · May 7, 2021

Hey. Thanks for the suggestion. Switch seems to be functioning though. Trying to Hotwire next. Let the sparks fly.

Deere 3010 diesel trouble starting

Deeredawg

New User

chuck from neb

Member

Deeredawg

New User

Northvale PA

Member

Deeredawg

New User

matthies

Well-known Member

matthies

Well-known Member

wore out

Well-known Member

Deeredawg

New User

Tx Jim

Well-known Member

caterpillar guy

Well-known Member

SVcummins

Well-known Member

SVcummins

Well-known Member

wore out

Well-known Member

Deeredawg

New User

Similar threads