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post #1 of 8 Old 11-06-2018, 12:16 PM Thread Starter
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eGator - 3 clicks and no-go when pressing the throttle pedal

Our eGator (#2) started acting up last night - when pressing the throttle after stopping, there are 3 clicks and then nothing. If I press the pedal a few more times, the same thing happens and then eventually it might move on one of the next presses.

The Curtis 1264-5403 controller flashes the 5,3 diagnostic code. According to the Deere technical manual (TM1766), this is indicates that the Motor Relay contacts Did Not Close. So, I guess I'll start with the Motor Relay Test procedure (page 6-73) in the manual and see what is found. Maybe the 3-clicks is part of a retry procedure from the Motor Controller logic if the first application of power to the relay coil does not result in Battery voltage switching through to the controller?

Just wondering if there is any BTDT experience that has also seen this relay fail with the "3-clicks, no-go" behavior?

There are about 1950 hours on this machine from MY2000. We've had it for about 2 months and are enjoying it so far. eGator #1 is still awaiting new batteries, tires and seats before going back on the road/lawn.

Last edited by khnitz; 11-07-2018 at 10:19 AM.
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post #2 of 8 Old 04-14-2019, 10:03 AM
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Today I found a link to the John Deere Technical Manual for the eGator.

Thought I would share

http://golftechs.us/Manuals/JDegator.pdf

Parts manual is here

https://partscatalog.deere.com/jdrc/...quipment/67826

Lithium battery from a Nissan Leaf arrives this week so battery conversion project will be beginning soon.
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post #3 of 8 Old 04-15-2019, 07:16 AM Thread Starter
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JohnN, thanks for posting the link to the manual. I had found it before from other sources online, too. It has a pretty detailed troubleshooting procedure, I just haven't had time to step through it, yet, as I've had other projects around the house I have needed to finish, first. I should get to it this Spring.

As for your Lithium battery project, please start a "build thread" and post your progress - this is something I am interested in eventually for the e-Gator!

Last edited by khnitz; 07-09-2019 at 07:25 AM.
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post #4 of 8 Old 07-05-2019, 06:21 AM Thread Starter
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I had a little time over the holiday to look into the e-Gator some more (other house projects have had priority). I did fix another issue - the B+ connection and charging connection to the positive battery terminal on the first/lead battery had corroded and cracked.. I repaired that and also made sure that the battery water levels were topped off (none of the cells were dry when I checked, either).

So, I have 2 odd behaviors now: the first is that the charger does not seem to turn off when connected, and then there is still the 3-clicks-but-no-go issue. I left the charger connected overnight and it said it was charging with about 9-10amps. It seemed about the same in the morning, maybe a little less. Across all eight batteries the packs measured 51.2V (and they had been at 48.7), so they did take some charge overnight.

Replacing the batteries is one thought I have, but I don't want to plunge into that until I'm sure there is nothing else wrong causing the 3-clicks behavior.
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post #5 of 8 Old 07-08-2019, 07:53 AM Thread Starter
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I stepped through the diagnostic procedures over the weekend, and on step 11 of the Forward & Throttle Circuit Diagnosis procedure, I found my error (this is from the FSM, page 6-48): with the throttle pressed (rear wheels in the air), I did not get a voltage reading when the relay clicked. So, this leads to a conclusion of an issue in the motor controller and to replace the motor controller. Fortunately, I had eGator1 sitting there with another controller, so I swapped it in and everything worked fine. I drove about 6 miles with it yesterday before bringing it in for a charge overnight.

Now to get the motor controller repaired...
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post #6 of 8 Old 07-08-2019, 08:38 AM
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Nice work

2012 Gator 825i (new engine at 1700 hours) Power Steering-Sport Exhaust- Deluxe Cab-Heater- Work Lights On Top Front And Rear- Hella HID Driving Lights-Warn ProVantage 4500 synthetic winch-Electric Dump- Gillmore Seat Covers
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post #7 of 8 Old 07-09-2019, 07:27 AM Thread Starter
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Quote:
Originally Posted by Bradhill View Post
Nice work
Thanks, Brad! In another update, the batteries took a full charge overnight, too - repairing the B+ lead to the first battery in the chain had a lot to do with that, I think.
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post #8 of 8 Old 07-09-2019, 07:30 AM
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Great news

2012 Gator 825i (new engine at 1700 hours) Power Steering-Sport Exhaust- Deluxe Cab-Heater- Work Lights On Top Front And Rear- Hella HID Driving Lights-Warn ProVantage 4500 synthetic winch-Electric Dump- Gillmore Seat Covers
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