So I had been thinking it has been a few days since the "beloved" 24V system has been brought up here, and then I get a call from a customer with a 24V charging problem. I looked back in the archives and would like to obtain a copy of service bulletin 268 if possible I know Pete in MD was doing this but have not seen any posts from him of late. Thanks for any help. E-mail is open
- Thread starter Tech 7
- Start date
So I had been thinking it has been a few days since the "beloved" 24V system has been brought up here, and then I get a call from a customer with a 24V charging problem. I looked back in the archives and would like to obtain a copy of service bulletin 268 if possible I know Pete in MD was doing this but have not seen any posts from him of late. Thanks for any help. E-mail is open
I got mine from my late friend Duane Larson. You can purchase his CD set of ALL Deere Service Bulletins there. SB 268 has a good troubleshooting section on the 24 volt system, best out there, complete with diagrams and specs and data.
John T
Duane Larsons Service Bulletin CD
John T
Duane Larsons Service Bulletin CD
Tx Jim
Well-known Member
- Location
- Coyote Flats, Texas
John
I've forgotten is JD 24 volt system + or - ground?????? :twisted:
If tractor is a using tractor and not a collector(trailer queen) I vote to change the 24 to 12 v system and be done.
Jim
Thanks for the replies, guys. Yes if it were mine it would be changed over to 12V, but the owner wants to leave it original and, the customer is always right, right?
John T, I take a lot of faith in your endorsement,I hope to someday sit in on one of your talks. Entertaining I am sure.
John T, I take a lot of faith in your endorsement,I hope to someday sit in on one of your talks. Entertaining I am sure.
Gee whiz guys! I don't know what all the fuss is about with 24 volts. My 4010 and 5010 with 24 volt systems work just fine. Put a battery charger on both sets of 12 volt batteries alternately and keep them at full charge. The same can be said for 12 volts systems. You want batteries at full charge, - 12.6- 12.8 volts. Anything under that is less than full charge. Matched batteries are a must. Any battery not holding 12.6V-12.8V at rest for a few weeks is a dud or there is a drain. Any battery (or bank of batteries in 12 or 24 volts systems) under 12.00 volts is "dead" and the battery(s) if left that way for long will fail. On 24 volt systems check charging with the engine running. You want to see 25-26, maybe 27 volts with a multimeter across the batteries. Twelve volt systems must indicate 13-14 volts. Battery manufacturers will never tell you but constantly fully charged batteries last very much longer. We trickle charge all our batteries off season and our cost for batteries has been greatly reduced.
Pete in MD
Well-known Member
- Location
- Central Maryland
Tech 7,
I have SB 268 as an Adobe Acrobat file on my computer. The only way I can send it to you is as an attachment to a regular email.
Send me an email with your email address and I'll get it to you. My email is open in Classic.
Pete
I have SB 268 as an Adobe Acrobat file on my computer. The only way I can send it to you is as an attachment to a regular email.
Send me an email with your email address and I'll get it to you. My email is open in Classic.
Pete
Tx Jim
Well-known Member
- Location
- Coyote Flats, Texas
JD Dave
Irregardless to you liking JD's 24 volt system a 12 volt system is much more trouble free and simpler to diagnose if a problem happens to arise.
Jim
Thanks Tech, since I started hanging in Florida until April I have about quit giving Seminars and Workshops and writing electrical articles for John Deere type magazines since Gathering of the Green is in March and Id hate to drive all the way there when its so colddddddddd lol. I used to give them in summer months at Two Cylinder Expos but we sometimes take the RV West in summer so that had to stop also. I'm not much help anymore but truly enjoyed it when I was in that business.
John T
John T
"I've forgotten is JD 24 volt system + or - ground"
GEEEEEEEEEE Whiz Jim, if you recall a certain retired History Professor told us it was + Ground (even though all the rest of the world knows John Deere designed it as floating, see SB 268) you don't dare dispute that now do you???????? Hmmmmmmm lol lol lol
Take care Jim,
John T
GEEEEEEEEEE Whiz Jim, if you recall a certain retired History Professor told us it was + Ground (even though all the rest of the world knows John Deere designed it as floating, see SB 268) you don't dare dispute that now do you???????? Hmmmmmmm lol lol lol
Take care Jim,
John T
Tx Jim,
I didn't imply that I "like" 24 volts, - just that I understand how it works and can make it work. You have to admit that a large part of the problem with 24 volts is mismatched batteries especially those applications using 4-6 volts and poor charging. Seems the most timid bunch with 24 volts is scared to death of electricity so they're twice as terrified of 24 volts than 12 volts.
I didn't imply that I "like" 24 volts, - just that I understand how it works and can make it work. You have to admit that a large part of the problem with 24 volts is mismatched batteries especially those applications using 4-6 volts and poor charging. Seems the most timid bunch with 24 volts is scared to death of electricity so they're twice as terrified of 24 volts than 12 volts.
Tx Jim
Well-known Member
- Location
- Coyote Flats, Texas
JD Dave
I'll admit 24 v is easier to get along with if one understands it & knows how to diagnose it's problems but I still think one will have less problems with a 12 v system than 24 v.. I still have a dislike for 24 v system from my JD dealer service manager days.
workstinks
Member
Pete, could you send me a copy of 268?
Thanks
Ron
Pete in MD
Well-known Member
- Location
- Central Maryland
Ron,
Yes I can do that. Just do what I told Tech 7 to do in my earlier post.
Pete
Yes I can do that. Just do what I told Tech 7 to do in my earlier post.
Pete
workstinks
Member
Pete
my email is [email protected]
my email is [email protected]
Pete in MD
Well-known Member
- Location
- Central Maryland
Check your email.
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