F2 charging and chopper knife ??
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=139779
Printed Date: 28 Sep 2025 at 10:37pm
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Topic: F2 charging and chopper knife ??
Posted By: FREEDGUY
Subject: F2 charging and chopper knife ??
Date Posted: 25 Jun 2017 at 5:39pm
| Dad has owned this F2 for 9 years and has always had a charging issue. After 5-6 hours of operation,the battery gauge falls from the upper green to finally the upper red of lower end of gauge. Alternator was rebuilt last fall by a reputable shop and helped for a day. I personally have blown the alternator out with air(was amazed how much crap came out) yet the declining voltage persists. Pretty sure gauge is accurate because after dark,with lights on(work and headlights both)gauge drops faster and the lights get dimmer. On a side note,does any one have experience with Shoup's chopper knives? Ours have already been turned over and are very rounded on the ends. Thanks |
Replies:
Posted By: SteveM C/IL
Date Posted: 25 Jun 2017 at 10:03pm
| I'd bet wire connection issues on the charging. My F2 had some wires that wire no longer making good contact in the factory crimped ends. Too much resistance,getting hot and killing fuses.Think I got my knives at AGCO.Shoup's are probably just as good...these days. |
Posted By: MACK
Date Posted: 25 Jun 2017 at 10:31pm
| Check all connections from alternator to solenoid on console door. If all is good, replace solenoid on console door. MACK |
Posted By: FREEDGUY
Date Posted: 26 Jun 2017 at 7:03am
| Thanks, I have noticed that solenoid gets kinda warm, can feel the heat on outside of door while turning the latches |
Posted By: DougS
Date Posted: 26 Jun 2017 at 9:18am
| You may have missed the solenoid issue a few months ago. When you replace the solenoid be sure it is rated for continuous duty. It will cost more, but don't be tempted to go cheap with this part. |
Posted By: FREEDGUY
Date Posted: 26 Jun 2017 at 6:41pm
| Thanks for all the input. I priced a OEM at local dealership that has it in stock,OUCH!! |
Posted By: DougS
Date Posted: 26 Jun 2017 at 7:00pm
Yup. You can try an auto parts store and ask for a 50 or 80 AMP continuous duty relay and see how they price it. Take the old one in so you can get one with the same frame. A true continuous duty relay will not get hot after hours of use. This issue came up in here last fall. Someone along the line there bought a cheaper non-continuous duty part and the problem persisted. |
FREEDGUY wrote:Posted By: FREEDGUY
Date Posted: 26 Jun 2017 at 7:32pm
| Thanks for the input Doug.Probably best to pay "some" now than a"bunch"later |
Posted By: MACK
Date Posted: 26 Jun 2017 at 9:34pm
| If I remember right, mcMastercar has some that is rated higher than AGCO. AGCO used one just big enough to get by. MACK |