L3 help needed
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=51012
Printed Date: 23 Aug 2025 at 4:34pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: L3 help needed
Posted By: clint
Subject: L3 help needed
Date Posted: 23 May 2012 at 11:36am
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hello everybody- just got my "new" 1984 L3 here. the hydro handle is very very stiff- put pen. oil on both ends and worked it a bunch prior to driving home. this thing has sat in a shed for 3 years.
driving home the thing was not fast on the road like my m2. either the engine wasnt to speed (nothing up top works- might be fuses or mice) or the hydro is weak?
how do you check the hydro? i can put a handheld tach on the engine- 2500 on the 426 right???
honw much travel should the hydro cable have?
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Our farms stuff: agco gt55, AA 8775, 8765, 6080, 185, 180, 175, 170, d15, d14, d14, wd, wd, wd, g, F3, L3, R62
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Replies:
Posted By: Lonn
Date Posted: 23 May 2012 at 11:55am
I think 2550 is the right RPM with the machine engaged.
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Wink
I am a Russian Bot
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Posted By: clint
Date Posted: 23 May 2012 at 12:23pm
i will change the filters and put in good fuel and see if that helps- i am worried about the hydro itself- how do you check that thing?
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Our farms stuff: agco gt55, AA 8775, 8765, 6080, 185, 180, 175, 170, d15, d14, d14, wd, wd, wd, g, F3, L3, R62
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Posted By: Mike56073
Date Posted: 23 May 2012 at 12:25pm
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Does the hydro use a cable from the handle? Just wondering if it's so corroded inside it's sheath that's its stiff and possibly worked it's way out of adjustment????
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Posted By: Russ-neia
Date Posted: 23 May 2012 at 12:54pm
If you didn't have trouble loosing speed going up hills on the road, the hydro is probably fine. I had to change the hydro cable on my 1984 L3 last fall because the ends had gotten loose on the internal cable and I didn't have the full range of travel. The handle in the cab has a hole in the mounting for a grease fitting inside the console. That, plus the tension applied by the jam nuts are what give the handle more/less resistance.
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The innovators offer what others will imitate.
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Posted By: clint
Date Posted: 23 May 2012 at 1:12pm
i definatively lost speed going up the hills
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Our farms stuff: agco gt55, AA 8775, 8765, 6080, 185, 180, 175, 170, d15, d14, d14, wd, wd, wd, g, F3, L3, R62
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Posted By: Russ-neia
Date Posted: 23 May 2012 at 1:33pm
If loosing speed, check tension on transmission input drive idler. The bolt has a tendency to back out of the spring allowing the belt to slip.
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The innovators offer what others will imitate.
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Posted By: clint
Date Posted: 23 May 2012 at 3:01pm
will check engine rpm and the tension. if tight- then what? is there a "field test"?
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Our farms stuff: agco gt55, AA 8775, 8765, 6080, 185, 180, 175, 170, d15, d14, d14, wd, wd, wd, g, F3, L3, R62
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Posted By: clint
Date Posted: 24 May 2012 at 8:54am
bump
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Our farms stuff: agco gt55, AA 8775, 8765, 6080, 185, 180, 175, 170, d15, d14, d14, wd, wd, wd, g, F3, L3, R62
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Posted By: Adam Stratton
Date Posted: 30 May 2012 at 7:28am
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Clint- Just wondering if you might have gotten any PMs or anything about this. You can also get an idea about slippage by how the grooves feel on the front pulley. I have also heard that there is a way that you can "turn up the pressure" on the hydro without doing much work, but I have never really understood how to turn it up, or how to check it to know if that is the problem or not. We have one on an L2 that is acting up as well. I have one on our parts machine, but dont want to swap if I dont have to, and I would like to know if the other one was actually better before I did the work to switch!
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Posted By: clint
Date Posted: 30 May 2012 at 8:48am
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Hi Adam,
the belt was loose but not bad i thought- i dont think that is the cause. i havent had time to do anything yet. i need to go through the machine in the comeing week or two- i want to run wheat with it.
i ordered new belts for the hydro and to the main from the engine- will put that on and go from there- my hyd oil level in the side tank was very very low- could this effect the tranny?
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Our farms stuff: agco gt55, AA 8775, 8765, 6080, 185, 180, 175, 170, d15, d14, d14, wd, wd, wd, g, F3, L3, R62
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Posted By: ryan(IN)
Date Posted: 30 May 2012 at 9:31am
yes if the hydraulic oil is low that will effect the hydro.
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ryan
1984 8070 FWA,1979 7060,1975 7040,1971 190,1960 D-17D,1957 D-14, 196? D-19G, 1975 5040,1971? 160,1994 R62
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Posted By: clint
Date Posted: 30 May 2012 at 12:51pm
ryan- on my m2 the hydro oil is contained there- does the l3 have some sort of "charge" system on it from the back tank and pump?
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Our farms stuff: agco gt55, AA 8775, 8765, 6080, 185, 180, 175, 170, d15, d14, d14, wd, wd, wd, g, F3, L3, R62
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