7020 powershift?
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=177582
Printed Date: 03 Sep 2025 at 2:17pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 7020 powershift?
Posted By: orangeman69
Subject: 7020 powershift?
Date Posted: 16 Jan 2021 at 10:28am
some days powershift is great, no slipping, next time it slips in every gear right down to stopping it, no lights on power steering is there. before we get into tearing it down what do you guys think? its had 2 torque limiters in its life, by the allis dealer. 9000 hours, still a awesome tractor.
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d17,d17nfpuller,d-17IVdiesel,d19gas,d19diesel nf,d21seriesII,180,190xtseries III,200,210,7020,7060,7080w/8.3cummins,8070fwa w/8.3cummins,8550 185 w/322 original hrs.
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Replies:
Posted By: tbran
Date Posted: 16 Jan 2021 at 11:22am
if the steering is still ok and the pto turns while slippage occurs, it is not the TL. Sticking valve on the PS control valve assy most likely - if it were the oil supply the lube light should come on.
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When told "it's not the money,it's the principle", remember, it's always the money..
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Posted By: Jack(Ky)
Date Posted: 20 Jan 2021 at 8:44pm
Mine throws some fits like that sometimes. I figured out it was mainly going up really steep hills so I started running the trans fluid a little overfull and fixed that. It has always slipped when the trans filter gets dirty. So back in the summer it started doing it again and it hadn't been long since the trans filter had been changed so I figured it was the generic fluid I was using messing the filter up. I drained fluid and put in new filter and filled with John Deere hyd fluid. The jury is still out on that because it don't get used much this time of year.
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'59 D14 '68 170 Diesel '81 7020 40 All Crop
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Posted By: MACK
Date Posted: 20 Jan 2021 at 8:58pm
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TL can work that way if it is getting oil on it . Tractor has to come to a complete stop before steering will give up. Same with PTO and dash lights. MACK
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Posted By: WD45Diesel57
Date Posted: 20 Jan 2021 at 9:24pm
double check to make sure your oil light bulb works mine was burnt out
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1-B's, 2-C, 2-CA's,2-WF, 1-WC,1-G, 3-WD's, 2-WD45, 1-RC, 1-D17 Diesel, 1-D14, 2-D15,1-D17 row crop,1-D19 gas and All Crop 40,60,66,72,90 and 100
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