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orangeman69 
Bronze Level
Joined: 28 Jan 2013
Location: Eden,Wi.
Points: 155
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 Topic: 7020 powershift?
Posted: 16 Jan 2021 at 10:28am |
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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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tbran
Orange Level
Joined: 14 Sep 2009
Location: Paris Tn
Points: 3526
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Posted: 16 Jan 2021 at 11:22am |
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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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Jack(Ky)
Orange Level
Joined: 12 Sep 2009
Location: Ky
Points: 1153
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Posted: 20 Jan 2021 at 8:44pm |
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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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MACK
Orange Level
Joined: 17 Nov 2009
Points: 7664
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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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WD45Diesel57
Orange Level
Joined: 20 Jul 2010
Location: Varna, Ont. Can
Points: 646
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Posted: 20 Jan 2021 at 9:24pm |
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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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