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Tracy Martin TN 
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Joined: 11 Sep 2009
Location: Gallatin,TN
Points: 10934
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 Topic: AC 170 175 PTO gear cover?
Posted: 19 hours 51 minutes ago at 10:01pm |
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What was the reason for the change of PTO gear cover change? The tube to cover just ahead of it? Just wondering? Tracy
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No greater gift than healthy grandkids!
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DrAllis
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Joined: 12 Sep 2009
Points: 22808
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Posted: 18 hours 39 minutes ago at 11:13pm |
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Sometime after the change to the front hydraulic pump, the internal lube pump for the power director clutch was eliminated and the power steering return oil was used instead to lubricate it. This required a way to keep oil levels between the two compartments level, so this tube was added.
Edited by DrAllis - 9 hours 21 minutes ago at 8:31am
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Tracy Martin TN
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Joined: 11 Sep 2009
Location: Gallatin,TN
Points: 10934
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Posted: 8 hours 8 minutes ago at 9:44am |
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Dr Allis, thanks for the info. Learn something new every day! Tracy
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No greater gift than healthy grandkids!
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DrAllis
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Posted: 8 hours 4 minutes ago at 9:48am |
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It was a good design change. It was cheaper to build (elimination of one pump) and function wise just as good.
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Kevin in WA
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Joined: 08 Feb 2010
Location: Lynden, WA
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Posted: 7 hours 38 minutes ago at 10:14am |
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Eliminating power director lube pump might have made sense but putting the main pump up front was a huge step backward in my opinion, cost savings could not have been that much
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tbran
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Joined: 14 Sep 2009
Location: Paris Tn
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Posted: 1 hour 2 minutes ago at 4:50pm |
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The highly machined bevel gear with machined splines was expensive - then throw in the bearings and assembly time and it saved over $200 / tractor. PLUS going to hydrostatic steering vs the mechanical assist and elimination of those gears and assembly time resulted in about a $500 reduction in cost. approx $500 x 2500 units = about a mil and a quarter saved. Anyone who shaved a hundred bucks off a tractor was a hero !
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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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