If I remember correctly the left scv (#1) return flow is ported directly to the charge circuit which is where I have the power beyond block on our 4755. Our 1780 has the older style 2 hose motors without a seperate case drain. I run the vac motors off the 3rd scv and return to the pwr. beyond block on the 1st scv. I believe that #1 also has the adjustable orfice(?) for single acting cylinder operation. I always thought it was dumb that there was any extra attention needed when using single acting cylinders. IH tractors would run a single acting off any scv.
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Today's Featured Article - Oliver 550 Purchaser Checklist - by Greg Sheppard. Pound for pound the 550 is better than anything I've seen. It has great power for its size and can really hunker down and lug. Classified as a 3-bottom plow depending on soil conditions. I personally don't think it can be beat for a utility tractor in the 40 HP range. They are extremely thrifty on fuel, at least my DSL is. Most drive train parts are fairly easy to get. Sheet metal is probably the hardest thing to
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