I have the reproduction version of the shop manual and it has that saying in it.
The oil pressure on my 881 is low like yours, about 12 psi at idle, 30 at pto speed, I'm using Delo 400 15w40.
I'm thinking about dropping the pan and changing oil pumps, I'm pretty sure Ford upgraded the oil pump later on, dads old 850 would make 60 psi cold, run 40 psi hot and 20 psi at idle, oil pump wasn't the original.
My 881 is a 62 model, last year of the 801 series, in 63 they painted them blue and called them 4000
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Today's Featured Article - The Ferguson System Principal An implement cutting through the soil at a certain depth say eight inches requires a certain force or draft to pull it. Obviously that draft will increase if the implement runs deeper than eight inches, and decrease if it runs shallower. Why not use that draft fact to control the depth of work automatically? The draft forces are
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