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Re: Jubilee 3 pt lifting problem
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open the 'flow control' knob on the vane pump all the way
check the o-rings on the tubes front and rear again
check the tubes carefully for any pinholes, rust thru
bleed air by loosening the plug on the accessory plate under the seat
take out the test port plug (by the right floorboard), and plumb a
hose from there to the fill port. start the tractor and check flow and look for air bubbles
sometimes, the vane pumps are just worn out.
replacing it with a piston pump is then the way to go.
direct swap, but you will need
piston pump tubes for the NAA, which are getting very tough to find.
(your existing vane pump tubes won't work)
also, you will probably have to modify the oil pressure line
fitting on the side of the block, as the piston pump will hit
it when installing
This post was edited by NoNewParts at 03:29:54 12/27/12.
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