Re: Jubilee 3 pt lifting problem

Posted by NoNewParts on December 27, 2012 at 03:25:48 from (67.240.145.25):

In Reply to: Jubilee 3 pt lifting problem posted by Jay in WA on December 26, 2012 at 11:33:40:

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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