Posted by pete 23 on February 20, 2012 at 10:15:45 from (74.32.238.142):
In Reply to: 1566 PTO adjustment? posted by biggerred on February 19, 2012 at 19:33:54:
The pressure on that model is controlled by a relief valve mounted on the pto pump. In other words inside the rear housing and can be accessed through the third arm plate. However, it is staked and normally does not need adjustment. They do get full of crap though and there is a screen on them that plugs and tears up. Another thing that happens very often is that someone thinks the adjustment is on that large nut on the top side of pto where the spool goes in. That adjustment does have an effect, infact it can be screwed to the point that you have no pressure relief and it push's things apart inside pto. Have seen that . That nut is to adjust the PARTIAL ENGAGEMENT pressure that so many seem to overlook. You are supposed to be able to feel that added resistance when engaging pto lever so that you don't start out with a bang. You do need a gauge with the special fitting to adjust that and check pressure. Partial engagement pressure is about 45 to 55 psi. and full engagement is 235 psi or there abouts.
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