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1566 PTO adjustment?

B

biggerred

Member
The pto works great as long as I hold the lever ingauged, but ONLY as long as I hold it. I read the book, but I dont have any gauges to do pressure checks and so forth. Any adjustment advice?
 
It has to be done by adjusting the pressure to the clutch. Th fitting can be bought for about $25.00. Your local dealer might just loan you theirs to do the job.
 
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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