Posted by tpmx on December 06, 2012 at 06:32:58 from (24.144.152.76):
In Reply to: Drott Skidloader posted by Dr. Walt on December 05, 2012 at 21:39:28:
The lines are correct, they are prebent steel lines at the valve so its hard to get those reversed
There is one large spring loaded valve which i believe would be to set pressure on the entire system
It is in the top side of the valve on the pressure side
The only other one is the one that is in the lift spool itself
That on i am not sure of its function
Another has stated its possibly a regeneration plunger
Possibly a relief valve on the lift spool
It connects the lift port on the spool to another port if it were to open
I have that spool back at to look at it again
The plunger seat looks good plus the seat surface on the plunger seems ok
You can see a wide line where they have been making contact
I put the plunger back in the spool with its return spring and filled that cavity in the spool with a light oil to see if it leaked pass the plunger and it does not
This leads me to believe the plunger does seat
The next thought is if the spring is too weak with age
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Today's Featured Article - Hydraulic Basics - Part 2 - by Curtis Von Fange. In the last entry to this series we gave a brief overview of hydraulic system theory, its basic components and how it works. Now lets take a look at some general maintenance tips that will keep our system operating to its fullest potential. The two biggest enemies to a hydraulic system are dirt and water. Dirt can score the insides of cylinders, spool valves and pumps. Wate
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