RollTideTractor
New member
Hi folks:
I have a 2005 5105 with Mid Mount SCV's for FEL and a single Rear SCV.
I dont use the Rear SCV much (occasionally with BB scarifiers), so when I recently tried to hook up the BB hose, the SCV only moved one way (down) and thenone of the hoses would pop out of the QD at the rear.
I took the SCV off and disassembled it per the TM. It was full of gunk (mud like oily substance) which was limiting the travel of the spool. I was really amazed at the amount of gunk in here. I bought the tractor used 3 years ago so havent owned it since new, but the gunk just kept coming out (I had to use gasoline to clean out the passages) and needless to say, I have already done a full flush of Hydraulic Fluid (all HyGard).
When I took the SCV off the there is a nut screwed onto a "stop" (as seen in the TM drawing and in picture below) that simply broke off (the "stop" is still stuck in the cap). The stop was obviously corroded as the cap was full of the gunk.
I have cleaned everything and out and have the spool etc back to full movement. I am ordering new O-rings (where available) and packings. Next stop is to check the QD's to see how bad they are given this SCV being upstream.
Two questions:
1) Anyone know what this stop does? Does it need to be adjustable or can I leave well enough alone? It looks like it may have been adjustable to limit the travel of the spool to perhaps fine tune the detent/float? I note there is not part number for it (looks like it is part of the SCV Assembly, which is lots of $$$) and I dont want to try and drill it out. See outline in red on picture and schematic
2) Anyone know if there is a comparable O-Ring to the one outline in blue on the schematic? It is not sold separately (again looks like part of the SCV Assembly) and the one in my SCV was disintegrated.
Any other tips from anyone who has done this before?
I have a 2005 5105 with Mid Mount SCV's for FEL and a single Rear SCV.
I dont use the Rear SCV much (occasionally with BB scarifiers), so when I recently tried to hook up the BB hose, the SCV only moved one way (down) and thenone of the hoses would pop out of the QD at the rear.
I took the SCV off and disassembled it per the TM. It was full of gunk (mud like oily substance) which was limiting the travel of the spool. I was really amazed at the amount of gunk in here. I bought the tractor used 3 years ago so havent owned it since new, but the gunk just kept coming out (I had to use gasoline to clean out the passages) and needless to say, I have already done a full flush of Hydraulic Fluid (all HyGard).
When I took the SCV off the there is a nut screwed onto a "stop" (as seen in the TM drawing and in picture below) that simply broke off (the "stop" is still stuck in the cap). The stop was obviously corroded as the cap was full of the gunk.
I have cleaned everything and out and have the spool etc back to full movement. I am ordering new O-rings (where available) and packings. Next stop is to check the QD's to see how bad they are given this SCV being upstream.
Two questions:
1) Anyone know what this stop does? Does it need to be adjustable or can I leave well enough alone? It looks like it may have been adjustable to limit the travel of the spool to perhaps fine tune the detent/float? I note there is not part number for it (looks like it is part of the SCV Assembly, which is lots of $$$) and I dont want to try and drill it out. See outline in red on picture and schematic
2) Anyone know if there is a comparable O-Ring to the one outline in blue on the schematic? It is not sold separately (again looks like part of the SCV Assembly) and the one in my SCV was disintegrated.
Any other tips from anyone who has done this before?
