lpakiz
Gold Member
- Joined
- Jul 25, 2017
- Messages
- 380
- Location
- Greenwood, WI
- Tractor
- MF1754 HST, Cab, 6 foot Front Mount Snowblower
Yeah, you need to clean up all the rust and junk on those parts. Look inside the cap you're holding in picture 144201. Is is pitted or rough? It's possible you'll need a new cap, if that one can't be refurbished.
Look into the bottom of that cap. Is there something in there preventing the spool from entering and traveiling all the way to the bottom?
There is no reason to look further, as all the parts to give you float are there, on the end of the spool or in that cap.
And actually, I don't see any sign of detent balls or other mechanism to hold the valve in float. What I see is just the spring that returns the spool to "hold" (centered) which is described as "spring centered to neutral" in catalogs such as Surplus Center, in their hydraulic valve section. They describe other valves as "with detent on forward stroke and spring centered on the retract stroke" or "detent in both positions"
Is it possible that this spool simply does not have the "float" function?
If it never was designed to have float, it's also possible that the parts to convert it to float might be available in the parts book. Those parts might consist of a different cap and a different end on your spool.
If you're adventurous, you might leave that end cap off, start the tractor and raise the loader up, then lower it, note the position of the spool, then see if the spool will move further yet and would it still allow the loader to continue moving down. That "might" indicate if the valve body and spool are compatible with a "float" function.
Looking closer at picture 213, I see another short section bolted to the end of the valve body, with 2 Allen head bolts. See if you can find float with the cap off, in picture 201. Then explore that next section in picture 213. Carefully remove it, that could be the float/detent mechanism. You could loosen it, then move the control handle and see what happens. Or replace the 2 Allen head cap screws with longer ones, one at a time, and see what effect that has on spool movement.
Look into the bottom of that cap. Is there something in there preventing the spool from entering and traveiling all the way to the bottom?
There is no reason to look further, as all the parts to give you float are there, on the end of the spool or in that cap.
And actually, I don't see any sign of detent balls or other mechanism to hold the valve in float. What I see is just the spring that returns the spool to "hold" (centered) which is described as "spring centered to neutral" in catalogs such as Surplus Center, in their hydraulic valve section. They describe other valves as "with detent on forward stroke and spring centered on the retract stroke" or "detent in both positions"
Is it possible that this spool simply does not have the "float" function?
If it never was designed to have float, it's also possible that the parts to convert it to float might be available in the parts book. Those parts might consist of a different cap and a different end on your spool.
If you're adventurous, you might leave that end cap off, start the tractor and raise the loader up, then lower it, note the position of the spool, then see if the spool will move further yet and would it still allow the loader to continue moving down. That "might" indicate if the valve body and spool are compatible with a "float" function.
Looking closer at picture 213, I see another short section bolted to the end of the valve body, with 2 Allen head bolts. See if you can find float with the cap off, in picture 201. Then explore that next section in picture 213. Carefully remove it, that could be the float/detent mechanism. You could loosen it, then move the control handle and see what happens. Or replace the 2 Allen head cap screws with longer ones, one at a time, and see what effect that has on spool movement.
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