NHbotanut
Gold Member
Chuck, I mounted the relief valve with a U clamp. I will make permanent adjustments this summer. The hoses have the quick connect mounted up on the loader that I use for my grapple.
Snow Equipment Owning/Operating Trip springs on snow plow were too stiff
- Thread starter Chuck4310
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PILOON
Super Star Member
Most plow set ups use 2 single action cylinders to angle the blade.
Extending one retracts the other and the protection or crossover valve simply dumps the pressure from the impacted or overloaded side over to the other cylinder circuit thus saving fluid.
Only the extended corner of the plow is protected and not the inside (or curbside) which is the side generally that works hardest.
Being already in retracted mode there is no hydraulic fluid to dump.
If we were to plow snow away from the curbs to the center of the road and snag the curb with the extended corner then the crossover valve would 'dump' and blade would be protected.
Probably the main protection would be in cases where the operator catches manhole covers or protruding water valves type of situations
If I recall setting is 1500 PSI+/-
Naturally if pushing with the blade straight, both corners are 'crossover protected' therefore an impact would angle the blade and make your front end slide sidways and lessen the impact .(into a parked car? or the house?)
Extending one retracts the other and the protection or crossover valve simply dumps the pressure from the impacted or overloaded side over to the other cylinder circuit thus saving fluid.
Only the extended corner of the plow is protected and not the inside (or curbside) which is the side generally that works hardest.
Being already in retracted mode there is no hydraulic fluid to dump.
If we were to plow snow away from the curbs to the center of the road and snag the curb with the extended corner then the crossover valve would 'dump' and blade would be protected.
Probably the main protection would be in cases where the operator catches manhole covers or protruding water valves type of situations
If I recall setting is 1500 PSI+/-
Naturally if pushing with the blade straight, both corners are 'crossover protected' therefore an impact would angle the blade and make your front end slide sidways and lessen the impact .(into a parked car? or the house?)
OP
Chuck4310
Bronze Member
NHbot- I was referring to how your plow is connected to the loader arms. Have you considered a quick connect device?
PILOON- Thanks for your explanation of the relief valve. Makes sense. It gives me a better understanding.
The attached pic is of one of my bigger snow piles.
Since the areas I plow are all dirt/gravel roads, I set the skid shoes down enough to lift the blade up in the beginning of the winter. As time goes on and the roads ice up. I set the blade lower to scrape the new snow clean. It also makes it smoother with less obstructions to trip up the plow.
Chuck
PILOON- Thanks for your explanation of the relief valve. Makes sense. It gives me a better understanding.
The attached pic is of one of my bigger snow piles.
Since the areas I plow are all dirt/gravel roads, I set the skid shoes down enough to lift the blade up in the beginning of the winter. As time goes on and the roads ice up. I set the blade lower to scrape the new snow clean. It also makes it smoother with less obstructions to trip up the plow.
Chuck
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NHbotanut
Gold Member
I did look into changing to the quick connect system, but it extends the implements, and I loose weight lifting ability.
Changing the pins out really isn't that bad once you get used to it. I learned the biggest thing is to have the tractor and implement on solid level ground and it will go much quicker and smoothly.
Changing the pins out really isn't that bad once you get used to it. I learned the biggest thing is to have the tractor and implement on solid level ground and it will go much quicker and smoothly.
OP
Chuck4310
Bronze Member
kennyd
Advertiser
Yes, that is your crossover/cushion relief valve. What is in the other hole on the ends, and witch hose go to the cylinders-the ones on the end or the sides?
OP
Chuck4310
Bronze Member
kennyd- The side hoses ( those facing the loader arms ) go to the cylinders. There is an extra plug/blank in each side.
Front and back are from tractor.
Chuck
Front and back are from tractor.
Chuck
kennyd
Advertiser
There could possibly be an adjustment under those plugs-but I think you should leave it alone...
