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I have an older Hiniker 2852 straight blade. The previous owner did some work on it and modified / adjusted some stuff.

I’m restoring it as best I can and so far it’s coming along nicely.

I find the raise function is not as fast as I would like it to be and the plow will stall (stop raising) if I try to raise it while pushing snow.

it does have a flow restrictor on the fitting going to the lift cylinder. I presume this is to control the drop rate. It’s a fixed flow restrictor. Hopefully it only restricts on the down relief and not while raising.

anyhow, short of replacing the pump. $$$. I was thinkingthat I would try raising the pressure some.

I don’t have the model number of the pump. But it is a Fennel and that was bought out by SPX. SPX Stone pump?

30836

30837
30838
 

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Put a 5000 Lb pressure gauge on the lift hose and see what you get, hold the gauge away from you fore safety reasons. Should see about 1850-2000 my guess.
 
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