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Hello and good day, I have an older blizzard snowplow straight blade. It has the truck mounted light bar. That alone should tell you the model I have because I do not know offhand. 2 days ago it started to slowly drift downward. Every half hour I'd have to Raise it back up only an inch or two then it would stay. Now it took a turn for the worse. Once I Raise the plow it starts to drop instantly and within 2 seconds it's on the ground. I checked the number 5 coil and it's magnetic when raising the plow but as soon as I let off the button it is not magnetic anymore. Don't know if that means anything or not. I pulled out all the pistons from behind the magnetic coils and checked for debris but there was none. The fluid is good and clean the pistons are good. No relays are blown. There is no leaks or drips of any kind anywhere. So I'm really wondering why this thing is bleeding off and dropping so fast. Another thing, the black round knurled dial I can turn it in and slow the speed of the drop when pressing the down button. But what I find interesting is that if I screw that knob in all the way it does not stop the snowplow from dropping, that alone is telling me the lifting cylinder may be the culprit. Let me know your thoughts.
