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Discussion Starter · #1 ·
I have a Western Pro-Plow. Lately when angled and plowing with force against the leading edge, the blade will swing back towards straight, meaning the angle cylinder is bleeding oil back into the manifold. The right side a little worse than the left but I have a wing on the right which may affect that. Also at times when I angle the blade it sometimes won't stay in position and swings back part way on it's own. Not always and usually with repeated trys it will stay in place. I'm assuming it's a leaking relief valve in the manifold but I don't which one to target. Your help would be appreciated. I'm attaching a parts breakdown of the manifold portion so if you can recommend which one to check that'll help. Can I just order a o-ring kit or do I need to replace valves?

Thanks
 

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