Existing reviews of 850 psi Hydraulic Hand Pump, 450cc Oil Reservoir
Does the knob on the side set the max pressure?
I ordered this hydraulic hand pump and received it. Does the knob on the side set the max pressure? Or is it a relief valve? Do I need hydraulic fluid to use with press? Or is it filled?
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It is Release Valve. The hydraulic hand pump is filled and ready to use upon receipt.