Originally Posted by PAINTHEY
Sorry buddy, I already got that prize I had this issue also - But, in the meanwhile I got a good education. The spring is probably clipped too short. Adjust the locking collar AWAY from the cylinders so there is more tension on the spring. Then, watch the tank closely to make sure you dont go over 4500 psi. If it still doesnt go up to 4500, then contact TK about getting a replacement spring. If it goes over, re-adjust the collar by moving it a bit closer to the cylinders.
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