Hi. I have a small 2700psi Blackmax (Subaru). While moving it, One of the wheels broke off and I didn't notice I got dirt in the inlet. I hooked up the hose and it turned on fine but no pressure. I undid the hose and saw gravel in it.
Long story short, after disassembling the whole bottom pump (several times) and cleaning all the cavities from debris (As best I could). I put it back together and still no pressure! I wonder if I got dirt behind the check valve ball (where unloader sits). Hate to pay $187 for a new pump but, at a loss for a solution.
Additional Dribble:
1. I put new gear oil in the piston chamber.
2. I removed and put back the unloader looking for debris.
3. I can see the ball bearing on the check valve but doesn't look like I can clean in there or get to it.
4. I also took apart all hoses and sprayer, cleaned and re-attached.
5. After removing the loader assembly, there doesn't seem to be a way to get to the check valve cavity easily.
Long story short, after disassembling the whole bottom pump (several times) and cleaning all the cavities from debris (As best I could). I put it back together and still no pressure! I wonder if I got dirt behind the check valve ball (where unloader sits). Hate to pay $187 for a new pump but, at a loss for a solution.
Additional Dribble:
1. I put new gear oil in the piston chamber.
2. I removed and put back the unloader looking for debris.
3. I can see the ball bearing on the check valve but doesn't look like I can clean in there or get to it.
4. I also took apart all hoses and sprayer, cleaned and re-attached.
5. After removing the loader assembly, there doesn't seem to be a way to get to the check valve cavity easily.
But really, thank you for the reply and I'll look into the predator!