J-PRO-22 Alum Guide Rev 0021622 Page | 15
Troubleshooting and Maintenance:
Most problems occur with the connections, it can sometimes be hard to push the tubing onto
the cones, sometimes fittings are over-tightened, or people use Teflon tape and paste on
fittings that do not need it.
If the pump pumps in manual mode and makes a thumping sound, then it is working.
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Priming Problems
1.
If you cannot get it to prime, it is either because a fitting is too loose, too tight, or not
installed correctly.
2.
While the pump is running (usually, on Manual), observe if the fluid is coming up the
tube- if you see the water going up and down in the tubing, this indicates the foot valve
is not tight, or you installed the pump too high above the solution tank, or you mounted
the pump improperly.
3.
Sometimes, as mentioned earlier in the guide, it is because the four Allen head bolts on
the grey pump head have loosened, and need to be tightened, do not over-tighten.
4.
If the solution has filled the tubing, but it is not discharging, make sure the de-gas is
opened, and then close it until the point when it starts pumping.
5.
The tubing going from the outlet/discharge to injection check valve will twitch and
move at the same time the pump triggers, that is how you can confirm you are
pumping solution.
6.
If this does not work, remove the discharge-to-injection check valve tubing from the
outlet fitting, and see if it squirts out of the top- if it does, this indicates that the
problem is in the injection check valve, or that you are trying to pump against greater
than 100 psi.
