Tritech Merlin, Product Manual

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Merlin
0711-SOM-00001, Issue: 03 21 © Tritech International Ltd.
6. Troubleshooting
If the Merlin is experiencing poor performance check the following:
• Check that the clean water suction strainer is clear and that there are no blockages in the
hose.
• Check that the retro-flush valve is opening fully.
• Check that the jet valve is seating properly.
• Check that the suction hose reinforcement is intact and that there is no sign of the hose
collapsing under suction.
• Check that the discharge hose is not damaged or kinked.
• Remove the clean water suction hose from the pump and check that the face of the impeller
is not obstructed by material like rope fibre or shreds of plastic.
• Check that the hydraulic motor runs freely without excessive noise or vibration.
• Check that the hydraulic flow meets specification.
Note
During the operational life of the Merlin pump, wear on the Retro Valve core
can sometimes lead to the Retro Valve actuator to go into a geometric lock.
This means that the actuator will not fully retract when commanded to do so. In
order to remedy this a spacer should be fitted to the actuator, this prevents the
actuator for achieving full extension. See Section 5.3, “Fitting Spacer to Retro
Valve Actuator” for details on fitting the spacer and Appendix C,
Merlin Actuator
Spacer
for the specifications on the spacer.