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on dispensing wand. A trigger switch malfunction is not common, but
does occur from time to time. In this instance, the green LED light
will be illuminated indicating the circuit board is receiving power.
3. Material does not cure or cures "soft":
A. Always test cure of previously placed materials as you move
from section to section. Most M/M polyurea products, even in freezer
environments, should reach significant cure within 1 hour.
B. ALWAYS confirm that the proper pump pulleys or sprockets are being
used. Equal sized pulleys/sprockets for 1:1 ratio.
C. If uncured or soft cure is found, an off ratio mixture is most always
caused by a restriction or buildup inside of the mixing manifold.
Disconnect lines, inspect and clean mixing manifold. Prior to
reassembly, test material flow and ratio check directly from the pump
lines. After confirming proper ratio from the lines, connect
mixing manifold, attach static mixing element and dispense test
material to monitor for full cure.
D. If OFF ratio dispensing is found when testing directly from the pump
lines (without the manifold attached), check each hose line for
contamination or restriction. Ultimately, it will be VERY difficult to
visually find a restriction inside the hose line. Generally, hose lines
should be replaced before starting a project.
E. If hose lines are clear, buildup or restriction will likely be within one
or both pump units. Disassemble, clean thoroughly, and reassemble.
Attach hose lines and test flow ratio.
Troubleshooting
One Man Dual Component Polymer Pump
11
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