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Problems During Dispensing Polyurea Joint Filler:
1. Material flowing slowly:
A. May occur when material temperature is cool and in the case of
cooler/freezer environments. Preheat material and/or store outside
of cooler/freezer area. For freezer installations, tank heaters should
be used to maintain a "pumpable" viscosity.
B. May occur if static mixing manifold has buildup or restriction in the
outlet orifice. Remove pump lines from the manifold, remove fittings,
plastic washer, check ball, and spring and ensure no buildup or
restriction is present. Inspect outlet orifice for restriction and drill out
if buildup is present.
C. May occur if mixed material begins to "gel" inside of the static mixing
element (tip). This typically will occur when jumping from joint to
joint allowing mixed product to set inside the plastic mixer without
purging. Purging the static mixing element should be done
approximately every 45 seconds with most M/M products.
2. Material STOPS flowing:
A. Check main power supply to ensure voltage is entering the speed
control unit. Inside the control box cover located on the face of the
circuit board a GREEN LED light should be illuminated when proper
voltage is present. If indicator light is off (switch is on), check main
power supply cord to ensure power is being supplied to the control
box. Correct if necessary. If control box is receiving power and the
light on the front is OFF, check 12A ceramic fuse behind the control
box cover (left side of electrical panel). Replace if necessary.
B. If control box is receiving power and the LED light on the circuit board
is ON, check 8A MDL (slow burn) fuse behind the control box cover
(right side of electrical panel). DISCONNECT POWER before removing
or testing fuses! Replace if necessary. Burnt 8A MDL fuses will be
the primary cause for NO FLOW situations and will typically occur
when the motor is being placed under excess strain. Most common to
occur when dispensing in cold environments or freezer/cooler
installations.
C. If control box fuses are not "blown", check trigger switch mechanism
Troubleshooting
One Man Dual Component Polymer Pump
10
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