Magnum Venus Plastech TESTING & ADJUSTING YOUR MVP PUMPING SYSTEM - Manual (Page 28)

Testing & Adjusting Manual
Rev. 01/2013 Page | 28
Down stroke Upstroke Down stroke Upstroke Down stroke
T B T B T B
Result 4:
Material delivered on the catalyst pump down-stroke (from the top of the stroke to the
bottom) is not curing or slow cure (see figure above).
Indicates: No catalyst is being delivered on the down-stroke.
Probable Cause: Worn or damaged inlet body.
Worn or damaged inlet body ball.
Solution: Replace worn and damaged parts, see Service and Repair Manual.
Start Spray Test Direction of gun travel End Spray Test
Result 5:
Material is delivered with streaks running the length of the test spray. Some strips cure
normally, some not at all, other cure at faster or slower rates (see figure above). This is
not a pumping problem, it is a mixing problem.
Indicates: a mixing problem and the fan is delivering streams of poorly catalyzed
resin and/or pure catalyst.
Probable Cause: the Turbulent Mixer is worn, clogged or damaged in some
way. A scratched or damaged Mix Chamber can also cause this problem.
Solution: shut down the system and inspect the Turbulent Mixer and Mix
Chamber. Repair or replace as needed.
Normal cure
Slow / No Cure