MVP DMX-3000, Manual

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Duramax Gun Operations Manual
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36. Place an O-ring on the flush seal body.
37. Insert the flush seal body into the end of the flush valve body and screw it onto the button.
38. Place the flush valve body into the flush valve neck.
39. Install the split seal onto the flush valve body.
Reconnect Component Assemblies
40. Attach the gun head assembly to the gun handle with the cap screw.
41. Slide the trigger into place against the needles and line up the holes with the handle.
42. Push the trigger stud through both the trigger and gun handle and retain with the screw.
Adjusting Needles
Gun Adjustment and Start Up
Note Make sure the trigger and trigger bar are not worn, loose, or damaged before
adjusting the gun or needle guides.
1. Adjust the resin needle guide and jam nut so that they will open just before the catalyst
needle (never catalyst first).
Note How much you open the resin needle before you open the catalyst needle will
depend on the resin viscosity and may have to be changed as the resin
temperature changes.
2. Test the gun by putting 100 psi (7 bar) of air to the catalyst and resin fittings and submerging
the gun in water.
Troubleshooting
Catalyst Problems
Symptom Possible Cause Remedy
Catalyst leaking around
needle (inside packing
nut)
Packing nut loose Lightly tighten packing nut
Packing seal worn or damaged Replace packing seal
Excessive pressure in catalyst
system Relieve catalyst pressure from system
Catalyst needle bent or damaged
Replace catalyst needle
Catalyst leaking around
needle housing O-ring on needle housing worn or
damaged Replace O-ring
Catalyst leaking form the
mix housing/front of gun
Catalyst piston needle worn or
damaged Replace needle
Catalyst seat worn or damaged Replace catalyst seat