Magnum Venus Plastech PRESSURE LIMIT VALVE PLV-1000 - Manual (Page 24)

MAINTAINENCE AND REPAIR MANUAL
PLV-1000
MAGNUM VENUS PLASTECH REV 1.00
APRIL 2010 PAGE 24
CHAPTER 6-Installation
•
Before installing the PLV-1000, move the Poppet assembly up and down a few times by manually
pushing on the Poppet nut.
•
Making sure that a good thread sealer has been applied to the threads and replace the PLV-1000
back into the manifold or fitting that it was removed from.
•
Replace the Y or TEE fitting that was removed from the top.
•
Install the pneumatic lines back in the original position.
CHAPTER 7-System Start Up/ Troubleshooting
•
Turn up the operating pressure to approximately 10 psi.
•
Open recirculation valve and/or gun and remove any air from the system. While the air is purging
out check the PLV-1000 and make sure the Valve body is not venting the control signal.
•
Turn off recirculation valve and/or gun and turn up the operating pressure to correct operating
pressures.
•
Check for fluid leaks around PLV-1000
Problem Cause
Control signal is not reaching control valve or
switch.
Check incoming signal to PLV-1000.
PLV-1000 is venting control signal.
Check O-ring on Poppet Stem.
Broken Spring.
PLV-1000 is venting at too low pressure.
Replace spring.
Check and replace O-ring on Poppet Stem.
PLV-1000 will not vent control signal.
Check for correct assembly.
Check that Poppet Stem moves freely and is not
bent.
Fluid is leaking from PLV-1000.
Replace Seal Assemblies and Needle Guide.