RPH DUST COLLECTOR
Page 8
6.1.6
Remove all filter cartridges. A small amount of
force may be necessary to loosen the seal of the filter
gasket.
7.0 TROUBLESHOOTING
WARNING
6.1.7
When all filters are removed, clean the inside of
the collector to remove loose dust or hardened dust clods,
particularly from the cartridge sealing surface, and the
clean-air side (top side) of the cartridge sheet.
Shut down the collector immediately when dust
emits from the exhauster. Check to make sure
filters are correctly seated and not worn or
damaged. Prolonged breathing of abrasive dust
and blasting by-product dust could result in
serious lung disease or death. Short term
ingestion of toxic dust such as red lead, poses an
immediate danger to health. Identify all materials
that are to be removed by blasting, and obtain a
material safety data sheet for the blast media
.
6.1.8
Install new filter cartridges; center each cartridge,
install venturi tube, and secure with hold-down plate as
each cartridge is installed.
6.1.9
If necessary, replace the gasket on the access
door. Close the access door and secure.
6.1.10
Reset timer "off" time to 40 seconds, and set
pulse pressure to 70 psi.
7.1
Collector Not Pulsing
6.1.11
Turn the sequence panel off and season
cartridges per Section 6.2.
7.1.1
Check the manifold pressure gauge. If low,
check the compressed air supply; look for a closed
supply valve.
6.2 Seasoning
Cartridges
7.1.2
Check function of the pressure regulator located
on the pulse manifold inlet.
6.2.1
New cartridges must be seasoned. Cartridges are
seasoned by letting a dust cake develop on the filter media
before starting the pulse cycle.
7.1.3
Make sure the sequence switch located on the
panel cover is "on".
6.2.2
Operate the dust collector without pulsing
(sequence switch turned off) until the differential pressure
gauge reads the recommended changeover pressure of
4". At that point turn on the sequence switch to start the
pulsing cycle.
7.1.4
Check the fuse in the sequence control panel.
Replace as necessary.
7.1.5
Have a qualified electrician check for electrical
malfunction; check the supply voltage to the pulse
sequence board. Check outlet voltage to solenoids.
6.3 Tube
fittings
7.2
Some Cartridges Not Pulsing
6.3.1
If it becomes necessary to remove or replace the
tubing between quick-release valves and panel, be sure
the tubing does not bottom out in the fitting. If the tubing is
inserted too far into the fitting it will block the air passage,
and cause the pulse to malfunction.
7.2.1
Solenoid defective. Have a qualified electrician
check for electrical malfunction.
7.2.2
Check the diaphragm pulse valves.
7.2.3
Check for blockage in the tubing between the
diaphragm pulse valve and solenoid assembly.
7.3
Pulse Is A Steady Stream Of Air Instead Of A
Quick Pulse.
7.3.1
Check for a leak or split in the tubing between
the diaphragm pulse valve and solenoid assembly.