PULSAR
®
PLUS 55-S SUCTION BLAST CABINET
Page 36
© 2021 CLEMCO INDUSTRIES CORP.
www.clemcoindustries.com
Manual No. 30423
8.15
Dust or media leaking from cabinet
Shut down the cabinet and dust collector
immediately if dust discharges from the cabinet
or collector. Prolonged breathing of abrasive
dust and blasting byproduct dust can result in
serious lung disease or death. Short-term
ingestion of toxic dust, such as lead, poses an
immediate danger to health. Identify all
materials to be removed by blasting and obtain
a safety data sheet (SDS) for the blast media
.
8.15.1
Refer to Section 8.13.
8.16
Dust leaking from dust collector
8.16.1
Cartridge not seasoned. Season cartridge, per
Section 7.13.
8.16.2
Damaged or loose cartridge. Inspect filter
cartridge and tighten the tensioning knob or replace the
cartridge, as needed.
8.16.3
Faulty seal on the dust-collector door. Inspect
seal and replace if damaged.
8.17
Dust collector does not pulse
NOTE: Unless noted otherwise, tests are performed with
compressed air supplied to the pulse reservoir and
power to the digital pulse timer.
8.17.1
Make sure the pulse reservoir is pressurized.
Open the drain on the pulse reservoir. If air flows from
the drain, proceed to Section 8.17.2. If air does not flow
through the drain, proceed with Section 8.17.3.
8.17.2
Make sure the timer’s LED display is lit,
indicating power is reaching the timer.
If the display is not lit, do the following:
1. Make sure the power-supply switch (green
pushbutton) is pressed ON (exhauster running).
NOTE: The green light is lit as soon as power is
applied to the cabinet, but the timer does not
receive power unless the switch is pressed.
2. Make sure the power cord is connected and that
power is supplied to the outlet.
3. If the display is not lit after checking the above,
have the electrical system checked by a
qualified electrician.
Observe the LED display. If the display counts down
OFF time to 0, the diaphragm pulse valve is
malfunctioning. Inspect the pulse valve’s diaphragm
and O-ring for damage.
8.17.3
Check the pulse-pressure gauge:
If the reading is low, adjust pulse pressure, per
Section 5.8. If pressure does not increase after
adjusting the regulator, check the compressed-air
supply; look for a closed supply valve.
If certain the air supply is open and at full pressure,
and pressure does not increase in the pulse
reservoir, the pressure regulator is faulty. Replace
the pressure regulator.
8.18
Dust-collector pulse is steady stream of air
instead of quick pulse
8.18.1
The pulse-valve diaphragm may be damaged.
Continuous air flow into the dust collector typically
means the diaphragm is leaking. Remove the four cap
screws on the diaphragm pulse valve and inspect the
diaphragm and O-ring. If damaged, replace them with a
service kit listed in Section 10.11.
8.18.2
The pulse timer or valve may be stuck in the
open position. Remove the muffler (Figure 58, Item 11)
and listen for a stream of air escaping from the timer
valve. If air continually bleeds from the valve, replace the
timer assembly.
8.19
Dust-collector differential-pressure gauge is
consistently high
8.19.1
Pulse valve may not be pulsing properly. Refer
to Sections 8.17.
8.19.2
The in-line dust filter may be blocked. Clean or
replace per Section 7.14.
8.19.3
Snubber fittings blocked with dust. Clean or
replace, per Section 7.15.
8.19.4
The sequence OFF time may need adjusting.
Refer to Section 5.9.2.
8.19.5
Filter cartridge may need to be replaced. Refer
to Sections 5.8 and 7.12.
