
PULSAR
®
III-P/III-PE and VI-P/VI-PE PRESSURE CABINETS
Page 30
© 2019 CLEMCO INDUSTRIES CORP.
www.clemcoindustries.com
Manual No. 21527, Rev. I, 02/19
8.1.6
Inlet damper closed too far, restricting air
movement into the cabinet. Adjust damper, per Sections
2.5 and 5.6.
8.1.7
Reclaimer fill door open. Check door
8.1.8
Hole worn in flex hose between cabinet hopper
and reclaimer inlet, or reclaimer outlet and dust-collector
inlet. Replace hose.
8.1.9
Obstruction in flex hose between the cabinet
hopper and reclaimer inlet. Inspect hose for blockage.
8.1.10
Nozzle worn. Replace the nozzle when its orifice
diameter has increased by 1/16".
8.1.11
Paddle wheel worn. Check wheel for wear.
8.2
Abnormally high media consumption
8.2.1
Door on reclaimer open or worn door gasket. Air
entering the reclaimer around the door will cause media
carryover to the dust collector. Inspect door gasket. DO
NOT operate unless all doors are closed.
8.2.2
Outlet damper open too far. Adjust static
pressure, per Section 5.3.
8.2.3
Media may be too fine or worn out. Check
condition of media.
8.2.4
Using friable media that rapidly breaks down.
Check condition of media.
8.2.5
Blast pressure too high for media, causing
media to break down. Check blast pressure and adjust
as needed or change media.
8.2.6
Hole worn in reclaimer or leak in reclaimer
seams. Check entire reclaimer for negative-pressure
leaks.
8.2.7
Outlet valve not sealing. Inspect diaphragm.
8.2.8
Metering valve requires adjustment. Adjust
media flow, per Section 5.2.
8.2.9
When using media finer than 180-mesh, the inlet
baffle in the reclaimer (Pulsar VI only) may need to be
removed. Refer to Section 7.14 to remove bolt-on baffle.
8.3
Reduction in blast cleaning rate
8.3.1
Low media level reducing media flow. Check
media level and replenish or replace as needed, per
Section 4.2.
8.3.2
Media-air mixture out of adjustment. Adjust
metering valve, per Section 5.2.
8.3.3
Reduced air pressure. This may be caused by
the pressure regulator set too low, a malfunctioning
regulator, a dirty filter element in the air filter, partially
closed air valve, leaking air line, or other air tools in use.
Inspect all items.
8.3.4
Blockage or partial blockage in nozzle.
Blockage may occur because of a missing reclaimer
debris screen. Inspect reclaimer screen.
8.3.5
Moist media. Frequent bridging or blockage in
the area of the metering valve can be caused by
moisture. See Section 8.5.
8.3.6
Air leaking through the outlet valve, reducing
blast pressure and control pressure to media metering
valve. Inspect diaphragm and outlet valve body.
8.4
Plugged nozzle
8.4.1
A damaged or missing reclaimer screen will
allow large particles to pass and block the nozzle.
Replace or reinstall as necessary.
8.5
Media bridging
8.5.1
Frequent bridging or blockage in the media
metering valve can be caused by damp media. Media
becomes damp from blasting parts that are slightly oily,
from moist compressed air, or from absorption from
ambient air.
8.5.2
To avoid contaminating media from the
workpiece, all parts put into the cabinet should be clean
and dry. If parts are oily or greasy, degrease and dry
them prior to blasting.
8.5.3
Moist compressed air may be due to a faulty
compressor that overheats or pumps oil or moisture into
the air line, too long of an air line permitting moisture to
condense on the inside, or from high humidity. Drain
filters and receiver tank regularly. Ongoing problems
with moist air may require the installation of an air dryer
or aftercooler in the air-supply line.