CONTRACOR
®
Version 4.2
26
6.1.7
Reclaimer door open. Reclaimer door have to be closed during the cabinet operating.
6.1.8
Check for obstruction in flex hose between the cabinet hopper and reclaimer inlet.
6.2
Abnormally high media consumption
6.2.1
Reclaimer door open, not in place, improper fit or worn gasket. Air entering
reclaimer at this point will cause media to be carried into the dust collector. DO NOT operate
system unless the door is closed.
6.2.2
Hole worn in reclaimer, or leak in reclaimer seams. Check entire reclaimer for
negative-pressure leaks.
6.2.3
Outlet damper open too far. Adjusting static pressure in Section 4.3.5.
6.2.4
Using soft media that rapidly breaks down, or using media that is too fine or worn out.
6.2.5
Nozzle pressure too high for media, causing media to break down.
6.3 Reduction in blast cleaning rate
6.3.1
Low media level reducing media flow. Check and fill if low.
6.3.2
Incorrect metering valve adjustment. Adjust per Section 4.3.3.
6.3.3
Reduced air pressure. This may be caused by a malfunctioning regulator, a dirty
filter element in air filter, partially closed air valve, leaking airline, or other air tools in use.
6.3.4
Blockage in media line or gun. Blockage may occur as a result of a missing debris
screen, or incorrect metering valve adjustment permitting heavy media flow. Check media
valve adjustment per Section 4.3.3.
6.3.5
Worn gun parts such as nozzle or air jet. Inspect and replace all worn parts.
6.3.6
Worn media hose. Check hose for leaks and soft spots. Replace when worn or
damaged.
6.3.7
Air jet in gun out of adjustment. Check adjustment per Section 4.3.2..
6.3.8
Moist blast media. Frequent bridges or blockage in the area of the metering valve
can be caused by moisture. See Section 6.5.
6.4 Plugged nozzle
6.4.1
A damaged or missing reclaimer screen will allow large particles to pass and
block the nozzle. Replace or re-install as necessary.
