DCM-161 MINI TUMBLE BLAST CABINET
Page 6
5.3.2
From inside the cabinet door, unscrew the
holding nut from the gun end, and pull the nozzle from
the gun. Inspect the nozzle O-ring and replace if worn or
damaged. Insert a new nozzle, placing the tapered end
toward the jet. Screw the holding nut onto the gun.
5.0 MAINTENANCE
This machine is not to be used for applications
which generate dust from lead coatings, heavy
metals or any other toxic materials. Failure to
wear approved respirators and eye protection
when servicing dust-laden areas of the cabinet,
and when emptying the dust bag could result in
serious eye irritation and lung disease. Toxicity
and health risk vary with type of media and dust
generated by blasting. The respirator must be
approved for the type of dust generated.
Identify all material being removed by blasting,
and obtain a material safety data sheet for the
blast media.
WARNING
5.4 Media
Hose
5.4.1
To avoid unscheduled down-time, periodically
inspect the media hose for thin spots, by pinching it
every 6 to 12 inches.
5.5 Tumble
Barrel
5.5.1
Periodically inspect the barrel for wear. Replace
the barrel as soon as it is worn thin.
NOTE: To avoid unscheduled downtime, establish a
weekly inspection schedule. Inspect all parts subjected
to media contact, including; the gun, nozzle, media hose,
and tumble barrel.
6.0 TROUBLESHOOTING
5.1 Dust
Bag
5.1.1
The bag collects dust on its inner surface. A high
dust level in the cabinet indicates a dirty bag. Empty as
frequently as necessary to maintain good air flow
through the cabinet, and before the weight of dust
prevents full inflation of the bag. A zipper opening is
located in the bottom of the bag for emptying.
5.1.2
Periodically turn the bag inside out and vacuum
the inner surface.
NOTE: Blast media is usually non-toxic, however, some
materials removed by the process may be. Check with
proper authorities for disposal restrictions.
5.2
Compressed Air Filter
5.2.1
The cabinet is equipped with a manual drain air
filter/regulator. Drain the filter at least once a day, and
more often if water is present. Moist air inhibits the flow
of media. If moisture continues to be present, a dryer or
after-cooler may be required.
5.3 Nozzle
5.3.1
Replace the nozzle(s) when its diameter has
increased by 1/16", or when suction diminishes
noticeably.
To avoid serious injury, observe the following
when troubleshooting. Turn off the air, and lock
out and tag out the air supply.
WARNING
6.1
Dust Leaking From The Cabinet Enclosure
6.1.1
Dirty filter bag. Empty the dust bag regularly.
See Section 5.1.
6.1.2
Damaged door gaskets. Inspect and replace
damaged gaskets.
6.1.3
Blast pressure too high. Maximum blast
pressure is 60 psi.
6.1.4
Paddle wheel worn. Check wheel for wear.
6.2 Abnormally
High
Media
Consumption
6.2.1
Media may be too fine or worn-out.
6.2.2
Using friable media that rapidly breaks down.
6.2.3
Nozzle pressure too high for the media, causing
media to break down.
