Contracor ECO-100S, Instructions Manual

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ECO-series suction blast cabinets 21
During the blast cabinet operation, the dust collector must regularly be cleaned. This
is done manually by opening the ball valve on the dust collector, which expands compressed
air at high velocity onto the inner surface of the dust collector Àlter. This causes the dust to
fall off the outer surface of the Àlter cartridge, and so permit reliable Àltration of air. Open
the ball valve for only one or two seconds, to give a pulse of compressed air onto the Àlter.
An automatic dust collector pulsed air cleaner is also available. Air is pulsed automatically
onto the inner surface of the dust Àlter according to the timer settings. Prolonged periods of
blasting or duty conditions may require adjustment of the timer settings.
4.2.5. Stop blasting operation and shut-down
To stop blasting, remove pressure on the foot pedal. Use the blow-off nozzle to
blow media off cleaned parts. Allow the exhauster to clean the cabinet of airborne dust
before opening the door and unloading the parts. Push the “OFF” button to switch off the
exhauster. Turn on/ of switch to the position “0” to switch off the lights and Àlter pulse
cleaning (when Àtted). Shut off the air supply to the blast cabinet and drain air Àlter.
4.3. Adjustment
4.3.1 Blasting pressure
The pilot pressure regulator, located on the control panel of the cabinet, enables the
user to adjust the blasting pressure to suit the application. The suitable pressure for most
purposes is around 5-6 bar. Lower pressures may be required on delicate substrates, and
will reduce media breakdown. Higher pressure may be required for difÀcult blasting jobs
on durable substrates, but will increase media break down. In all cases, highest production
can only be achieved when pressure is carefully monitored. Adjust air pressure by turning
the knob on the pilot regulator located on the front of the control panel. Pull the knob out,
and turn clockwise to increase pressure or counter-clockwise to decrease. Once operating
pressure is set, push the knob in to lock.
4.3.2 Air jet adjustment
The air jet should be screwed 4.5 to 5 full turns into the rear of the GX gun body.
Doing so will leave 3.5 to 4 threads exposed past the lock nut. Tighten the lock nut to hold
the oriÀce in place.