DirectFlo DF1400
Chapter 3: Using the DirectFlo
Comco Inc.
3-17
Issue Date: January 2009
Changing the Abrasive
1.
Shut down the DirectFlo by pressing the Power switch to "OFF". Tank pressure
will take 10 to 15 seconds to fully vent. If the DirectFlo is equipped with an
extended powder tank, it will take between 30 and 45 seconds to vent.
2.
Loosen (do not remove) the four cover hold-down bolts with the 9/16" wrench
provided in the accessory kit. Let the cover bolts swing down and lift off the tank
cover (see figure 2-4).
3.
Grasp the powder basket by the lip and lift straight up. Avoid lifting the powder
basket near the slot, since this is the weakest point in the lip. The slot is for
pouring powder out, it is not a handle.
4.
Empty the powder from the basket into a suitable waste container.
Do not try to
save this abrasive.
5.
Carefully clean out any remaining powder from both the basket and the tank.
The preferred method is by using a vacuum, or slip the dust collector hose off the
back of the WorkStation and use it to vacuum the inside of the basket, tank and
cover.
6.
Insert the basket back into the tank by pushing down with a slight twist, to seat
the O-ring.
7.
Wipe off all abrasive on the tank top surface and the tank cover O-rings to ensure
that the sealing surface is clean.
It is critical that the tank cover seals
properly to the tank surface.
Check to make sure that the O-rings are not
damaged. Replace the O-rings if necessary (see Chapter 5: Trouble-shooting
and Repair, “Tank Cover”).
8.
Replace the tank cover. Be sure that the tank cover is properly oriented on the
tank, with the vent holes at the front and rear. Swing the bolts up into the slots in
the cover and tighten the nuts firmly, but not too tight.
9.
Turn the Power “ON” to pressurize the unit. Hold the handpiece and depress the
footswitch for approximately 30 seconds to purge any remaining abrasive out of
system.
10.
Follow the directions in “Refilling the Tank”, above.
