Operating Instructions, Model 4400/VC (Rev. E) 6/3/2013 ................................... Page 9 of 10
5.10 Fan
Keeps the motor/pump running cool. If the fan fails to function for any reason, and it is
necessary to run the filler, remove the cover completely before using it. Repair or replace
the fan as soon as possible.
6.0 OPERATING THE FILLER
6.1 Principle of Operation.
It is helpful to be familiar with the filler's operating principle. The Model 4400/VC, Portable
Powder Filler operates on a vacuum/volumetric filling principle. Stated simply, the principle
of operation is…
“If a dry product is picked up into a fixed volume chamber, and compressed at a
uniform density by the constant force of a vacuum supply, then the weights of
successive doses of product which are dispensed from that fixed volume chamber
will, in fact, be closely repeatable.”
The principle is fundamentally sound, and its proper execution results in a filler of extremely
close accuracy and repeatability. The Model 4400/VC is a manually operated, state-of-the-
art embodiment of this filling principle.
6.2 Setting Up The Filling Gun
Connect the filling gun to the open end of the vacuum line. Set the piston* so that the face
of the porous filter is at an arbitrary depth. Draw a powder sample and doctor-off the
excess powder at the tip. Discharge and record its weight. Adjust the center screw on the
gun* to either increase or decrease the fill weight as required. Draw and discharge another
dose and recheck its weight. Repeat above steps as many times as necessary
to zero-in on the desired fill weight. Use a steel ruler or dial caliper to measure the depth of
draw. Record and save the delivered weight, the gun I.D. and the depth of draw for future
reference.
*The volumes of small Microguns between Ø1/16" and Ø5/16" are adjustable by
turning the barrel rather than the central stem screw.
6.3 Normal Operation
With the power turned ON, the console is normally in the vacuum mode. Powder is ready to
be picked up into the filling gun. Depressing the footswitch or pressing the Dose pushbutton
reverses the air flow, changing vacuum to pressure, and dispensing the powder.
7.0 PRECAUTIONS
Powder should never be drawn up into a filling gun without a gun filter. If this should
occur, remove and flush out all affected lines immediately, especially with powders that
have a tendency to harden. Flush pump using safety solvent. Replace all filters.
8.0 MAINTENANCE
The Model 4400/VC is virtually maintenance free. Occasional replacement of the filters is
the only thing that is usually ever needed, especially with very fine powders.
NEVER...LUBRICATE THE PUMP!
9.0 SERVICE
Consult factory for proper service recommendations. Normally, units which are returned to
us for service can be turned around within 48 hours of their receipt.
© 2000 KINEMATICS & CONTROLS CORPORATION .................................... Brooksville, FL
