TeeJet TASC-6600 - Manual (Page 22)

2-10
TASC-6000, 6300, 6600 98-05010
Rev. - 1
N. REPEAT THIS PROCEDURE (steps B through M) FOR THE REMAINING PUMPS.
O. Record the Pump Calibration Numbers Here:
PUMP 1
PUMP 2
PUMP 3
PUMP 4
PUMP 5
PUMP 6
2.8.3 ESTABLISHING THE “PRIME” VOLUME FOR EACH INJECTION PUMP
The “PRIME” volume is the volume of material in the system, between the chemical tank and the injection point at the
main boom supply line. Obviously, this volume will depend on the sizes of lines used, the size of the injection pump, and
the distance between the tank and the injection point. There are two methods of establishing the “PRIME’ value.
A. CALCULATING THE “PRIME” VALUE
Calculate the volume of fluid needed to completely fill the line and pump, and convert this volume to fluid ounces, and
use this calculated value directly. Calculate this volume using the following formula (all measurements in inches):
(Line diameter/2) 2 X 3.1416 X Line length X 0.5541 = Volume in Fluid Ounces
For example, let’s suppose we have a system where the line from the chemical container to the pump inlet is 1/2 inch
diameter hose, 36 inches long. The pump tubing is 3/8 inch diameter, 25 inches long. And, the discharge line is 3/8 inch
diameter, 24 inches long. We want to calculate the volume, in ounces, needed to prime the line from the chemical container
to the discharge point.
(0.500/2) 2 X 3.1416 X 36 X 0.5541 = 3.92 ounces
(0.375/2) 2 X 3.1416 X 25 X 0.5541 = 1.53 ounces
(0.375/2) 2 X 3.1416 X 24 X 0.5541 = 1.47 ounces
“PRIME” Volume = 6.9 ounces
(NOTE: This calibration procedure can be conducted with one or
more boom sections active.. This will not affect the accuracy of the
calibration, however; the console will not allow any further opera-
tions until the active boom sections are turned "OFF". This ensures
the vehicle does not begin to spray by mistake. A message "BOOM
OFF" will be displayed to remind the operator to close the boom
valves.)