TeeJet TASC-6600 - Manual (Page 23)

2-11
TASC-6000, 6300, 6600 98-05010
Rev. - 1
B. DIRECT MEASUREMENT OF THE “PRIME” VALUE
Actually measuring the amount of fluid needed to prime the injection line is the second, and more accurate method, of
determining the “PRIME” value. To do this, first calibrate each injection pump using the procedure outlined in Section
2.8.2.; then, operate the pump in a controlled manner, allowing its discharge to be collected and measured. Ordinarily, this
procedure would only need to be done once, unless there are major changes to the plumbing on your sprayer.
NOTE: MID-TECH suggests you do all your calibrations using water to keep the procedure as simple and safe as
possible.
The following procedure ensures an accurate measurement of the volume of fluid needed to prime each injection pump. It
should be followed exactly. The measurement is conducted with the vehicle stopped and the main carrier pump not
running. To prevent backflushing and siphoning, shut off the feed line from the main tank to the main pump.
Check the current Pump Calibration Number and Application Rate (pump to be calibrated), Boom Width “C”, and Test
Speed values. These should be typical for your sprayer operations. If not, reset them to a typical value, (Refer to Sections
2.3.2. & 2.5 to view and enter these values).
NOTE: Thoroughly flush all injection lines and fill with clean water before performing calibration procedure.
A. Make sure all chemical containers are filled with fresh, clean water, and they are connected to the proper injection
pumps. Make sure all boom switches are OFF.
B. Disconnect the injection lines at the injection point in the main boom supply line.
C. Set the Control Console switches as follows:
Power ON
Mode Selector OPERATE
Display Selector CHEMICALS, CHEM, APPLIED
Pump Switch #1 CENTER, ON POSITION (any individual pump can be selected)
The accumulated volume pumped by pump #1 will be displayed.
D. Use the INC/DEC switch to reset the display to zero. Select SET-UP with the Mode Selector switch. The current
pump calibration number is displayed. Now go back to the pump and perform the flush operation.
E . Open the cover on pump # 1 and place the calibration magnet on the “*” target depicted on the motor control
module. Allow the pump to operate until satisfied the lines are flushed and filled with fresh liquid. Remove the
magnet to stop the pump.
F. Return to the control console and select OPERATE with the Mode Selector switch. Use the INC/DEC switch to
zero the accumulated volume for pump #1 and again select the SET-UP mode with the Mode Selector switch. The
current pump calibration number is displayed. Now go back to the pump and perform the catch test.
G. Add foam marker dye to the water in each chemical container.
H. Place a collection container, graduated in ounces, under the discharge tube for pump #1.
(A rough calculation of “PRIME” vol. can be used to help chose the right sized container.)
I. Place the magnet provided on the “*” target on the pump control module. The pump will begin to operate.
J. Remove the magnet as soon as colored water begins to discharge from the tube. The pump will stop.
K. Read the volume of fluid collected in the graduated container. This volume is the “PRIME” value for pump #1.
Record this value.