6 manual override of control valve, 1 override channel c control, 2 override channel l, 1, 2, & 3 – TeeJet TASC-6500 User Manual
Page 28: 7 setting test speed, 7 setting test speed -4
3-4
98-05019
Rev- 1
CE & S
TANDARD
V
ERSION
TASC 6200/6500
3.6 MANUAL OVERRIDE OF CONTROL VALVE
Sometimes it is necessary to manually override the control valves. This feature is useful for stationary unloading
of the vehicle or for priming of the liquid pump when first starting the machine. TASC allows the control valves
on flow channels to be overridden easily.
3.6.1 OVERRIDE CHANNEL C CONTROL
Select the CARRIER-Appl. Rate position with the Display Selector switch while in the SET-UP mode with all
booms OFF. Set the C Product Switch to the center ON position. Use the DEC switch to zero the channel C
application rate. Switch the mode selector to OPERATE. The display shows "Flow Contl OFF Auto". Channel
C flow control valve now responds to toggling of the INC/DEC switch. INC opens the valve and DEC closes the
valve. The switch must be held for a few seconds for the valve to open or close all the way. NOTE: The Display
Selector must remain in the CARRIER-APPL. RATE position.
When the booms are turned on and there is some ground speed, the actual application rate of the C channel will
be displayed.
Re-entering an application rate for channel C causes the TASC to resume normal operation.
3.6.2 OVERRIDE CHANNEL L, 1, 2, & 3
(Channels 1, 2, and 3 "Flow Mode" only)
While in the SET-UP mode, select the L & CHEMICALS, Appl. Rate position on the display selector switch.
Turn the product switch, for the desired channel, to the center ON position. Use the DEC switch to zero the
channel application rate. Switch the mode selector to OPERATE. The display shows "Flow Contl OFF Auto".
The control valve, for the chosen channel, now responds to toggling of the INC/DEC switch. INC opens the
valve and DEC closes the valve. The switch must be held for a few seconds for the valve to open or close all the
way.
To view the actual application rate of the L channel while in the manual override mode, the booms must be on
and there must be some ground speed.
Re-entering an application rate for the channel causes the TASC to resume normal operation.
3.7 SETTING TEST SPEED
The TASC console provides a simulated speed signal which can be used for stationary testing (see calibration
procedures - sect. 2.11, 12, 13) or in emergencies when the vehicle speed sensor fails (see Emergency Opera-
tions - sect. 6.1).