TeeJet TASC-6500 - Manual (Page 38)

TASC 6200/6500 999-1511
38
M-T 96162
7.4.2 ERROR MESSAGE Err-2
An Err-2/Pump ? message indicates that the channel is operating too slowly for an accurate delivery of
chemical. In addition, a visual message TOO SLOW will flash on the display. Speeding up the vehicle
will usually clear this condition. If this condition cannot be corrected, contact your MID-TECH dealer or
the factory for help.
7.4.3 ERROR MESSAGE Err-3
The Err-3/Pump ? (1, 2, 3 or L) message indicates that the channel is either not working, or the console is
not receiving a rate signal from that channel. When the console displays the Err-3/Pump ? message, it
has already turned off the power to the errant channel. This protects against over application.
A. If the channel is an injection pump, first check the injection pump and pump housing for obstruc-
tions. Be sure there is nothing caught in the injection pump tubing. If you find obstructions, clear
them or replace the tubing and check the calibration of the pump.
B. Check to see if the channel runs for 15 seconds or more before the Error 3 condition is detected
and the console turns the channel OFF again. This can be checked by turning the display selector to
TEST SPEED and then turning the errant channel rate switch ON. If the Error 3 condition re-occurs,
it is an indication that the rate sensor is faulty. Check the sensor wiring, connections and mounting
location for proper clearance. Repair or replace the sensor if required.
C. If the channel does not operate at all, check the power to the channel drive. Carefully inspect the
battery contacts, the in line fuse, and the wiring harness between the battery and the injection pump.
Also, check for the proper polarity between the positive and negative terminals on the battery. If the
power cables from the battery to the channel drive are connected to the wrong polarity, the channel
will not operate. If you find a problem, repair it and the channel should begin to operate normally.
D. If the channel is a wet boom, the boom solenoid switches may be failing to open the boom
section valves. It is possible to have TASC indicate a boom section is on when the boom section
valve has not actually opened. Check to ensure the boom valves are actually opening when the
boom solenoid switches are actuated. If they are not, the most likely cause of failure is a disruption in
the wiring from the solenoid switches to the solenoid actuated valves.
E. If all the above checks fail to resolve the difficulty, contact your MID-TECH dealer, or the factory,
for additional help.