TeeJet TASC-6500 - Manual (Page 31)

4-3
98-05019
Rev- 1
TASC 6200/6500
CE & S
TANDARD
V
ERSION
4.7 ROTATIONAL SENSORS
Periodically check rotational sensors to make sure that they are secured tightly to the shafts being measured. Also
check the torsion strap on slotted disc sensors to be sure it is not damaged or loose. Be sure the mounting brackets
for proximity sensors have not been bent or damaged. Replace any damaged parts immediately and calibrate the
associated channel.
4.8 MID-TECH PERISTALTIC LIQUID INJECTION PUMPS (TASC 6500 ONLY)
4.8.1 DAILY
Clean and lubricate the flexible tubing in the injection pumps prior to each day's operation. Use only the tube lube
from your supplier.
Check the calibration of the injection pumps. Calibration numbers will change as the pumps and tubes age.
At the end of the day, disconnect the pump from the MID-TECH TANK (or turn OFF the valve at the outlet of the
chemical tank), connect the pump to fresh water and flush according to the chemical manufacturers's directions.
Then, remove the tube from the pump housing to prevent it from developing a hard spot under the roller. This is
particularly important in cold weather, or when the pump will be idle the next day.
4.8.2 WEEKLY
Check the flexible tubing for wear. Look for cracking, side splits or other signs of material fatigue. Damaged tubing
must be replaced immediately. When tubing is replaced, the pump should be calibrated. Replacement tubing kits are
available through your MID-TECH dealer.
4.8.3 SEASONAL
Replace the flexible tubing before application season begins each year. Calibrate the pump at the start of each
season.
4.8.4 PERIODIC
Check calibration whenever it is suspected the system accuracy has deteriorated, or anytime tubing is changed.
4.9 OTHER INJECTION PUMPS (TASC 6500 ONLY)
At the end of the day, disconnect the pump from the tank (or turn OFF the valve at the outlet of the chemical tank),
connect the pump to fresh water and flush according to the chemical manufacturer's directions.
CAUTION: BE SURE THE CHEMICAL LINES ARE DISCON-
NECTED OR THE TANK VALVES ARE OFF, SO THAT LIQ-
UIDS CAN NOT DRAIN OR SIPHON THROUGH THE PUMP
INTO THE MAIN BOOM SUPPLY LINE.
CAUTION: BE SURE THE CHEMICAL LINES ARE
DISCONNECTED OR THE TANK VALVES ARE OFF, SO
THAT LIQUIDS CAN NOT DRAIN OR SIPHON INTO
THE MAIN BOOM SUPPLY LINE WHEN THE TUBES
ARE REMOVED FROM THE INJECTION PUMP.