TeeJet TASC-6500 - Manual (Page 30)

4-2
98-05019
Rev- 1
CE & S
TANDARD
V
ERSION
TASC 6200/6500
4.3 GROUND SPEED SENSOR
4.3.1 WHEEL SENSOR
Check the sensor daily for loose or bent fittings. Mud or trash can push the sensor out of alignment or knock magnets
off. Repair or replace any damaged parts immediately and calibrate the sensor.
4.3.2 RADAR SENSOR
Check the sensor daily to make sure its face is clean and the mounting bracket and hardware is tight. The sensor can
be wiped clean with a damp cloth. If it is suspected that the radar sensor mounting position has shifted, the mounting
bracket must be tightened and the sensor must be calibrated.
4.4 FLOW METER
Prior to each day's application, inspect the flow meter to be sure there are no leaks around its fittings. At the end of
the day, take care to thoroughly flush the flow meter with clean water.
BE CAREFUL THAT WATER OR SEDIMENT IS NOT TRAPPED IN THE FLOW METER, PARTICU-
LARLY IN COLD WEATHER, AS DAMAGE TO THE MECHANISM CAN OCCUR.
The flow meters supplied by MIDWEST TECHNOLOGIES are inherently rugged but continued use will eventually
wear the internal bearings and shafts until the meter becomes inaccurate. Repair kits are available to repair the
meters.
4.5 HYDRAULIC FLOW CONTROL VALVES
The most critical maintenance item for the hydraulic valves is the hydraulic oil filter. Keep the filters clean and
always use a good grade of replacement oil. Also do a daily check of the oil cooler heat exchanger to be sure it has a
good flow of air. Cool oil lasts longer and performs better.
Some valves have a removable cover over the motor actuator. Be sure the cover is secure and that any gaskets are in
place.
4.6 LIQUID FLOW CONTROL VALVES
Inspect the liquid flow control valve before each day's operation. Look for leaks around the attachment fittings and
valve stems. If the valve has a removable cover over the motor actuator, be sure the cover is secure and that any
gaskets are in place.
At the end of the day, care should be taken to thoroughly flush the valve with clean water.
BE CAREFUL THAT WATER OR SEDIMENT IS NOT TRAPPED IN THE FLOW CONTROL VALVE,
PARTICULARLY IN COLD WEATHER, AS DAMAGE TO THE MECHANISM CAN OCCUR.
CAUTION: While inspecting and cleaning the
radar speed sensor, do not look directly into the
face of the unit. The radar generates a low level
microwave signal which could be dangerous to the
eyes.