Operator's Manual

14
MAINTENANCE
PROCEDURE TO TEST THE FLOW METER
CABLE:
Disconnect the Console Control Cable from the
Flow Meter Cable. Hold the Cable connector so
that the key way is pointing in the 12 o'clock
position. See FIG. 2.
FIG. 2
VOLTAGE READINGS
2 o'clock to 6 o'clock (+5 VDC)
2 o'clock to 10 o'clock (+5 VDC)
1. Enter a METER CAL number of one (1) in key
labeled:
METER
CAL
5
2. Depress key labeled:
TOTAL
VOLUME
3. Place MASTER and BOOM switches ON.
4. With small jumper wire (or paper clip), short
between 2 o'clock and 6 o'clock sockets with a
"short - no short" motion. Each time a contact is
made, the TOTAL VOLUME total should increment
up 1 or more counts.
5. If TOTAL VOLUME does not count up, replace
defective cable.
6. Perform above voltage checks.
7. If cables all test good, replace Flow Sensor.
NOTE: After testing is complete, re-enter
correct METER CAL number before spraying.
FLOW METER MAINTENANCE AND
ADJUSTMENT PROCEDURES:
Once per season the Flow Meter should be flushed
and cleaned. Perform this procedure more often
if suspensin type products are being sprayed.
1. Thoroughly rinse and drain the entire spraying
system.
2. Remove Flow Meter from Sprayer and flush
with clean water to remove any chemicals.
3. Remove flange bolts from the Flow Meter. See
FIG. 3.
FIG. 3
1. Flange Bolt 4. Transducer
2. Turbine Hub 5. Turbine Stud
3. Turbine
4. Remove the turbine hub and turbine from inside
Flow Meter.
5. Clean turbine and turbine hub of metal filings
and any other foreign material, such as wettable
powders. Confirm that turbine blades are not
worn. Hold turbine in your hand and spin turbine.
It should spin freely with very little drag.
6. If transducer assembly is replaced or if turbine
stud is adjusted or replaced, verify the turbine stud
fit before reassembling. Hold turbine hub with
turbine on transducer. Spin turbine by blowing
on it. Tighten turbine stud until turbine stalls.
Loosen turbine stud 1/3 turn; the turbine should
spin freely.
7. Reassemble Flow Meter
8. Using a low pressure 5 PSI (50kPa) jet of air,
verify that the turbine spins freely. If there is a
drag, loosen the hex stud on the bottom of the
turbine hub by 1/16 turn, until the turbine spins
freely.
9. If Turbine spins freely and if cables have hecked
out. but Flow Meter is not totalizing properly,
replace Flow Meter Transducer.
2040
2041