Maintenance
Recommended Maintenance Schedule(s)
Maintenance Service
Interval
Maintenance Procedure
Every 200 hours
• Clean the flowmeter. (More often when using wettable powders)
Cleaning the Flowmeter
Service Interval:
Every 200 hours/Yearly (whichever
comes first) (More often when using
wettable powders)
1. Thoroughly rinse and drain the entire spraying
system.
2. Remove the flowmeter from the sprayer and flush
it with clean water.
3. Remove the retainer ring on the upstream side
G012934
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7
9
1
4
5
2
3
6
5
Figure 14
1.
Modified flanged body
6.
Turbine stud assembly
2.
Rotor/ magnet assembly
7.
Cable clamp
3.
Hub/ bearing assembly
8.
Thread screw
4.
Hub assembly (with
keyway up)
9.
Sensor assembly
5.
Retaining ring
10.
Flow-reducing sleeve
4. Clean the turbine and the turbine hub to remove
metal filings and any wettable powders.
5. Inspect the turbine blades for wear.
Note:
Hold the turbine in your hand and spin it.
It should spin freely with very little drag. If it does
not, replace it.
6. Assemble the flowmeter.
7. Use a low pressure (5 psi or 50 kPa) air jet to ensure
that the turbine spins freely. If it does not, loosen
the hex stud on the bottom of the turbine hub by
1/16 of a turn until the turbine spins freely.
Calibrating the Flowmeter
1. Press the [Meter Cal] key.
2. Enter the Meter Cal number.
Note:
The Meter Cal (or flowmeter) calibration
number is stamped on the tag attached to the
flowmeter or meter cable.
3. Press the [Enter] key.
4. Press the [Total Volume] key.
5. Press the [Enter] key.
6. Enter
0
.
7. Press the [Enter] key.
8. Fill the tank with a predetermined amount of water.
Note:
For best results, measure the water using
an independent method. For the best accuracy,
determine the amount of water ahead of time so that
the applicator tank is full.
9. Empty the tank by boom spraying under normal
conditions.
Note:
The vehicle does not need to be in motion to
perform this step.
10. After emptying the water from the tank, check the
Total Volume number. This number should equal
the predetermined amount of water. If it is not,
calculate the Meter Cal number using the formula
that follows. Under normal conditions, the Meter
Cal number should be /– 3% of the number
stamped on the tag of the flowmeter.
See the example below:
Meter Cal (from tag) = 1660
Total Volume = 103
Amount of water = 100
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