29
Removal of the Ground Drive Chain
In heavy windrow conditions, it is possible to remove the ground drive chain as the windrow itself will turn the
tines more smoothly than relying on the chain. This normally takes a minimum of two windrows raked together
for a field yielding over 1.25 ton per acre.
Field Operation
The re-moisturizing of hay before baling will take some learning on the part of the operator. There are
three important factors to keep in mind:
1. It will take between 30 seconds and 30 minutes for the moisture to soak into the alfalfa and soften the
plant depending on conditions. Application of excess water will require additional wait time for the
excess moisture to evaporate.
2. The added water will eventually evaporate from the windrow over time. More rapidly in low humidity or
windy conditions. No wind 15-20 minutes, wind up 10 mph 8-12 minutes.
Other conditions, such as ground moisture, humidity and windrow density could affect these
recommendations. Start with these, but keep feeling the hay to determine what works best. Once the
most optimum interval is determined,
keep the gap between the dew simulator and baler constant.
INTERVAL GUIDELINES BETWEEN TREATING AND BALING
WIND CONDITION
TEMPERATURE
HAY MATURITY
SUGGESTED
INTERVAL
low (under 5 mph)
under 80
o
young
30 minutes
medium (5-12 mph)
under 80
o
young
15 minutes
high (12+ mph)
under 80
o
young
12 minutes
low (under 5 mph)
over 80
o
young
20 minutes
medium (5-12 mph)
over 80
o
young
12 minutes
high (12+ mph)
over 80
o
young
10 minutes
low (under 5 mph)
under 80
o
more mature
35 minutes
medium (5-12 mph)
under 80
o
more mature
20 minutes
high (12+ mph)
under 80
o
more mature
10 minutes
low (under 5 mph)
over 80
o
more mature
25 minutes
medium (5-12 mph)
over 80
o
more mature
12 minutes
high (12+ mph)
over 80
o
more mature
8 minutes
Using Surfactant
The Harvest Tec 720 Dew Simulator is designed to add moisture to windrowed hay and works best
with a surfactant added to the water. The surfactant will improve coverage and speed the absorption
rate. While some
Feed Grade
surfactants will work with the Dew Simulator, Harvest Tec has tested and
recommends Schaeffer Oil
WET-SOL 233
. The recommended dilution rate is 1.0% (10 gallons in a1000 gallon tank).
Add the surfactant
to the tank while filling with water
.
W E T - S O L
m
i
xes easily and will not settle out.
Summary of Contents for 720 Dew Simulator
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