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PNEG-1162CEX
DMC DIII Stir-Ator
6. Start-Up
The primary function of the Stir-Ator is to save time and money in the drying bin and improve uniformity of
the grain by mixing, loosening and circulating the grain during the drying process. The Stir-Ator should be
started as soon as there is 3' of grain in the bin and the operation continued throughout the filling, drying
and cooling. Periodic use of the Stir-Ator in stored grain, with or without the use of the fan, will improve
chances of preserving the grain and destroying insect infestations.
The temperature of the air used for stir-drying can range up to 65°C or even higher. WET GRAIN at the
BIN WALL may be a problem when stored in the drying bin. This can be minimized by drying with a 20° or
less heat rise, equipping the Design III with the optional offset trolley body or install wall liners or air tubes
in the drying bin. They are an excellent condensation preventative and can increase drying capacity
because higher drying temperatures can be used.
The Stir-Ator and fan/heater unit should be “matched” for efficient drying. Over-drying of bottom grain, with
scallops and channelling in the upper layers, is a frequent result of using a single-auger Stir-Ator with a
large capacity fan/heater and high drying temperature combination. Channelling occurs in the first few
hours of the drying operation. A Stir-Ator with more down augers is the remedy if high capacity is needed.
Conversely, over stirring with low heat and air flow will result in slower drying with increased drying costs.
It is important to have enough openings at the top of the bin so moisture-laden air can escape. Additional
manholes or roof vents can be beneficial in letting moisture-laden air out. Removing trash and fines will
improve the efficiency of the drying operation and reduce storage problems.
Start-Up in a Full Bin
Stir-Ator augers may become compacted when grain has built up around them and the augers have not
been running. Wherever possible we recommend that augers be run as soon as there is 1 m depth of grain
covering the augers. However, if for any reason the augers have had to be allowed be covered whilst not
running or have stood for a period of a time in a full bin, follow this procedure:
1. Initially try a normal start-up by pressing the start switch ON the control panel. If the augers have not
become compacted they will ran and should continue running.
2. If the augers are compacted and cannot run, shut the power OFF and lock it so that the augers cannot
start inadvertently.
3. Entering via the eaves hatch, place wooden planks on the top of the grain so that you can
stand safely.
4. Place a long handled vise grip or wrench on the top of the auger shaft and turn the auger by hand to
release it.
5. Repeat procedure for other stuck augers.
6. Open the beam box and re-set any motor overloads that have tripped.
7. Exit the bin; remove wooden planks; and re-start the auger.
TO HELP PREVENT AUGER COMPACTION, WE RECOMMEND THAT DURING THE STORAGE
PERIOD THE AUGERS BE STARTED AND RUN FOR 15 MINUTES EVERY WEEK. THIS WILL
KEEP THE AUGERS POLISHED AND HELP PREVENT COMPACTION.
