How do I update the software on my 300 series automatic applicator?

This article discusses the steps to keeping your 300 series applicator running the latest and greatest software.

https://harvesttec.com/wp-content/uploads/2020/05/300-Series-Software-Updating-Instructions.pdf

****Ensuring that your 300 series applicator is equipped with the most up-to-date software is essential for maintaining optimal performance and functionality.

The following are the steps that need to be done in order to successfully update software in your 300 series
preservative applicator to allow it to work with the new 006-6672C, hard wire iPad solution.
1. Download the new HayApp from the Apple App store to your iPad, Version 2.7.1 (or higher). You will need
your Apple ID to do this. If you purchased your iPad from Harvest Tec and have not created an Apple ID
you will need to do this first. Refer to the Apple iPad manual for details. There is no cost to update the app.
2. With power attached and your key switch turned off,
locate your 300 series controller that is mounted on your
baler next to the tank and remove the four screws that
hold the cover on.
3. With cover removed locate the USB header located on the side
opposite the wires are exiting the enclosure. Insert the UBS stick.
HARVEST TEC, INC
300 Series Software Update
PROC. Number: 300 Series Update Inst. REV. : 1
AUTHOR: Ben Pearce DATE: 5/20
4. Open the Hay App, you should see the device
selection menu. Ensure the latest app has been
downloaded and installed correctly by viewing
“Version 2.7.1” (or higher) under the logo. Turn Key
switch power on. A light on the USB drive should
start flashing (if the light does not flash keep the drive
inserted, the light may be dysfunctional). Updating
should take 45-60 seconds. After the update time has
elapsed you should now see your applicator
connected to the app.
5. Once the unit is updated, turn key power off, then remove the USB drive from the 300 Series
controller.
6. Turn Key switch power back on with the Hay App
open. Verify that version 120 or higher is displayed on
the main menu. Note: first three digits of red number
above set up mode.
7. If the applicator does not connect on this second
power cycle, follow these steps:
a. Keep the key power switch on
b. Close the app by pressing the iPad home button
2x rapidly and dragging the app picture off the
screen
c. Reopen the app, the applicator should connect in 3-5 seconds
d. If this does not work repeat steps 1-3 modifying step 1 by power cycling the key switch first
before opening the app.
Note: If future difficulties are experienced connecting to the app please refer to the steps
above.
8. Reattach cover to the 300 control that is on the baler.
9. You will need to check your settings in Setup Mode for both application and baling rate as these
will have been reset to factory defaults during the update process