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4. Installation of Star Wheels and Bale Rate Sensors
Model 451, 450 & 445 (Two-Tie only)
Locate parts bag B. The pair of star wheels will need to mount on the bottom side as close to the front of the
bale chute as possible and at least 10 mm away from any metal. They will need to maintain a safe distance
away from the twine.
The star wheels will require two holes to be drilled per block, when drilling make sure to keep the wheel square
to the bale chamber. Any angle will cause stress on the wheel and will eventually cause the wheel to work
itself out of the block. Some balers may require a notch cut on the bottom of the bale chamber to mount the
star wheels as close to the front of the chamber as possible. Use the template in back of manual to aid in
installation.
Use the supplied bolts and place the carriage head inside of the bale chamber followed by lock and nut. Next
attach the star wheels to the bolts followed by flat washer, lock washer and nut. The right side star wheel will
have the bale rate sensor bolted to the bottom of the block.
First, remove the cover from the star wheel block and use a ¼” nut driver to remove the nut from the electronic
swivel. Next, run the star wheel sensor wire through the black grommet and place the eye terminal on the star
wheel sensor. Tighten the eye loop with the nut on the sensor and put the star wheel cover back on the base.
Next, tighten the grommet to form a tight seal around the wire. The sensor with the longer sensor wire should
say “FRONT”, which indicates it should be placed in the front sensor hole. The sensor wire with the shorter
wire should say “BACK.” The tip of the sensor should be placed no more than 3mm away from the star wheel
teeth and no less than 1 mm from the star wheel teeth. Each sensor will have an LED light located on the
sensor by the sensor holder. Once the unit is powered up spin the wheel and make sure that both led lights
turn on and off. If they don’t turn on and off, adjustments may need to be made.
Once the star wheel connection is complete, run the harness along the baler frame to the BMP. See wiring
system diagram.
Model 451 & 445 (CNH Only)
Model 450 & 445
For AGCO part cross-reference visit: www.harvesttec.com/system.html
