Instructions for Micro-Trak
Seed Rate Control Systems
Used with Raven 440/450 Controllers
Installing the Planter Drive
1. Choose a location between row units for the tool bar mount
bracket approximately five inches to the left of a hex shaft
hanger bearing to the center of the tool bar mount bracket.
Mount the bracket to the tool bar using the supplied 1/2”
U-bolt making sure the bracket is square with the tool bar. It
is important to mount the drive assembly as close as possible
to a hex shaft hanger bearing.
2. Mount the motor bracket assembly to the tool bar bracket
using the four 3/8” by 1 1/4” flange bolts. Slide the motor
bracket towards the tool bar as far as it will go and tighten
the flange bolts.
NOTE: Skip step 3 if you are installing a secondary drive
assembly.
3. Mount the hydraulic flow control valve to the motor bracket
using the two 5/16” by 2 3/4” bolts and 5/16” flange nuts. Be
sure the output of the control valve is pointed away from the
tool bar.
4. Install the split sprocket on the hex shaft. Align the hex shaft
sprocket with the outside idler sprocket and tighten.
5. Cut a piece of chain to 23 1/2” and install on inside motor
sprocket and idler sprocket using one of the supplied
connector links. Tighten chain by loosening idler sprocket
and sliding down and retighten.
6. The length of chain required between the outside
idler sprocket and hex shaft sprocket varies by planter
manufacturer and model, so you will need to measure to
determine the length. Cut to length and install using the
supplied connector link.
.062”
7. Loosen the four 3/8” flange bolts installed in step 2.
8. Locate the full threaded 1/2” by 3” bolt, 1/2” jam nut and
1/2” flat washer. Install the flat washer on the bolt and insert
through the tab on the back of the tool bar bracket, thread
the jam nut on and then thread bolt into the motor bracket.
Use this bolt to adjust the chain between the idler and the
hex shaft and tighten the four 3/8” flange bolts.
9. Locate the four SAE #8 male x JIC #8 male straight adapters
and two 90 degree swivel nut elbows and install in both the
“P” pressure and “T” tank ports on the valve mounted on
top of the hydraulic motor. The other two adapters go in
the input and output ports on the control valve. Install the
elbows on the “P” port on valve and output port on control
valve.
10. Locate the 1/2” hose assembly and install between the “P”
port and output port.
11. Locate the SAE #8 male plug and install in the bypass port of
the control valve unless the drive assembly is connected to
an open center hydraulic system.
12. Install the sensor bracket to the motor bracket near the
motor sprocket using on of two 1/4” by 3/4” bolts and flange
nuts.13. Install gear tooth sensor to sensor bracket using the
remaining 1/4” by 3/4” bolt and flange nut and adjust so that
the sensor is pointed directly at the center of the motor shaft
and 1/16” away from the tip of the sprocket teeth.
P/N 50289 Rev A • © 2009 • Page 11
P/N 10221
P/N 12289
P/N 17917
P/N 17918
