Operational Check of Harvest Performance Monitor

CAUTION: Do not start engine.

Move road safety switch to field position.
Turn starter switch from position (0) to position (II)
Switch threshing unit to ON position.

I - Check straw walker sensors:

· Turn potentiometer (A) clockwise as far as it will go.

· Set selector switch (B) to the position for medium-sized grains.

· Rotary switch (C) should be in the medium position at both sides.

· Actuate the left and right straw walker sensors by tapping them lightly with a hard object or by dropping kernels on them. A second person is required to observe the needle at the display. The needle must be seen to move.

II - Check cleaning shoe sensor:

· Turn potentiometer (D) clockwise as far as it will go.

· Set selector switch (B) to the position for medium-sized grains.

· Tumbler switch (E) should be in the middle position.

· Check cleaning shoe sensor in the same way as the straw walker sensors.

· Switch on the parking light and check whether the display light is on.

· Switch off the parking light. Disengage the threshing unit and remove the switch key.

A-Potentiometer for straw walker sensitivity
B-Selector switch
C-Rotary switch
D-Potentiometer for cleaning shoe sensitivity
E-Switch

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· If a fault occurs during the check described above, have the fault rectified by your John Deere dealer.

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