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Control valve For and Aft - Unidentified failure (K.25.B.13.06 -
G.30.B.46)
AFX8010
E0189-11 - Reel Aft Valve
Cause:
The header reel aft valve (L-15) circuit open, or shorted to ground.
Possible failure modes:
1.
Supply wiring damaged.
2.
Bad solenoid.
3.
Controller internal failure (internal regulator failure).
Solution:
1.
Enter the Universal Display Plus "DIAG" screen. Select the "HEADER" sort menu, and select "REEL AFT
VLV". Change the drop-down list to "STATUS", and press the "OFF" button to change the circuit output to "ON".
The "STATUS" screen should indicate "OK" if the circuit is working properly.
A.
If the status screen indicates "ERROR", the circuit is open or shorted to ground. Continue with Step 2.
B.
If the status screen indicates "OK", the circuit is working properly. Continue with Step 7.
2.
Disconnect connector X021. Use a multimeter to check the resistance of the header reel aft valve coil (L15) at
connector X021 pin R & S. The proper resistance range is 3 - 5 ohms.
A.
If there is zero resistance, the header reel aft solenoid is shorted internally. Replace the solenoid.
B.
If there is infinite resistance, the header reel aft solenoid is open. Replace the solenoid.
C.
If the resistance is correct, continue with Step 3.
3.
Disconnect connector X021. Use a multimeter to check the resistance between the header reel aft valve coil
(L15) at connector X021 pin R or S and chassis ground. There should not be continuity to ground.
A.
If there is continuity to ground, there is a short to ground in the feeder valves harness between connector
X021 and the header reel aft solenoid. Locate the short and repair.
B.
If there is no continuity to ground, continue with Step 4.
4.
Disconnect connector X021. Use a multimeter to check for continuity between the front frame (FF) harness
end of connector X021 pin R and chassis ground. Flex the front frame (FF) harness between the connector
X021 and connector X017 while making this check.
A.
If there is no continuity to ground, continue with step 5.
B.
If there is continuity to ground, there is a short to ground in the front frame (FF) harness between
connector X021 and connector X017 pin J3-5 wire 559 white. Locate the short and repair.
5.
Disconnect connector X021. Use a multimeter to check for continuity between the front frame (FF) harness
end of connector X021 pin S and chassis ground. Flex the front frame (FF) harness between connector X021
and the front frame ground 2 while making this check.
A.
If there is continuity to ground, continue with step 6.
B.
If there is no continuity to ground, there is an open circuit in the front frame (FF) harness between
connector X021 pin S and the front frame ground 2 wire 588 or 592 black. Locate the open and repair.
6.
Turn the key switch to the ON position. Use the Universal Display Plus "DIAG" screen to manually power
the header reel aft valve. Use a multimeter to check for 12 volts between connector X021 pin R and
chassis ground.
CROP PROCESSING - FEEDING Reel feeding
9710 1 27/05/2004
K.25.B / 7
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