Table of Contents
Advertisement
B.
If there is continuity to ground, continue with Step 9.
7.
Disconnect connector X011. Use a multimeter to check for continuity between connector X011 pin 13 and
chassis ground. Flex the main frame (MF) harness between the connector X011 and connector X016 while
making this check.
A.
If there is continuity to ground, the open circuit is in the gearbox (GB) harness between connector X011
and connector X450 wire 877 blue. Locate the open and repair.
B.
If there is no continuity to ground, continue with Step 8.
8.
Carefully disconnect connector X016 on the bottom of CCM2 module. Use a multimeter to check for continuity
between connector X016 pin J2-40 on the module and chassis ground.
A.
If there is infinite resistance, the sense resistor in the CCM2 module has failed. Replace the module.
B.
There is less than 1 ohms resistance, indicating the sense resistor in the CCM2 module is okay.
The open circuit is in the main frame (MF) harness between connector X011 and connector X016 pin
J2-40 wire 877 blue. Locate the open and repair.
NOTE: The sense resistor in the module for the Beater / Chopper Current Sense circuit is easily damaged as a
result of excessive current draw or a short to high voltage.
9.
Turn the key switch to the ON position. Use the Universal Display Plus "DIAG" screen controls to manually
power the beater/chopper clutch valve. Use a multimeter to check for 12 volts between connector X450 pin
A and chassis ground.
A.
If 12 volts is not present, continue with Step 10.
B.
If 12 volts is found, continue with Step 11.
NOTE: The thresher engage switch S-30 must be engaged to supply power to the circuit.
10.
Turn the key switch to the ON position. Use the Universal Display Plus "DIAG" screen controls to manually
power the beater/chopper clutch valve. Use a multimeter to check for 12 volts between connector X011 pin
14 and chassis ground.
A.
If 12 volts is present, the open circuit is in the gearbox (GB) harness between connector X450 pin A and
connector X011 pin 14 wire 878 white. Locate the open circuit and repair.
B.
If 12 volts is not present, there is an open circuit in the main frame (MF) harness between connector
X011 pin 14 and connector X016 pin J2-30 wire 878 white. Locate the open and repair.
NOTE: The thresher engage switch S-30 must be engaged to supply power to the circuit.
11.
Visually inspect the harness and connectors for damage, bent or dislocated pins, corroded terminals or
broken wires.
A.
If no damage is found, erase the fault code and continue operation.
POWER TRAIN - PROCESS DRIVE Primary process drive
9683 1 27/05/2004
C.50.B / 25
Advertisement
Chapters
Table of Contents
Troubleshooting
