Case IH AFX8010 Repair Manual page 2034

Command Engage switch - Short circuit to B+ (K.25.E.05.83 -
G.30.B.54)
AFX8010
E0047-03 - Feeder ETR Clutch Voltage Supply
Cause:
The feeder engine to ring clutch power supply circuit is shorted to a higher than normal voltage source.
Possible failure modes:
1. Circuit wiring shorted to high voltage source.
2. Faulty alternator/regulator.
3. Controller internal failure (internal regulator failure).
Solution:
1.
Start the combine engine . Enter the Universal Display Plus "DIAG" screen. Select the "FEEDER" sort menu,
and select "ETR CTCH VOLT" to check the voltage range.
Increase the engine RPM to high idle (maximum) and check voltage range.
The acceptable voltage range for the module is 10 - 18 volts.
A. If the voltage reading is greater than 18 volts, continue with Step 2.
B. If the voltage reading is between 10 - 18 volts, continue with step 5.
2. Shut off the combine engine . Enter the Universal Display Plus "DIAG" screen. Select the "FEEDER" sort
menu, and select "ETR CTCH VOLT" to check the voltage range.
The acceptable voltage range for the module is 10 - 18 volts.
A. If the voltage reading is between 10 - 18 volts, the alternator and/or regulator has failed, and is
producing excessive voltage. Refer to Alternator - Problem solving (A.30.A.82 - G.40.A.30) for
additional alternator testing information.
B. If the voltage reading is greater than 18 volts, continue with step 3.
3. Turn off the key switch to power down the system. Use a multimeter to check the voltage at fuse F-42.
A.
If the voltage reading is greater than 18 volts, then there is a fault in the wiring of the 24V starting system.
Refer to STARTING SYSTEM - Problem solving (B.80.A - G.40.A.30) for additional information.
B. If the voltage reading is between 10 - 18 volts, continue with step 4.
4.
Turn the key switch S-02 ON. Engage the separator engage switch S-30 and feeder engage switch S-31.
Remove the instructional seat and storage bin to gain access to the CCM1 connector X018. Turn the key
switch ON. Use a multimeter to check the voltage at connector X018 pin J1-7.
A. If the voltage reading is greater than 18 volts, then a high voltage source has been connected to one of
the following wires in the right console (RC) harness:
- wire 109 orange, fuse F48 to K-28 relay pin 3 (fuse panel)
- wire 108 orange, fuse F48 to through connector X001 pin 3 to RC harness splice
- wire 1005 orange, RC harness splice to RC harness splice
- wire 1027 orange, RC harness splice to propulsion handle connector X059 pin 1
- wire 1283 purple, RC harness splice to rear switch panel connector X387 pin 5
- wire 1177 orange, RC harness splice to rear switch panel connector X387 pin 14
- wire 1028 purple, RC harness splice to front switch panel connector X386 pin 1
- wire 1123 orange, RC harness splice to front switch panel connector X386 pin 14
- wire 098 orange, RC harness splice to RHM connector X026 pin 4
- wire 089 orange, RC harness splice to RHM connector X026 pin 5
- wire 1180 orange, RC harness splice to separator engage switch S-30 X055 pin 5
CROP PROCESSING - FEEDING Feeder housing
9712 1 27/05/2004
K.25.E / 62