Case IH AFX8010 Repair Manual page 2021

Command Engage switch - Short circuit to B+ (K.25.E.05.83 -
G.30.B.54)
AFX8010
E0036-03 - Feeder CVT Pump Voltage Supply
Cause:
The Feeder CVT Pump Voltage Supply circuit is shorted to a higher than normal voltage source.
Possible failure modes:
1. Feeder CVT Pump Voltage Supply wiring shorted to a high source.
2. Faulty alternator/regulator.
3. Controller internal failure (internal regulator failure).
Solution:
1.
Key ON, engine running. Move the separator engage switch S-30 and feeder engage switch S-31 to the ON
positions. Enter the Universal Display Plus "DIAG" screen. Select the "FEEDER" sort menu, and select "CVT
PMP VOLT" to check the voltage range.
The proper voltage is 10.0 - 18.0 volts.
A. If the voltage reading is greater than 18 volts, continue with Step 2.
B. If the voltage reading is between 10 and 18 volts, go to Step 5.
2. Shut the combine OFF, and then turn the key switch back ON. Enter the Universal Display Plus "DIAG" screen.
Select the "VOLTAGE" sort menu, and select "CCM2 BAT" 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. Key switch in the "Off" position. Check the voltage at fuse F42 using a multi-meter.
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. Key switch in the "On" position. Move the separator engage switch S-30 and feeder engage switch S-31 to the
ON positions. Remove the instructional seat and storage bin to gain access to connector X018 on CCM1.
Check the voltage at connector X018 pin J1-17.
A. If the voltage reading is greater than 18 volts, then a high voltage source has been connected to
one of the following wires:
- wire 109 orange, fuse F48 to relay K28, terminal 3
- wire 108 orange, fuse F48 through connector X001 pin 3 to RC harness splice
- RH console power wires to propulsion handle S-03, front switch panel A-13, rear switch panel A-18
and RHM connector X026 pins 4 & 5
- wires 300 orange, 110 orange & 1180 orange, RH harness splice across separator switch S-30 to
neutral switch S-02 connector X059 pin 3
- wires 147 yellow, 111 yellow & 1061 yellow, separator engage switch connector X055 pin 6 to CCM2
connector X015 pin J1-7 and connector X012 pin J1-7
- wire 1212 yellow, separator engage switch connector X055 pin 3 to connector X012 pin J1-17
- wire 302 yellow, separator engage switch connector X055 pin 3 to feeder engage switch connector
X056 pin 5
CROP PROCESSING - FEEDING Feeder housing
9712 1 27/05/2004
K.25.E / 49