New Holland CX720 Repair Manual page 3913

B. If there is continuity to ground continue with Step 22.
23. Disconnect inline connector X007 . Use the multimeter to check for continuity between connector X007 pin 1
and chassis ground.
A. If continuity is found continue with Step 23.
B. If no continuity is found the short to ground is in the feeder harness between connector X007 and connector
X080 wire 719 white. Locate the short and repair.
24. Disconnect inline connector X031 . Use the multimeter to check for continuity between connector X031 pin 10
and chassis ground.
A. If continuity is found the short to ground is in the cab main harness between connector X031 and the relay
base for relay K17 terminal 3 wire 719 white.
B. If no continuity is found the short to ground is in the front frame harness between connector X031 and
connector X007 wire 719 white. Locate the short and repair.
25. Reverser does not operate in either direction. Fault code indicates an open in circuit. Disconnect the reverser
motor connector X080.
A. Measure the resistance on connector X080 between pin A and pin B. The proper resistance range for the
coil is 4.0 - 8.0 ohms. If out of specification replace fan adjustment motor.
B. If the motor coil resistance is within specification continue with Step 25.
26. Replace the fan/reverser relay K17 with a known good relay. Connect X080 and operate reverser.
A. If the reverser is now working troubleshooting is complete.
B. If the reverser still does not work continue with Step 26.
27. Again disconnect reverser connector X080. Key switch on, engine running. Place straw elevator reverse tum-
bler switch in ON position. Activate reel speed increase to REVERSE. Use a multimeter to measure the voltage
between connector X080 pin A and chassis ground.
A. If 12 volts is read continue with Step 27.
B. If 12 volts is not read continue with Step 29.
28. Key switch on engine running. Place straw elevator reverse tumbler switch in ON position. Activate reel speed
decrease to ROCK. Use multimeter to measure the voltage between connector X080 pin B and chassis ground.
A. If 12 volts is not read continue with Step 28.
29. Disconnect inline connector X007. Key switch on, engine running. Activate reel speed decrease to ROCK. Use
multimeter to measure the voltage between connector X007 pin 2 and chassis ground.
A. If 12 volts is read the open is between connector X080 and connector X007 wire 770 gray in the feeder
harness. Locate the open and repair.
B. If 12 volts is not read the open is between connector X007 and the next splice in wire 770 gray in the front
frame harness.
30. Disconnect inline connector X007. Key switch on, engine running. Activate reel speed increase to REVERSE.
Use a multimeter to measure the voltage between connector X007 pin 1 and chassis ground.
A. If 12 volts is read the open is between connector X007 and connector X080 wire 719 white in the feeder
harness.
B. If 12 volts is not read continue with Step 30.
31. Disconnect inline connector X031. Key switch on, engine running. Activate reel speed increase to REVERSE.
Use a multimeter to measure the voltage between connector X031 pin 10 and chassis ground.
A. If 12 volts is read the open is between connector X031 and connector X007 wire 719 white in the front
frame harness.
CROP PROCESSING - CLEANING Primary cleaning
K.62.B / 201
2 4/7/2006