New Holland CX720 Repair Manual page 1303

3. ELECTRICAL TEST PROCEDURE 3: RESISTANCE TEST FOR ELECTRICAL PARTS CONDITIONS FOR
PERFORMING RESISTANCE TEST
1. Disconnect combine part by unplugging electrical
connectors to expose the part assembly connector for
testing.
2. Set electrical meter to measure resistance or Ohms
and insert test probes into connector terminals spec-
ified in procedure. When checking potentiometers,
measure from wiper terminal to each of the other
terminals while TURNING THE POT SHAFT. This
will ensure no open spots escape detection. When
checking rocker or rotary switches, actuate the switch
while measuring for opens and shorts.
3. Compare measured values to values specified in the
fault code procedures. Allow plus or minus 5 percent
of range tolerance for all measurements.
DISTRIBUTION SYSTEMS - ELECTRICAL POWER SYSTEM
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