Ingersoll-Rand HP375WIR, Installation, Operation And Service Manual

Page: 34 / 46

Book: 22600498 (1/05) 35
Deutsch DT Series Connector
(Note the orange wedgelock)
Packard Metri Pack Series Connector
(Note the green wire seals and blue Terminal
Position Assurance Connection)
Deutsch HD Series Connector
Deutsch DRC Series Connector
It is very important that connectors be properly
assembled. Use of the correct pin crimp tool is
required to ensure high quality terminations. The
manufacturer’s instructions must be followed as to
selection and use of crimp tools. Improper crimps
not only provide unreliable connections but can
damage the connector housing.
Troubleshooting Harnesses - For extensive
harness troubleshooting, a detailed schematic will
be required. Splice location details can be very
useful since problems do occur at splices.
The proper test adapters are recommended for
harness troubleshooting. Some examples of these
are shown in Section 2 concerning multimeters.
Use of these adapters will prevent harness
damage during testing.
The first item to perform during harness
troubleshooting is a physical inspection of the
harness for damage. Look for cut or frayed
conductors, melted insulation and conductors
pulled from connectors.
The next item to check is connector pin seating.
Ensure the connector pins in the circuit under test
are properly seated in the connector housing. A
tug on the wire should confirm this.
If the harness is not physically damaged and all
connector pins are seated, perform a continuity
check of the circuit conductors. The ohmeter
function of the multimeter can be used for this test.
Check to ensure there are not any ground
faults or conductor shorts to ground.
Finally, measure the signals on the circuit
under test. Start at the point of origin of the
signal and verify at as many points along the
harness as possible, ending at the termination
point.