TROUBLESHOOTING THE HMMWV - OD1616 - LESSON 2/TASK 1
o Test Number 03.
Display maximum value for next test.
o Test Number 04.
Display peak-to-peak value for next test.
Control tests 01, 02, 03, and 04 specify the action to be taken by
the next test only. A subsequent test will reset the control.
This test alternately measures engine
speed and a second parameter such as fuel pressure or alternator
voltage.
To initiate interleave, dial 01 into the TEST SELECT
switches and press and release the TEST button.
The prompting
message PASS will signal the mechanic to dial in a second test number
and again press and release the TEST button.
(2) Minimum Value (Test 02). This test displays the minimum value
measured during a test. To initiate a minimum value display, dial 02
into the TEST SELECT switches and press and release the TEST button.
The prompting message PASS will signal the mechanic to dial in the
desired test number and again press and release the TEST button. The
minimum value is displayed and updated whenever a lower minimum Value
is measured.
Entering 02 and the test number again will reset the
process and a new minimum value will be displayed.
(3) Maximum Value (Test 03). This test displays the maximum value
measured during a test. To initiate a maximum value display, dial 03
into the TEST SELECT switches and press and release the TEST button.
The prompting message PASS will signal the mechanic to dial in the
desired test number and again press and release the TEST button. The
maximum value is displayed and updated whenever a higher maximum is
measured.
Entering 03 and the test number again will reset the
process and a new maximum value will be displayed.
(4) Peak-to-Peak Value (Test 04). This test displays the peak-to-
peak value of 0-45 volts dc (no-go test number 89), 0-1500 Amps dc
(no-go test number 90) and battery Volts (go test 67).
To start a
peak-to-peak measurement, dial 04 into the TEST SELECT switches and
press the TEST button.
The prompting message PASS will signal the
operator to dial in one of the three test numbers (89, 90, 67) and
again press the TEST button.
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