TM 5-3895-373-20REFERENCE INFORMATIONThe electrical coil power circuits for the tow pointcylinders receive their ground through the towpoint movement switch. The circuits have a +12vdc applied whenever the ignition switch is on.The electrical coil ground circuit is completedonly when a tow point movement switch isplaced in the up or down position.Refer to paragraph 1.21.4 for an electricalcontrol system description for the tow pointcylinders.Open center top right and center top left accessdoors per TM 5-3895-373-10 to gain access totow point control valves.To avoid reversing polarity to the voltmeter,connect negative test lead to equipment groundand use positive lead to probe for voltage.Refer to the electrical system diagram at the endof the manual for equipment wiring details.After completing diagnostic checks, close centertop left and center top right access doors per TM5-3895-373-10.2-299
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