2.Unplugthe48Vdcbatterydisconnecttopreventunexpectedcuttingunitoperation.RefertoConnecting
andDisconnectingthe48VdcBatterySystem(page19).
3.DisconnectmainharnessconnectorsP48andP49fromthecuttingreelmotorcableconnectorsmounted
onthetractionunit.
4.Inspectthe2cuttingreelmotorcableconnectorsandthe2mainharnessconnectorsfordamage,
corrosion,debris,andproperalignmentofthepinsinsidetheconnectors.
Pass
Thewiringinspectionpassed.GotoStep8.
Fail
Oneormoreoftheinspectionchecksfailed.Repairorreplacethewornordamagedparts.Goto
ReturningtheMachinetoService(page22)andfollowthestepslisted.
Step8:Measure48VdcpowerinmainharnessconnectorsP48and
P49.
Note:ConnectordiagramsareavailableinStep9.
1.Verifythattheengineisshutoff.
2.DisconnectmainharnessconnectorsP48andP49fromthecuttingreelmotorcableconnectors.
3.RotatetheignitionkeytotheONposition.
4.Measurethevoltagebetweenpins1and2ofconnectorP49.Thereadingshouldbe48Vdc.
5.MeasurethevoltagebetweenP48pin1andP49pin2.Thereadingshouldbe48Vdc.
6.RotatetheignitionkeytotheOFFposition.
Pass
Thevoltagereadingsweregood.GotoStep10.
Fail
Thevoltagereadingswerenotgood.GotoStep9.
Step9:Testthepowerandgroundwiringinmainharnessconnectors
P48andP49.
ThesearediagnosticstepstohelpisolateproblemsidentiedinStep8.Useamultimetertotesttheresistance
betweenthefollowingpairsoflocations:
LocationHarness
Connector
Pin
Wire
Color
Expected
Reading
ConnectorGraphic
1MainP491Red
2MainP373Red
Lessthan
2ohms
244