TM 5-2420-230-24-1
12-27. GENERAL WIRING HARNESS REPLACEMENT.
This Task Covers:
a. Inspection
b. Removal
c. Installation
d. Follow-On Maintenance
INITIAL SETUP
Test Equipment
Equipment Conditions
None
TM or Para
Condition Description
Vehicle positioned on level
ground.
Tools and Special Tools
Tool kit, general mechanics, Item 38, Appendix B
Parking brake applied.
Engine shut OFF.
Electrical master switch OFF.
Materials/Parts
Tags, identification, Item 63, Appendix C
"Do Not Operate" tag attached
Ties, cable, Item 68, Appendix C
to ignition switch.
Hood raised (as required).
Personnel Required
Drawings Required
MOS 62B, Construction Equipment Repairer
None
References
Estimated Time to Complete
FO-3, Electrical schematic
Refer to MAC in Appendix B
a. Inspection.
Inspect wiring harnesses for the following defects:
Loose or broken wires
Water damage
Damaged insulation
Crushed
Faulty or loose connectors
Evidence of overheating
b. Removal.
Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry or tools contact positive electrical
circuits, a direct short may result. Damage to equipment and injury or death to personnel may occur.
NOTE
Remove cable clamps or mounting hardware as required.
Tag all wires and note their positions before removal.
Remove cable ties as required.
To gain access to harnesses, some components may need to be removed.
Ensure all wires are disconnected and cleared before removal.
All harnesses are removed and installed the same way.
(1)
Disconnect connectors or plugs, as required.
(2)
Remove harness from vehicle.
Change 1