TM 5-3800-205-23-2
ELECTRICAL GENERAL MAINTENANCE INSTRUCTIONS - CONTINUED
0003 00
RELAY INSPECTION AND TEST
1.
Inspecting Relays.
a.
Check for bent or damaged pins.
b.
Check for burned or damaged relay case.
2.
Testing Relays.
NOTE
When testing relays, always refer to the circuit diagram printed or stamped on relay case.
a.
Using a multimeter, check for continuity across relay coil.
b.
Using a multimeter, check open or closed contacts within relay.
WIRING HARNESS REPLACEMENT
NOTE
Wiring harnesses are composed of multiple wires enclosed in a protective wire loom with one or more
connectors of varying configurations at each end. When damaged, wiring harnesses can be repaired by
replacing connectors or by splicing wires. If damage is extensive, entire wiring harness should be
replaced.
Perform the following steps to replace a typical wiring harness. Refer to electrical schematics in fold-
outs at back of manual for assistance.
Tag wire leads and connectors to aid in installation.
1.
Provide access to wiring harness, as necessary, by removing components.
2.
Place battery disconnect switch in OFF position.
3.
Remove mounting hardware (nut, locknut, lockwasher, screw, etc.) or disconnect connector(s) of wiring harness to dis-
connect wiring harness from electrical component at one end of wiring harness.
4.
Trace length of wiring harness and remove tie straps and clamps, as necessary. Discard tiedown straps.
5.
Repeat step 3 at other end of wiring harness.
6.
Remove wiring harness from machine.
NOTE
Ensure wire loom is installed over wiring harness as required prior to installation.
7.
Position wiring harness to machine.
8.
Connect connector(s) of wiring harness or install mounting hardware (nut, locknut, lockwasher, screw etc.) to connect
wiring harness to electrical component at one end of wiring harness.
9.
Repeat step 8 at other end of wiring harness.
10.
Install clamps and new tie straps along length of wiring harness.
11.
Place battery disconnect switch in ON position.
12.
Install components, as necessary.
END OF WORK PACKAGE
0003 00-10
