BOOM ELECTRICAL CABLE TEST/REPAIR/REPLACE

TM 10-3930-673-20-2

8-50. BOOM ELECTRICAL CABLE TEST/REPAIR/REPLACE

This Task Covers:

a. Test

c. Repair

b. Removal

d. Installation

INITIAL SETUP

Materials/Parts (Cont)

Tools and Special Tools

Tie Wraps (Item 40, Appendix C)

Tool Kit, General Mechanic's: Automotive

Lockwashers (2)

(Item 18, Appendix F)

Lockwashers (4)

Lockwashers (2)

Test Equipment

Rope, 25 ft

Multimeter, Digital (Item 9, Appendix F)

Personnel Required

Materials/Parts

Two

Electrical Tape (Item 39, Appendix C)

Tags (Item 38, Appendix C)

a. Test.

NOTE

Failure of an electrical device to function is more likely due to a faulty switch or faulty device rather

than to a broken wire. Do not assume that a broken wire exists until related electrical device and

actuator have been checked.

(1)

Inspect wires for poor connections at terminals, cuts, or other defects.

(2)

Check wire continuity to determine if hidden breaks exist.

(a)

Use electrical schematic to trace path of wire (refer to FO-1).

(b)

Disconnect negative battery cable (Para 8-42).

(c)

Connect multimeter leads to each end of wire.

(d)

An infinite resistance reading indicates a broken wire.

(e)

Connect negative battery cable (Para 8-42).

b. Removal.

NOTE

If an individual wire in a wire harness is broken, it is not necessary to replace entire wire harness (refer

to c. Repair below).

(1)

Start engine (TM 10-3930-673-10). Raise forks approximately one foot off ground. Stop engine.

(2)

Disconnect negative battery cable (Para 8-44).

Change 1 8-159