TM 5-3805-248-23-1
ELECTRICAL GENERAL MAINTENANCE INSTRUCTIONS - CONTINUED
0018 00
SPLICING WIRES
NOTE
The selection of crimping tool and type of splice connectors is optional. High quality splice connectors can
be expected to last the life of the machine.
1.
Inspect each end of wire (32). Trim back insulation and metal strands (33) of wire as necessary to ensure integrity of
wire.
2.
Strip each end of wire (32) to expose length of metal strands (33) to suit type of splice connector (34) used.
NOTE
Perform steps 3 and 4 at each end of splice connector.
3.
Insert metal strands (33) of wire (32) fully into splice connector (34).
4.
Cut length of insulation sleeving (35) at least 3/4 in.
33
34
32
32 33
35
(19 mm) longer than length of splice connector (34)
and slide insulation sleeving over one wire (32).
5.
Securely crimp splice connector (34) to metal strands
(33) of wire (32).
6.
Center insulation sleeving (35) over splice connector
394-1745
(34) and use heat gun to shrink insulation sleeving.
ELECTRICAL GROUND POINTS
WARNING
Although battery disconnect switch must be ON to test electrical circuit voltage, turn battery disconnect
switch to OFF before performing resistance tests or replacing parts. Failure to follow this warning may
result in injury to personnel and damage to parts or equipment.
Many electrical problems are the result of poor ground connections. Ensure that ground connections are good by per-
forming the following steps:
1.
Remove screw, lockwasher, nut, etc. connecting ground wire terminal to machine ground point.
2.
If necessary, clean mounting hardware, wire terminal and ground point with detergent and a scrub brush.
3.
Remove any rust or corrosion from ground point with a wire brush and abrasive cloth.
4.
Replace defective mounting hardware and wire terminal as necessary.
5.
Install wire terminal to ground point with screw, lockwasher, nut, etc. and tighten securely.
MULTIMETER USAGE
General. A multimeter is used to troubleshoot the electrical system of the machine. The multimeter ohms scale is used
1.
to test for continuity, shorts and resistance. The multimeter voltmeter scale is used to test voltage levels at any point in
the electrical system.
2.
Continuity Tests. Continuity tests are performed to check for breaks in a circuit (such as a fuse, switch, light bulb con-
nector or electrical wiring).
0018 00-12
