the charging system. The drive belt(s) should be checked and
adjusted after each 50 hours of operation or weekly. The
alternator belt(s) should deflect 1/4 inch (6.35 mm) with six
pounds (2.7 kg) of force.
CAUTION: (Detroit Diesel Only) Replace both alternator drive
belts when one or both needs replacing.
4-39. Periodically inspect all wiring for: Proper routing, loose
terminal connections, cracks, wear, faulty insulation, brittleness,
and that they are free from oil and grease.
components should be connected per the schematic drawing
CAUTION: Do not use a wire smaller than the original factory