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LUBRICATION AND PREVENTIVE MAINTENANCE INTERVALS
Item 18 – Oil Pressure
Under normal operation, oil pressure
is noted each time the engine is
started. In the event the equipment
has warning lights rather than pressure
indicators, the pressure should be
checked and recorded every 60,000
miles (96,000 km) for vehicle engines
or every 600 hours for stationary and
industrial engines.
Item 19 – Battery-Charging
Alternator
General Service Requirements
Terminals should be checked for
corrosion and loose connections
and wiring inspected for damage
and frayed insulation. Have wiring
repaired or replaced, as required.
Check torque on alternator mounting
bolts and bracketing every 15,000
miles (24,000 km) on coach engines or
every 300 hours on all other engines.
Retighten, if necessary.
Alternator Precautions
Precautions must be taken when
working on or around the alternator.
The diodes and transistors in the
alternator circuit are very sensitive
and can be easily destroyed.
68
DDC-SVC-MAN-0057 0305 Copyright © 2003 DETROIT DIESEL CORPORATION
To avoid injury from battery
explosion or contact with battery
acid, work in a well-ventilated
area, wear protective clothing,
and avoid sparks or flames
near the battery. Always
establish correct polarity before
connecting cables to the battery
or battery circuit. If you come in
contact with battery acid:
□ Flush your skin with water.
□ Apply baking soda or lime to
help neutralize the acid.
□ Flush your eyes with water.
□ Get medical attention
immediately.
1. Avoid grounding the output
terminal. Grounding an
alternator's output wire or
terminal (which is always "hot,"
regardless of whether or not
the engine is running) and
accidentally reversing the battery
polarity will result in equipment
damage.
2. Do not reverse battery
connections. This can also
cause damage.
3. Never disconnect the battery
while the alternator is operating.
All information subject to change without notice. (Rev. May 2004)
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