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Problem solving
It is assumed that the engine is in good condition and that there is adequate fuel
flow to the filter and injection equipment.
Make sure that the wires are not damaged and that they are clamped tight to their
terminals.
Alternator precautions
1. Never reverse the polarity of the battery or the alternator.
2. Never break any alternator or battery connection while the engine is running.
3. When recharging the battery, disconnect it from the alternator. Before using
booster cables to start the engine, be sure of the polarity and connect the
batteries correctly.
4. Never operate the engine without the main or voltage sensing cables connected
in the circuit.
FAULT SITUATIONS AND PROTECTIVE DEVICES
A fault involving the engine, either oil pressure (too low), coolant temperature
(too high), will always and immediately cause the engine to cut out and the
alarm lamp H1 will light up. By doing some simple checks, the cause of the
engine failure can be determined: low oil level, clogged-up cooler.
Alarm lamp H2 will light up. The alarm lamp will stay on, until the compressor
has been restarted (start switch to position 3), or the contact is turned off (start
switch to position 0; also when, due to cooling off, the thermocontact has closed
again (= memory function).
An electrical fault must be traced by an
electrician.
If it’s not possible to solve the problem
with this problem solving table, please
consult Atlas Copco.
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