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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 connections
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.
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.
Problem
Possible faults
Corrective actions
1. Lamps (H1, H2) do not light up when
switching (S1) to ”I” and applying
lamp test.
a. Discharged or defective battery.
b. Loose battery cable(s) or oxidised terminals.
c. Loose connection or damaged wiring.
d. Contact switch (S1) defective.
e. Circuit breaker (F1) defective.
a. Check electrolyte level and charge battery. If no cells are
shorted and battery is discharged, trace cause and
correct.
b. Check and correct if necessary.
c. Check wiring and connections; correct if necessary.
d. With (S1) switched in ”I”, check voltage between earth
and each of the termninals of (S1) respectively. Voltage
must register at each of the terminals; if not, replace
(S1).
e. Replace circuit breaker.
2. General alarm lamp (H2) does not
light up when switching (S1) to ”I”;
lamp (H1) lights up when applying
lamptest.
a. Lamp (H2) blown.
b. Alternator (A)/regulator defective.
a. Replace lamp.
b. Disconnect the wire from alternator terminal D+ and
connect it to terminal D–. If (H1) lights up, replace the
alternator; if not, test (S1); see remedy 1d.
Содержание XAS 130 DD7 C3 APP
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