Problem Solving - Atlas Copco XAS 98 Kd WUX Instruction Manual

Problem solving

It is assumed that the engine is in good condition.
If it's not possible to solve the problem
with this problem solving table, please
consult Atlas Copco.
Problem
1. Lamp does not light up when turning
the start switch to position 1.
2. General alarm lamp does not light up
when turning the start switch to
position 2.
3. Engine does not start after turning (S1)
to position 1.
4. Starter motor cranks engine when
turning start switch to position 3, but
engine does not fire.
5. Engine is running, but shuts down
immediately after the start switch has
been released.
6. General alarm lamp remains alight for
over 5 seconds after starting.
7. Hour meter does not count running
time.
Possible faults
Discharged or defective battery.
Lamp (H2) blown.
a. Low battery output.
b. Main switch is OFF.
c. Fuel tank is empty.
Low battery output.
a. Start switch (S1) released too soon.
b. Insufficient engine oil pressure.
c. Fuel tank contains insufficient fuel.
a. Insufficient engine oil pressure or too high engine
coolant temperature.
b. Engine oil pressure switch, or compressor temperature
switch defective.
Hour meter defective.
Corrective actions
Check electrolyte level and charge battery.
Consult authorized technician/Atlas Copco.
a. See remedy 1.
b. Switch main switch to ON.
c. Refuel and prime fuel pump.
See 1.
a. Restart once. If the engine does not start, stop at once and
consult authorized technician/Atlas Copco.
b. Stop at once, consult authorized technician/Atlas Copco.
c. Fill fuel tank.
a. Stop at once, consult authorized technician/Atlas Copco.
b. Stop at once, consult authorized technician/Atlas Copco.
Consult authorized technician/Atlas Copco.
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