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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 Possible faults Corrective actions
1. Lamp does not light up when turning
the start switch to position 1.
Discharged or defective battery. Check electrolyte level and charge battery.
2. General alarm lamp does not light up
when turning the start switch to
position 2.
Lamp (H2) blown. Consult authorized technician/Atlas Copco.
3. Engine does not start after turning (S1)
to position 1.
a. Low battery output.
b. Main switch is OFF.
c. Fuel tank is empty.
a. See remedy 1.
b. Switch main switch to ON.
c. Refuel and prime fuel pump.
4. Starter motor cranks engine when
turning start switch to position 3, but
engine does not fire.
Low battery output. See 1.
5. Engine is running, but shuts down
immediately after the start switch has
been released.
a. Start switch (S1) released too soon.
b. Insufficient engine oil pressure.
c. Fuel tank contains insufficient fuel.
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.
6. General alarm lamp remains alight for
over 5 seconds after starting.
a. Insufficient engine oil pressure or too high engine
coolant temperature.
b. Engine oil pressure switch, or compressor temperature
switch defective.
a. Stop at once, consult authorized technician/Atlas Copco.
b. Stop at once, consult authorized technician/Atlas Copco.
7. Hour meter does not count running
time.
Hour meter defective. Consult authorized technician/Atlas Copco.
Box_2-2.book Page 37 Friday, October 27, 2017 3:48 PM