Atlas Copco XAS 185 CD7 T4, Инструкция по эксплуатации, Страница: 34 / 40

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5. Starter motor cranks engine when Switching S1
to position 3, but engine does not fire.
a. Switch (S1) defective,
b. Fuel solenoid (Y1) defective.
c. Low battery output.
d. Air in fuel system
a. See remedy 4b.
b. Check solenoid and its valve; correct or replace as necessary.
c. See 1a.
d. Use primer bulb to prime fuel system
6. Engine fires but general alarm lamp (H2)
remains alight; compressor stops when releasing
(S1).
a. Alternator drive belt broken or slipping,
b. Alternator/regulator defective. a. Check and correct as necessary.
b. Have assembly repaired.
7. Engine is running but shuts down immediately
after S1 has been released.
a.Override switch released too soon.
b. Insufficient engine oil pressure.
c. Fuel tank contains insufficient fuel.
d. Engine oil pressure shutdown switch, engine temperature
switch or compressor temperature switch defective. a. Release switch after engine oil pressure has built up to above
the minimum allowed value.
b. Stop at once, consult the engine Instruction manual.
c. Fill fuel tank.
d. Remove and test switches. Replace if out of order.
8. General alarm lamp (H2) remains alight for over
5 seconds after starting.
a. Insufficient engine oil pressure or too high engine coolant
temperature.
b. Engine oil pressure switch (S3), or compressor tempera
ture switch (S5) defective.
c. Relay (K1) defective.
a. Stop at once, consult Engine Operation Manual.
b. Stop at once, test switches, replace as necessary.
c. Replace (K1).
9. Hour meter does not count running time. a. Hour meter defective, a. Replace.
10. Compressor does not unload and engine keeps
running at maximum speed when closing the
air outlet valves; safety valve blows.
a. Air leaks in regulating system.
b. Regulating valve (RV) incorrectly set or defective.
c. Unloading valve (UV) or its actuating piston stuck.
a. Check and repair.
b. Adjust or repair regulating valve; see section Adjustment of
the Continuous Regulating System.
c. Repair unloading valve assembly.
11. Compressor capacity or pressure below
normal,
a. Air consumption exceeds capacity of compressor.
b. Choked air filter element (AF).
c. Unloading valve (UV) not completely open.
d. Engine does not run at maximum speed.
e. Oil separator element (OS) clogged.
a. Check equipment connected.
b. Service air filter element (AF).
c. Speed regulation cable maladjusted; see section Adjustment
of the Continuous Regulating System.
d. Check the maximum speed, service the fuel filter.
e. Have element removed and inspected by an Atlas Copco
Service representative.
12. No air output. a. Drive coupling broken. a. Consult Atlas Copco.
13. Pressure rises during operation and causes
safety valve to blow.
a. See faults 10.
b. Safety valve (SV) opens too soon.
a. See remedies 10.
b. Replace safety valve; Consult Atlas Copco
Problem Possible Faults Corrective Action