Atlas Copco XA146 Dd, Инструкция по эксплуатации

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(continuation) g. Oil separator element clogged.
h. Unloading valve not completely open.
i. Safety valve leaking.
j. Compressor element out of order.
g. Have element removed and inspected by an
Atlas Copco Service representative.
h. Check and repair unloading assembly.
i. Remove and inspect. Replace if not airtight
after reinstallation.
j. Consult Atlas Copco.
12. No air output. a. Coupling/gearbox failure. a. Consult Atlas Copco.
13. Compressor does not
unload and engine keeps
running at max. speed when
closing the air outlet valves,
safety valve blows.
a. Regulating valve incorrectly set or defective.
b. Air leaks in regulating system.
c. Speed regulator malfunctioning.
d. Unloading valve stuck.
a. Adjust or repair regulating valve.
b. Check hoses and their fittings. Stop leaks;
replace leaking hoses.
c. Remove, dismantle and inspect piston ring
and it’s O-ring. Replace worn or defective
parts.
d. Check unloader assembly.
14. Working pressure rises
during operation and causes
safety valve to blow.
a. Regulating valve incorrectly set or defective.
b. Air leaks in regulating system.
c. Speed regulator malfunctioning.
d. Unloading valve stuck.
e. Safety valve defective.
a. Adjust or repair regulating valve.
b. Check hoses and their fittings. Stop leaks;
replace leaking hoses.
c. Remove, dismantle and inspect piston ring
and it’s O-ring. Replace worn or defective
parts.
d. Check unloader assembly.
e. Check safety valve; consult Atlas Copco.
15. After working some time,
the unit stops through a
shutdown switch.
a. Fuel tank contains insufficient fuel.
b. Air in fuel system, or insufficient fuel supply.
c. Engine oil pressure too low.
d. Engine temperature too high.
e. Compressor temperature too high.
f. Low coolant level.
a. Fill fuel tank.
b. Check filters and hoses for leaks, dirt and
bends.
c. Refer to the engine instruction manual.
d. See corrective actions 17.
e. See corrective actions 18.
f. Top up cooling system.
16. Air and oil mist expelles
from air filters immediately
after stopping.
a. Unloader valve jammed.
b. Wrong oil type (without foam-retarding
additives).
a. Check and repair valve.
b. Consult Atlas Copco.
17. Engine overheating. a. Insufficient engine cooling.
b. Water cooler clogged externally.
c. Water cooler clogged internally.
d. Cooling fan defective.
a. Relocate compressor.
b. Clean water cooler. Refer to section 1.6 .
c. Consult Atlas Copco.
d. Replace fan.
18. Compressor overheating. a. Insufficient compressor cooling.
b. Oil cooler clogged externally.
c. Oil cooler clogged internally.
d. Oil filters clogged.
a. Locate compressor away from walls; when
banked with other compressors, leave space
between them.
b. Clean oil cooler. Refer to section 1.6 .
c. Consult Atlas Copco.
d. Replace oil filters.