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XAHS 146 Dd - XATS 156 Dd - XA(S) 186 Dd - XAVS 166 Dd - XAHS 186 Dd
Problem
Possible faults
Corrective actions
11. 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. Unloading valve stuck.
a. Check and, if necessary consult Atlas
Copco.
b. Check hoses and their fittings. Stop leaks
and, if necessary consult Atlas Copco.
c. Check and, if necessary consult Atlas
Copco.
12. 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. Unloading valve stuck.
d. Safety valve defective.
a. Check and, if necessary consult Atlas
Copco.
b. Check hoses and their fittings. Stop leaks
and, if necessary consult Atlas Copco.
c. Check and, if necessary consult Atlas
Copco.
d. Check safety valve; consult Atlas Copco.
13. 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 15.
e. See corrective actions 16.
f.
Top up cooling system.
14. 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, if necessary consult Atlas
Copco.
b. Consult Atlas Copco.
15. Engine overheating.
a. Insufficient engine cooling.
b. Engine coolant cooler clogged externally.
a. Relocate compressor.
b. Clean engine coolant cooler. Refer to
section
4.7
.
16. Compressor overheating.
a. Insufficient compressor cooling.
b. Oil cooler clogged externally.
c. Oil level too low.
a. Locate compressor away from walls; when
banked with other compressors, leave space
between them.
b. Clean oil cooler. Refer to section
4.7
.
c. Check oil level. Top up with recommended
oil.
17. After working for some
time, the unit stops for no
apparent reason.
a. Air in fuel system, or insufficient fuel supply.
a. Check filters and hoses for leaks, dirt and
bends.
Содержание XA(S) 186 Dd
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