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Problem: After working some time, the unit stops through a shutdown switch.
Problem: Air and oil mist expelles from air filters immediately after stopping.
Problem: Compressor overheating.
Possible faults
Corrective actions
Engine oil pressure too low.
Refer to the engine instruction manual.
Compressor or engine overheating.
See corrective actions “Compressor overheating”.
Fuel tank contains insufficient fuel.
Fill fuel tank.
Low coolant level.
Top up cooling system.
Possible faults
Corrective actions
Check valve at element outlet.
Remove and inspect. Replace if necessary. Replace air filter elements and safety cartridges. Check the oil level
and add oil if necessary. Run the compressor for a few minutes, stop and recheck oil level.
Possible faults
Corrective actions
Insufficient compressor cooling.
Locate compressor away from walls; when banked with other compressors, leave space between them.
Oil cooler clogged externally.
Clean oil cooler. Refer to section Cleaning Coolers.
Oil cooler clogged internally.
Consult Atlas copco.
Oil filters clogged.
Replace oil filters.
Oil level too low.
Check oil level. Top up with recommended oil if necessary.
Thermostatic by-pass valve remains stuck in open position.
Remove valve and check for proper opening and closing. Replace if out of order.
Fan blade(s) broken.
Check and correct if necessary.
Oil separator element (OS) clogged.
Have element removed and inspected by an Atlas copco Service representative.
Summary of Contents for XAS 185 KDU T4F HOP
Page 2: ......
Page 14: ... 14 Main parts ...
Page 16: ... 16 Overview COMPRESSOR REGULATING SYSTEM LOAD CONDITION ...
Page 20: ... 20 Electrical system Circuit Diagram 1310 3200 51 ...
Page 21: ... 21 ...
Page 49: ... 49 Adjustments and servicing procedures ADJUSTMENT OF THE CONTINUOUS REGULATING SYSTEM ...
Page 57: ... 57 Altitude unit performance curve ...
Page 60: ... 60 ...
Page 61: ......
Page 62: ...www atlascopco com ...