Carlyle Compressor Reciprocating Compressor 06DM8086

Warning: This inspection requires trained personnel with PPE!

After 2 to 4 hours of operation, inspect compressor oil for discoloration and/or acidity.

Does the oil show signs of contamination?

If oil shows signs of contamination, replace oil and filter-driers and clean the suction strainer.

Select the type of refrigerant used

NOTE: When testing for moisture and acidity, be sure the test kit used is appropriate for the refrigerant (CFC, HCFC, or HFC) and the oil (mineral, alkylbenzene, or POE) in the system.

Carrier’s Total Test Kit is accurate for CFC and HCFC air-conditioning applications. If used with POE oils, Total Test Kit will indicate acid, but is not an accurate indicator of moisture.

Sign off on the initial 2 hours motor inspection

If oil stays clean and acid-free, the system is clean. If oil shows signs of contamination, follow the next steps.

If filter-drier or suction strainer is dirty or discolored, repeat steps 4-6 until system is cleaned.

Sign off on the daily compressor maintenance

Warning: This procedure is for trained personnel only

Are new fiber gaskets installed?

If no new fiber gaskets are installed, stop the procedure

Did the gear cap screws lose hold-down torque?

If the gear cap screws did not lose hold-down torque, stop the procedure

Enter the torque value after retorquing

Sign off on the gear cap screws maintenance

REMOVE, INSPECT AND REPLACE CYLINDER HEAD AND VALVE PLATE ASSEMBLY

To test for leaking discharge valves or blown cylinder head or valve plate gaskets:

Observe suction and discharge pressure equalization.

If valves are leaking or a gasket is blown, the pressure will equalize rapidly. Maximum allowable discharge pressure drop is 3 psi per minute after initial drop of 10 to 15 psi in first half minute. New reed valves may require 24 to 48 hour run-in time to seat completely. A compressor bank (head) with a blown gasket can also usually be detected by touch since the head temperature will normally be much hotter than a bank with good gaskets.

If there is an indication of loss of capacity and discharge valves are functioning properly, remove valve plate assembly and inspect suction valves.

NOTE: This test procedure is not applicable to compressors equipped with pressure actuated unloader valves due to rapid pressure equalization rate. Inspect suction and discharge valves by disassembling valve plate.

Disassemble cylinder heads by removing cylinder head bolts. Leave at least two bolts partially threaded to prevent any problems if refrigerant is accidently left in the compressor under pressure.

Warning: This maintenance check requires trained personnel with PPE!

Oil pressure tap located in the bearing head assembly?

Oil pump assembly contained in the pump end bearing head aluminum casting?

Pump end main bearing is a machined part of the casting?

Four (4) cap screws from the bearing head cover plate removed?

Oil feed guide vane and spring removed?

Two (2) drive segment cap screws from the end of the crankshaft removed?

Eight (8) cap screws holding the bearing head assembly to the crankcase removed?