Carlyle Compressor Reciprocating Compressor 06DM337FDC367ARP

If oil stays clean and acid-free, the system is clean.

Does oil show signs of contamination?

If oil shows signs of contamination, change oil, change filter-drier, and clean suction strainer.

Is filter-drier or suction strainer dirty or discolored?

If filter-drier or suction strainer is dirty or discolored, repeat this step until system is cleaned.

Sign off on the daily compressor maintenance

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.

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.

Select the type of refrigerant used

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

Warning: This procedure requires trained personnel with PPE!

Is the application high compression ratio?

If the application is not high compression ratio, stop the procedure

Choose the type of gasket installed

If Metal Core gasket is installed, stop the procedure

Did you retorque the gear cap screws after 24 hours?

Sign off on the gear cap screws maintenance

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 this casting?

To disassemble, first remove four (4) cap screws from the bearing head cover plate and remove the oil feed guide vane and spring.

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

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

Bearing head assembly removed by pulling forward?

Bearing surfaces inspected for evidence of wear or damage?

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.