ENGINE AR-CORE 5313149 - Caterpillar

Landfill Compactor:
816B (S/N: 15Z1-UP)
826C (S/N: 87X1-UP)
Soil Compactor:
825C (S/N: 86X1-UP)
Excavator:
225 (S/N: 51U1-UP)
245 (S/N: 82X1-UP)
325 (S/N: 2SK1-UP)
Motor Grader:
120G (S/N: 87V1-UP)
12G (S/N: 3WC1-UP; 61M1-UP)
130G (S/N: 74V1-UP)
140G (S/N: 5MD1-UP; 72V1-UP; 13W1-UP)
14G (S/N: 96U1-UP)
16G (S/N: 93U1-UP)
Off-Highway Truck/Tractor:
768C (S/N: 02X1-UP)
773 (S/N: 63G1-UP)
776 (S/N: 14H1-UP)
776B (S/N: 6JC1-UP)
777B (S/N: 4YC1-UP)
777D (S/N: AGC1-UP)
789 (S/N: 9ZC1-UP)
789C (S/N: 2BW1-UP)
793 (S/N: 3SJ1-UP)
793B (S/N: 1HL1-UP)
793C (S/N: 4AR1-UP)
Track-Type Loader:
943 (S/N: 31Y1-UP; 04Z1-UP)
953 (S/N: 76Y1-UP; 20Z1-UP)
973 (S/N: 86G1-UP)
977L (S/N: 14X1-UP)
Track-Type Tractor:
D10 (S/N: 84W1-UP)
D10N (S/N: 2YD1-UP)
D11N (S/N: 74Z1-UP)
D5H LGP (S/N: 1DD1-UP)
D6D (S/N: 04X1-UP; 05X1-UP)
D6H LGP (S/N: 3YG1-UP)
D6HSeries II (S/N: 2KD1-UP)
D7G (S/N: 35N1-UP; 92V1-UP)
D7H (S/N: 5BF1-UP; 79Z1-UP; 80Z1-UP)
D8K (S/N: 76V1-UP; 77V1-UP)
D8L (S/N: 7JC1-UP; 53Y1-UP)
D9L (S/N: 14Y1-UP)
D9N (S/N: 1JD1-UP)
Wheel Dozer:
824C (S/N: 85X1-UP)
834B (S/N: 92Z1-UP)
Wheel Loader:
936E (S/N: 33Z1-UP)
950 (S/N: 81J1-UP)
950E (S/N: 22Z1-UP; 65R1-UP)
950FSeries II (S/N: 2LM1-UP)
966E (S/N: 35S1-UP; 99Y1-UP)
980B (S/N: 89P1-UP)
980C (S/N: 13B1-UP; 63X1-UP)
988B (S/N: 50W1-UP)
992C (S/N: 49Z1-UP)
Wheel Tractor-Scraper:
613B (S/N: 38W1-UP)
621B (S/N: 45P1-UP)
623B (S/N: 46P1-UP)
633D (S/N: 25W1-UP)
ReferenceTesting and Adjusting, SENR5664, "Air Conditioning and Heating R-134a for All Caterpillar Products", "Refrigerant Compressor - Test"ReferenceTesting and Adjusting, SENR5664, "Air Conditioning and Heating R-134a for All Caterpillar Products", "Refrigerant System - Charge"ReferenceTesting and Adjusting, SENR5664, "Air Conditioning and Heating R-134a for All Caterpillar Products", "Refrigerant Leakage - Test"ReferenceTesting and Adjusting, SENR5664, "Air Conditioning and Heating R-134a for All Caterpillar Products", "Performance Checks for the Air Conditioning System"ReferenceTesting and Adjusting, SENR5664, "Air Conditioning and Heating R-134a for All Caterpillar Products", "System Contamination and Flush Procedure"The air conditioning compressor is often misdiagnosed as the root cause of the failure of the air conditioning system. The test for the refrigerant compressor that is referenced above should be performed in order to verify that the refrigerant compressor has failed. Before you replace the air conditioning compressor, perform the following checks on the air conditioning system.
Check the flow of air through the condenser and through the evaporators.
Check the fresh air filters and check the recirculation air filter.
Check that the input voltage to the compressor is within the specifications. Refer to Testing and Adjusting, SENR5664, "Air Conditioning and Heating R-134a for All Caterpillar Products", "Refrigerant Compressor - Test".
Check that the resistance to the compressor coil is within the specifications. Refer to Testing and Adjusting, SENR5664, "Air Conditioning and Heating R-134a for All Caterpillar Products", "Refrigerant Compressor - Test".
Check that the alignment of the belt is correct and that the belt is correctly tensioned.
Check that the compressor shaft rotates without binding.
Check that the refrigerant charge for the air conditioning system is within the specifications. Refer to Testing and Adjusting, SENR5664, "Air Conditioning and Heating R-134a for All Caterpillar Products", "Refrigerant Compressor - Test".
Check the pressure at the suction port of the air conditioning compressor for low pressure. Refer to Testing and Adjusting, SENR5664, "Air Conditioning and Heating R-134a for All Caterpillar Products", "Performance Checks for the Air Conditioning System".
Check the pressure at the discharge port of the air conditioning compressor for high pressure. Refer to Testing and Adjusting, SENR5664, "Air Conditioning and Heating R-134a for All Caterpillar Products", "Performance Checks for the Air Conditioning System".The following conditions can cause the air conditioning compressor to fail.Low refrigerant charge