SPOOL-DIFFERENTIAL 6Y2279 - Caterpillar

TECHNICAL INFORMATION BULLETIN JULY 16, 2003
EXCAVATORS 312C (BNN, FDS), 312C L (CBA, CBT), 315C (AKE, CFB), 315C L (ANF, CFT, CJC), 318C (AWS, BTG, DAH, FAA, GPA, MDY), 320C (AMC, BCN, BEF, DBG, EGA, FBC, JPL, MAB, RAW), 320C L (ANB, BBC, BDE, GAC, GLA, PAB), 32OC S (BBL, EGL), 320C U (CLM, MAC), 320C LN (BEA, JTG), 320C LU (CLZ, PAC), 320C FMHW (BGB),
320C FMST (BKK), 322C (BLP, BNY, BRN, DAA), 322C L (BFX, BGR, BKM, BMX, FED, MAR), 322C LN (BFK, EMR), 325C (AMH, BKH, BKW, BLA, DTF, JLD), 325C L (BLX, BMM, BTD, CRB, JLC), 325C LN (CSJ), 330C (BTM, GAG, JAB, JCD, MCA), 330C L (CAP, GKX, HAA, JNK, KDD, MKM, RBH),
330C LN (CGZ), EXCAVATORS
Component Code(s) 1802, 7320SUBJECT: THE CLUTCH IN THE COMPRESSOR MAY FAIL IF THE REFRIGERANT
CHARGE EXCEEDS SPECIFICATIONS
PROBLEM:
An over charge of refrigerant in the air conditioning system may cause the clutch in the 176-1895 Compressor Group to malfunction.
SOLUTION:
The correct amount of refrigerant must be charged in the air conditioning system. Refer to Specifications, RENR3763, "312C with High Ambient Cooling Package, 315C, 318C, 320C, 322C, 325C, and 330C Excavators Air Conditioning and Heating" for the correct amount of refrigerant for your machine.
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