COUPLER A 5F4585 - Caterpillar

Table 1
Sales Model     Serial Number    
320C     S/N:SAH1001-1238    
322C     S/N:C3R1001-UP    
322C     S/N:LAR1001-UP    
324D     S/N:JKR1-178    
324D     S/N:JLS1-172    
324D     S/N:JGK1-128    
325C     S/N:M2K1001-UP    
325C     S/N:S3M1001-UP    
325D     S/N:C7K1-202    
325D     S/N:C9M1-137    
325D     S/N:C8L1-166    
330C     S/N:B1K1001-UP    
330C     S/N:B2L1001-UP    
330D     S/N:L2K1-221    
330D     S/N:E4K1-350    
330D     S/N:H3K1-353    
511     S/N:5111-UP    
521     S/N:5211-314    
522     S/N:5221-246    
532     S/N:5321-UP    
541     S/N:5411-211    
551     S/N:5511-116    
552     S/N:5521-145    
TK711     S/N:101245-UP    
TK721     S/N:102345-UP    
TK722     S/N:103445-UP    
TK732     S/N:104545-UP    
TK741     S/N:202225-UP    
TK751     S/N:301325-UP    
TK752     S/N:302425-UP    
1090     S/N:BZJ1120-UP    
1190     S/N:BZK1220-UP    
1190T     S/N:BZL1320-UP    
1290T     S/N:BZM1420-UP    The 284-4177 Tube Assembly is effective with the following machines.
Table 2
Sales Model     Serial Number    
320C     S/N:SAH1239-UP    
320D     S/N:BZF1-UP    
320D     S/N:GKS1-UP    
320D     S/N:EAX1-UP    
324D     S/N:JKR179-UP    
324D     S/N:JLS173-UP    
324D     S/N:JGK129-UP    
325D     S/N:C7K203-UP    
325D     S/N:C9M138-UP    
325D     S/N:C8L167-UP    
330D     S/N:L2K222-UP    
330D     S/N:E4K351-UP    
330D     S/N:H3K354-UP    
521     S/N:521315-UP    
522     S/N:522247-UP    
541     S/N:541212-UP    
551     S/N:551117-UP    
552     S/N:552146-UP    Procedure to Install the New Tube Assembly
Evacuate the refrigerant. Refer to Testing and Adjusting, SENR5664, "Air Conditioning and Heating R-134a for All Caterpillar Products".
Illustration 1 g01382058
(1) 284-4177 Tube Assembly
Replace the existing 251-6772 Tube Assembly with 284-4177 Tube Assembly (1) .
Recharge the refrigerant system. Refer to Testing and Adjusting, SENR5664, "Air Conditioning and Heating R-134a for All Caterpillar Products".