2007/06/18 Caterpillar

An Improved Tube Assembly Is Now Used for the Air Conditioning System {7320}

Usage:

Excavator: 320C (S/N: SAH1-UP) 320D (S/N: BZF1-UP; GKS1-UP; EAX1-UP) 322C (S/N: C3R1-UP; LAR1-UP) 324D (S/N: JGK1-UP; JKR1-UP; JLS1-UP) 325C (S/N: M2K1-UP; S3M1-UP) 325D (S/N: C7K1-UP; C8L1-UP; C9M1-UP) 330C (S/N: B1K1-UP; B2L1-UP) 330D (S/N: E4K1-UP; H3K1-UP; L2K1-UP)
Track Feller Buncher: 511 (S/N: 5111-UP) 521 (S/N: 5211-UP) 522 (S/N: 5221-UP) 532 (S/N: 5321-UP) 541 (S/N: 5411-UP) 551 (S/N: 5511-UP) 552 (S/N: 5521-UP) TK711 (S/N: 1011-UP) TK721 (S/N: 1021-UP) TK722 (S/N: 1031-UP) TK732 (S/N: 1041-UP) TK741 (S/N: 2021-UP) TK751 (S/N: 3011-UP) TK752 (S/N: 3021-UP) 1090 (S/N: BZJ1-UP) 1190 (S/N: BZK1-UP) 1190T (S/N: BZL1-UP) 1290T (S/N: BZM1-UP)

Description of Change: A new tube assembly is available to improve the performance of the air conditioning system. The new tube assembly will improve the performance of the air conditioning system.

Adaptable To: Replace the existing 251-6772 Tube Assembly with the 284-4177 Tube Assembly.

The 284-4177 Tube Assembly is adaptable to the following machines.

Show/hide table

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.

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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