2011/11/07 The Swing Bearing In the Bearing And Gear Group Is Improved on Certain 330D, 345C and 345D Excavators and 345C and 345D Mobile Hydraulic Power Units {7063} Caterpillar

Excavator:

330D (S/N: E4K1-UP; H3K1-UP)

345C (S/N: TBA1-UP; FPC1-UP; MDC1-UP; ESD1-UP; WDE1-UP; TDG1-UP; GBH1-UP; GPH1-UP; TAJ1-UP; GCL1-UP; S5M1-UP; RFN1-UP; DHP1-UP; JAR1-UP; ELS1-UP; LYS1-UP; PJW1-UP; BWY1-UP)

345D (S/N: DPA1-UP; BYC1-UP; HLC1-UP; RGD1-UP; RAE1-UP; YEE1-UP; NEG1-UP; RGG1-UP; EEH1-UP; KFH1-UP; RAJ1-UP; MLK1-UP; NLM1-UP; JKN1-UP; GYR1-UP; L5R1-UP; FES1-UP; PBT1-UP; BYW1-UP; LKY1-UP)

Mobile Hydraulic Power Unit:

345C MHPU (S/N: NRF1-UP; B6N1-UP)

345D MHPU (S/N: P5D1-UP)

Service Magazine SEPD1208, 24 November 2010, "The Swing Bearing In the Bearing And Gear Group Is Improved on Certain 330D, 345C and 345D Excavators and 345C and 345D Mobile Hydraulic Power Units". Disregard this article. See the article that follows.

Description of Change: The swing bearing has been improved. The height and outer diameter of the outer race assembly have been increased making the swing bearing more durable.

Adaptable To: The new 353-0490 Swing Gear and Bearing Gp is a direct replacement for the former 227-6052 Swing Gear and Bearing Gp. Table 1 lists the required parts. Table 2 lists the effectivity and adaptability of the new 353-0490 Swing Gear and Bearing Gp.

Table 1

Required Parts
Qty	New Part Number	Description	Former Part Number
70	112-1532	Bolt
54	112-1533	Bolt	141-6373
1	333-3081	Tube As	227-6055
1	333-3084	Tube As	227-6054
1	353-0490	Swing Gear and Bearing Gp	227-6052
54	353-0518	Spacer	093-0020
70	7Y-1507	Spacer

Table 2

Effectivity and Adaptability of the New 353-0490 Swing Gear and Bearing Gp
Sales Model	Effectivity	Adaptability
330D	S/N:E4K1508-UP	S/N:E4K1-1507
	S/N:H3K1417-UP	S/N:H3K1-1416
345C	S/N:TBA453-UP	S/N:TBA1-452
	S/N:MDC243-UP	S/N:MDC1-242
	S/N:ESD246-UP	S/N:ESD1-245
	S/N:WDE169-UP	S/N:WDE1-168
	S/N:TDG413-UP	S/N:TDG1-412
	S/N:GBH207-UP	S/N:GBH1-206
	S/N:TAJ381-UP	S/N:TAJ1-380
	S/N:GCL280-UP	S/N:GCL1-279
	S/N:RFN187-UP	S/N:RFN1-186
	S/N:DHP464-UP	S/N:DHP1-463
	S/N:JAR331-UP	S/N:JAR1-330
	S/N:ELS180-UP	S/N:ELS1-179
	S/N:PJW2443-UP	S/N:PJW1-2442
	S/N:BWY349-UP	S/N:BWY1-348
345C L	S/N:FPC147-UP	S/N:FPC1-146
	S/N:GPH538-UP	S/N:GPH1-537
	S/N:S5M317-UP	S/N:S5M1-316
	S/N:LYS191-UP	S/N:LYS1-190
345C L MHPU	S/N:NRF1-UP
	S/N:B6N1-UP
345D	S/N:NEG506-UP	S/N:NEG1-505
	S/N:FES165-UP	S/N:FES1-164
	S/N:BYW1-UP
345D L	S/N:DPA193-UP	S/N:DPA1-192
	S/N:BYC154-UP	S/N:BYC1-153
	S/N:HLC127-UP	S/N:HLC1-126
	S/N:RDC1-UP
	S/N:RGD1-UP
	S/N:RAE1-UP
	S/N:YEE636-UP	S/N:YEE1-635
	S/N:RGG1-UP
	S/N:EEH1043-UP	S/N:EEH1-1042
	S/N:KFH254-UP	S/N:KFH1-253
	S/N:RAJ385-UP	S/N:RAJ1-384
	S/N:MLK184-UP	S/N:MLK1-183
	S/N:JKN1-UP
	S/N:GYR1-UP
	S/N:L5R1-UP
	S/N:PBT452-UP	S/N:PBT1-451
	S/N:RBT1-UP
345D L VG	S/N:NLM1-UP
	S/N:LKY420-UP	S/N:LKY1-419
345D MHPU	S/N:P5D1-UP