2011/08/29 Caterpillar

Track-Type Tractor:

D3K LGP (S/N: JTD1-UP)

D3K (S/N: FFF1-UP)

D3K LGP (S/N: LLL1-UP)

D4K XL (S/N: MMM1-UP)

D4K LGP (S/N: RRR1-UP)

D5K (S/N: JLF1-UP)

D5K XL (S/N: WWW1-UP)

D5K LGP (S/N: YYY1-UP)

Description of Change: The improved track adjuster has a new fuse plate that is designed to bend on high pressure to protect other components. The fuse plate and the O-ring seal must be replaced after every high-pressure event.

The improved track adjuster has a smaller plug, that will better withstand on high pressure. An improved fill valve guard is incorporated into the new track adjuster group which is less susceptible to bending and twisting.

Adaptable To:

Illustration 1	g02663616
254-0664 Hydraulic Track Adjustment Gp .

Table 1

Parts Required to Update 254-0664 Hydraulic Track Adjustment Gp for D3K and D4K Machines
Item	Qty	New Part Number	Description	Former Part Number
1	1	353-5795	Plate	-
2	2	8T-4195	Bolt	-
3	2	8T-4121	Hard Washer	-
4	2	8T-4200	Bolt	-
5	2	8T-4224	Hard Washer	-
6	1	353-6188	Guard	-
7	1	353-5793	Yoke	254-0601
8	1	9S-4183	Plug	-
9	1	3D-2824	O-Ring Seal	-
10	1	4J-5268	O-Ring Seal	-

The new parts listed in Table 1 for 254-0664 Hydraulic Track Adjustment Gp are adaptable and effective with the machines that are listed in Table 2.

Table 2

Model	Adaptability	Effectivity
D3K	S/N:JTD1-175	S/N:JTD176-UP
	S/N:LLL1-1027	S/N:LLL1028-UP
	S/N:FFF1-725	S/N:FFF726-UP
D4K	S/N:RRR1-527	S/N:RRR528-UP
	S/N:MMM1-712	S/N:MMM713-UP

Illustration 2	g02663802
254-0665 Hydraulic Track Adjustment Gp .

Table 3

Parts Required to Update 254-0665 Hydraulic Track Adjustment Gp for D5K Machines
Item	Qty	New Part Number	Description	Former Part Number
1	1	353-5795	Plate	-
2	2	8T-4195	Bolt	-
3	2	8T-4121	Hard Washer	-
4	2	8T-4200	Bolt	-
5	2	8T-4224	Hard Washer	-
6	1	353-6187	Guard	-
7	1	352-8991	Yoke	254-0602
8	1	4J-5268	O-Ring Seal	-
9	1	9S-4183	Plug	-
10	1	3D-2824	O-Ring Seal	-

The new parts listed in Table 3 for 254-0665 Hydraulic Track Adjustment Gp are adaptable and effective with the machines that are listed in Table 4.

Table 4

Model	Adaptability	Effectivity
D5K	S/N:JLF1-262	S/N:JLF263-UP
	S/N:YYY1-1414	S/N:YYY1415-UP
	S/N:WWW1-1407	S/N:WWW1408-UP