Positive Pin Retention 2 (PPR2) Track Link Assemblies are Now Used on Certain 324D Forest Machines Caterpillar

Positive Pin Retention 2 (PPR2) Track Link Assemblies are Now Used on Certain 324D Forest Machines [PELJ1631]

UNDERCARRIAGE

TRACK GP

Positive Pin Retention 2 (PPR2) Track Link Assemblies are Now Used on Certain 324D Forest Machines

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Information Release Memo

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AVS?

Undercarriage

February 2014

Positive Pin Retention 2 (PPR2) Track Link Assemblies
are Now Used on Certain 324D Forest Machines

Forest Machine:

324D FM (S/N: JKR1-UP; JLS1-UP)

Reference Undercarriage Reconditioning Bulletin, REHS2586, "Field Service for Positive Pin Retention 2 (PPR2)" for information regarding the tooling and the procedures that are required to service Positive Pin Retention 2 (PPR2) track.

Description of Change: Positive Pin Retention 2 (PPR2) track link assemblies are now used on certain 324D Forest Machines listed above. The PPR2 design resists pin movement and end play. Keeping each pin in the correct position increases internal wear life by maintaining proper seal face load against the bushing for a longer time. It should also be noted that longer roller frames are also part of the engineering change so the improved track link assemblies are longer than the former track link assemblies. Additionally, PPR2 track link assemblies are recommended for machines operating on slopes, uneven terrain, and rough underfoot conditions.

Adaptable To: The 389-6862 Track Link Assembly replaces the former 213-1932 Track Link Assembly. The 389-6862 Track Link Assembly is 51 sections in length. The former 213-1932 Track Link Assembly is 48 sections in length. Refer to Table 1 for the new replacement. In order to adapt the improved PPR2 track link assembly, you will have to shorten the track link assembly by three sections. Refer to Table 2 for the Effectivity and adaptability of the new 389-6862 Track Link Assembly.

Table 1

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New Replacement
Former	New
213-1932	389-6862
48 sections in length	51 sections in length

Table 2

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Effectivity and Adaptability of the New 389-6862 Track Link Assembly
Sales Model	Effectivity		Adaptability
324D	S/N:JKR1500-UP		S/N:JKR1-1499
S/N:JLS1550-UP		S/N:JLS1-1549

Table 3

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Parts List for 389-6862 Track Link Assembly
Part Number	Part Name	Qty (per Assembly)
261-1011	Track Link (RH)	51
261-1012	Track Link (LH)	51
261-1013	Track Pin	50
261-1014	Track Master Pin	1
261-1015	Track Bushing	50
261-1016	Master Bushing	1
261-1017	Thrust Ring	100
261-1018	Thrust Ring (MASTER)	2
261-1021	Seal Assembly	100
261-1022	Seal Assembly (MASTER)	2

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