New Final Drive Ring Gear Is Now Available for Field Installation on Certain Track-Type Tractors {4050} Caterpillar

Track-Type Tractor

D6R (S/N: A6M1-UP; EMM1-UP; 2HM1-UP; 4FM1-UP; 8TM1-UP; 9BM1-UP; JEN1-UP; 2YN1-UP; 3ZN1-UP; 4HN1-UP; 4MN1-UP; 5LN1-UP; 6JN1-UP; 7KN1-UP; 8LN1-UP; 8XN1-UP; 9MN1-UP; 9PN1-UP; DMP1-UP; 4JR1-UP; 4TR1-UP; 4WR1-UP; 5PR1-UP; 5RR1-UP; 6FR1-UP; 6GR1-UP; 6HR1-UP; 6MR1-UP; 7AR1-UP; 7DR1-UP; 7GR1-UP; S6T1-UP; S6X1-UP; S6Y1-UP; C6Z1-UP)

D6R Series II (S/N: BNC1-UP; AFD1-UP; CAD1-UP; ADE1-UP; BLE1-UP; BRE1-UP; DAE1-UP; ACJ1-UP; BMJ1-UP; BRJ1-UP; BMK1-UP; BNL1-UP; AEM1-UP; AFM1-UP; AGM1-UP; BPM1-UP; AEP1-UP; BPP1-UP; BPS1-UP; BLT1-UP; FDT1-UP; AAX1-UP; BMY1-UP; BPZ1-UP; BRZ1-UP)

D6R Series III (S/N: GJB1-UP; WCB1-UP; HDC1-UP; RFC1-UP; TBC1-UP; HCD1-UP; HKE1-UP; WRG1-UP; MTJ1-UP; DMK1-UP; JEK1-UP; EXL1-UP; JDL1-UP; DLM1-UP; LFM1-UP; LGP1-UP; DPS1-UP; GMT1-UP; MRT1-UP; EXW1-UP)

D6R2 (S/N: PPP1-UP; SSS1-UP; TTT1-UP)

D6T (S/N: 2D21-UP; CR31-UP; 2B31-UP; MB51-UP; AK71-UP; MH71-UP; CG81-UP; 7C91-UP; SGA1-UP; JHB1-UP; KSB1-UP; ZEB1-UP; ZJB1-UP; JZC1-UP; SMC1-UP; DTD1-UP; JWD1-UP; LBD1-UP; RAD1-UP; LAE1-UP; STE1-UP; DJG1-UP; WCG1-UP; WFH1-UP; EJJ1-UP; LKJ1-UP; SLJ1-UP; GMK1-UP; RRK1-UP; SNK1-UP; JML1-UP; KJL1-UP; MEL1-UP; SKL1-UP; JNM1-UP; TSM1-UP; WLM1-UP; WRN1-UP; K1R1-UP; KMR1-UP; PLR1-UP; WES1-UP; GCT1-UP; HYT1-UP; SGT1-UP; JRW1-UP; RCW1-UP; RLW1-UP; LAY1-UP; NDY1-UP; TMY1-UP; HTZ1-UP; PEZ1-UP; SGZ1-UP)

D6T (BUILD 20) (S/N: ES91-UP; GZ91-UP; LNC1-UP; LRG1-UP; HMH1-UP; HNK1-UP; HZL1-UP; KEW1-UP; KTW1-UP; HLY1-UP)

Description Of Change: New 461-9930 Ring Gear for the final drive group is now available for field installation on the machines listed above. The new ring gear is installed only along with new 456-7041 Ring.

Adaptable To: The new ring gear along with the new snap ring is installed on the final drive group. The new parts are the field install only option and are adaptable to the machines that are listed above.

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Do not operate or work on this product unless you have read and understood the instruction and warnings in the relevant Operation and Maintenance Manuals and relevant service literature. Failure to follow the instructions or heed the warnings could result in injury or death. Proper care is your responsibility.

Illustration 1	g06306783
Typical example

For the machines listed above, replace the 335-6121 Ring Gear with the new 461-9930 Ring Gear. When replacing the ring gear, it is required to use only the new 456-7041 Ring.

Note: The old 8G-8844 Ring is not compatible with the new 461-9930 Ring Gear.