2005/07/25 Caterpillar

Track-Type Tractor:

D3G (S/N: CFC1-UP; CFF1-UP; JMH1-UP; BYR1-UP)

D4G (S/N: FDC1-UP; HYD1-UP; CFN1-UP; TLX1-UP)

D5G (S/N: RKG1-UP; FDH1-UP; CLW1-UP; FDW1-UP)

D5N (S/N: AKD1135-UP; AGG1335-UP; CFH300-UP; CKT400-UP)

D6N (S/N: CBF300-UP; CCG400-UP; ALH735-UP; CBJ400-UP; CCK500-UP; CBL400-UP; AKM1235-UP; ALR635-UP; CCS400-UP; ALY1335-UP)

D6R Series II (S/N: ADE646-UP; AFM140-UP; AEP435-UP; AAX797-UP)

D8T (S/N: KPZ1-UP)

Special Instruction, REHS2424, June 2005, "Installation Guide for the AccuGrade GPS on D3G, D4G, and D5G Machines"Special Instruction, REHS2425, March 2005, "Installation of the AccuGrade GPS Components". (D5N and D6N).Special Instruction, REHS2445, March 2005, "Installation of the AccuGrade GPS Components". (D6R).Special Instruction, REHS2314, March 2005, "Installation of the AccuGrade GPS Components". (D8T).

The above-referenced AccuGrade GPS Special Instructions contain an incorrect torque specification. The incorrect torque specification is associated with fastening the Steel Mast to the Blade using 8T-4648 Bolts. When fastening the Steel Mast to the blade, the correct torque applied to the 8T-4648 Bolts should be 100 ± 20 N·m (75 ± 15 lb ft) (standard torque).

The above-referenced AccuGrade GPS Special Instructions will be corrected at the next scheduled revision.