2010/09/13 A New Rocker Arm Assembly Is Available for Certain Machine Engines {1123} Caterpillar

Agricultural Tractor:

MT855 (S/N: BCC1-UP)

MT865 (S/N: BDS1-UP)

MTC855 (S/N: 8181-UP)

MTC865 (S/N: 8191-UP)

Articulated Truck:

735 (S/N: B1N1-UP)

740 (S/N: B1P1-UP)

740 EJECTOR (S/N: B1R1-UP)

Cold Planer:

PM-200 (S/N: P1C1-UP)

PM-201 (S/N: PNM1-UP)

PM200 (S/N: P1M1-UP)

Landfill Compactor:

826C (S/N: 87X1-UP)

826GSeries II (S/N: AYH1-UP)

826H (S/N: AWF1-UP; ZXT1-UP)

836G (S/N: BRL1-UP)

836H (S/N: BXD1-UP; XTR1-UP)

Soil Compactor:

825C (S/N: 86X1-UP)

825GSeries II (S/N: AXB1-UP)

825H (S/N: ZHC1-UP; AZW1-UP)

Excavator:

365C (S/N: ELC1-UP; MEM1-UP; FEN1-UP; PAR1-UP; MCS1-UP; MCY1-UP)

374D (S/N: PJA1-UP; PAP1-UP; PAX1-UP)

385C (S/N: EDA1-UP; MMA1-UP; KGB1-UP; SBE1-UP; T2E1-UP; KKK1-UP; EAM1-UP; JCM1-UP; WAW1-UP; MNZ1-UP)

390D (S/N: WAG1-UP; BYP1-UP; WAP1-UP; WBT1-UP; KCZ1-UP)

Load Haul Dump:

R2900G (S/N: GLK1-UP; JLK1-UP)

R3200G (S/N: MAZ1-UP)

Motor Grader:

24M (S/N: B9K1-UP)

Off-Highway Truck/Tractor:

770 (S/N: BZZ1-UP)

772 (S/N: RLB1-UP)

773F (S/N: EED1-UP; EXD1-UP)

Quarry Truck:

773G (S/N: MWH1-UP)

775F (S/N: EYG1-UP)

775G (S/N: RFM1-UP)

Pipelayer:

583T (S/N: CMX1-UP)

587T (S/N: FAT1-UP)

Road Reclaimer/Soil Stabilizer:

RM-500 (S/N: ASW1-UP)

Track-Type Tractor:

D10N (S/N: 2YD1-UP; 3SK1-UP)

D10R (S/N: 3KR1-UP)

D10T (S/N: RJG1-UP)

D11T (S/N: GEB1-UP; TPB1-UP)

D8T (S/N: J8B1-UP; MLN1-UP; FCT1-UP; KPZ1-UP)

D9T (S/N: RJS1-UP)

Underground Articulated Truck:

AD30 (S/N: CXR1-UP; DXR1-UP)

AD45B (S/N: CXM1-UP)

AD55 (S/N: ANW1-UP)

AD55B (S/N: JNW1-UP)

Wheel Dozer:

824C (S/N: 85X1-UP)

824GSeries II (S/N: AWW1-UP)

824H (S/N: ASX1-UP)

834G (S/N: BPC1-UP)

834H (S/N: XDC1-UP; BTX1-UP)

844H (S/N: BTW1-UP)

854K (S/N: 2211-UP)

Wheel Loader:

980G (S/N: 2KR1-UP)

980H (S/N: MHG1-UP; A8J1-UP; JMS1-UP)

988G (S/N: BNH1-UP)

988HSeries II (S/N: 4401-UP)

988H (S/N: BXY1-UP)

990H (S/N: BWX1-UP)

991K (S/N: 5301-UP)

992K (S/N: H4C1-UP)

993K (S/N: LWA1-UP; Z9K1-UP)

Wheel Tractor-Scraper:

621B (S/N: 2GB1-UP)

621E (S/N: 6AB1-UP)

621F (S/N: 4SK1-UP)

621G (S/N: DBB1-UP; DBX1-UP)

623B (S/N: 46P1-UP)

623E (S/N: 6CB1-UP; 6YF1-UP)

623F (S/N: 6BK1-UP; 5EW1-UP)

623G (S/N: DBY1-UP)

627E (S/N: 7CG1-UP)

627F (S/N: 1DL1-UP)

627G (S/N: DBD1-UP; DBZ1-UP)

631G (S/N: DFA1-UP; DEM1-UP)

637D (S/N: 27W1-UP; 71W1-UP)

637E (S/N: 1FB1-UP)

637G (S/N: DFJ1-UP; DEX1-UP)

641B (S/N: 65K1-UP)

650B (S/N: 58K1-UP)

651B (S/N: 67K1-UP)

657 (S/N: 53K1-UP)

657B (S/N: 53K1-UP; 68K1-UP; 47M1-UP)

657E (S/N: 5YR1-UP; 6PR1-UP; 6TR1-UP; 7KR1-UP; 87Z1-UP; 90Z1-UP; 91Z1-UP)

657G (S/N: W1B1-UP; W1C1-UP; W1E1-UP; W1F1-UP; A4G1-UP)

660B (S/N: 58K1-UP)

666B (S/N: 66K1-UP)

Service Magazine SEPD1253, 16 March 2011, "A New Rocker Arm Assembly Is Available for C15 Engines". Disregard this article. Refer to the article that follows.

Description of Change: A new rocker arm assembly is available for the above listed machines. The new rocker arm assembly is designed for extended service life.

Adaptable To: The 10R-3483 Rocker Arm As is a direct replacement for the 278-1363 Rocker Arm As.

Illustration 1	g02134594
(1) 278-1363 Rocker Arm As (2) 10R-3483 Rocker Arm As (A) Machined cut

Note: Tighten the adjusting screw for the rocker arm to 100 ± 10 N·m (74 ± 7 lb ft).