2007/02/26 Caterpillar

Engine:

3126B (S/N: BDZ1-UP)

C-12 (S/N: BCY1-UP)

C18 (S/N: CYN1-UP)

3412 (S/N: 2WJ1-UP; 81Z1-UP)

3412C (S/N: BAK1-UP; 9EP1-UP)

3508 (S/N: 5XM1-UP; 3LS1-UP; 23Z1-UP; 70Z1-UP)

3508B (S/N: 3DM1-UP; S2A1-UP; CNB1-UP; S2B1-UP; LPD1-UP; BAG1-UP; 4GM1-UP; 6PN1-UP; 1TW1-UP; 2HW1-UP; 3DW1-UP)

3512 (S/N: 6PM1-UP; 3MS1-UP; 3WS1-UP; 24Z1-UP; 67Z1-UP)

3512B (S/N: NSC1-UP; AAG1-UP; FFG1-UP; S2G1-UP; S2H1-UP; 8EM1-UP; 8RM1-UP; 6WN1-UP; 1PW1-UP; 2GW1-UP; 4AW1-UP; 5AW1-UP)

3516 (S/N: 4XF1-UP; 5SJ1-UP; 7KM1-UP; 3NS1-UP; 3XS1-UP; 25Z1-UP; 73Z1-UP)

3516B (S/N: 6HN1-UP; 7RN1-UP; 9AN1-UP; S2P1-UP; S2R1-UP; 1NW1-UP; 2FW1-UP; 2JW1-UP; 3CW1-UP; TAK1-UP; CPA1-UP)

G3406 (S/N: 1RK1-UP)

G3606 (S/N: 3XF1-UP)

G3608 (S/N: 4WF1-UP)

G3612 (S/N: 1YG1-UP; BKE1-UP)

G3616 (S/N: 4CG1-UP; BLB1-UP)

Generator Set:

C9 (S/N: SJB1-UP)

C18 (S/N: MGS1-UP; STD1-UP)

3406E (S/N: 8AZ1-UP)

3412 (S/N: 4BZ1-UP)

3412C (S/N: RTY1-UP; 5FL1-UP)

G3412 (S/N: R7A1-UP; KAP1-UP)

3456 (S/N: CCB1-UP; C3G1-UP; C4G1-UP; CAH1-UP; CBX1-UP; C1G1-UP)

3508 (S/N: CNF1-UP; CAW1-UP)

3508B (S/N: BNG1-UP; PTJ1-UP; PTN1-UP; 5KW1-UP; BGX1-UP; BGZ1-UP)

3512 (S/N: CMJ1-UP; FDR1-UP)

3512B (S/N: CMC1-UP; FDA1-UP; PTE1-UP; BLF1-UP; PTF1-UP; BRK1-UP; PTM1-UP; BMS1-UP; 6GW1-UP)

3516 (S/N: CAL1-UP; CMD1-UP)

3516B (S/N: CAA1-UP; PTA1-UP; BMB1-UP; PTB1-UP; PTC1-UP; BLH1-UP; BPJ1-UP; LEK1-UP; CBN1-UP; FDN1-UP; GAR1-UP; GZS1-UP; PPS1-UP; GZT1-UP; 8NW1-UP; GZY1-UP)

Power Module:

PM3412 (S/N: CAJ1-UP)

PM3508 (S/N: BLM1-UP; BPY1-UP)

PM3512 (S/N: BRF1-UP; BNR1-UP)

PM3516 (S/N: CAC1-UP; BPD1-UP)

An update has been made to the wiring schematic for an electronic governor. Incorrect wiring of the electronic governor can cause the governor to not function correctly.

The wiring schematics for the 161-0797 Governor Control As is adaptable to the above products. Check the wiring schematics in order to ensure that the governor is properly grounded for engines that are equipped with the 161-0797 Governor Control As .

Refer to Special Instruction, REHS3003, "Proper Grounding for the 161-0797 Governor Control As" and General Service Information, KENR5442, "Installation and Operation Load Sharing Module" for additional information.

Illustration 1	g01353336
Wiring schematic for the electronic governor

The rectangle with the dashed line of this schematic shows the portion that is affected by the most recent change. Refer to Illustration 1.

Illustration 2	g01200841
Previous schematic

The previous schematic does not show the grounding of terminal locations 4, 6, and 8. Refer to Illustration 2.

Illustration 3	g01200843
Updated schematic

The updated schematic now shows the grounding of terminals 4, 6, and 8. Refer to Illustration 3.

Illustration 4	g01352817
Wiring schematic for the electronic governor

The rectangle with the dashed line of this schematic shows the portion that is affected by the most recent change. Refer to Illustration 4.

Illustration 5	g01352820
Previous schematic

The previous schematic shows a ground connection between terminal location 2A, and 80. Refer to Illustration 5.

Illustration 6	g01352824
Updated schematic

The updated schematic now shows the ground connection is removed between terminal location 2A, and 33. Terminal 33 was terminal 80. Refer to Illustration 6.