LOCKNUT 2M2570 - Caterpillar

Engine: 3114 (S/N: 6AF1-UP; 5JG1-UP) 3116 (S/N: 2SG1-UP; 1NJ1-UP) 3126 (S/N: CKK1-UP) 3208 (S/N: 29A1-UP; 30A1-UP; 5YF1-UP; 90N1-UP; 03Z1-UP) 3304 (S/N: 3TC1-UP; 10E1-UP; 13E1-UP; 83Z1-UP) 3304B (S/N: 2KK1-UP) 3306 (S/N: 5JC1-UP; 64Z1-UP; 84Z1-UP; 85Z1-UP) 3306B (S/N: B8D1-UP; 1DG1-UP; 2AJ1-UP; 9NR1-UP; 1RS1-UP) 3406B (S/N: 4TB1-UP) 3406C (S/N: 2WB1-UP; 4RG1-UP) 3408 (S/N: 67U1-UP; 99U1-UP; 78Z1-UP) 3408B (S/N: 8RG1-UP; 67U1-UP; 99U1-UP; 78Z1-UP) 3408C (S/N: 8RG1-UP; TAM1-UP; 67U1-UP; 99U1-UP; 78Z1-UP) 3412 (S/N: 9XF1-UP; 7HG1-UP; 2WJ1-UP; 3JK1-UP; 7BL1-UP; 60M1-UP; 38S1-UP; 81Z1-UP) 3412C (S/N: BAK1-UP; 3JK1-UP; 60M1-UP; DJN1-UP; RLR1-UP; 8AR1-UP; 9BR1-UP; 81Z1-UP) 3508 (S/N: ZAB1-UP; 1ZF1-UP; 6TJ1-UP; PTK1-UP; 5XM1-UP; 95Y1-UP; 96Y1-UP; 97Y1-UP; 23Z1-UP; 68Z1-UP; 69Z1-UP; 70Z1-UP) 3508B (S/N: CBB1-UP; 3DM1-UP; 7SM1-UP; 2HW1-UP; 3DW1-UP; BPX1-UP) 3512 (S/N: YAF1-UP; 3YF1-UP; PTG1-UP; PTH1-UP; YAK1-UP; 2WK1-UP; 6PM1-UP; 3WS1-UP; YAX1-UP; 49Y1-UP; 50Y1-UP; 51Y1-UP; 24Z1-UP; 65Z1-UP; 66Z1-UP; 67Z1-UP) 3512B (S/N: BRC1-UP; PTM1-UP; 8EM1-UP; 1PW1-UP) 3512C (S/N: RMS1-UP) 3516 (S/N: 4XF1-UP; 9KF1-UP; 4MJ1-UP; 5MJ1-UP; 5SJ1-UP; ZAL1-UP; 7KM1-UP; GZR1-UP; 3XS1-UP; RKT1-UP; GZX1-UP; 25Z1-UP; 27Z1-UP; 29Z1-UP; 71Z1-UP; 72Z1-UP; 73Z1-UP) 3516B (S/N: LEK1-UP; CBN1-UP; 9AN1-UP; PBR1-UP; GZS1-UP; 1NW1-UP; 2FW1-UP; S2Z1-UP) 3606 (S/N: 8RB1-UP) 3608 (S/N: 6MC1-UP) G3406 (S/N: 4FD1-UP) G3408 (S/N: 6NB1-UP) G3412 (S/N: 7DB1-UP) G3508 (S/N: 2JF1-UP) G3512 (S/N: 4KC1-UP) G3516 (S/N: 3RC1-UP; 25Z1-UP) G379 (S/N: 72B1-UP) G398 (S/N: 73B1-UP) G399 (S/N: 49C1-UP)Generator Set: 3406 (S/N: 4ZR1-UP) 3406B (S/N: 2WB1-UP; 4RG1-UP) 3406C (S/N: KPS1-UP; 1LS1-UP) 3406C (S/N: PFH1-UP) 3412C (S/N: BAX1-UP) 3512 (S/N: ZAF1-UP) 3516B (S/N: ZAP1-UP) SR4 (S/N: 2MM1-UP; 3YM1-UP; 4LM1-UP; 5JM1-UP; 6JM1-UP)Industrial Engine: 3406 (S/N: 6TB1-UP) 3406C (S/N: 3ER1-UP) 3408C (S/N: 9ER1-UP) 3412C (S/N: 38S1-UP) 3412D (S/N: REA1-UP)Marine Engine: 3406C (S/N: 4TB1-UP; 1SS1-UP) 3408C (S/N: 1TS1-UP) 3412E (S/N: 9PW1-UP)Petroleum Engine: 3508C (S/N: LLC1-UP) 3512C (S/N: LLA1-UP; LLB1-UP; LLF1-UP) 3516C (S/N: PES1-UP)Power Module: PM3508 (S/N: BLM1-UP) PM3512 (S/N: BRF1-UP; BNR1-UP) PM3516 (S/N: CAC1-UP; BPD1-UP)Introduction
This special instruction highlights the features of 379-3359 Speed Switch Assembly , which allows usage for 9Y-0901 Switch , 4W-9733 Governor Control As , and 7W-2743 Speed Switch Assembly applications. There are no changes to the current harness assembly or terminal connections. This document is for informational purposes only and highlights any unused connections depending on the intended application. Any current installation instructions are still valid and must be followed to ensure proper operation.
Illustration 1 g02645340
(1) Remote reset feature labeled "RR" at terminal "1" (2) Oil Step (3) "Oil Step Latch" at terminal "17" (4) "Oil Step"