PLATE 1P6356 - Caterpillar

Engine:
C18 (S/N: ZKB1-UP)
C9 (S/N: X3R1-UP)
Generator Set:
3406 GEN SET (S/N: NKM1-UP)
3406C GEN SET (S/N: ZKC1-UP; C2G1-UP; C5G1-UP; C8G1-UP; C2Y1-UP)
3456 GEN SET (S/N: C1G1-UP; C3G1-UP; C4G1-UP; C2T1-UP)
C15 GEN SET (S/N: T4A1-UP; ZKA1-UP; C5E1-UP; STG1-UP; C5H1-UP; C5L1-UP; NKL1-UP; X4R1-UP; CYY1-UP)
C18 GEN SET (S/N: C6C1-UP; G4C1-UP; N1C1-UP; N1D1-UP; STD1-UP; DKE1-UP; PEJ1-UP; NKK1-UP; NKM1-UP; STM1-UP; EKW1-UP; M1Y1-UP; M1Z1-UP)
C18 MARINE GS (S/N: GBM1-UP)
C9 GEN SET (S/N: C9E1-UP)
Petroleum Engine:
C15 PET GS ENG (S/N: PET1-UP)
Description of Change: The improved exciter rotor design is now used on the Engines and Generator Sets that are listed in Table 1. A more durable exciter rotor design is being implemented to withstand the mechanical stress on the exciter rotor lead lugs which are known to be the greatest in paralleling applications, especially in conditions where reverse VAR or reverse KW events are experienced by the generator. The exciter rotor design contains the following improvements:
Upgraded exciter rotor lead lugs, as shown in Illustration 1, to lugs of stronger construction to avoid breaking of lugs due to mechanical stress at electrical connection of exciter rotor lead to rectifier assembly.
Reduced length of exciter rotor lead wire to minimize mechanical stress on lead wire and prevent lug from breaking off at the rectifier assembly.Adaptable To:
High voltage may be present. The power source must be disconnected before working on the equipment. Failure to disconnect the power source could result in injury or death. Verify that the equipment is not energized before performing any maintenance. This work must be performed by trained personnel with