RING-EXPANDER 5J4593 - Caterpillar

Engine: 3516B (S/N: 7RN1-UP; CPA1-UP; BMB1-UP; BPJ1-UP; FDN1-UP; 6HN1-UP; GAR1-UP; PBR1-UP; GZS1-UP; GZT1-UP; 1NW1-UP; 2JW1-UP; 8NW1-UP; FDX1-UP; GZY1-UP) 3208 (S/N: 30A1-UP; 5YF1-UP) 3304 (S/N: 83Z1-UP) 3306 (S/N: 85Z1-UP) 3306B (S/N: B8D1-UP; 2AJ1-UP; 8NS1-UP; 9DS1-UP; LRW1-UP) 3412 (S/N: 2WJ1-UP; 4BZ1-UP) 3412C (S/N: BAK1-UP; 5FL1-UP; DJN1-UP; 9EP1-UP; TFT1-UP; BCW1-UP; LRY1-UP) 3412E (S/N: TGC1-UP) 3508 (S/N: CNF1-UP; 1ZF1-UP; 5XM1-UP; 3LS1-UP; 5PW1-UP; 96Y1-UP; 23Z1-UP; 69Z1-UP; 70Z1-UP) 3508B (S/N: CNB1-UP; 4GM1-UP; 6PN1-UP; 2HW1-UP; 5KW1-UP; BGX1-UP) 3512 (S/N: 3YF1-UP; CMJ1-UP; 6PM1-UP; FDR1-UP; 3MS1-UP; 6WW1-UP; 50Y1-UP; 24Z1-UP; 66Z1-UP; 67Z1-UP) 3512B (S/N: CMC1-UP; FDE1-UP; BLF1-UP; PTF1-UP; BRK1-UP; PTM1-UP; 8RM1-UP; 6WN1-UP; 1PW1-UP; 4AW1-UP; 5AW1-UP; 6GW1-UP) 3516 (S/N: CMD1-UP; 4XF1-UP; 4MJ1-UP; 5SJ1-UP; CAL1-UP; 7KM1-UP; GZR1-UP; 3NS1-UP; 8TW1-UP; GZX1-UP; 29Z1-UP; 72Z1-UP; 73Z1-UP) C18 (S/N: DKE1-UP) G3304 (S/N: 37Y1-UP) G3306 (S/N: JCA1-UP; 4DL1-UP; CNR1-UP; 07Y1-UP) G3406 (S/N: 4FD1-UP; R7E1-UP; 1RK1-UP; KAR1-UP) G3408 (S/N: 6NB1-UP; 6RJ1-UP; 78Z1-UP) G3408C (S/N: 3WR1-UP; BAZ1-UP) G3412 (S/N: R7A1-UP; 7DB1-UP; 3NK1-UP; KAP1-UP) G3412C (S/N: 6ZM1-UP; 5KR1-UP) G3508 (S/N: 4WD1-UP; 2JF1-UP; 9TG1-UP; CPJ1-UP; 2TJ1-UP; CPS1-UP; CPY1-UP; CAW1-UP) G3512 (S/N: 4KC1-UP; 5JD1-UP; 7NJ1-UP; CRN1-UP; CSP1-UP) G3516 (S/N: ZBA1-UP; 3RC1-UP; 8LD1-UP; CPG1-UP; 4EK1-UP; CSZ1-UP; ZAZ1-UP; 25Z1-UP)Electric Power Generation: SR4 (S/N: 5NA1-UP; 6DA1-UP; 6SA1-UP; 9AB1-UP; 9EF1-UP; 8HG1-UP; 9FG1-UP; 3KJ1-UP; 4SJ1-UP; 5NJ1-UP; 6EJ1-UP; 7AJ1-UP; 2MM1-UP; 4LM1-UP; 6JM1-UP; 6YR1-UP; 7YR1-UP; 8DR1-UP; 8ER1-UP; 9CR1-UP; 9DR1-UP; 1MS1-UP) SR4B (S/N: 5CK1-UP; 6PK1-UP; 8GK1-UP; 2DM1-UP; 2FN1-UP; 3FN1-UP; 3HN1-UP; 6SN1-UP; 7DN1-UP; BGG1-UP; BGK1-UP)Generator Set: 3406C GEN SET (S/N: C2G1-UP; C5G1-UP; C8G1-UP; KPS1-UP; 8FS1-UP; 9ES1-UP; LRX1-UP) 3406E GEN SET (S/N: 8AZ1-UP) 3412 GEN SET (S/N: 81Z1-UP) 3412C GEN SET (S/N: BAX1-UP) 3456 GEN SET (S/N: CCB1-UP; C1G1-UP; C3G1-UP; C4G1-UP; CAH1-UP; C2T1-UP; CBX1-UP) C18 GEN SET (S/N: G4C1-UP; STD1-UP; STM1-UP; EKW1-UP; C6C1-UP) 3406 GEN SET (S/N: 4ZR1-UP)Power Module: PM3412 (S/N: CAJ1-UP) PM3456 (S/N: B3G1-UP) PM3508 (S/N: BLM1-UP; BPY1-UP) PM3512 (S/N: BRF1-UP; BNR1-UP) PM3516 (S/N: CAC1-UP; BPD1-UP)Introduction
This Special Instruction provides information about the equipment and the procedures that are necessary in order to replace or to upgrade the "Generator Set Control" (GSC) that has been installed for Caterpillar generator sets. The GSC is located in the Electronic Modular Control Panel II (EMCP II).This Special Instruction also provides information about the equipment and the procedures that are necessary in order to replace or upgrade the AC Transformer Box (ATB) that has been installed for Caterpillar generator sets. The ATB+ is located in the Electronic Modular Control Panel II (EMCP II).The GSC+ is the replacement for the "Generator Set Control" (GSC). The ATB+ is the replacement the AC Transformer Box (ATB). Note: The ATB cannot be used with GSC+. The ATB MUST be replaced by the ATB+ in order to be compatible with the GSC+.The instructions and the warnings in this publication must be read and understood before the installation of the GSC+ or the ATB+.The GSC+ direct replacement features are as follows:
Power Metering
Total Real Power (kW)
Total Reactive Power (kVAR)
Power Factor
Rated Power (Percent kW)
Total Energy Output (kWHr)
Additional Display Components
Power Meter Key and Display
Spare Fault Indicators
Additional Generator Protection
Reverse Power
Overvoltage and Undervoltage
Overfrequency and Underfrequency
OvercurrentA complete GSC+ upgrade procedure can provide additional features. A complete GSC+ upgrade procedure will require additional wiring and modifications. Refer