2012/10/01 Caterpillar

Generator Set:

3512 (S/N: ZAF1-UP)

3512B (S/N: ZAH1-UP; ZAJ1-UP)

3516C (S/N: SBK1-UP)

C175-16 (S/N: WYB1-UP)

Engine:

3508 (S/N: ZAB1-UP; CNF1-UP; 8TL1-UP; 3HM1-UP; 9WN1-UP; 3PS1-UP; CAW1-UP; 5PW1-UP; 95Y1-UP; 96Y1-UP; 23Z1-UP; 68Z1-UP; 69Z1-UP; 70Z1-UP)

3508B (S/N: S2A1-UP; CNB1-UP; S2B1-UP; LPD1-UP; S2D1-UP; ZAD1-UP; S2E1-UP; S2F1-UP; BAG1-UP; 2BM1-UP; 3DM1-UP; 7SM1-UP; PTN1-UP; 6PN1-UP; C8R1-UP; 5PS1-UP; 1TW1-UP; 2HW1-UP; 3DW1-UP; 5KW1-UP; BGX1-UP; BPX1-UP)

3508C (S/N: TTA1-UP; TTB1-UP; F1X1-UP)

3512 (S/N: PTG1-UP; PTH1-UP; CMJ1-UP; YAK1-UP; 2WK1-UP; FDR1-UP; 3RS1-UP; 3WS1-UP; 6WW1-UP; 49Y1-UP; 50Y1-UP; 24Z1-UP; 65Z1-UP; 66Z1-UP; 67Z1-UP)

3512B (S/N: BRC1-UP; CMC1-UP; NSC1-UP; FDE1-UP; BLF1-UP; PTF1-UP; AAG1-UP; FFG1-UP; S2G1-UP; S2H1-UP; YAH1-UP; S2J1-UP; BRK1-UP; S2K1-UP; S2L1-UP; PTM1-UP; S2M1-UP; YAM1-UP; 7HM1-UP; 8EM1-UP; 8RM1-UP; BRN1-UP; S2N1-UP; YAN1-UP; 4TN1-UP; 4DR1-UP; 1PW1-UP; 2GW1-UP; 3ZW1-UP; 4AW1-UP; 5AW1-UP; 6GW1-UP; 2EZ1-UP)

3512C (S/N: TTC1-UP; TTE1-UP; TTF1-UP; MRG1-UP; SBG1-UP; TTG1-UP; MKH1-UP; LLK1-UP; SLM1-UP; TKP1-UP; T3P1-UP; T3R1-UP; RMS1-UP; T3S1-UP; NJT1-UP; E3W1-UP; T3W1-UP; E3X1-UP; F2X1-UP; E3Y1-UP)

3516 (S/N: CMD1-UP; 4MJ1-UP; 5MJ1-UP; CAL1-UP; YAL1-UP; ZAL1-UP; ZBL1-UP; GZR1-UP; YAS1-UP; YBS1-UP; 2TS1-UP; 3JS1-UP; 3SS1-UP; 3XS1-UP; 8TW1-UP; GZX1-UP; 25Z1-UP; 29Z1-UP; 71Z1-UP; 72Z1-UP; 73Z1-UP)

3516B (S/N: CPA1-UP; BMB1-UP; CDE1-UP; B5G1-UP; BPJ1-UP; BCK1-UP; LEK1-UP)

3516B (S/N: TAK1-UP; CAN1-UP; CBN1-UP; FDN1-UP; 6HN1-UP; 7RN1-UP; 8CN1-UP; 8KN1-UP; 9AN1-UP; S2P1-UP; YAP1-UP; ZAP1-UP; ZBP1-UP; GAR1-UP; PBR1-UP; S2R1-UP; YAR1-UP; ZAR1-UP; ZBR1-UP; GZS1-UP; S2S1-UP; GZT1-UP; S2T1-UP; YAT1-UP; YBT1-UP; S2W1-UP; YAW1-UP; YBW1-UP; 1NW1-UP; 2FW1-UP; 2JW1-UP; 3CW1-UP; 4BW1-UP; 8NW1-UP; FDX1-UP; S2X1-UP; GZY1-UP; S2Y1-UP; S2Z1-UP)

3516C (S/N: PRC1-UP; SKC1-UP; TTD1-UP; PAG1-UP; TTH1-UP; SBJ1-UP; SCJ1-UP; SFJ1-UP; TTJ1-UP; SCK1-UP; SEK1-UP; SFK1-UP; SBM1-UP; TKR1-UP; JTS1-UP; TKS1-UP; TKT1-UP; WFT1-UP; SDX1-UP; TKX1-UP; T2X1-UP; TKY1-UP; E3Z1-UP; GS21-UP)

3606 (S/N: 8RB1-UP)

3608 (S/N: 6MC1-UP; 5PG1-UP; 8LL1-UP; 7WR1-UP)

3612 (S/N: 9RC1-UP; 9FR1-UP)

3616 (S/N: ZYD1-UP; 1PD1-UP; 1FN1-UP)

3618 (S/N: 2MW1-UP)

C175-16 (S/N: M6A1-UP; Y3A1-UP; A7B1-UP; M6B1-UP; WYC1-UP; P6L1-UP; P5P1-UP; R1X1-UP)

C175-20 (S/N: A7E1-UP)

C280-16 (S/N: NKB1-UP; TDX1-UP)

G3508 (S/N: 4WD1-UP; 9TG1-UP)

G3508 (S/N: CPJ1-UP)

G3508 (S/N: 2TJ1-UP; WPM1-UP; WPN1-UP; DLR1-UP)

G3508 SI TA (S/N: CPS1-UP; CPY1-UP)

G3508B (S/N: RBK1-UP)

G3512 (S/N: 5JD1-UP; 7NJ1-UP)

G3512 SI TA (S/N: CRN1-UP; CSP1-UP)

G3512 (S/N: WPP1-UP; WPR1-UP; GNS1-UP)

G3512B (S/N: JHH1-UP)

G3512E (S/N: GFM1-UP; NGS1-UP)

G3516 (S/N: L6A1-UP; ZBA1-UP; 8LD1-UP; L6E1-UP; L6F1-UP)

G3516 SI TA (S/N: CPG1-UP)

G3516 (S/N: L6G1-UP; 4EK1-UP; WPS1-UP; WPT1-UP; WPW1-UP)

G3516 (S/N: CSZ1-UP)

G3516 (S/N: ZAZ1-UP)

G3516B (S/N: ZBB1-UP)

G3516B (S/N: CSC1-UP)

G3516B (S/N: ZBC1-UP)

G3516B (S/N: CME1-UP)

G3516B (S/N: JEF1-UP; L6H1-UP; L6J1-UP; CEY1-UP; 7EZ1-UP)

G3516C (S/N: GSB1-UP)

G3516C (S/N: TJB1-UP)

G3516C (S/N: GZC1-UP)

G3516C (S/N: TJC1-UP)

G3516C (S/N: F6D1-UP; F6E1-UP; F6F1-UP; GZZ1-UP)

G3516E (S/N: F6G1-UP; GAS1-UP; SLY1-UP)

G3516H (S/N: GLM1-UP)

G3520B (S/N: GLF1-UP; GZP1-UP)

G3520C (S/N: GZA1-UP; GZB1-UP; GZJ1-UP; GZK1-UP; GZL1-UP; GZM1-UP; GZN1-UP; RLP1-UP; LGS1-UP)

G3520E (S/N: GZE1-UP; GZG1-UP; GZH1-UP)

G3606 (S/N: 3XF1-UP)

G3608 (S/N: 4WF1-UP)

G3612 (S/N: 1YG1-UP)

G3616 (S/N: 4CG1-UP)

Marine Engine:

C32 (S/N: RTK1-UP)

Petroleum Engine:

3508C (S/N: LLC1-UP; C8E1-UP; LLE1-UP; C8K1-UP)

3512C (S/N: LLA1-UP; LLB1-UP; LLF1-UP)

3516C (S/N: PES1-UP)

G3520B (S/N: TPC1-UP)

Power Module:

PM3516 (S/N: BPD1-UP; NBR1-UP)

PMG3516 (S/N: CFD1-UP)

PMG3516 (S/N: KAD1-UP; JKK1-UP)

Engine News, SEBD9815, 1 October 2012, "Procedure for the Disassembly and Assembly of the Pressure Relief Valve". The article has been revised because the repair kit in the article was canceled and replaced. Also, more serial number prefixes were added and the title was changed.

The new 422-9537 Repair Kit replaces the former 2W-3584 Repair Kit, which is canceled.

The repair kit is used to repair the following crankcase explosion relief valves:

• The 8N-8509 Explosion Relief Valve

• The 1W-2834 Explosion Relief Valve

The new repair kit contains O-ring seals that are made from a material which can help prevent leakage.

As of 3December 2012, those same O-ring seals are in both of the explosion relief valves listed above.

For information on disassembling and assembling the relief valves, refer to Special Instruction, REHS2999, "Installation of the 422-9537 Repair Kit ".