A New Coupling Assembly Is Used on Heat Exchangers for Certain 3512C and 3516C Engines {1379, 7553}
- Engine:
- 3512C (S/N: T3R1-UP; T3S1-UP; T3W1-UP)
- 3516C (S/N: TKS1-UP; TKY1-UP)
Description of Change: The new coupling assembly provides a better seal at the joint for the heat exchanger elbow and jacket water tube. The coupling assembly provides superior clamping force against high jacket water pressure.
Adaptable To: The 423-2808 Coupling As replaces the 7L-3201 Tube Joint on the engines that are listed above.
The 423-2808 Coupling As is adaptable to the above engines back to first production. Effectivity is listed in Table 1.
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Sales Model     | Effective Serial Numbers     |
---|---|
3512C HD     | S/N:T3P1-UP S/N:T3R223-UP S/N:T3S202-UP S/N:T3W202-UP S/N:T3Y1-UP S/N:TKP1-UP     |
3516C HD     | S/N:TKG1-UP S/N:TKJ1-UP S/N:TKK1-UP S/N:TKR1-UP S/N:TKS214-UP S/N:TKT1-UP S/N:TKX1-UP S/N:TKY208-UP     |
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Qty     | New Parts     |
---|---|
2     | 110-7753 O-Ring Seal     |
2     | 423-2808 Coupling As     |
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Illustration 1 | g03343047 |
Typical heat exchanger (1) 423-2808 Coupling As |
Note: New 110-7753 O-Ring Seals are provided along with coupling assembly (1) for the reinstallation of the tube assembly.
Tighten the coupling assembly ... 12 N·m (9 lb ft)
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