Engines Are Now Built with Semi-Crowned Lifter Rollers {1209}
- Caterpillar Products: All
- 3500B Engines
Description of Change:
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Illustration 1 | g01082028 |
Valve lifter assembly (1) Lifter body (2) Lifter roller |
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Illustration 2 | g01082029 |
Injector lifter assembly (1) Lifter body (2) Lifter roller |
Engines are now built with semi-crowned lifter rollers. Semi-crowned rollers significantly reduce the stress on each lobe of the cam.
Adaptable To: All 3500B commercial engines are now built with semi-crowned rollers in the injector and valve lifter assemblies. All 3500B engines must now use the new parts. Refer to the part numbers for the lifter assemblies in Table 1.
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Part     | New Part Number     | Cancelled Part Number     |
Injector Lifter As     | 197-7004     | 192-8747     |
10R1349 | 0R1368     | |
Valve Lifter As     | 230-7875     | 192-8746     |
229-5490 | ||
10R1903 | 0R1350     | |
10R1505 |
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Effective Serial Numbers     |
3508     |
S/N:1FZ02132     |
S/N:1TW00359     |
S/N:2MB00188     |
S/N:2HW00263     |
S/N:3DM00478     |
S/N:3DW00178     |
S/N:4GM00743     |
S/N:5PS00321     |
S/N:6PN00886     |
S/N:7SM00977     |
S/N:BPX00101     |
S/N:CBB00213     |
S/N:CTC00256     |
S/N:2SB00108     |
S/N:2SD00104     |
S/N:2SE00130     |
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Effective Serial Numbers     |
3512     |
S/N:1GZ01825     |
S/N:1PW00440     |
S/N:2AF00389     |
S/N:2EZ00356     |
S/N:2GW00420     |
S/N:3HD00279     |
S/N:3KD00279     |
S/N:3ZW00557     |
S/N:4AW00873     |
S/N:4TN00828     |
S/N:5AW00137     |
S/N:6WN00803     |
S/N:7HM00270     |
S/N:8DF00187     |
S/N:8EM00527     |
S/N:8RM00759     |
S/N:BRC00158     |
S/N:BRN00195     |
S/N:CTB00190     |
S/N:CTH00279     |
S/N:PWG00117     |
S/N:2SH00111     |
S/N:2SJ00112     |
S/N:2SK00106     |
S/N:2SL00140     |
S/N:2SM00104     |
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Effective Serial Numbers     |
3516     |
S/N:1HZ02645     |
S/N:1NW00145     |
S/N:2FW00338     |
S/N:2JW00412     |
S/N:3CW00258     |
S/N:4BW00571     |
S/N:6HN01720     |
S/N:7RN01953     |
S/N:8CN00212     |
S/N:8KN00579     |
S/N:9AN00373     |
S/N:9WF00118     |
S/N:BCK00284     |
S/N:CAN00111     |
S/N:CBN00322     |
S/N:CDE00313     |
S/N:CTA00153     |
S/N:CTG00287     |
S/N:CTJ00200     |
S/N:S2S00106     |
S/N:S2X00117     |
S/N:S2Y00104     |
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