A New Differential Ring Gear Is Now Used {3256, 3258, 3281}
- Off-Highway Truck:
- 773B (S/N: 63W1-UP)
- Quarry Truck:
- 775B (S/N: 7XJ1-UP)
- 773D (S/N: 7ER1-UP; 7CS1-UP)
- 773E (S/N: BDA1-UP)
- 775E (S/N: BEC1-UP)
- 775D (S/N: 6KR1-UP; 8AS1-UP)
Description of Change: A new differential ring gear is now used. The new ring gear is shot peened and a new heat treating is used. The new ring gear can offer improved service life in extreme applications.
Adaptable To: The 277-7213 Differential Ring Gear is a direct replacement for the 7I-5900 Differential Bevel Gear which is no longer used.
The new gear is effective with 773E (S/N: BDA1072-UP) and 775E (S/N: BEC709-UP). The new gear is adaptable to all earlier machines that are equipped with a 7I-5900 Differential Bevel Gear.
Caterpillar Information System:
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2006/02/06 Correction to Disassembly and Assembly , "Differential and Bevel Gear (Center) - Assemble" {3256, 3258}
2006/02/06 Correction to Disassembly and Assembly , "Differential and Bevel Gear (Front and Rear) - Assemble" {3256, 3258}
2006/01/30 Correction to Disassembly and Assembly , "Differential and Bevel Gear (Center) - Assemble" {3256, 3258}
2006/01/30 Correction to Disassembly and Assembly , "Differential and Bevel Gear (Front and Rear) - Assemble" {3256, 3258}
2006/02/06 Correction to Disassembly and Assembly , "Differential and Bevel Gear (Front and Rear) - Assemble" {3256, 3258}
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