New Gear Pump Groups are Now Used on the 777G Off-Highway Trucks {5073} Caterpillar

New Gear Pump Groups are Now Used on the 777G Off-Highway Trucks {5073}

Usage:

777G GT7

Off Highway Truck: 777G (S/N: GT71-UP; T5A1-UP; TNM1-UP; RDR1-UP; T4Y1-UP)
Water Delivery System: CAT WDS (S/N: M6J1-UP)

Description Of Change: The hoist and brake pump group has been updated for the 777G machines. The updated pump group include improved bushings that will increase service life.

Adaptable To:

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Illustration 1	g03874531
Section view of a 455-9312 Gear Pump Gp (A) Hoist Section Bushings (B) Brake Cooling Section Bushings (C) Brake Section Bushings (D) Brake Charging Section (E) Brake Cooling Section (F) Hoist Pump Section

The new 455-9312 Gear Pump Gp is adaptable to, and became effective in production with the machines listed in Table 1.

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Table 1
Truck Model Pump Groups
Model	777G
New Pump Group	455-9312 Gear Pump Gp
Former Pump Group	375-0678 Gear Pump Gp
New Brake Charging Section	455-9315 Gear Pump Gp
Former Brake Charging Section	386-7330 Gear Pump Gp
New Brake Cooling Section	460-7283 Gear Pump Gp
New Brake Cooling Section Bushing	456-3687 Bushing
Former Brake Cooling Section Bushing	4T-9298 Bushing
New Brake Charging Bushing	456-3687 Bushing
Former Brake Charging Bushing	329-1381 Bushing
New Hoist Section	460-7292 Gear Pump Gp
Former Hoist Section	267-7463 Gear Pump Gp
New Hoist Bushing	446-6589 Bushing
Former Hoist Bushing	9T-7034 Bushing
Machine Adaptability	(S/N: RDR1-343; TNM1-867; T4Y1-205; T5A1-119; M6J1-125; GT71-155)
Machine Effectivity	(S/N: RDR344-UP; TNM868-UP; T4Y206-UP; T5A120-UP; M6J126-UP; GT7156-UP)