2001/02/19 Caterpillar

Correction to Operation and Maintenance Manuals of 776D Tractors and 777D Off-Highway Trucks {3081, 3177, 5056}

Usage:

776D AFS

Off-Highway Truck/Tractor: 776D (S/N: AFS1-UP) 777D (S/N: AGC1-UP) 777D HAA (S/N: AGY1-UP)

Service Magazine, SEPD0556, 25 December 2000, "Correction to Operation and Maintenance Manuals of 776D Tractors and 777D Off-Highway Trucks". The information in this article is incorrect. Replace the article with the information that follows.Operation and Maintenance Manual, SEBU6757, "776D Tractor and 777D Off-Highway Truck", "Transmission Tank Oil Level - Check". The information in this section is incorrect. Replace the section with the information that follows.Operation and Maintenance Manual, SEBU7114, "777D HAA Off-Highway Truck", "Transmission Tank Oil Level - Check". The information in this section is incorrect. Replace the section with the information that follows.Operation and Maintenance Manual, SEBU7261, "776D Tractor and 777D Off-Highway Truck", "Transmission Tank Oil Level - Check". The information in this section is incorrect. Replace the section with the information that follows.Operation and Maintenance Manual, SEBU7268, "777D HAA Off-Highway Truck", "Transmission Tank Oil Level - Check". The information in this section is incorrect. Replace the section with the information that follows.

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Illustration 1	g00765371

Check the oil level in the transmission tank. Check the oil level with the dump body in the lowered position. Check the oil level with the engine stopped.

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Illustration 2	g00765375
Lower transmission sight gauge

Before the engine is started and while the oil is cold, the oil must be in the GREEN RANGE of the lower transmission sight gauge.

Note: If the system has been drained, the engine must be stopped and oil must be added several times.

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Illustration 3	g00765406
Upper transmission sight gauge

Use the upper transmission sight gauge as the final check. The oil must be at the "FULL" mark of the upper transmission sight gauge under the following conditions:

the truck is on level ground.
the oil is at the normal operating temperature.
the engine is running at low idle.
the transmission is in neutral.
while the truck is on level ground, idle the engine for a minimum of 5 minutes.

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