2002/06/10 Caterpillar

Pipelayer:

561H (S/N: 6NL1-UP)

561M (S/N: 1KW1-UP)

572R (S/N: 2HZ1-UP; AAC1-UP)

578 (S/N: 8HB1-UP)

583R (S/N: 2XS1-UP)

589 (S/N: 31Z1-UP)

Track-Type Tractor:

D11N (S/N: 4HK1-UP; 74Z1-UP)

D11R (S/N: 7PZ1-UP; 8ZR1-UP; 9TR1-UP; 9XR1-UP; AAF1-UP)

D10 (S/N: 76X1-UP; 84W1-UP)

D10N (S/N: 2YD1-UP; 3SK1-UP)

D10R (S/N: 3KR1-UP; AKT1-UP)

D9L (S/N: 14Y1-UP)

D9N (S/N: 1JD1-UP; 5FJ1-UP; 6XJ1-UP)

D9R (S/N: 7TL1-UP; 8BL1-UP; ABK1-UP; ACL1-UP; JJB1-UP)

D8L (S/N: 4FB1-UP; 53Y1-UP; 7JC1-UP; 7YB1-UP)

D8N (S/N: 1XJ1-UP; 5TJ1-UP; 7TK1-UP; 9TC1-UP)

D8R (S/N: 7XM1-UP; 9EM1-UP)

D8R Series II (S/N: 6YZ1-UP; AKA1-UP)

D7H (S/N: 82Z1-UP; 80Z1-UP; 79Z1-UP; 5WB1-UP; 5BF1-UP; 4FG1-UP; 4AB1-UP; 3XG1-UP; 2SB1-UP; 2RG1-UP; 77Z1-UP)

D7H Series II (S/N: 82Z1-UP; 80Z1-UP; 79Z1-UP; 5WB1-UP; 5BF1-UP; 4FG1-UP; 4AB1-UP; 3XG1-UP; 2SB1-UP; 2RG1-UP)

D7R (S/N: 2EN1-UP; 2HR1-UP; 3DN1-UP; 3ZR1-UP; 4SR1-UP; 5KZ1-UP; 5MR1-UP; 6ER1-UP; 9HM1-UP; ABJ1-UP; ACS1-UP; ADW1-UP; AEC1-UP; AFG1-UP; AGN1-UP)

D6H (S/N: 5HF1-UP; 8FC1-UP; 6FC1-UP; 6CF1-UP; 4RC1-UP; 3ZF1-UP; 3YG1-UP; 1FJ1-UP; 4LG1-UP; 3YJ1-UP; 6JJ1-UP; 7ED1-UP; 7PC1-UP; 7ZK1-UP; 8KB1-UP; 8YC1-UP)

D6H Series II (S/N: 5HF1-UP; 8FC1-UP; 6FC1-UP; 6CF1-UP; 4RC1-UP; 3ZF1-UP; 3YG1-UP; 1FJ1-UP; 5HF1-UP; 4LG1-UP; 1KD1-UP; 1YL1-UP; 2BL1-UP; 2DK1-UP; 2KD1-UP; 2TG1-UP; 2TL1-UP; 3ED1-UP; 4GG1-UP; 4YF1-UP; 5KK1-UP; 6CK1-UP; 8KK1-UP; 8SK1-UP; 8ZJ1-UP; 9KJ1-UP; 9LK1-UP; 9RK1-UP)

D6R (S/N: 1RW1-UP; 2HM1-UP; 2YN1-UP; 3ZN1-UP; 4FM1-UP; 4HN1-UP; 4JR1-UP; 4MN1-UP; 4TR1-UP; 4WR1-UP; 5LN1-UP; 5PR1-UP; 5RR1-UP; 6FR1-UP; 6GR1-UP; 6HR1-UP; 6JN1-UP; 6MR1-UP; 7AR1-UP; 7DR1-UP; 7GR1-UP; 7KN1-UP; 8LN1-UP; 8TM1-UP; 8XN1-UP; 9BM1-UP; 9MN1-UP; 9PN1-UP; 9ZS1-UP)

D6R Series II (S/N: AAX1-UP; ADE1-UP; AEP1-UP; AGM1-UP; BLE1-UP; BLT1-UP; BMJ1-UP; BMY1-UP; BNC1-UP)

Reference: Operation and Maintenance Manual, SEBU6250, "Caterpillar Machine Fluids Recommendations"

Description of Change: Caterpillar has developed new oil to use in some final drives. An SAE 60 viscosity grade final drive axle oil (FDAO) is now recommended for some final drives.

Adaptable To: The oil is adaptable to the D6, D7, D8, D9, D10, and D11 Track-Type Tractors that are listed above. Also, the oil is adaptable to the Pipelayers that are listed above.

The FDAO is compatible with Duo-Cone toric seal rings. Through an improved additive package, the FDAO will improve the life of the bearings and the life of the gears.

For the D11R, the service interval for the oil change remains at 500 hours. The service interval for oil sampling remains at 250 hours.

For all D6, D7, D8, D9, D10, and D11N Track-Type Tractors and all Pipelayers, the service interval for the oil change remains at 2000 hours. The service interval for oil sampling remains at 500 hours.

See Table 1 for part numbers that are used to order the FDAO.

Table 1

FDAO Part Numbers
Gallons
Viscosity	5 Gallon	55 Gallon	Bulk
SAE 50	184-6025	184-6024	184-6023
SAE 60	184-6022	184-6021	184-6020
Liters
Viscosity	20 Liter	208 Liter	Bulk
SAE 50	104-8052	184-8053	184-8051
SAE 60	184-8055	184-8056	184-8054

Caterpillar oil is not the only oil that is available. Commercial oil is also available. This oil is called commercial FD-1 oil, and this oil may be substituted for Caterpillar FDAO.

FDAO/FD-1 oils and TDTO/TO-4 oils are compatible and the oils can be mixed together. However, any such blending of oil significantly reduces the benefits of using the FDAO.

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NOTICE
Caterpillar FDAO (SAE 60) oil is recommended for maximum component life for the final drive assemblies.

Note: FDAO is NOT recommended for final drives which contain clutches, brakes, or any compartment that contains friction materials. Also, FDAO should NOT be used in engines, transmissions, or hydraulic systems. Refer to Operation and Maintenance Manual, SEBU 6250, "Caterpillar Machine Fluids Recommendations" for additional information on selecting fluids.

Lubricant Viscosity

In the second quarter of 2002, Operation and Maintenance Manual, SEBU 6250, "Caterpillar Machine Fluids Recommendations" will be updated in order to reflect new oil viscosity recommendations for large Track-Type Tractors and Pipelayers. This change is an effort to emphasize the importance of basing the selection of the lubrication viscosity on the application of the machine as well as the ambient temperature. Illustration 1 and Table 2 reflect the changes that will appear in Operation and Maintenance Manual, SEBU 6250-12, "Caterpillar Machine Fluids Recommendations".

Selecting the Viscosity of a Lubricant

Refer to Table 2 under the column that has the title "Application". Choose the type of application that best describes your operating conditions. The recommendation of lubrication viscosity for your machine is to the right of the selected application. If both descriptions are applicable, use the "Severe or Contiuous Usage" recommendations. Then refer to the columns that have the title "Min" and "Max" in order to determine the proper viscosity grade of oil. The "Min" column indicates the coldest ambient air temperature for starting and operating a cold machine. The "Max" column indicates the highest anticipated ambient air temperature that will be experienced while the machine is in operation. Use the highest oil viscosity that is allowed for the ambient air temperature at the start-up of the machine and the operation of the machine.

The information that is in Table 2 can also be found in Illustration 1. To determine the proper grade of viscosity of the oil by using Illustration 1, choose the application that is applicable for your operating conditions. If the descriptions in both arrows are applicable, use the "Severe or Contiuous Usage" recommendations. Use the highest viscosity that is allowed for the ambient air temperature at the start-up of the machine and the operation of the machine.

Temperatures that are in the range with footnote (1) in the following illustration - The white dashed bars that are on the black bars represent a minimum pour temperature. Oil that is below this temperature will no longer pour. If an idle machine is below this temperature, exercise the machine for several minutes prior to production operation. This will allow the oil to warm up to operating temperature. Then, oil will begin to flow before the stresses of production operation are placed on the final drive.

Consult your dealer about the selection of oil when the machine is operated in ambient air temperatures that are below -25 °C (-13 °F).

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NOTICE
Use only TDTO/TO-4 oil in the power train. Do not use FDAO or TDTO/TO-4 oil in the engine.

Table 2

Final Drive Oil Viscosities for Large Track-Type Tractors, Pipelayers, and Track Skidders
Compartment or System	Application	Oil Type and Classification	Oil Viscosity	°C		°F
				Min	Max	Min	Max
Final Drives for Large Track-Type Tractor, Pipelayer, and Track Skidder (3)	Moderate or Intermittent Usage	Caterpillar FDAO (2) commercial FD-1 (2) Caterpillar TDTO commercial TO-4 Caterpillar TMS	SAE 60	-7	50	19	122
			SAE 50	-15	32	5	90
			SAE 30	-25	15	-13	59
			TMS	-35	15	-31	59
	Severe or Continuous Usage (Multiple Shifts per Day)	Caterpillar FDAO (2) commercial FD-1 (2) Caterpillar TDTO commercial TO-4 Caterpillar TMS	SAE 60	-25 (1)	50	-13 (1)	122
			SAE 50	-33 (1)	14	-27 (1)	58
			SAE 30	-40 (1)	0	-40 (1)	32
			TMS	-40 (1)	0	-40 (1)	32

( 3 )	This information is applicable to machines that have steel tracks and elevated drive sprockets except for D5M and D6M Track-Type Tractors.
( 2 )	Caterpillar FDAO or commercial FD-1 oil is the preferred type oil that will maximize the life of the gear and the bearing. Do NOT use FDAO or FD-1 in compartments that contain friction material, clutches, or brakes. TDTO, TO-4, or TMS oil types must be used in any compartment that contains friction material.
( 1 )	Exercise the final drive for several minutes with the engine at half throttle in order to warm up the oil prior to production operation.

Illustration 1	g00896022