- Track Feller Buncher:
- TK711 (S/N: 1011-UP)
- TK721 (S/N: 1021-UP)
- TK722 (S/N: 1031-UP)
- TK732 (S/N: 1041-UP)
- TK741 (S/N: 2021-UP)
- TK751 (S/N: 3011-UP)
- TK752 (S/N: 3021-UP)
Selecting the Viscosity
Ambient temperature is the temperature of the air in the immediate vicinity of the machine. This may differ due to the machine application and from the generic ambient temperature for a geographic region. In order to select the proper oil viscosity, review the regional ambient temperature and the potential ambient temperature for a given machine application. Use the higher temperature of the two ambient temperatures in order to select the oil viscosity. Generally, use the highest oil viscosity that is allowed for the ambient temperature when you start the machine. For arctic applications, the preferred method is the use of properly sized heaters for machine compartments and a high viscosity oil. Thermostatically controlled heaters that circulate the oil are preferred.
The proper oil viscosity grade is determined by the minimum outside ambient temperature. This is the temperature when the machine is started and while the machine is operated. In order to determine the proper oil viscosity grade, refer to the "Min" column in the table. This information reflects the coldest ambient temperature condition for starting a cold machine and for operating a cold machine. Refer to the "Max" column in Table 1 in order to select the oil viscosity grade for operating the machine at the highest temperature that is anticipated. Unless otherwise specified in Table 1, use the highest oil viscosity that is allowed for the ambient temperature in the "Lubricant Viscosities for Ambient Temperatures" table when you start the machine.
Machines that are operated continuously should use oils that have the higher oil viscosity in the final drives and in the differentials. The oils that have the higher oil viscosity will maintain the highest possible oil film thickness. Consult your dealer if additional information is needed.
Note: SAE 0W oil and SAE 5W oils where allowed for use in non-hydraulic system compartments are not recommended for use in heavily loaded machines or machines that are operated continuously. These viscosity grades are not recommended for use in hydraulic hammers. The oils that have the higher oil viscosity will maintain the highest possible oil film thickness. Consult your dealer if additional information is needed.
Note: The oil viscosity grade selection is also machine compartment specific. Some machine models and/or machine compartments do not allow the use of all available viscosity grades. For guidance on selecting the oil viscosity, refer to the "Lubricant Viscosities for Ambient Temperatures" table and the associated footnotes in the table.
Lubricant Viscosities for Ambient Temperatures
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These recommendations are subject to change without notice. Contact your local dealer for the most up to date recommendations. |
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In selecting oil for any engine application, both the oil viscosity and oil performance classification/specification as specified by the engine manufacturer must be defined and satisfied. Using only one of these parameters will not sufficiently define oil for an engine application. |
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Proper oil viscosity AND oil type/classification are required to maximize machine compartment performance and life. Do NOT use only oil viscosity, or only oil type to determine the machine compartment oil selection. Refer to the "Lubricant Viscosities for Ambient Temperatures" table and to ALL of the associated footnotes. |
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The footnotes are an integral part of the "Lubricant Viscosities for Ambient Temperatures" tables - read ALL footnotes! |
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In colder ambient conditions a machine warm-up procedure may be required. Machine specific warm-up procedures can typically be found in the Operation and Maintenance Manual for the machine. |
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Do NOT use only the "Oil Viscosities" column when determining the recommended oil for a machine compartment. The "Oil Type and Classification" column MUST also be used. |
Note: Supplemental heat is recommended for cold soaked starts below the minimum ambient temperature. In addition, supplemental heat may be required for cold soaked starts at ambient temperatures that are above the minimum temperature that is stated. This depends on the parasitic load and other factors.
Note: Use the oil type and the classification that is recommended for the various machine compartments.
Note: Some machine compartments allow the use of more than one oil type. For the best results, do not mix oil types.
Note: Different brands of oils may use different additive packages. For the best results, do not mix oil brands.
Note: Caterpillar oil is the preferred oil. All other listed oils are acceptable oils.
| Lubricant Viscosities for Ambient Temperatures | ||||||
| Compartment or System | Oil Type and Classification | Oil Viscosities | °C | °F | ||
| Min | Max | Min | Max | |||
| Engine Crankcase | Cat DEO Multigrade API CI-4 Multigrade (1) API CH-4 Multigrade (1) API CG-4 Multigrade (2) API CF-4 Multigrade (3) |
SAE 0W20 | -40 | +10 | -40 | +50 |
| SAE 0W30 | -40 | +30 | -40 | +86 | ||
| SAE 0W40 | -40 | +40 | -40 | +104 | ||
| SAE 5W30 | -30 | +30 | -22 | +86 | ||
| SAE 5W40 | -30 | +50 | -22 | +122 | ||
| SAE 10W30 (4) | -18 | +40 | 0 | +104 | ||
| SAE 10W40 | -18 | +50 | 0 | +122 | ||
| SAE 15W40 | -9.5 | +50 | +15 | +122 | ||
| Hydraulic System, Swing Motor and Travel Motor Systems | Cat HYDO Cat DEO Cat MTO Cat TDTO-TMS Cat BIO HYDO (HEES) API CI-4 (5) API CH-4 (5) API CG-4 API CF-4 API CF commercial TO-4 commercial BF-1 (8) (9) |
SAE 0W20 | -40 | +40 | -40 | +104 |
| SAE 0W30 | -40 | +40 | -40 | +104 | ||
| SAE 5W30 | -30 | +40 | -22 | +104 | ||
| SAE 5W40 | -30 | +40 | -22 | +104 | ||
| SAE 10W | -20 | +40 | -4 | +104 | ||
| SAE 30 | +10 | +50 | +50 | +122 | ||
| SAE 10W30 | -20 | +40 | -4 | +104 | ||
| SAE 15W40 (6) | -15 | +50 | +5 | +122 | ||
| Cat MTO (7) | -25 | +40 | -13 | +104 | ||
| Cat BIO HYDO (HEES) (8) (9) |
-40 | +43 | -40 | +110 | ||
| Final Drive and Swing Drive | Cat TDTO Cat TDTO-TMS commercial TO-4 |
SAE 0W20 | -40 | 0 | -40 | +32 |
| SAE 0W30 | -40 | +10 | -40 | +50 | ||
| SAE 5W30 | -30 | +10 | -22 | +50 | ||
| SAE 10W | -30 | 0 | -22 | +32 | ||
| SAE 30 | -25 | +25 | -13 | +77 | ||
| SAE 50 | -15 | +50 | +5 | +122 | ||
| TDTO-TMS | -30 | +25 | -22 | +77 | ||
| Track Rollers and Idlers | Cat DEO API CI-4 API CH-4 API CG-4 API CF-4 API CF |
SAE 30 | -20 | +25 | -4 | +77 |
| SAE 40 | -10 | +40 | +14 | +104 | ||
| SAE 5W40 | -35 | +40 | -31 | +104 | ||
| ( 1 ) | API CI-4 and CH-4 oils are acceptable if the requirements of Caterpillar's ECF-1 (Engine Crankcase Fluid specification-1) are met. CI-4 and CH-4 oils that have not met the requirements of Caterpillar's ECF-1 Specification may cause reduced engine life. |
| ( 2 ) | API CG-4 oils are acceptable for all Caterpillar diesel engines. When the API CG-4 oils are used, the oil drain interval should not exceed the standard oil drain interval for your machine engine.. |
| ( 3 ) | API CF-4 oils are not recommended for Caterpillar 3500 series diesel engines. For all other machine diesel engines, the oil drain interval should not exceed 50 percent of the standard oil drain interval for your engine with a maximum interval of 125 hours. |
| ( 4 ) | SAE10W-30 is the preferred viscosity grade for the C-9 diesel engines when the ambient temperature is between -18 °C (0 °F) and 40 °C (104 °F). |
| ( 5 ) | API CI-4 and CH-4 oils are acceptable if the requirements of Caterpillar's ECF-1 (Engine Crankcase Fluid specification-1) are met. |
| ( 6 ) | SAE 15W40 is the recommended viscosity grade for the hydraulic hood tilt system. |
| ( 7 ) | Cat MTO is the preferred viscosity grade for the hydraulic hood tilt system when the ambient temperature is below -15 °C (+5 °F) and does not go above 40 °C (104 °F). |
| ( 8 ) | Commercial Biodegradable Hydraulic Oil (HEES) must meet the Cat BF-1 specification. The listed ambient temperature range is for the current Cat BIO HYDO (HEES), not for commercial BF-1 oil. |
| ( 9 ) | Refer to the machine Operation and Maintenance Manual or contact your local dealer before using Biodegradable Hydraulic Oil (HEES) or commercial BF-1 oil in Hydraulic Excavators. |