Selection of the Oil Change Interval
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A 500 hour engine oil change interval is available, provided that operating conditions and recommended multigrade oil types are met. When these requirements are not met, shorten the oil change interval to 250 hours, or use an S·O·S oil sampling and analysis program to determine an acceptable oil change interval. If you select an interval for oil and filter change that is too long, you may damage the engine. |
Cat oil filters are recommended.
Recommended multigrade oil types are listed in Table 1. Do not use single grade oils.
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| Illustration 1 | g00753767 |
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API trademark Commercial oils that are licensed by the American Petroleum Institute (API) bear this trademark. Commercial oils that do not bear this trademark are not licensed and these oils are not recommended. Oils that are not listed in Table 1 are not recommended. | |
Abnormally harsh operating cycles or harsh environments can shorten the service life of the engine oil. Arctic temperatures, corrosive environments, or extremely dusty conditions may require a reduction in engine oil change intervals from the recommendations in Table 1. Also refer to Special Publication, SEBU5898, "Cold Weather Recommendations". Poor maintenance of air filters or of fuel filters requires reduced oil change intervals. See your AVSpare dealer for more information if this product will experience abnormally harsh operating cycles or harsh environments.
| 385B and 385B L
Engine Oil Change Interval(1) |
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| Multigrade Oil Type | Operating Conditions | |||
| Severe | ||||
| Normal(2) | High Load Factor(3) above |
Fuel Sulfur from 0.3% to 0.5% | Altitude above |
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| (4) | ||||
| Cat DEO
Preferred |
500 hr | 500 hr | 500 hr | 250 hr(6) |
| API CH-4
11.0 minimum TBN(4) Preferred |
500 hr | 500 hr | 500 hr | 250 hr(6) |
| API CH-4
TBN(4) below 11.0 |
500 hr | 500 hr | 250 hr(5) | 250 hr(6) |
| API CG-4 | 500 hr | 250 hr(5) | 250 hr(5) | 250 hr(6) |
| API CF-4 | 250 hr(5) | 250 hr(6) | 250 hr(6) | 250 hr(6) |
| (1) | The traditional oil change interval for engines is 250 hours. The standard oil change interval in this machine is 500 hours, if the operating conditions and recommended oil types that are listed in this table are met. Improvements in the engine allow this engine oil change interval. This new standard interval is not permitted for other machines. Refer to the applicable Operation and Maintenance Manuals for the other machines. |
| (2) | Normal conditions include these factors: Fuel sulfur below 0.3%, altitude below |
| (3) | High load factors can shorten the service life of your engine oil. Continuous heavy load cycles and very little idle time result in increased fuel consumption and oil contamination. These factors deplete the oil additives more rapidly. If the average fuel consumption of your 385B or 385B L exceeds |
| (4) | For sulfur content above 0.5%, refer to Special Publication, SEBU6250, "AVSpare Machine Fluids Recommendations", "Total Base Number (TBN) and Fuel Sulfur Levels for Direct Injection (DI) Diesel Engines" . |
| (5) | In order to verify an oil change interval of 500 hours, refer to "Program A" below. |
| (6) | Use "Program B" below to determine an appropriate interval. |
Adjustment of the Oil Change Interval
Note: Your AVSpare dealer has additional information on these programs.
Verification for an Oil Change Interval of 500 Hours
This program consists of three oil change intervals of 500 hours. Oil sampling and analysis is done at 250 hours and 500 hours for each of the three intervals for a total of six oil samples. The analysis includes oil viscosity and infrared (IR) analysis of the oil. If all of the results are satisfactory, the 500 hour oil change interval is acceptable for the machine in that application. Repeat Program A if you change the application of the machine.
If a sample does not pass the oil analysis, take one of these actions:
- Shorten the oil change interval to 250 hours.
- Proceed to Program B.
- Change to a preferred oil type in Table 1.
Optimizing Oil Change Intervals
Begin with a 250 hour oil change interval. The oil change intervals are adjusted by increments. Each interval is adjusted an additional 50 hours. Periodic oil sampling and analysis is done during each interval. The analysis includes oil viscosity and infrared (IR) analysis of the oil. Repeat Program B if you change the application of the machine.
If an oil sample does not pass the analysis, shorten the oil change interval, or change to a preferred multigrade oil type in the listing above.
Reference: Form, PEDP7035, "Optimizing Oil Change Intervals"
Reference: Form, PEDP7036, "S·O·S Fluid Analysis"
Reference: Form, PEHP7076, "Understanding the S·O·S Oil Analysis Tests"
Procedure for Changing Engine Oil and Filter
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Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact the skin. |
Park the machine on a level surface. Stop the engine.
Note: Drain the crankcase while the oil is warm. This allows waste particles that are suspended in the oil to drain. As the oil cools, the waste particles will settle to the bottom of the crankcase. The particles will not be removed by draining the oil and the particles will recirculate in the engine lubrication system with the new oil.
- Remove the bolts and the washers. Remove the crankcase drain valve access cover.
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Illustration 3 g00807634 Note: Refer to Operation and Maintenance Manual, "General Hazard Information" for information that pertains to containing fluid spillage.
- Open the crankcase drain valve. Allow the oil to drain into a suitable container.
Note: Dispose of drained fluids according to local regulations.
- Close the drain valve.
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Illustration 4 g00278210 - Unlatch the engine hood and raise the engine hood.
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Illustration 5 g00807638 - Remove the oil filter with a strap type wrench.
Note: Dispose of the used oil filter according to local regulations.
- Inspect the oil filter. See Operation and Maintenance Manual, "Oil Filter - Inspect".
- Clean the filter housing base. Make sure that all of the old filter gasket is removed.
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Illustration 6 g00101634 - Apply a thin coat of engine oil to the gasket of the new filter.
- Install the new filter by hand. When the gasket contacts the filter base, turn 3/4 turns more. This will tighten the filter sufficiently.
Every new oil filter has four rotation index marks. Each mark indicates 1/4 turn. Use the rotation index marks as a guide for tightening the oil filter.
- Install the crankcase drain valve access cover with the bolts and the washers.
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Illustration 7 g00807604 - Unscrew the oil filler plug and remove the oil filler plug.
- Fill the crankcase with new oil. See Operation and Maintenance Manual, "Capacities (Refill)".
- Clean the oil filler plug and install the oil filler plug.
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NOTICE Do not under fill or overfill engine crankcase with oil. Either condition can cause engine damage.
Show/hide tableNOTICE Operating your engine when the oil level is above the "FULL" mark could cause your crankshaft to dip into the oil. The air bubbles created from the crankshaft dipping into the oil reduces the oil's lubricating characteristics and could result in the loss of power.
- Start the engine and allow the oil to warm. Check the engine for leaks. Stop the engine.
- Wait for 30 minutes so that the oil can drain back into the crankcase, before you check the oil.
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Illustration 8 g00807603 - Remove the dipstick. Wipe the oil off the dipstick and reinsert the dipstick.
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Illustration 9 g00807601 - Remove the dipstick again. Make sure that the oil level is between the "ADD" and "FULL" marks on the "ENGINE STOPPED" side of the dipstick.
- Close all access doors.
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| Illustration 2 | g00839455 |
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The crankcase drain valve is located under the rear of the upper structure. | |
