Proper lubrication procedures are the an essential to a great all-around maintenance program. If the oil is no doing that job, or if the oil level is ignored, all the maintenance steps in the world are not going to save the infection running or assure lengthy transmission life.Eaton Fuller transmissions room designed so that the internal parts operate in a bathtub of oil circulated by the motion of gears and shafts.Thus, all components will it is in amply lubricated if these steps are closely followed:1. Keep oil level. Inspect regularly.2. Adjust oil regularly.3. Usage the correct grade and form of oil.4. Buy indigenous a dependable dealer.

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Eaton Roadranger CD5O infection FluidHIGHWAY USE-Heavy Duty and also Mid.RangeHeavy Duty Highway readjust IntervalMid.Range Highway adjust IntervalOFF-HIGHWAY USEHeavy Duty Engine Lubricant or Mineral gear LubricantHIGHWAY USEOFF-HIGHWAY USE
First 3,000 come 5,000 miles (4827 to 8045 Km)Factory fill, early drain
Every 10,000 miles (16090 Km)Check fluid level Check because that leaks
Every 250,000 miles (402336 km)Change infection fluid
Every 100,000 miles (160,000 Km) or every 3 year whichever wake up firstChange infection fluid
First 30 hoursFactory to fill initial drain
Every 40 hoursInspect fluid level, inspect for leaks
Every 500 hoursChange infection fluid where major dirt problems exist
Every 1,000 hoursChange transmission fluid (Normal off-highway use)
First 3,000 to 5,000 miles (4827 to 8045 Km)Factory fill, initial drain
Every 10,000 miles (16090 Km)Inspect lubricant level, inspect for leaks
Every 50,000 miles (80450 Km)Change transmission lubricant
First 30 hoursChange infection lubricant on new units
Every 40 hoursInspect lubricant level, inspect for leaks
Every 500 hoursChange transmission lubricant where severe dirt conditions exist
Every 1,000 hoursChange infection lubricant (Normal off-highway use)

TypeGrade (SAE)Fahrenheit(Celcius)Ambient TemperatureEaton Roadranger CD50 transmission Fluid50All
Heavy Duty Engine OilMIL-L-2104B, C, or D orAPI-SF or API-CD(Previous API designations acceptable)504030Above 10°F (-12°C)Above 10°F (-12°C)Below 10°F (-12°C)
Minral equipment Oil withrust oxidationinhibitor API-GL-19080WAbove 10°F (-12°C)Below 10°F (-12°C)

The usage of soft EP gear oil or multipurpose gear oil is not recommended, but if these equipment oils space used, be certain to adhere come the following limitations:Do not use mild EP equipment oil or multipurpose equipment oil when operating temperature are over 230ºF (110ºC). Many of these gear oils, an especially 85W140, breakdown above 230ºF and also coat seals, bearings and gears through deposits that may cause premature failures. If these deposits space observed(especially a coating ~ above seal locations causing oil leakage), change to Eaton Roadranger CD5O transmission fluid, hefty duty engine oil or mineral gear oil to guarantee maximum ingredient life and to keep your warranty v Eaton.(Also check out “Operating Temperatures”.)Additives and also friction modifiers space not recommended for usage in Eaton Fuller transmissions.

Proper Oil Level

Make sure oil is level with filler opening. Since you deserve to reach oil through your finger does not median oil is at the ideal level. One inch of oil level is about one gallon the oil.

Draining Oil

Drain transmission while oil is warm. To drain oil remove the drain plug at the bottom that the case. Clean the drain plug before reinstalling.


Clean case around filler plug and also remove the plug from side of the case. Fill transmission to the level that the filler opening. If the transmission has actually two filler openings, fill to level the both openings.The specific amount that oil will depend on the transmission inclination and model. Do not overfill; this will cause oil come be required out the the transmission.When adding oil, varieties and brand of oil should not it is in mixed since of possible incompatibility.

Operating Temperatures


– through engines that 350 H.P. And above with overdrive transmission


– with engines 399 H.P. And over with overdrive transmissions and GCWs over 90,000 lbs.– through engines 399 H.P. And above and 1400 Lbs.-Ft. Or better torque– with engines 450 H.P. And also above

With EP or Multipurpose equipment Oil

Mild EP gear oil and multipurpose equipment oil are not recommended once lubricant operating temperatures are above 230ºF (110ºC). In addition, transmission oil coolers are not recommended with these gear oils since the oil cooler materials may be attacked by these gear oils. The lower temperature limit and also oil cooler restriction with these equipment oils generally limit their success to milder applications.

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Proper Lubrication levels as pertained to Transmission surroundings AnglesIf the transmission operating angle is much more than 12 degrees, wrong lubrication have the right to occur. The operating angle is the transmission mounting angle in the chassis add to the percent of upgrade (expressed in degrees).The graph illustrates the safe percent of an update on i beg your pardon the transmission have the right to be provided with miscellaneous chassis mounting angles. For example: if you have a 4-degree infection mounting angle, then 8 degrees (or 14 percent that grade) is same to the border of 12 degrees. If you have a 0-degree mounting angle, the transmission can be operated on a 12 level (21 percent) grade.Anytime the transmission operation angle that 12 degrees is gone beyond for an extended period of time the transmission should be equipped with an oil pump or cooler kit come ensure appropriate lubrication.Note top top the graph the impact low oil levels deserve to have on safe operating angles. Permitting the oil level to loss 1/2″ below the filler plug feet reduces the level of great by roughly 3 levels (5.5 percent).


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