Proper lubrication measures 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 procedures in the world room not walk to save the transmission 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 be amply lubricated if these actions are closely followed:1. Keep oil level. Examine regularly.2. Readjust oil regularly.3. Use the correct grade and form of oil.4. Buy native a trustworthy dealer.

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Eaton Roadranger CD5O infection FluidHIGHWAY USE-Heavy Duty and Mid.RangeHeavy Duty Highway readjust IntervalMid.Range Highway readjust IntervalOFF-HIGHWAY USEHeavy Duty Engine Lubricant or Mineral equipment LubricantHIGHWAY USEOFF-HIGHWAY USE
First 3,000 come 5,000 miles (4827 to 8045 Km)Factory fill, initial drain
Every 10,000 miles (16090 Km)Check liquid level Check because that leaks
Every 250,000 miles (402336 km)Change transmission fluid
Every 100,000 mile (160,000 Km) or every 3 year whichever occurs firstChange transmission fluid
First 30 hoursFactory fill initial drain
Every 40 hoursInspect fluid level, examine for leaks
Every 500 hoursChange infection fluid where severe dirt conditions 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, examine for leaks
Every 50,000 miles (80450 Km)Change transmission lubricant
First 30 hoursChange transmission lubricant on brand-new units
Every 40 hoursInspect lubricant level, inspect for leaks
Every 500 hoursChange infection lubricant where major 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 gear Oil withrust oxidationinhibitor API-GL-19080WAbove 10°F (-12°C)Below 10°F (-12°C)

The usage of mild EP gear oil or multipurpose gear oil is not recommended, yet if these equipment oils space used, be sure to adhere come the complying with limitations:Do not usage mild EP gear oil or multipurpose equipment oil when operating temperature are above 230ºF (110ºC). Plenty of of these equipment oils, specifically 85W140, malfunction above 230ºF and coat seals, bearings and also gears v deposits the may reason premature failures. If these deposits room observed(especially a coating top top seal locations causing oil leakage), adjust to Eaton Roadranger CD5O infection fluid, heavy duty engine oil or mineral gear oil to guarantee maximum component life and to maintain your warranty v Eaton.(Also view “Operating Temperatures”.)Additives and also friction modifiers room not recommended for use in Eaton Fuller transmissions.

Proper Oil Level

Make certain oil is level through filler opening. Since you have the right to reach oil through your finger walk not average oil is at the suitable level. One customs of oil level is around one gallon that oil.

Draining Oil

Drain transmission while oil is warm. To drain oil remove the drain plug in ~ the bottom the the case. Clean the drainpipe plug prior to reinstalling.


Clean case about filler plug and also remove the plug from next of the case. Fill infection to the level that the filler opening. If the transmission has actually two filler openings, to fill to level of both openings.The precise amount of oil will rely on the transmission inclination and model. Do not overfill; this will reason oil to be required out that the transmission.When including oil, varieties and brand of oil must not be mixed because of possible incompatibility.

Operating Temperatures


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


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

With EP or Multipurpose equipment Oil

Mild EP equipment oil and also multipurpose gear oil are not recommended when lubricant operation temperatures are over 230ºF (110ºC). In addition, transmission oil coolers are not recommended v these equipment oils because the oil cooler products may be attacked by these gear oils. The lower temperature limit and also oil cooler restriction with these gear oils generally limit your success to milder applications.

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Proper Lubrication level as regarded Transmission surroundings AnglesIf the transmission operation angle is much more than 12 degrees, not correct lubrication can occur. The operating angle is the infection mounting edge in the chassis add to the percent of update (expressed in degrees).The graph illustrates the for sure percent of an update on i m sorry the transmission deserve to be offered with various chassis mounting angles. Because that example: if you have actually a 4-degree infection mounting angle, then 8 levels (or 14 percent the grade) is equal to the limit 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 the 12 levels is gone beyond for one extended duration of time the transmission should be equipped v an oil pump or cooler kit to ensure appropriate lubrication.Note ~ above the graph the impact low oil levels deserve to have top top safe operation angles. Allowing the oil level to autumn 1/2″ listed below the filler plug feet reduces the level of class by approximately 3 degrees (5.5 percent).


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