Eaton Fuller Manual and Automated

sd plus mm 26.03.001

Notice: Operating a transmission with the fluid level higher or lower than recommended can result in transmission damage. Do not overfill the transmission. Overfilling will force fluid out of the case through the main shaft openings. Fluid overflow may also drain onto the clutch or clutch brake, causing additional problems.

Do not mix types and brands of fluid, because of possible incompatibility. Do not use fluid additives, friction modifiers, extreme-pressure gear fluids, or multiviscosity lubricants.

  1. Park the vehicle on a level surface, apply the parking brakes, and chock the tires.
  2. Check the oil level in the transmission as follows.
    1. Clean the area around the fill plug, then remove the plug from the side of the case.
    2. Using your finger or a bent pipe cleaner, see if the oil is level with the lower edge of the fill opening. See Fig..

      1. Full

      2. Low

      Fig. 1, Checking Transmission Fluid Level

  3. If needed, fill the transmission with oil until level with the lower edge of the fill opening. For approved lubricants, see Table. (manual transmissions) or Table. (automated transmissions). For more information and a complete listing of approved lubricants, refer to the Eaton website, www.roadranger.com.

    Table 1, Eaton Approved Manual Transmission Lubricants

    Eaton Approved Manual Transmission Lubricants

    Lubricant Type1

    Temperature: °F (°C)

    SAE Viscosity

    Synthetic transmission lubricant meeting Eaton PS-386 lubricant specification

    All

    —

    Heavy-duty engine oil meeting MIL-L-2104D or Caterpillar TO-4 Specification

    Above 10 (–12)

    40 or 50

    Below 10 (–12)

    30
    1. Lubricants listed in order of preference. Do not mix types of oil.

    Table 1, Eaton Approved Manual Transmission Lubricants

    Table 2, Eaton Approved Automated Transmission Lubricants

    Eaton Approved Automated Transmission Lubricants

    Lubricant Type1

    Temperature: °F (°C)

    SAE Viscosity

    Synthetic transmission lubricant meeting Eaton PS-386 lubricant specification

    All

    —
    1. Do not mix types of oil.

    Table 2, Eaton Approved Automated Transmission Lubricants

  4. Clean the fill plug, then install it in the transmission. Tighten the plug as follows:

    • 25 to 35 lbf·ft (34 to 48 N·m) for Eaton Fuller transmissions with 3/4-inch pipe threads.

    • 60 to 75 lbf·ft (81 to 102 N·m) for Eaton Fuller transmissions with 1-1/4-inch pipe threads.

Note:
Parent topic: Transmission Fluid Level Checking
Document Number: 0000121167
Manual Publication Date: 2024-06-03
Topic Publication Date: 2024-10-31