Draining

m2+ m 26.05.000

Eaton Fuller has a complete listing of approved lubricants for its transmissions on its internet website. Refer to the Eaton website for additional information, www.roadranger.com .

Important:  Manual transmissions filled with approved synthetic lubricants require a lubricant drain and fill, and a magnetic plug cleaning every 500,000 miles (800 000 km), regardless of the service or vocation of the vehicle. Manual transmissions with petroleum-based lubricants require a lubricant drain and fill, and a magnetic plug cleaning at each Maintenance 2 (M2) interval. All transmissions, regardless of lubrication used, also require a check of the transmission breather at each Maintenance 1 (M1) interval.

  1. Park the vehicle on a level surface. Apply the parking brakes and chock the rear tires.
  2. Drain the fluid while the transmission is warm, as follows.
    1. Clean the area around the drain plug(s). Remove the drain plug(s) from the gear case.
    2. Clean the area around the fill plug or the dipstick tube. Remove the fill plug from the gear case, if applicable.
  3. Clean the magnetic plug(s) before installing it. Use a piece of key stock, or any other convenient steel slug, to short the two magnetic poles and divert the magnetic field.
  4. Install and tighten the drain plug(s) 50 lbf·ft (68 N·m).
Note:
Document Number: 0000120383
Manual Publication Date: 2025-02-11
Topic Publication Date: 2024-11-06