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35–01 Axle Lubricant Level Check CAUTION Failure to keep the rear axle filled to the proper 1. Clean the oil fill hole plug, located in the carrier NOTE: Some Meritor axles have a small tapped housing oil fill hole. This smaller hole is for the 2. With the vehicle on level ground, lubricant must If low, add lubricant. See for approved axle lubricants and see for axle capaci- ties. 3. Install the fill hole plug, and tighten it 35 lbf·ft (47 Meritor Drive Axle Recommended Lubricant Recommended Ambient Temperature Lubricant SAE Viscosity Grade Meritor Specification Hypoid Gear Oil API +10°F (–12.2°C) and up * 85W–140 0-76-A –15°F (–26.1°C) and up * 80W–140 0-76-B –15°F (–26.1°C) and up * 80W–90 0-76-D –40°F (–40°C) and up * 75W–90 0-76-E –40°F (–40°C) to +35°F (+2°C) 75W 0-76-J –40°F (–40°C) and up * 75W–140 0-76-L Synthetic Gear Oil –40°F (–40°C) and up * 75W–90 0-76-N –40°F (–40°C) and up * 75W–140 0-76-M * There is no upper limit on these ambient temperatures, but axle sump temperature must never exceed 250°F (121°C). Table 1, Meritor Drive Axle Recommended Lubricant Meritor Drive Axle Lubricant Capacities, Single Axles Axle Type Axle Model Capacity * pints (liters) Axle Type Axle Model Capacity * pints (liters) Single † RS-17-145 33.6 (15.9) Single † RS-21-230 39 (18.5) RS-17-220 31 (14.7) RS-23-160 42 (19.9) RS-19-145 34.4 (16.3) RS-23-161 37.2 (17.6) RS-19-220 31 (14.7) RS-23-186 45 (21.3) RS-21-145 32 (15.1) RS-23-240 RS-21-160 39.5 (18.7) RS-26-185 * Quantities listed are approximate and include 1 pint (0.5 liter) for each wheel end and with the drive pinion at 3 degrees. † Single drive axles equipped with traction equalizers may require a "friction modifier" to correct a slip-stick condition. Meritor’s experience shows that the fol- lowing additives perform adequately: Add Elco No. 2 Friction Modifier (1 ounce [30 mL] of additive for each 1 pint [0.5 liter] of lube capacity) or Lubrizol No. 797 Table 2, Meritor Drive Axle Lubricant Capacities, Single Axles Rear Axle 35 Cargo Maintenance Manual, January 2000 35/1 |