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Allison Transmission Lubricant Capacities Transmission Model Refill Capacity * in Quarts (liters) MT–643 15.0 (14.2) MT–653 MD Series MD–3060 19.0 (18.0) MD–3560 HD Series (FL112 only) † HD–4060 36 (34) HD–4560 HD–4060P 39 (37) HD–4560P * Quantities listed are approximate. Add the recommended amount of fluid as listed under refill capacity, then perform a "hot check" and add fluid as † NOTE: Quantities listed are for a standard size (not shallow) oil pan. Table 5, Allison Transmission Lubricant Capacities 2. Operate the vehicle until the transmission 3. Clean the area around the drain plug and the 4. Remove the 12 mounting bolts (six each) from NOTE: A lot of fluid will drain when the filter 5. Remove the filter covers, O-rings, and two 6. Remove the filters from the bottom of the control 7. Lubricate the new O-rings with transmission fluid, 8. Install a new square-cut seal on each cover as- 9. Install the filter and cover assemblies into the 10. Align each cover assembly with the holes in the channel plate sump, and push the cover assem- CAUTION Do not use the bolts to draw the filter covers to 11. Install six bolts in each cover, and torque the bolts 38 to 44 lbf·ft (51 to 61 N·m). 12. Replace the drain plug O-ring, and install the drain plug. Tighten the drain plug 18 to 24 lbf·ft 13. Refill the transmission with fresh Dexron ® trans- mission fluid (see ) and check the fluid level. See for lubricant capacities. 14. Check and adjust the fluid level using the proce- dures under "Checking the Fluid Level." MT Series 1. Park the vehicle on a level surface. Apply the 2. Start the engine and check that the transmission 3. Place a suitable container under the transmis- 4. Remove the nut that secures the oil filler tube to 5. Remove the 21 capscrews that secure the trans- 6. Clean the oil pan of any debris and residual fluid 7. Remove the washer-head capscrew that secures 8. Separate the filter intake pipe from the filter, dis- Transmission 26 26/8 |