4. Slide the oil pan gasket and oil pan over the guide bolts and hold them in place while installing two of the bolts to hold the parts in place. 5. Install the remainder of the 12 bolts that fasten the oil pan to the main housing (two will replace the guide bolts). Tighten the bolts to 24–29 N·m (18–21 lb ft). 6. Reinstall the drain plug and sealing washer. Tighten the drain plug to 30–40 N·m (22–30 lb ft). 7. Replace the quantity of transmission fluid lost during the gasket replacement process. Refer to MT3190EN for fluid fill and check procedures.
6–8. SUCTION FILTER AND SEAL REPLACEMENT Use the following procedure for removal and installation of the suction filter and seal. Replacement is usually not necessary except at overhaul (see Figure 6–6). a. Removal. NOTE: It would be helpful to know how much transmission fluid is lost during the replacement of the suction filter and seal. Fluid in good condition caught in a clean container may be reused. 1. Remove the drain plug and sealing washer from the oil pan and allow the fluid to drain into a suitable container. Examine the fluid as described in MT3190EN. 2. Remove the 12 bolts that fasten the oil pan to the main housing. Hold the oil pan in position as the last bolt is removed. 3. Remove the oil pan and oil pan gasket. Check the magnet in the oil pan. Be sure that excessive or large metallic particles are not present. These conditions would indicate that an overhaul may be required. 4. Remove the suction filter by pulling straight down where the suction tube is seated in the main housing. 5. Remove the suction seal from the filter or from the seal bore in the main housing. Discard the old seal and the filter, if it is being replaced. b. Installation. 1. Place a new seal on the suction filter tube. The seal should locate against a shoulder on the suction filter tube. CAUTION: If a shallow pan and filter were removed, reinstall a shallow pan and filter. If a deep pan and filter were removed, reinstall a deep pan and filter. Transmission damage can occur if the correct oil pan and filter are not installed. 2. Push the filter and seal into the seal bore in the main housing. Be sure the suction filter is properly positioned. 53
