Gear Oil, Draining And Filling, Transfer Case
Special tools and workshop equipment required
- Used Oil Collection and Extraction Unit SMN372500
- Protective eyewear
Work Sequence:
- The gear oil in the transfer case was drained.
- The center differential housing was removed and all of the gear oil drained.
- Move vehicle onto a four-pillar workshop hoist or over a work pit so that it is absolutely horizontal.
- The transmission must be still for at least 15 minutes to make sure the oil settles internally.
- Gear oil temperature: approximately 20 °C (68 °F) (room temperature).
- Tightening specification, refer to OVERVIEW - CENTER DIFFERENTIAL .
General repair instructions, refer to GENERAL REPAIR INFORMATION .
Clean working conditions for the automatic transmission, refer to GUIDELINES FOR CLEAN WORKING CONDITIONS .
-- Place the Used Oil Collection and Extraction Unit SMN372500 under the transmission.
Danger of eye injury.
- Wear protective eyewear.
-- Remove the sealing plug -arrow- on the side of the transfer case.
Do not start the engine or tow the vehicle if there is no gear oil in the transmission.
- Transmission fluid, allocate correct fluid.
-- Fill the transfer case with gear oil slowly and evenly over a period of least 5 minutes until gear oil flows out at the lower edge of the filling opening.
A filling time of at least 5 minutes is required so that the internal oil level between the center differential and oil fill space can equalize.
-- Repeat the filling process in steps every 15 seconds with 50 ml of gear oil until the transfer case stops accepting gear oil.
The inside of the transfer case is divided into several oil chambers. The waiting period is necessary to ensure they are all filled evenly.
Replace the drain plug and gasket.
- Specified value: The level is correct when the transmission fluid comes up to the bottom edge of oil filler hole.
-- Tighten the new sealing plug.
It is not necessary to check the oil level again at this stage.