Change Transmission-Hydraulic Oil and Filter
Lower rockshaft to remove trapped oil.
The approximate transmission case oil capacity is 38 L (10 gal)
Remove drain plug (C) from transmission case (A) and drain out oil.
Replace filter (B) while changing oil. Apply a film of oil to new filter gasket and install new filter. Hand tighten only.
Fill system with transmission-hydraulic oil. (See Fuels, Lubricants and Coolant section.)
38 L (10 gal)
Check oil level at dipstick (D) after filling, and again after operating for five minutes.