MAINTENANCE 60
Be sure to add oil to the transmission through the filler hole, NOT the magnetic filter plug hole. Damage to the transmission and seals may occur due to overfilling. The magnetic oil filter hole is higher on the transmission case than the filler hole.
Magnetic Oil Filter Plug Remove the magnetic oil filter plug and clean the magnet in the plug every time the oil is changed. Reinstall the magnetic plug. Tighten the plug to 27–31 N•m (20–23 lb-ft) torque.
Air Breather(s) The T313–T318(L)(LR)(21)(L21)(LR21) transmissions have one air breather, located on the main case shift cover. The air breather should be removed and cleaned with a suitable solvent every time the oil is changed. Also check to be sure that airflow through the breather is unobstructed. Reinstall breather into the main case shift cover and tighten until snug. The optional three-position (compound neutralizing) range shift cylinder contains a breather vent screen which should be cleaned any time the main case shift cover is cleaned. The following figure shows the breather vent removed (1) and installed (2). Check the breather vent for free airflow. Clean or replace as necessary.
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Figure 60 — Shift Cylinder Breather Vent Shown Removed (1) and Installed (2)
