- a catastrophic failure has occurred.
3.Refilling-(Allison Auto)
The operational level should always be within the limit marks on the dipstick. The exact
amount of oil depends on the transmission inclination and model. Insufficient oil damages
the pump and other components, and can affect the function and reduce the life of the
transmission.
DO NOT OVERFILL!
This causes overheating and loss of fuel economy. When adding oil, types and brands of oil
should not be mixed because of possible incompatibility. When changing oil viscosity to
Arctic oil or alternate viscosity ranges, follow the recommended transmission oil flush
procedure. Use clean oil and clean containers when filling transmission. Containers that
have been used for anti-freeze or water should not be used for transmission oil.
1.
Remove the dipstick and slowly add seven (7) gallons of the prescribed oil through the
fill tube.
2.
Place the transmission in the neutral position and apply the parking brakes. Start the
engine and let it idle for 5 minutes, (this allows oil to fill the converter, main case, and
cooling system), add oil as needed to obtain a level at the proper temperature range,
(cold band under 120°F, hot band between 180 and 220°F). Total oil quantity needed
at this time should be approximately 10 gallons this varies depending on the cooling
system.
3. Increase the engine idle slowly to 1500 RPM for two (2) minutes. Now recheck the oil
level at normal idle speed in neutral, again adding oil to obtain a level at the proper
temperature range (cold band under 100°F, hot band between 180 and 220°F).
4. Replace the dipstick and tighten securely.
4. Flush Procedure
1. Disconnect the transmission cooler supply line between the transmission outlet and
the oil cooler, (not between the cooler and the transmission oil pan).
2. With clean dry air from a hose and nozzle (20 psi), use a rubber stopper or clean rag to
seal the air hose to the converter outlet hose.
3. Apply air to the converter outlet for approximately 2 minutes to backflush oil into the
transmission oil pan
4. Connect the hose between the transmission and cooler. Tighten to vehicle
manufacturers specifications.
5. Install the transmission converter housing oil pan drain plug, tighten to 14-20 Lb, ft of
torque.
6. Install the transmission main case drain plug (rear bottom), tighten I to 45-50 Lb, ft of
torque.
7. Remove the transmission dipstick and slowly pour 7 gallons of the appropriate oil into
the transmission.
339P/N 12261-683 REVISED: January 2015
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