TM 5-3805-260-24
TRANSMISSION LUBRICATION SYSTEM
TRANSMISSION LUBRICATION SYTEM
1.Case for output transfer
4. Case for input transfer
6. Lubrication relief valve.
10. Screen.
gears.
gears.
7. Pressure section of oil
11. Torque converter
2.Transmission hydraulic
5. Scavenge section of oil
housing.
controls.
pump.
8. Magnetic strainer.
12. Oil cooler.
3.Oil filter for transmission.
9. Transmission case.
The oil for the operation and lubrication of the
transmission is made available by the pressure section
(7) of the oil pump. The scavenge section (5) of the oil
pump sends oil from the reservoir of torque converter
housing to the reservoir for the transmission. The two
section pump is turned by a drive gear which is engaged
with a gear that is fastened to the impeller of the torque
converter.
The reservoir of the torque converter is in the bottom
of torque converter housing (11). The reservoir for the
transmission is in the bottom of case for output gears (I).
The oil is pulled by’ pressure section (7) of the oil
pump to the magnetic strainer (8) Which separates
foreign material from the pump inlet oil. The oil goes to
the pump through an external line. The oil goes from the
pump through oil filter (3) to the transmission hydraulic
controls (2). If there is a restriction in the oil filter, or if
the viscosity of the oil is very high, the bypass valve in
the housing of oil filter (3) A ill open. This action lets the
oil go past the filter element to the transmission hydraulic
controls.
Valves in the transmission hydraulic controls send the
oil to the clutches in the transmission and to the torque
converter. Oil that is not needed to fill the clutches is
sent into the torque converter. From the torque
converter, the oil goes through an oil cooler (12) to the
lubrication relief valve (6) on the output transfer gear
case. The lubrication relief valve prevents too high
pressure oil from going to the planetary transmission.
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