Transmission Lubrication (Freewheel Stator)
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| Illustration 1 | g02581337 |
Lubrication of the Transmission Planetary (1) Housing assembly (2) Oil passage (3) Bearing (4) Bearing (5) Housing (6) Oil manifold (7) Oil inlet (8) Passage (9) Passage (10) Oil chamber (11) Passage (12) Passage (13) Passage (14) Passage (15) No. 6 planetary shafts (16) Bearing (17) Bearing (18) No. 1 planetary shafts (19) Coupling (20) Bearing (21) No. 2 and No. 3 planetary shafts (22) Ring gear for No. 2 clutch (23) Bearing (24) Passage (25) Oil chamber (26) No. 4 planetary shafts (27) Passage (28) Passage (29) Rotating hub (30) Ring gear for No. 4 clutch (31) Bearing (32) Ring gear for No. 6 clutch (33) Bearing | |
All outlet oil from the torque converter oil cooler goes through a line to oil inlet port (7) on oil manifold (6). The oil goes through passage (10) in manifold (6). The oil flows through passage (2). Passage (2) is a series of passages through the clutch housings.
Some of the oil that flows through passage (2) flows through passage (11). The oil flows into oil chamber (10) at the front of the transmission.
Most of the oil from oil chamber (1) flows to the No. one planetary shafts (18). No. one planetary shafts (18) have drilled passages which allow the oil to flow to the bearings. The oil flows around the shaft bearings. Oil flows out of the holes in the ends of shafts (18). Then, the oil flows to bearing (20). The remainder of the oil flows through holes in coupling (19) and ring gear (22). The flow through coupling (19) and ring gear (22) lubricate the discs and the plates of the No. 1 and No. two clutches.
Some of the oil from passage (2) also flows through passage (12) to an area between the planetary housing and the torque converter housing. Oil in this area lubricates bearings (16) and (17). The oil also flows through passage (14) in the output shaft of the torque converter. This oil also flows through passage (13) in the transmission input shaft.
Next, oil flows into the area between the input shaft and the output shaft. This oil lubricates bearings (23) and (33). Oil flows from the area between the input shaft and the output shaft through passage (24). From passage (24), the oil flows into oil chamber (25) and the oil lubricates bearings (3) and (4). The oil in chamber (25) also flows into No. 2 and No. three planetary shafts (21) and the oil also flows into planetary shafts (26) .
No. 2 and No. three planetary shafts (21) have drilled passages in order to allow the oil to flow to the bearings. The oil flows around the shaft bearings. The oil is also used in order to lubricate the discs and the plates of the No. 3 clutch.
No. four planetary shafts (26) have drilled passages in order to allow the oil to flow to the bearings. The oil flows around the shaft bearings. The oil is also used in order to lubricate the discs and the plates of the No. 4 clutch.
Oil flows from the area between the input shaft and the output shaft through passage (27). From passage (27), the oil flows through passage (28). From passage (28), the oil flows through holes in rotating hub (29). From hub (29) oil flows to lubricate the discs and the plates of clutch No. five. The oil also flows through holes in ring gear (30) in order to lubricate the discs and the plates of clutch No. four.
Oil from the transmission oil cooler enters lubrication passages. From passage (9), the oil flows into the passages of planetary shafts (15) .
No. six planetary shafts (15) have drilled passages which allow the oil to flow to the bearings. The oil flows around the planetary shaft bearings and flows through holes in ring gear (32). This oil lubricates the discs and the plates of the No. 6 clutch.
Lubrication pressure for standard transmission at 133 ± 40 kPa (19 ± 5.8 psi) with torque converter outlet oil temperature at 83.5° ± 6.5°C (182° ± 11°F)
Lubrication pressure for heavy-duty transmission at 352.5 ± 52.5 kPa (51 ± 7 psi) with torque converter outlet oil temperature at 83.5° ± 6.5°C (182° ± 11°F)
All clutch oil leakage and return lubrication oil goes to the bottom of the transmission case. This oil goes to the main oil reservoir in the output gear case.