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| Illustration 1 | g03670729 |
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Transmission lubrication oil flow through cooler (TP) Transmission hydraulic pump (1) Return oil from cooler into transmission planetary (2) Transmission main relief valve (3) Torque converter outlet relief valve (4) Heat exchanger for the transmission hydraulic oil (5) Engine coolant | |
Transmission lubrication oil is supplied by transmission pump (1). Hydraulic oil from torque converter outlet relief (3) flows through heat exchanger (4). Engine coolant (5) provides cooling for the heat exchanger. Return oil from heat exchanger (4) enters transmission lubrication port (1).
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| Illustration 2 | g03670731 |
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Transmission lubrication through transmission planetary (1) Return oil from cooler into transmission planetary (A) Passage for Clutch 1 and for Clutch 2 lubrication (B) Planetary shafts supply lubrication passage to Clutches 3, 4, and 5. ( The 826K has no clutch 4, so the 826K has no 3rd gear.) | |
Oil entering passage (1) flows through a formed passage in the planetary group. Part of the oil is directed through drilled passage (A) for lubrication to clutch 1 and clutch 2. Most of the oil will flow through planetary shafts (B) for clutches 3, 4, and 5. Refer also to Illustration 4.
Note: The 826K has no clutch 4, so the 826K has no 3rd gear.
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| Illustration 3 | g03670737 |
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Top view of transmission showing lube to T/C, clutch 6, and pump drive (6) Lube line for clutch 6 (7) Lube line for the pump drive (8) Lube manifold, and lube passage to the torque converter (9) Line from transmission main relief valve | |
Oil from main transmission relief valve (2) is directed to lube manifold (8). Most of the oil from manifold (8) is directed down for torque converter lubrication. Part of the oil is directed to lube line (6) for clutch 6 lubrication, and lube line (7) for pump drive lubrication. Refer also to Illustration 4 and Illustration 5.
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| Illustration 4 | g03670735 |
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Transmission planetary (B) Transmission planetary gear shafts, supply lubrication passage to Clutches 3, 4, and 5. ( The 826K has no clutch 4, so the 826K has no 3rd gear.) (6) Lube line for clutch 6 (Line 6 is illustrated along a cutting plane line. Line 6 is actually located on the top side of the transmission) (11) Transmission input shaft (CL1) Clutch 1 (CL2) Clutch 2 (CL3) Clutch 3 (CL4) Clutch 4 (CL5) Clutch 5 (CL6) Clutch 6 | |
Illustration 4 shows a section view of the transmission planetary. Oil in the formed passage in Illustration 2 flows through planetary gear shafts (B). This oil flows through subsequent planetary shafts providing lubrication to the all clutches except clutch 6.
Clutch 6 is lubricated through lube line (6). Refer also to Illustration 5.
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| Illustration 5 | g03670738 |
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Torque converter lube passage (6) Lube line for clutch 6 (7) Lube line for the pump drive (8) Lube manifold (10) Lube passage for T/C | |
Oil from the transmission main relief flows to manifold (8). Manifold (8) divides oil between clutch 6, the pump drive, and torque converter lubrication.
Part of the oil from manifold (8) is directed to passage (6) to lube clutch 6.
Part of the oil from manifold (8) is also directed to line (7) to lubricate the pump drive.
The bulk of the oil from manifold (8) is directed downward through a passage in the torque converter housing. This oil passes through the torque converter to the T/C outlet valve. The T/C leakage (pump drive lube, lockup clutch leakage, and gear and bearing lube), drains to the bottom of the T/C case. This oil then drains into the transmission case and into the transfer gear case.
New Forced Lubrication to the Cylindrical Roller Bearings on Idler Gear
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| Illustration 6 | g03678435 |
| (11) Cylindrical idler bearing (behind cover) | |
The idler bearing on the transmission is a cylindrical roller bearing. Oil from the planetary lubrication inlet also supplies lube oil to the front and rear of idler bearing (11). Passages in the OTG housing and the bearing cage allow oil to the bearings.