GEAR 6Y1000 - Caterpillar

Illustration 1 g03866785
Lubrication of the Planetary Gears (Typical Example)
(1) Holes
(2) Bearing
(3) Passage
(4) Passage
(5) Holes
(6) Bearing
(7) Hole
(8) Cavity
(9) Passage
(10) Bearing Cage
(11) Bearing
(12) Passage
(13) Passage
(14) Passage
(15) Orifice
(16) Bearing
(17) Cavity
(18) Passage
(19) Passage
(20) Input Shaft
(21) Output Shaft
(22) Passage
(23) Passage
(24) Passage
(25) Bearing
(26) Passage
(27) Shaft
(28) Hole
(29) Shaft
(30) Shaft
(31) Holes
Illustration 2 g03868825
Right Side View of the Case for the Transmission
(32) Inlet for the lubrication oil
(33) Passage
(34) Inlet to the Output Transfer Gearbox
(35) Manifold Part of the oil from the power train oil coolers is used for lubrication of the planetary gears. The oil flows into the case of the transmission at inlet (32). The oil flow then divides. Part of the oil flows through inlet (34) to the output transfer gearbox. The remainder of the oil then flows through passage (33) to manifold (35). The manifold is at the rear of the transmission.The oil flows through manifold (35) into cavity (17) in the bearing retainer. Oil then flows into passage (19) in input shaft (20) of the transmission. Some of the oil in cavity (17) flows through passage (24) in order to lubricate bearings (16) and (24).Oil that flows into passage (19) in the input shaft is sent through passages (14), (18), and (22). This oil lubricates the components of the transmission planetary. Oil in passage (22) also lubricates the two bearings in the output shaft.Oil from passage (18) flows into passage (26) and into shafts (30) in order to lubricate the No. "1" planetary gears. Oil which is thrown from the planetary gears flows through holes (31) in the ring gear. The oil is used for lubrication and