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HOSE AS 2278734 - Caterpillar

2278734 HOSE AS Caterpillar parts TH330B HOSE
Alternative (cross code) number:
Caterpillar 2278734 HOSE AS

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Compatible equipment models: 2278734:

TELEHANDLER  TH330B   Caterpillar
Number on catalog scheme: 7
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Illustration 1 g00301291
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 g00301292
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 group. 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 cooling of the No. 1 clutch.Some of the oil that flows through passage (14) is used for lubricating bearing (6) . The oil also flows through passage (12) and into shafts (29) in order to lubricate the bearings for the No. 2 and No. 3 planetary gears. Excess oil in passage (12) flows through four passages (not shown) in bearing cage (10) into cavity (8) . The oil in cavity (8) flows through hole (7) . The oil then flows through holes (5) in the coupling gear for lubrication and cooling of the No. 2 clutch.Oil flows through passage (22) into the area between the input shaft and the output shaft. Some of this oil is used for lubrication of the bearings in each end of output shaft (21) . The remainder of the oil flows to passages (4)

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