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TUBE AS 3598776 - Caterpillar



3598776 TUBE AS Caterpillar parts TUBE
Rating:
21
Alternative (cross code) number:
CA3598776
359-8776
3598776
Caterpillar 3598776 TUBE AS

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Introduction
MARINE GEAR-SECTION REMOVED 1 Oil pump.2 Selector valve lever.3 Selector valve.4 Oil manifold.5 Oil pump drive shaft.6 Drive ring.7 Drive spider.8 Coupling flange.9 Astern clutch.10 Ahead clutch.11 Companion flange.12 Sump.The marine gear is attached to the engine flywheel housing and is coupled to the engine flywheel through a flexible coupling.Full power is transferred from the engine through the marine gear in either a forward or reverse rotation at a reduced speed to the propeller shaft.The diesel engine transmits power to the drive ring (6), to the drive spider (7), and into the marine gear. Since the drive ring is secured to the engine flywheel, these parts rotate in the same direction as the engine at all times.Back to back, hydraulically actuated clutches operate the forward and reverse drives. The selector valve (3) directs the flow of oil to either of the clutches for forward or reverse operation. The valve is operated by the lever (2) which can be manually or remotely controlled.The companion flange (11) on the propeller shaft connects to the coupling flange (8).Oil pressure for both the lubrication and the hydraulic systems in the marine gear is supplied by the oil pump (1) which is attached to the rear of the oil manifold (4) and driven by the shaft (5). The pump draws its oil supply from the sump (12).The drive spider (7), oil pump drive shaft (5), and oil pump (1) rotate in the same direction as the engine.The selector valve (3) controls the rotation of the coupling flange (8). This control is accomplished by shifting the selector valve lever (2) into ahead clutch drive, astern clutch drive, or neutral.The oil manifold (4) and the oil pump driv shaft (5) distribute oil from the selector valve to the lubricating system and the oil cooling system for the clutches and provide actuating oil for the ahead and astern clutches.Application
When a standard rotation engine (counterclockwise rotation as viewed from the flywheel) is driving through the marine gear and using a right-hand propeller, the rear-mounted clutch (1) will control ahead motion and the front-mounted clutch (2) will control astern motion.
STANDARD ROTATION APPLICATION WITH REAR-MOUNTED CLUTCH ENGAGED
1-Rear-mounted clutch. 2-Front-mounted clutch.When a reverse rotation engine (clockwise rotation as viewed from the flywheel) is driving through the marine gear and using a left-hand propeller, the rear-mounted clutch (1) will control the ahead motion and the front-mounted clutch (2) will control the astern motion.
REVERSE ROTATION APPLICATION WITH REAR-MOUNTED CLUTCH ENGAGED
1-Rear-mounted clutch. 2-Front-mounted clutch.Since most operation is in the ahead drive position, the applications which give forward motion with the rear-mounted clutch (1) engaged are recommended. These applications are recommended because one less gear is used in the power train.In twin-engine application, it is advisable to use one standard rotation engine and one reverse rotation engine. This provides for ahead motion through the rear-mounted clutch on both marine gears. Throughout the text of this manual, the rear-mounted clutch (1) will be referred to as the ahead driving clutch and the forward-mounted clutch


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