Twin Disc HP 300, 600 service manual - Morbark

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Description and Specifications Bearing Journal Seal Contact Surface M N Shaft Minimum Diameter Minimum Diameter Part Number mm. inches mm. inches 30 Table 8. Bearing Journals and Seal Contact Surfaces on Shafts Seal Contact Surface P Minimum Diameter mm. inches Twin Disc, Incorporated Seal Contact Surface Q Minimum Diameter mm. inches #1020660b 70.1010 2.7563 107.7341 4.2415 101.4095 3.9925 95.0595 3.7425 #1020678c 70.1010 2.7563 107.7341 4.2415 101.4095 3.9925 95.0595 3.7425 #1020678d 70.1010 2.7563 107.7341 4.2415 101.4095 3.9925 95.0595 3.7425 #1020678e 70.1010 2.7563 107.7341 4.2415 101.4095 3.9925 95.0595 3.7425 #1020678f 70.1010 2.7563 107.7341 4.2415 101.4095 3.9925 95.0595 3.7425 #1020678g 70.1010 2.7563 107.7341 4.2415 101.4095 3.9925 95.0595 3.7425 N Seal Contact Surface Shaft Typical Model 300S & 600S Shaft Bearing Journal Seal Contact Surface Bearing Journal J K L Shaft Minimum Diameter Minimum Diameter Minimum Diameter Part Number mm. inches mm. inches mm. inches #1020660b 120.523 4.7450 130.0988 5.1220 120.0581 4.7267 #1020678c 71.374 2.8100 130.0988 5.1220 120.0581 4.7267 #1020678d 80.010 3.1500 130.0988 5.1220 120.0581 4.7267 #1020678e 80.010 3.1500 130.0988 5.1220 120.0581 4.7267 #1020678f n/a n/a n/a n/a 139.7406 5.5016 #1020678g n/a n/a n/a n/a 139.7406 5.5016 P Seal Contact Surface J Bearing Journal Q Seal Contact Surface K Seal Contact Surface L Bearing Journal M Bearing Journal Shaft Typical Model 300I & 600I Shaft Hydraulic Power Take-off Service Manual
Twin Disc, Incorporated Operation General Power Take-off Service Manual Operation A Flexible Torsional Input Coupling is bolted to the engine flywheel. The coupling’s internal spline meshes with an external spline on the drive gear. External teeth on a series of Clutch Friction Plates are in constant contact with internal teeth of the drive gear. These and related components comprise the basic input drive portion of the Power Take-off and are in rotation at engine speed whenever the engine is running. A series of internally splined Steel Clutch Plates are located between the Clutch Friction Plates. Their internal teeth mesh with external teeth on the Clutch Hub, which is, in turn, splined to the Clutch Shaft. These and related components comprise the basic output portion of the Power Take-off and are in rotation when partial or full clutch is engagement occurs (see below). The Back Plate is contained within the Clutch Piston forming an operating cavity into which high-pressure oil is directed by the GP Control Valve. A Piston Carrier, located inside the Clutch Piston separates the clutch-engagement side from the brake-engagement side of the cavity. Multiple accessory drives (on some models) are in rotation whenever the engine is running. Their output speed is always the same as engine speed. The General Purpose (GP) Control Valve with its electronic interface is used to obtain brake engagement, coast, and clutch engagement in this hydraulic power take off. When these positions are selected by the operator, and the proper conditions exist, the control valve directs high-pressure oil through internal passages to instantaneously and smoothly apply the brake, or to engage the hydraulic clutch. The pressure-rate of rise, controlled by the electronic module, provides a rapid, smooth, clutch engagement. On initial startup and service, closely monitor the pressure while starting the engine to ensure that the pump primes. Do not run the engine for longer than 10 seconds if measurable main pressure does not register. 31
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SEE NOTE "B" SEE NOTE "C" PLUG, MA1
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#1021542 0804 TWIN DISC, INCORPORAT
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Twin Disc HP 300, 600 service manual - Morbark

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