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| | | F:T*N | | |
| | | Airflex Engine Clutches | | |
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| | | Engine Clutch Arrangements | | |
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| | | For direct engine drive applications, the standard arrangement (Forms CB408 and CB427) uses an external flange drum mounted to the engine flywheel. The clutch element and its spider are fastened to a separate bearing supported jackshaft as shown in the figure. When the clutch mounts on an engine stub shaft or on the output shaft of a torque converter, then the standard gap mounting arrangements (Forms CB406 and CB407) are used. Clutch Engagement Speed The recommended clutch engagement speed is 3000 fpm (15,2 mps) at the friction couple. If the speed at engine idle exceeds this value, then the idle speed should be changed. | | |
| | | Typical Spider Engine-Mounted Application | | |
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| | | Engine Clutch Control | | |
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| | | To ensure clutch engagement at engine idle, the control shown below is recommended. | | |
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| | | Relay Valve | | |
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| | | snap acting sequencing passes air only when pilot pressure exceeds a set pressure (100 PSI) | | |
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| | | Pneumatically Controlled Engine Governor/Throttle | | |
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| | | Pilot connection should be located as close to the clutch as possible | | |
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| | | Pilot | | |
| | | Supply Pressure (110 PSI) | | |
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| | | Control Valve | | |
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| | | 2 port compound Port A: instant on/off Port B: modulated pressure with lever position | | |
| | | This control system prevents the engine speed from increasing before the pressure in the clutch reaches a preset value. | | |
| | | CB Clutch | | |
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| | | X-3 | | |
| | | Copyright Eaton Corporation, 1997, All rights reserved. | | |
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