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SEVERE MACHINE DAMAGE—Severe machine damage can result if the low speed drive
engages during or at the end of extract.
Immediately lock OFF and tag out power at the wall disconnect if any of the following occur:
☞
The machine makes a sound like skidding automobile tires as it comes out of extract;
☞
The wash or drain clutch does not disengage or prematurely engages during extract;
☞
The wash, drain, extract, or main drive belts jump off at the start of, during, or at the end
of extract;
☞
Strange sounds occur during extract.
☞
DO NOT permit the machine to operate until the cause is found and remedied.
Ë
How the Centrifugal Switch Works
The centrifugal switch (used on Mark II machines) opens at speeds above drain. After E2 terminates, the
switch closes as soon as the cylinder slows sufficiently, enabling the controller to engage the wash clutch.
Ê
How the Machine Reverses
The wash/E1 motor periodically stops and reverses direction during washing and rinsing. Machines are
equipped with either single-phase or three-phase motors, each using a different method to reverse rotation. Two
relays (CRWAC and CRWAA) operate to change the cylinder direction. These relays are actuated so that only one
operates at a time. CRWAC causes clockwise rotation, CRWAA causes counterclockwise rotation.
Ë
Cylinder Reversal for Single-Phase Machines
—Rotation of single-phase motors is selected by
changing the polarity of the start winding. Relays CRWAC and CRWAA perform this action automatically.
Ë
Cylinder Reversal for Three-Phase Machines
—Rotation of three-phase motors is selected by ex-
changing two of three phased leads. Relays CRWAC and CRWAA automatically swap leads through a switching
process, thus changing rotational direction. There is a brief dwell period (generally less than three seconds) during
each change of direction. The cylinder is stationary during this time.
B
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Страница 19: ...Section 1 Service and Maintenance ...
Страница 51: ...Section 2 Drive Assemblies ...
Страница 57: ...BMP920027 93251V Page 1 MOTOR MOUNT ASSEMBLY 30015 30020 30022 RIGID MOUNT WASHER EXTRACTORS DRIVE ASSEMBLIES ...
Страница 59: ...BMP950003 95107V Page 1 MOTOR MOUNT 30015 30020 S4A S4G S4J S4T ...
Страница 68: ......
Страница 69: ...Section 3 Bearing Assemblies ...
Страница 72: ...BMP910032 96141V Page 1 MAIN BEARING ASSEMBLY 30015C4x M4x K5x S5x ...
Страница 74: ...BMP910033 96141V Page 1 MAIN BEARING ASSEMBLY ...
Страница 76: ...BMP910034 95116V Page 1 MAIN BEARING ASSEMBLY 30015M6x ...
Страница 80: ...BMP910035 93251V Page 1 JACKSHAFT ASSEMBLY 30015 30020 30022 RIGID MOUNT WASHER EXTRACTORS ...
Страница 82: ......
Страница 83: ...Section 4 Shell and Door Assemblies ...
Страница 86: ...BMP920009 94491V Page 1 DOOR ASSEMBLY 30015 30020 RIGID MOUNT WASHER EXTRACTORS ...
Страница 90: ......
Страница 91: ...Section 5 Control and Sensing Devices ...
Страница 100: ...BMP920010 97281V Page 1 COIN ASSEMBLY INSTALLATION 240V 30015 30020 30022 COIN MACHINES ...
Страница 105: ...Section 6 Chemical Supply Devices ...
Страница 113: ...Section 7 Water and Steam Piping and Assemblies ...
Страница 114: ...ISOMETRIC SYMBOLS STANDARD SYMBOLS BMP920008 93027V Page 1 SCHEMATIC SYMBOLS KEY ...
Страница 115: ...BMP920015 96132V Page 1 WATER STEAM DRAIN SCHEMATICS 30015 30020 30022 RIGID MOUNT WASHER EXTRACTORS ...
Страница 132: ...BMP920021 93251V Page 1 STEAM INSTALLATION 30015 30020 30022 RIGID MOUNT WASHER EXTRACTORS ...
Страница 136: ...BMP920020 93251V Page 1 DRAIN VALVE INSTALLATION 30015 30020 30022 RIGID MOUNT WASHER EXTRACTORS ...
Страница 138: ...BMP920017 93251V Page 1 ELECTRIC DRAIN VALVE 30015 30020 30022 RIGID MOUNT WASHER EXTRACTORS ...
Страница 139: ...Section 8 Pneumatic Piping and Assemblies ...