CABLE AS 2073711 - Caterpillar

CUTAWAY VIEW OF SOLID STATE MAGNETOThe solid state magneto utilizes non-wearing electronic switching to handle high surge currents and insures ignition at the highest of combustion chamber pressures. With solid state ignition, energy storage and voltage step up are accomplished separately by the use of electronic switching. This system eliminates breaker points, contactors, and brushes. There is no arcing and only minimum wear. An electromagnetic spark advance is used. An ignition spark of high intensity is produced to fire the air-fuel charge under all operating conditions.The alternator creates a voltage as the magnet rotor is driven by the engine through a drive coupling. The alternating current is rectified and stored in a capacitor (4). A zener diode, on the power board, regulates the capacitor voltage level for proper firing. As the pulser rotor (8) passes each pulser coil (trigger circuit) (7), a triggering voltage is produced and sent to the electronic switch (silicon-controlled rectifier) (9) for the firing cylinder. The switch is then 'turned on' and allows the capacitor (4) to discharge, through the distribution board (5), the low voltage high current impluse to the ignition transformer. In turn, the transformer produces a high voltage low current impulse which is sent across the spark plug electrodes. This same process recurs as the pulser rotor passes each pulser coil.Test the solid state magneto output by the spark delivered at the spark plug terminal.Ignition Transformers
The ignition transformers step up the magneto voltage to the high voltage required to fire the spark plugs. For good operation, the terminals must be clean and tight. The transformer terminal marked + (positive) is connected by a wire to the magneto plug connector marked G.
Do not pierce the insulation on the high voltage wire to the spark plug. A hole in the insulation will cause misfiring.
Spark Plugs And Adapters
Natural gas engine spark plugs use a dual ground electrode. This allows the spark plug to run longer before it needs to be regapped or replaced.The boot covers the high tension lead and the terminal portion of the spark plug. This prevents water, dirt and other foreign material from getting into the spark plug adapter. Starting And Charging Systems
The electrical system is a combination of three separate electric circuits: the charging circuit, the starting circuit and the lighting or load circuit. Each circuit is dependent on some of the same components. The battery (batteries), ammeter, cables and wires from the battery are common in each of the three circuits.The charging circuit is in operation when the engine is operating. The electricity producing (charging) unit is a generator or alternator. A regulator in the circuit senses the state of charge in the battery and regulates the charging unit output to keep the battery fully charged.The starting circuit operates only when the start switch is actuated.The low amperage load and charging circuits are both connected on the same side of the ammeter while the starting circuit connects to the other side of the ammeter.System Components
Generator
The generator keeps the battery