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Bridge Wave Rectifier:A bridge wave rectifier utilises at least four diodes to control the flow of the current produced by the geneator. If we look at the wiring diagram for a simple bridge wave rectifier we can see that the input is coming in between two sets of diode pairs with anode to cathode configuration. this ensures that regardless of the direction of flow from the alternating input whether its negative or positive, the incoming current can only flow in one direction. Contributor: Lorcan McGivney, CP Fitters, January to May, 2012. | |
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Engine Coolant:Coolant is the liquid that absorbs heat from the engine and then dissipates it through the radiator. It can also dissipated through the cab heater in the drivning compartment of the vehicle. The main component of coolant is water, for the following reasons:
Pure water as coolant does have the following disadvantages:
Water as coolant does have big advantages, that is why we use it, but we must add things to it, and do things to the environment in which we store and work it:
Checking CoolantAll modern cooling systems are sealed and as a result they shouldn’t ever really need topping up between car services provided everything in your vehicle’s engine is functioning correctly. It is a pressurised system and as such should only be checked or topped up when the vehicle's engine is cold. Benefits of coolant:
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ELCB:
Basically what it does is if the ELCB detects a voltage leak,it will open the circuit, stopping the machine from operating. | |
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>:> means greater than -example 2 > 1 < means less than - example 1 < 2 ≤ means less than or equal to. ≥ means greater than or equal to. | |
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λ:Lambda, a letter from the Greek alphabet. In automotive engineering, it is used to represent the stoichiometric ratio of the amount of air required to burn a fuel. For example, for diesel, the value is approximately 14.5:1, meaning that it takes 14.5 parts of air to burn 1 part of diesel. The stoichiometric ratio (sometimes referred to as the chemically correct air/fuel ratio) for petrol is approximately 14.7:1. | |
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1104D:
This engine has full electronic control of the fuel system - common rail with electronic injectors. As of April, 2012, we operate 3 of these engines. |
1106C:
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