Slide (39 of 85)
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Here is a view of the bottom of the scrubber tank. The water scrubber system is required to be drained and flushed on each shift that the machine is operated. The safety component system of the scoop is equipped with a shutdown valve located in the scrubber which activates when a predetermined low water level in the scrubber is reached. Activation of the valve causes the engine to stop by shutting off fuel to the engine. The bottom of the scrubber is equipped with a plug, as shown, that can be used to drain the water to determine the level of water at which the valve will activate, causing the engine to shut down. This is accomplished by draining the water to the point at which the engine stops and then quickly reinserting the plug. The level of water can then be measured from the top of the scrubber (at the scrubber fill port with a dipstick) and compared with manufacturer’s requirements to determine if the low water level shutdown valve is properly adjusted. The proper level of water at shutdown for the Wagner scoop is at least 5-1/2 inches of water. The scrubber requires this minimum water level to be considered as a flame arrester.
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