RACE 1655859 - Caterpillar

Electric Mast
The AccuGrade - Grade Control System uses one or two Electric Masts. The Electric Mast is a telescopic receiver mount that is driven by an electric motor. The mast vertically raises and lowers the laser receivers to locate the laser beam.
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Electric MastRefer to Table 6 for the features and functions of the electric mast:
Table 6
Features and Functions of the Electric Mast    
Callout    Feature    Function    
26     Inner mast tube     Raises and lowers the laser receiver to locate the laser beam and to change an existing elevation setting    
27     6-socket receiver cable connector     Connects the coiled cable from the laser receiver to the electric mast    
28     10-pin control cable connector     Connects the electric mast to the main harness    
29     Block Adapter     The receiver clamp attaches the Laser Receiver to the block adapter.    
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Electric Mast with Block Adapter (26) Inner Mast Tube (29) Block AdapterMainfall Sensor
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The Mainfall Sensor (41) measures the slope of the machine in relation to the front of the machine. Blade Slope Sensor
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The Blade Slope Sensor is mounted to the rear of the circle and measures the actual slope of the blade.Rotation Sensor
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The Rotation Sensor measures the angle of the blade relative to the frame of the machine. When the blade is perpendicular to the frame, zero degree rotation is achieved. This angle measurement is calculated to ensure proper slope across the blade even when the blade is rotated.Implement/Valve Control ECM
The Implement/Valve Control ECM provides valve control for the Blade Lift/Tilt valve.The Implement/Valve Control ECM reads the switches and provides switch status information to the Display and also provides the machine interlock status in order to ensure that the "AccuGrade - Grade Control System" is disabled when the machine is in park or stationary without an operator.The Implement/Valve Control ECM stores the calibration values and the machine information for the Display in order to allow the Display to be moved from one machine to another.
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Power Supply Module
The Power Supply Module supplies power to the Display, the Electric Masts, the Laser Receivers and the Implement/Valve Control ECM. The Power Supply Module includes power conditioning and control circuits, as well as overcurrent and load dump protection.
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Table 7 shows the features and the functions of the Power Supply Module.
Table 7
Features and Functions of the Power Supply Module    
Callout     Feature     Function    
42     8-pin main harness Connector     Connects the Power Supply Module to the main harness    
43     8-socket power input connector     Connects the Power Supply Module to the machine power    Hydraulic Valves
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The AccuGrade – Grade Control System uses 2 hydraulic valves to automatically control the blade.