VALVE & LINKAGE GP 3422640 - Caterpillar

Laser Grading
Setup and operation is easy with the AccuGrade Laser system. An off-board tripod mounted laser transmitter emits a thin beam of light that rotates 360°, creating a grade reference over the work area. Grade information is transferred to the machine via the laser beam.A digital laser receiver, mounted on an electronic telescopic mast above the machine's cutting edge, detects the laser beam's elevation and sends the information to the Display.The AccuGrade Laser system is available with a single mast or a dual mast. The single mast and the dual mast both provide single dimensional (elevation) control. For example, a flat plane or single sloped plane. The dual mast system provide two-dimensional control. For example, a sloped plane with cross slope (elevation and tilt).
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The Display informs the operator of the blade's position relative to grade and indicates cut or fill requirements of the work area.An automated blade control feature allows the operator to automatically control the lift function (single mast) or both the lift and tilt (dual mast) functions by placing the cutting edge to the precise elevation needed for fine grading.The AccuGrade Laser system provides valve drive signals for automatic blade control. The valve automatically raises or lowers the cutting edge based on the correction signals to maintain elevation for precise grade control and optimum productivity.Unique control functions allow the system to be user configured to suit operator preference and specific job site requirements.System Overview
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The AccuGrade Laser system consists of the following onboard devices:
Display
Laser receivers (1 for a single mast system or 2 for a dual mast system)
Implement/Valve Control ECM (A4:M1)
Power Supply Module
Electronic Masts (1 for a single mast system or 2 for a dual mast system)
Cable Harness
Hydraulic Control Valves
Joystick Control (Auto/Manual/Offset Switch)Note: A laser transmitter that is designed for machine guidance is required in order to operate the AccuGrade Laser system. The laser transmitter is not included with the AccuGrade Laser system. Caterpillar recommends the use of a laser transmitter with the following features: Automatic Self-Leveling Mode, 600 rpm min rotational speed and Automatic Out of Level Shutoff. Read the operator manual and follow the operator manual that is supplied with the laser transmitter.The off-board tripod-mounted laser transmitter emits a thin beam of light that rotates 360°, creating a grade reference over the work area. Grade information is transferred to the machine via the laser beam.
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Display (1) Arrow Keys (2) Liquid Crystal Display (3) Elevation Select Key (4) Increment/Blade Slope Direction Key (5) Manual Key (6) Menu Key (7) "Esc" Left Reset/Left Bench Key (8) "OK" Right Reset/Right Bench Key (9) Grade Indicators