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DG711 and DG511 Pipe Laser User Guide iii
7Refraction
Model 929 Blower Operating Instructions . . . . . . . . 69
8 DG511/711 Troubleshooting
9 Calibration
Checking the Calibration. . . . . . . . . . . . . . . . . 75
Adjusting the Calibration . . . . . . . . . . . . . . . . 77
Grade Check . . . . . . . . . . . . . . . . . . . . . . . 78
Example. . . . . . . . . . . . . . . . . . . . . . 79
10 Maintenance and Care
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Battery Disposal . . . . . . . . . . . . . . . . . . . . . 82
System Cleaning . . . . . . . . . . . . . . . . . . . . . 82
11 Laser Specifications
Request for Service and Parts . . . . . . . . . . . . . . 86