Appendix A–12
✓
With the source rod in the
SAFE
(shielded) position, place the
gauge on its side.
✓
Clean the heads of the four corner screws that hold the bottom
plate to the gauge base (Figure A–3). Using a 1/8-in. Allen
wrench, remove the four screws in the corner of the plate and
remove the plate.
Do not remove
the two screws located in the
center of the plate that secure the fixed block to the plate.
✓
To reduce radiological exposure, stand to one side of the gauge.
Paying close attention to the position of the sliding block,
remove the block.
✓
Using a stiff brush or rag soaked in alcohol, clean the sliding
block, the fixed block mounted on the bottom plate, and the
cavity.
✓
Re-install the sliding block with the angled side up. Apply a
light coating of Magnalube-G paste to the
top angled
surface of
the sliding block and to the top surface of the fixed block.
✓
Re-install the bottom plate.
Do not over-tighten screws!
Ensure that the source rod moves up and down freely.
Figure A–3. Cleaning the Sliding and Fixed Blocks
Summary of Contents for RoadReader Plus 3450
Page 7: ...Model 3450 vii NOTES...
Page 13: ...xii NOTES...
Page 17: ...1 4 GAUGE PARTS AND ACCESSORIES Figure 1 1 Model 3450 Parts and Accessories...
Page 23: ...2 4 Figure 2 1 Effect of Moisture on Depth of Measurement...
Page 53: ...3 28 NOTES...
Page 169: ...Appendix E 2 STANDARD COUNT LOG Gauge Serial Number Date Moisture MS Density DS1 Density DS2...
Page 171: ...Appendix E 4 STANDARD COUNT LOG Gauge Serial Number Date Moisture MS Density DS1 Density DS2...
Page 173: ...Appendix E 6 STANDARD COUNT LOG Gauge Serial Number Date Moisture MS Density DS1 Density DS2...
Page 175: ...Appendix E 8 STANDARD COUNT LOG Gauge Serial Number Date Moisture MS Density DS1 Density DS2...
Page 181: ...Appendix G 4 NOTES...
Page 187: ...Appendix H 6 NOTES...
Page 199: ...Index 12 NOTES...
