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Summary of Contents for David White L6-20
- Page 1 L6-20 LT6-900 FOR CUSTOMER SERVICE, PARTS AND REPAIR CALL (765) 581-4097 www.davidwhite.com IMPORTANT: IMPORTANT : IMPORTANTE: Read Before Using Lire avant usage Leer antes de usar...
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Page 2: Precision And Accuracy
David White is not responsible for errors caused by instruments that are out of adjustment. Contact your distributor, dealer or David White for information on the nearest facility to check if your instrument is properly adjusted. -
Page 4: General Safety Rules
GENERAL SAFETy RULES Read all instructions. Failure to follow all instructions listed below WARNING may result in serious injury. When moving a tripod-mounted instrument, handle with care. Carry WARNING only in an upright position. Do not carry over your shoulder or in a horizontal position. -
Page 5: Technical Data
15. 5/8-11 threaded base 5. Horizontal graduated circle 16. Horizontal vernier 6. Horizontal vernier 17. Bubble Level Adjustment Screw 7. Horizontal clamp TECHNICAL DATA L6-20 LT6-900 Accuracy 1/4 in at 100 ft 1/4 in at 100 ft (6mm at 30m) (6mm at 30m) -
Page 6: General Description
David White Meridian pointer 11. instruments use the smooth precision of a The vertical clamp 12 holds the telescope rack and pinion mechanism for focusing. -
Page 7: Operation
OPERATION Initial Operation Move the tripod and instrument over the approximate point. (Be sure the tripod Protect the instrument WARNING is set up firmly again. Loosen leveling against moisture and screws and shift the instrument laterally direct sun light. until the instrument is positioned directly Do not subject the instrument to extreme over the point. - Page 8 Turn both screws at the same time by With the bubble level adjustment screw 17 moving your thumbs toward each other facing to the right of the bubble and with or away from each other, until the bubble telescope directly in line with two of the is centered.
- Page 9 Sighting and Focusing the Exact Degree Reading Telescope The point at which 0 on the vernier scale touches the circle. If the 0 coincides Avoid touching the tripod while sighting. exactly with a degree line on the circle, - Aim the telescope 1 at the object and your reading will be in exact degrees.
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Page 10: General Applications
Running Straight Lines Horizontal Level Applications with a Level (L6-20 and LT6-900) Set up the instrument over Point A. A The following jobs can be accurately plumb bob should be held over Point B. - Page 11 105° 105° This establishes your angle. 45° 45° NOTE: The L6-20 and LT6-900 have horizontal verniers which read to 15-min (1/4 degree). For projects which need The following example simply explains more accurate angle measurement for how to measure angles: layout, we recommend using a more precise instrument with a 5-min vernier.
- Page 12 Laying Out a Swimming Pool Vertical Applications (LT6-900 Only) 5’ The following example illustrates how to (1.5 m) use a level-transit for laying out roads, building lines, ditches, orchards, fences, hedges, fields, etc. Running straight lines with a level-transit (Although it is possible to run straight lines with a level, it is faster and more accurate In the above figure, A-B is the lot line.
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Page 13: Checking Calibration
If you have questions about checking shoe points. These marks can be for calibration, contact David White or a used for future reference. repair facility. All actual adjusting of the 4. After the instrument has been... -
Page 14: Maintenance And Service
MAINTENANCE AND SERVICE Store and transport the tool only in the model number and serial number of the supplied protective case. instruments. keep the tool clean at all times. All precision instruments should be cleaned, lubricated, checked and adjusted Do not immerse the tool into water or ONLy at a qualified instrument repair other fluids. -
Page 15: Limited Warranty
THIS LIMITED WARRANTY APPLIES ONLY TO PRODUCTS SOLD WITHIN THE UNITED STATES OF AMERICA, CANADA AND THE COMMONWEALTH OF PUERTO RICO. FOR WARRANTY COVERAGE WITHIN OTHER COUNTRIES, CONTACT YOUR LOCAL SITEPRO DEALER OR IMPORTER. David White is a registered trademark and offered exclusively by SitePro. -15-... - Page 16 © Dave White’s SitePro 7619 S 1150 E Otterbein, IN 47970 Tel. +1 (765) 581 4097 42344D8834 09/15 Printed in China...
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Questions and answers
The sight crosshair fell off, can it be repaired
Yes, the sight crosshair on a David White L6-20 can be repaired, but repairs should be carried out by an authorized service center or the manufacturer.
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