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ck to see that piviot bearing does not have and dust or junk in it and moves very easy , i use mine for drywall and i have to clean out piviot all the time to get proper level from it
To check calibration set the tool on a fixed surface. turn it on. let it autolevel, then mark the wall with a pencil at a distance of 15- 20 feet. rotate the laser on its axis 90 degrees, and see if it self levels to the same line. if it does not, send it to hilti, you'll have it back in a week.
Had the same problem. Actually had vertical beam and one horizontal beam not working. I put the laser in the freezer for about 30 minutes, took it out and all the beams work. Prior to that I cleaned all the battery contacts and of course installed fresh batteries all to no avail. I have no idea freezing it worked but it did. Of course freezing it would cause condensation to form on the inside of the instrument but why that would make the laser work is not known. I hope it works for you. Jim from Fredonia.
I would check the batterys first and if they are good, generally there is no way for an end user to fix a laser. I have talked to DeWalt in the past about this and been advised not to open it up. you can try to reset the laser and see if it reboots, sometimes they are so far out they won't turn the laser on.
to calibrate you need to have an area 75 to 100 feet in distance. place laser on tripod 20 feet from one end, take measurements on short and long end, then move laser to center of range and take measurements on both ends . the distance between both sets of marks should be within + or - 1/4 inch if not move level screw to move beam to center then center bubble
check to see if head spins by hand head gears may be jammed is it fully leveling it will not spin unless completely leveled could be loose connection from fall A.P. Service & Supplies 610-944-8030 repairs lasers free estimate
OK if the model number is PD30 go to Hilti.com and type in your model and it will direct you downloads on the right hand side of page go there and under user/owners manual you can download a copy or read it online for this tool. If you need any further help let me know. Also if you are located in the US you can call their toll free number and get tech at 1-800-879-8000. I deal with them all the time and they are extremely helpful.
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