Question about David White 483110GR Autolaser with Detector

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I have a 48-3110-GR david white laser level it wont spin the laser moves up and down and flashes for a couple minutes then stops the anti-drift light stays on and the level on/off starts to flash if you turn it too self level the manual grade settings wont move it but then it will spin

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1 Answer

What is the slope buttons used for


If you have the standard RL-H3C then there are 3 buttons. Starting from the left there is the "height alert" then "manual" then "Power".

Height alert is a function that after the laser levels and spins monitors the position of the laser. If the laser moves more then a tiny amount then the height alert function is tripped, and the laser flashes it's lights and stops spinning (or spins slowly) to let you know the base line position of the laser has changed. Pressing the height alert button twice shuts this mode off.
Manual mode means after the laser is leveled, it completely ignores the level vials. You can turn the laser any way you want to and it will always spin and not cause any errors.
Power is self explanatory.
If it's a RL-H3CS then it has two arrow buttons, that when in manual mode, allot one axis of the laser to be manually adjusted up and down to do a manual slope.

Sep 22, 2014 | Topcon Rlh3c Rotating Laser Level W...

3 Answers

Topcon rl-hb wont level


I have one of this model too and have the same problem. It spin and spin but won't level. After a couple of minutes it stops and the power led fast blink.

Sep 23, 2012 | Topcon Rl-hb Rotating Laser Level W/ls-70b

2 Answers

I can't get my david white matrix 54 to shoot a beam in any direction. The lights on top just flasah.


This sounds like it is out of level. Self leveling lasers are only self leveling to a point. If they go past that they can not compensate and generally flash to let you know.

Jun 14, 2011 | David White 48 MATRX54 Matrix54 Multi...

1 Answer

Will not level


Most likely what's happening is the laser spins and it will level to the front corner, then the far back corner, then back to the middleish, and rotates at a slow speed, and error lights flash, right?
Couple things can cause this. First, the compensator uses an oil bath to decide it's level position. It shines the laser through the oil, and a detector sees the reflection and moves up or down to adjust the reflected beam to the center. If either the oil has leaked, or the laser diode has failed, the sensor will not see the beam to level. If you open it up, and it's oily inside, the compensator has definitely leaked. Laser and oil bath compensator are 1 part, not available anymore. Chuck it out.
If not oily inside, there's a small circuit board on the side of the compensator that is plugged in to the circuit board below. This is the leveling sensor. I've been told by another technician that unplugging this connector, and plugging it back in after 30 seconds or so can bring them back to life. I've never had it work, but I always try.
Last thing it could be is the encooder/encooder wheel. on the back of the compensator there is a small sensor that is right below the rotating head. There is a picket fence sticker on the underside of the head. if the sticker is worn, bubbled or damaged, it may not be picked up by the encooder. or the encooder may be faulty. The head gear/encooder wheel assy is still available as it's used in other units. you may still be able to get the encooder too, they changed them part way though production, depends on the version you have.

Jul 02, 2010 | Topcon Rlh3c Rotating Laser Level W...

2 Answers

The Belt of my craftsman 3x21 sander slowly moves off track.


There is a leveling (screw/knob) on the side of the belt sander. Turn it up and the belt will drift in one direction. Turn it downward and the belt will drift in the opposite direction. play with this leveling screw/knob until you reach a good balance and the belt will stop drifting.

Dec 04, 2009 | Craftsman 3 x 21" Variable Speed Belt...

1 Answer

My Slim PS2 discs won't spin. I just replaced the laser...


put some wieght on the ps2 disk cover flap eg a game cover that fixed mine otherwise i would trash it man ;)

Jul 26, 2009 | Sony PlayStation 2 Slimline Console

1 Answer

Paper led light wont stop flashing


Pull the tray out and make sure the back guide is pushed against the paper. The back guide tends to move easily on these models

Jul 15, 2009 | Brother HL-2040 Laser Printer

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