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I have no laser light when I turn my level on

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Jay Henderson

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Check to make sure battery isn't bad first.. If upon changing the battery, it still doesn't work, the laser might be bad or worn out. Good luck... HDTV GURU JAY

Posted on Mar 16, 2011

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0helpful
1answer

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.
0helpful
1answer

Lazermark won't self level

There are 2 leveling systems in the lasermark lasers. The original was belt driven. The belts are rubber O rings, and break down over time. take the bottom off the laser and you can replace broken belts. It's a simply yet elegant system.
The newer ones use leveling cams. A tear drop shaped wheel on a motor, that raises and lowers one end of an axis to tilt the laser. The problem is because they have a hook at one end, they put a magnet in the cam to tell the laser when to stop turning the cam. If however, it reaches the limit, and then gets bumped it'll get the leveling axis stuck in the hook of the cam, and because the magnet is there, it will never relevel. What you have to do is, disassemble the laser, unplug the leveling motors and pull the wires for the magnet sensor out of the stuck axis. then swap the sensor from the other sensor in (as it wont level without reading the sensor) and then turn the unit on. It should be able to level at that point. The put all the wires back where they go, and you're on your way.
0helpful
1answer

The off level light doesn't turn off therefore doesn't level at all,

Your vial and compensator no longer match up. Move the foot screws until you can get your laser to spin, then adjust your leveling vial until it reads level again, using the 3 screws holding the vial inplace.
0helpful
1answer

Laser is level but out of level light blinks and will not spin

Your compensator and leveling vial are no longer aligned. Use your foot screws to find a place where the laser spins, then use the 3 hex head screws on the vial, to adjust it to read level.
0helpful
1answer

Topcon rl-60b

Hopefully it's the simple answer. The bubble vial may be out. start where the level vial says is level, and move outwards in slow circles to try and find a place the laser thinks is level. if you find a spot, use the 3 adjustment screws on the bottom of the bubble vial to make that your new center.
Otherwise, it's a not good news. A couple things could be gone wrong. The oil bath compensator could have leaked. If you open the laser, and it's oily inside, throw it away.
It could be the peep site could need adjusting, or the laser diode could be blown. If the laser diode is dead, same solution as the compensator leaking. There are no parts available for these anymore, chuck it out.
The peep site isn't a write off, per se. The laser operates by shooting the beam through a oil bath, which compensates for the instrument not being perfectly level, and then through a splitting lens. part of the beam travels up, and through the rotating head. And the rest goes through a peep site, to a light reflecting area of the main circuit board. if the board or peep site is no longer aligned, the laser will never think it's level. The bad news about that, it is a very tricky and time consuming repair, that few technicians know how to do, or if they do know how are most aren't comfortable doing it.
You can try taking the cover off, leveling the instrument, powering it up and trying to move the circuit board until the laser thinks it's level, but i wouldn't waste much time on it.
1helpful
1answer

Why is the Green light not blinking?

Do a peg test, if the unit is leveling and accurate, then it's just the green diode has malfunctioned, dont worry about it, it happens.
If the peg test fails, then either the keypad board has failed, or a motor may be jammed. Or possibly the laydown switch has is stuck, and the laser things it's perminatly in vertical mode, and wont level. Take it to a laser/survey shop as the front label will have to be replaced just to open it, to diagnose.
0helpful
1answer

Red light will not stop flashing only just started, less than a year old

When the tool is level, the lasers will stop flashing, but check out the batteries too, because if they're weak, the tool will not level, and the lights will continue to flash .
0helpful
1answer

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.
1helpful
1answer

Green light turns on momentarily, then nothing from unit

make sure batteries are tight in unit ,making good connection there are many internal things that could be wrong no rotation could be bad drive motor broken belt bad pcb robotoolz now owned by bosch who owns cst-berger discontinued robotoolz lasers there is a guy who will give free estimate on repair A.P. Service & supplies 610-944 8030
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