Unit comes to shop with reach carriage hitting HARD at extend and retract positions, no slowing down or softly ending travel.
Quickly discovered the screw that holds the reach travel sensor and its little tin house had fallen out and the sensor was flopping around, just along for the ride.
The sensor (I think) reads off like 1 inch square holes in a sensor bar that runs along under the reach cylinder.
Also I notice a "L" shaped bracket that's riveted to the sensor bar at the rear is bent all to ****. It (I think) it is supposed to trigger/match a corresponding square hole in the sensor house and in turn the sensor.
I put it all back together and carriage is still crashing at extend and retract.
I replace the sensor straighten up the "L" shaped bracket and try it again. The carriage now behaves correctly, slowing nicely at both travel extremes, but it keeps running over and destroying the "L" shaped bracket every time I retract the carriage.
It won't stop at the "L" shaped bracket - it keeps retracting and bends the bracket??
Does the reach travel need calibration when you change the sensor??
The stupid thing is it seems to work quite well with the sensor all bent up, so I returned it to service.
Just not happy not understanding this system.
Anybody run into this??
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Had some trouble with the new "look" on the forum.
Couldn't get to this page for a few days - but all good now I guess.
Anyway, software we have is 009 - I have ordered a complete new measuring bar assembly and will install it upon arrival. I'm not sure if dealer has 011 software but will try and get him involved when I install the new bar assembly so I don't destroy it. I will also investigate the reach cylinder integrity to make sure it's not falling apart internally.
Is there anything else that I need to know before installing the measuring bar??
I will double check the software, I "think" it is Version 11 but will make certain.
I never even thought about the cylinder maybe going haywire.
The little bracket that gets bent over, has a long finger that slides along the sensor housing, as it retracts, and there is a square cut-out in the side of housing. You can see the side of the sensor through the cut-out and it's got like a rifle scope crosshairs printed on the sensor. I'm assuming the long finger triggers something when it passes by the crosshair opening?
Just curious more than anything as to how it works.
Thanks for the help, I'll check the software.
What software version is the truck running?
IIRC Going up to version - 009 required the reach movement recalibrating as the valves operating current has been tweaked.
The newer software versions allow much more fine control of the reach carriage braking at either end of the travel especially at height but it will require a recalibration.
Version - 011 is the current latest for the RRE H series
I remember on an older RRE the piston in the reach ram the nyloc securing nut started to come undone which allowed the piston head & seals to move on the end of the piston rod cause the ram to over reach.
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