Futura fails and photo eyes

[Bricks]

Hey everyone
I noticed two fails today. After reviewing the video, the arch is traveling past the rear of the vehicle and hitting the physical stop. The alarm said “treadle photo eye”.

There are only the two that tells it to stop and backup. And there’s one on the wheel that detects travel distance (I think). And the mass sensor that’s on the floor.
I hate to just start replacing the emitters and receivers on the arch (parts guessing).
Does it make sense that it would be the “STOP” sensors as they would be the first ones to remake contact after traveling past the rear of the car? Or do you think it would be the “BACKUP” ones ? Thank you

 

[Bricks]

Update. I had changed presoak nozzles and they have wider bases. When the tilt cylinder turned, the side panel flexed just enough from the bigger nozzle bases to shadow the eye, making the machine think it was looking at a vehicle.

 

[bigjws]

Sorry Bricks, just saw this… if it happens again, maybe this’ll help. Usually if it’s going to the back of the tracks the problem is one of a couple things: most of the time it’s the sensor that counts the distance the wheels traveled… There’s a minimum that the gantry goes back for every car, and if the sensor is not counting correctly it’ll go all the way to the back of the tracks. Sometimes the stop or backup sensors/connections can start getting bad, causing intermittent and weird failures… But usually if those sensors aren’t working the wash wouldn’t work in the first place.

 

[Bricks]

Sorry Bricks, just saw this… if it happens again, maybe this’ll help. Usually if it’s going to the back of the tracks the problem is one of a couple things: most of the time it’s the sensor that counts the distance the wheels traveled… There’s a minimum that the gantry goes back for every car, and if the sensor is not counting correctly it’ll go all the way to the back of the tracks. Sometimes the stop or backup sensors/connections can start getting bad, causing intermittent and weird failures… But usually if those sensors aren’t working the wash wouldn’t work in the first place.

Thanks man. Much appreciated!

 

[MEP001]

Now I know I've been doing this too long. I had a dream last night that I was working on a Futura unit which kept crawling up the rail on one side and binding. I've never even seen that happen, so my brain is creating scenarios.

 

[Bricks]

Now I know I've been doing this too long. I had a dream last night that I was working on a Futura unit which kept crawling up the rail on one side and binding. I've never even seen that happen, so my brain is creating scenarios.

That’s funny!! Yesterday I drove to Tri Valley because the production pump on the RO started leaking everywhere. The parts guy was telling me to change both drive wheels, not just one, or it’d crawl sideways.

 

[MEP001]

That makes things even weirder.