WW1.0 Boom Sagging

[DJGall]

Hey Folks,

Been a few years since I have been on here. I always lurk, but haven't participated in a while. Life got too busy for a while.

Anyways, I have a WW1.0 and during the wash/rinse processes....I can intermittently (not always) watch the top boom drop down about 1-3 inches below flush with the gantry. This is only happening about 20% of the time, as usually, the boom stays retracted into the gantry.

However, it will sometimes "dip" down and the high-pressure wash/rinsing will pause for a split second; simultaneously the boom will raise back up and the high-pressure will resume instantly. And, on occasion, it is my theory that this issue is also causing the "wash cycle" to lose track and prematurely tell customers that the wash is finished; so, go ahead and exit (with soap and wax still on their car).

I've talked to a few other JCC owners, and they tell me "your top boom gearbox" is worn out and needs replaced. They say the worn out gear box is allowing the boom to drop/sag.

Thoughts?? I'm open to suggestions.

Thanks, Dirty Dawg Carwash in Owasso, OK

 

[DJGall]

Ideas anyone?? I'm struggling.

 

[Buzzie8]

The pausing of the high pressure is a prox switch issue. Your boom sagging could be something as simple as the little black rubber stoppers that tend to fall off on these machines. Of course the gear box could be an issue as well. You might want to check all the proxs switches on the boom arm.

 

[DJGall]

I replaced the 50:1 gearbox used for the top boom. It was 11 years old.....the input shaft could be turned about 35 to 40 degrees (less than a 1/4 turn) before the output shafts would begin turning. Not a lot of slop, but, the auto seems to be running without problems for now. No more "boom sagging".

The weather here in Owasso today was close to 75F this afternoon. Beautiful day!! I spent the whole day working on my auto, winterizing, lubricating, insulating, etc, etc.

Very prosperous day! DD

 

[toddmullens]

I replaced the 50:1 gearbox used for the top boom. It was 11 years old.....the input shaft could be turned about 35 to 40 degrees (less than a 1/4 turn) before the output shafts would begin turning. Not a lot of slop, but, the auto seems to be running without problems for now. No more "boom sagging".

The weather here in Owasso today was close to 75F this afternoon. Beautiful day!! I spent the whole day working on my auto, winterizing, lubricating, insulating, etc, etc.

Very prosperous day! DD

If you still have the old style vfd's installed, you can change the setting for parameter n53 to 10.0 and it will help. Little late now but might come in handy in the future. Regardless, its a sign of a gear box getting weak. Also you must make sure the 4 rubber stops are in place.