Sweep shock comming apart, often

[pat Members Find all posts View Profile Close pat]

I have a lane that I installed a couple of years ago. What is happening is the sweep shock is twisting off the rod end and continually falling off. I have never seen this what could be causing this to happen all the time. What is putting torque in this sleeve?

I am going up there later to put lock tight on the rod end. I would like to put a jam nut does anyone have a size they use? I am just curious as to why this is happening. I feel like I left something out of line or something causing this. I have seen many of these loose but I have never seen one twist off. [img]/content/btubb/images/%%GRAEMLIN_URL%%/burningmad.gif[/img] Do you guys put a jam nut on the rod end?

Thanks in advance for your help.
Pat

[Clutch Plate Member Find all posts View Profile Close Clutch Plate]

Re: Sweep shock comming apart, often

What I do is tighten the tube weldment into the rod end until it is tight. Then I adjust sweep guard height by tightning or loosening threaded link(070-003-223).

[triac Members Find all posts View Profile Close triac]

Re: Sweep shock comming apart, often

At first I was trying to figure out how the shock mount could come loose. Then I realized you were referring to the telescopic rod.

I clamp the rod in the vise with 2 pieces of wood in-between the jaws and rod to protect it from damage of the vise jaws. Then I run the rod end as tight as possible before the rod spins in the vise. Never had one come loose doing it this way.

I wouldn’t recommend using a jam nut, as it will make your overall adjustments very difficult. I have a couple of machines that I had to use an extra washer to get the sweep high enough at the 5 spot because the crack pipe mount on the machine was bottomed out.

A mild lock-tite (blue thread locker) probably wouldn’t hurt either, but I don’t use it.

Triac

[Fudge Members Find all posts View Profile Close Fudge]

Re: Sweep shock comming apart, often

I have come across this a couple of times before I found replacing the rodend or the tube worked well for me.

[Loneliness Member Find all posts View Profile Close Loneliness]

Re: Sweep shock comming apart, often

Basically the answer is been Said, Tighten the Ends together, Then redo your Alignments...

In my experience they start coming undo when you have a bent Rod or Sleeve or your link thread isn’t adjusted correct, I would Check to Make sure both are Okay, clean them both grease the rod end and place some 3n1 oil on the rod for easier movement in and out of the Sleeve, add washer as need to get you 1/4" height at the 4, 5, 6 line

[pat Members Find all posts View Profile Close pat]

Re: Sweep shock comming apart, often

Got it taken care of. Thanks for the help. I tightened and the sweep is in better allignment. Thanks for the help guys.

Pat

[Rep Members Find all posts View Profile Close Rep]

Re: Sweep shock comming apart, often

Interesting, I've never had one come completely out. I have had them start to unscrew as said I just tighten em up and readjust sweep height, or on occasion I've had them loosen up messing up the height adjustment and tightening it all back up put it where it should be... Interesting thread to read none the less

[pat Members Find all posts View Profile Close pat]

Re: Sweep shock comming apart, often

Rep: I have never had this problem before either. In my old age when I see something new I try to look into it before I tear something apart. Part of the reason I like this site!

Old age or laziness??

[James Bandy Member Find all posts View Profile Close James Bandy]

Re: Sweep shock comming apart, often

I've seen this before. Simple to fix.

Back the rod end almost but not completely out of the tube, use a hammer and punch and ping a few threads. Then adjust it to where you need it. This will tighten them up in the threadway.

[Rep Members Find all posts View Profile Close Rep]

Re: Sweep shock comming apart, often

Originally posted by pat:
Rep: I have never had this problem before either. In my old age when I see something new I try to look into it before I tear something apart. Part of the reason I like this site!

Old age or laziness??

<font size="2" face="Verdana, Helvetica, sans-serif">It's interesting, I never saw it til about a year ago. Then all of a sudden I had about 3 of them loosen up within about a month. April will be 8 years for me in the business so the typical stuff I'm quite used to, but I enjoy the interesting out of the normal stuff keeps ya thinking, and believe me, without this site I'd probably still be scratching my head about quite a few things. The knowledge I've gained from this site is really undescribable, I don't think I'd be 1/2 of what I am without my BT [img]/content/btubb/images/%%GRAEMLIN_URL%%/laugh.gif[/img]

[Alastair Find all posts View Profile Close Alastair]

Re: Sweep shock comming apart, often

Interesting topic!

I've never seen this yet. Coming up on 6 years in the pits for me, but now saying that, it's bound to creep up next week. As per usual! I always find that. A topic on bowltech comes up, and very soon after, it happens in the centre!
It's uncanny.
I tell you, you just can't script it. Me and my brother have the same parents!!

[John Isbell Members Find all posts View Profile Close John Isbell]

Re: Sweep shock comming apart, often

Putting a jam nut on the telescoping rod / tube can be a benefit, in addition to keeping the tube tight and rod end connection tight it eliminates the need for washers on the rod to obtain a good 4-5-6 adj on some machines.

I usually just tighten the tube down on the rod end with vise grips, yea it scratches the tube body (bad bad mechanic), sometimes time is of the essence, I wish there were flats on the tube for a wrench.

Locktite is s good fix too but I have seen that loosen up as well.

Locknuts were used at the factory on some of the early 82-90's, had to do with the frame tube resizing

[Kingram Find all posts View Profile Close Kingram]

Re: Sweep shock comming apart, often

We had that trouble with the 90's we installed out of Korea and we just put a drop of red loctite on it. Solved our problems.

[Kingram Find all posts View Profile Close Kingram]

Re: Sweep shock comming apart, often

John,
Drill a 1/4" hole thru the tube so you can insert a small pin to tighten the tube.