how to remove belt on Cowboy 4500

[Tent99]

The simplest of tasks, I'm sure, but I didn't install the belt that drives the handwheel on my new, never sewn a stitch with,  Cowboy 4500 so don't know how to remove it.  I need to take the handwheel off to make sure the screws are aligned with the V-groove.  But, I can't take it off without removing the belt.  There has to be an easier way to take the belt off and put it back on than it seems?  I have read the directions and searched the archives (maybe I'm not doing that right, I just joined), and can't find anything.  Just need to take it off, check the wheel, and put it right back on. 

 

Thank you

[dirtclod]

I would think whoever set it up of checked that. To get the belt off loosen the speed reducer and maybe the motor. You will be able to raise them a little and get the belt off.

[Uwe]

Servo motor mounts usually have a pivot point and some way to adjust how taught/loose the belt is. You can loosen the belt via the motor mount and then you can remove the belt. If you have a speed reducer pulley, that may need to be loosened as well.

 

[Tent99]

33 minutes ago, Uwe said:

Servo motor mounts usually have a pivot point and some way to adjust how taught/loose the belt is. You can loosen the belt via the motor mount and then you can remove the belt. If you have a speed reducer pulley, that may need to be loosened as well.

 

looked for a way, but nothing looks adjustable from the motor mount, really...but probably just total lack of knowing what to look for/try

Edited September 7, 2016 by Tent99

[OLDNSLOW]

well it is a very tight fit when it goes on, oops its a cabooie, well no matter it is the same as a cobra and many others in the same style and class.  If you go to cobras page they might have it up on their web page and it would be the same process.

[Uwe]

A few things:

You gotta tell us what you have. Pictures always help. My crystal ball showing me your motor installation is all foggy today.

If you can't figure out the belt tension mechanism on your setup by looking at it, perhaps it's not such a great idea to start taking things apart. 

Whoever sold this thing to you probably has a phone and an interest in keeping you happy. If you don't trust that person to assemble things properly, perhaps not such a good source for purchases.

I'd advise against taking things apart just to check whether they were properly installed in the first place. Quite often you introduce new problems unless you really know what you're doing.

I'm not sure why you feel this is an important first thing to do before commissioning the machine. There are perhaps a dozen of grooved rods and bars with set screws. Do you plan to check all of them?

 

[JLSleather]

On my piece of cobra, I can put the belt on or off without loosening something else.  Much like the old bridgeport mills l..

 

[brmax]

What can I ask is your reason to check this. And to be a bit easier take look at the end of the shaft for the vee, then with a corresponding bolt in alignment and with the next further step you could remove that particular bolt / set screw to verify its in a position to secure the pulley / handwheel. if this check is done a re install torque may be good to know for the screw / bolt.

Floyd

 

edit

that's funny JLS "piece"

Tent99: Oh ya anyway I found from last week disassembling n loading a purdy class4 and re assembly that just the power pulley could have been loosened for adjustment. But I wanted to see if I could fill the folgers bucket full of parts, just to hear them jingle 200 miles.  Yours may have one of the new reducer box types Bob has in the shop now, I wish he'd send me one just because he is cool ; )

Edited September 7, 2016 by brmax
Cool

[Wizcrafts]

You can remove the belt from the flywheel by loosening the upper bolt on the outside right side of the square mounting bracket that the reducer wheel mounts to. This is under the table. After loosening the upper bolt, lift the entire reducer assembly all the way up, then tighten the bolt to hold it in the raised position. The v-belt should be loose enough to flip off the pulley on the flywheel. When you are ready to reassemble it, pull the belt onto the wheel, turning it towards you if necessary. With the belt inside the pulley, loosen the bolt and push down hard on the reducer wheels to tension the belt, then tighten down the securing bolt.

You may need to loosen the adjuster nuts on the long threaded bolt on the front of the motor, allowing it to move up with the reducer assembly. Start by loosening the top nut. I think it needs an 18mm wrench.

[CowboyBob]

The belt tension is pre-set,so it's best not to loosenthe reducer or motor.Just take your hand & start pulling the belt off on the back & turn the handwheel towards you & it'll slide off,you can also roll it back on the way by starting it on as far as it will go & trun the wheel towards you.