I have to admit stumbling onto this crisis is somewhat bazaar being I just completed the same repair last week.
So with sparks and camera firing off of most of the steps, I proceeded to make a documented file for myself thinking this only happens to me.
Then the fun began.
These links that follow will show each image full size for details needed.
Large views
http://farm4.static.flickr.com/3266/3172803731_7cf28f5d70_o.jpg
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Good Luck with repair, and if you need any live tip, feel free to call me @ 763 639 2113 or SMS.
Having new help run the equipment, it was noticed that the broom motor must have had an issue with concrete building in the way.
The side frame the motor is mounted on was bent outward. This side of the machines frame is thinner material so that it can flex with the drums alignment.
This repair was a bit difficult getting the frame as straight
as possible before assembly.
Shims were added to true it dead on.
When the drive nut fits snug in it's new fitting in the drum, this is when it has to be true as possible.
*This is why grinding inside of socket is important, that it fits loose.
* Also, you don't want tool steel hardness running on the drive nut. This is the other reason to pre-heat with cutting torch the weld zone, and do not shock cool it off when done which will re-harden the surface.
* To lesson some of the wear at the drum fitting, try not to start & stop broom while it's in the air.
Let broom rest lightly on the ground first, check that it is in level contact, and then start the broom.
This also prevents the bristles from over flexing and wearing out.
I added notes tonight made in each image that should help when the going gets tough.
*Notice also where I mention 'preheat' prior to welding in the image related.
This broom is back on the job as of today, and everyone is happy, as well as myself when the only option left was all new parts not in stock.
It could easily have reached up to $3000, or spend another $5000 for new one, or a used one for $4200, and add new brooms to it.
But they didn't notice the bent side frame, so it was basically a pile of scrap.
So from the dealer's shop inspection, it was placed back onto the trailer and headed back to the monster garage.
Both stands were also damaged and had to be cut out and made from scratch with thicker pipe and pads.
I now use trailer hitch hair pin clips 3/16" drilled through stand legs to keep them from falling down and the curbing folding them under machine. It works great now.
The loop of the Hydraulic hoses also were anchored near the left stand leg with padded steel straps to keep them in tight to side frame.
This is where a combination of hyd 45 degree angle adaptors could streamline the hose angle at the motor.
Total parts so far were in the $200 range with some torture thrown in.
No band-aid was used in this repair.
*One major tip,
there is going to be a lot of grinding, so prepare with sound proof head set, goggles, mask, gloves and fans, or take it outside. But you knew that already.
Even if money was no object, I still wasn't going to spend a pile just because someone said I had to.
Next is the coupler holder when broom is removed.
Grungy fittings will be a thing of the past.
Happy New Year,
Regards,
Phil
Mpls
