Step Mount Repair

[429CV23]

Not sure which sub-forum this should go in; since it's a CC I'll post it here.


The step mount broke at the rear, outer edge, looks like someone had attempted to weld it previously. I was going to weld it up today, but because of it's location, prepping it is difficult. Hitting the accessible areas is easy with a 4 1/2" grinder, but the vertical side, not so much.



What would be a recommended tool/adapter to get that area? I did some light grinding with my Dremel-type cordless tool, using a cylindrical stone, maybe need a different type. Something similar to a mini flap wheel would be awesome. The previous weld material is really uneven, I'd like to get it ground nearly flat.


Thanks!!

[429CV23]

I forgot I have a 120* die grinder. I may use that; was hoping not to use an air-driven tool, but may have to.

[Jean n Steve]

If you're going to arc weld it, be sure and do your homework about disconnecting the electrical systems.

[429CV23]

I'll be shutting the house batteries off using the storage disconnect, have a disconnect switch for the chassis battery.
Not stick welding it, using MIG with C25 gas.

[suzygirl2017]

Allison transmissions advises disconnecting the transmission electronic control module when welding on the coach.

[429CV23]

I disconnected the ECU after shutting off the house batteries and disconnecting the chassis battery.
I won't have a chance to drive it until I reconnect the step wiring; too cold today (mid-30s) to be working under it, but will be nice enough tomorrow (close to 50).

[twinboat]

Can you reinforce it with a peice of angle iron welded where you can, and bolts thru the top ?

[429CV23]

Originally Posted by twinboat

Can you reinforce it with a peice of angle iron welded where you can, and bolts thru the top ?

I really wanted to add a small piece of angle along the edge, but the step butts up from edge to edge.


I have a step support from my former MH, but it is too short for this one, just ordered a longer one. That will certainly reduce the torque on the step mount. Doesn't seem like a great design. If I could access the outer edge of the mount I would have put in a few gussets, but it's right behind the fiberglass between the door and step.