Part 9: Propane Mounting Frame Completion

20101115-21

Navigation Links
 Trip Home Page     

 


The Experience

While we had completed construction of part of the propane bottle tray, the mounting frame still needed to be fabricated.  After seeing the horrible mess that a cutoff saw made in my driveway (dust, debris and noise) I elected to purchase a band saw.  After reviewing what was available in a reasonable time, I elected to visit Harbor Freight in a nearby city.  I was not impressed with the quality of their offering, but the price was right and I was reasonably sure that their saw would do most of what I needed.  Plus, it was available now as opposed to a 2 week delivery cycle with shipping fees.  So, I bought the saw, loaded it into my car and returned home to start work on the mounting frame.

The Photos

The photos below are what we saw.

The saw required some assembly and as it turns out, some mechanical re-work as well.  This "made-in-China" saw had some mechanical interference issues that I resolved with a die grinder and a file.  Once the interferences were addressed, I did a test cut to see if the saw would do what was required.  The answer was "yes", if you were careful.

We mounted the saw on some steel saw horses and got to work cutting some 2x2x1/4" square tubing to be used in the propane mounting rack.  The saw cut the thick wall tubing without any issues, albeit at a slow rate.

The main support members were cut from the tubing and were then welded to the descender support tubes.  Above, the members are test fit on the 1017 frame.

On my last visit to the steel store, I purchased a 3D corner jig that should greatly assist in making the corners square.  Above, components of the descender assembly are put in the corner jig prior to tack-welding.

Once the descenders were verified to fit as expected, they were "sewn-up" and hard-welded together.  I have been using my trailer as my work bench as there is no space in my garage.  The trailer is a reasonable substitute for a regular shop unless the weather turns against you, which it did.

The descender assembly was welded to the bottom tray and support straps were added.  Above, a support strap is cut after welding.

The cut area is ground smooth prior to welding the exposed edge.

The finished rack ready to be painted.

With propane bottles and the top, the mounting geometry becomes clearer.  The asymmetry is due to required clearance from existing components on the 1017.

The top frame members were reinforced with 1/4" gussets and mounting tabs were added.  When the welding was completed, Kathleen took them to the "paint shop" in  the back yard.

The front trailer hitch needed to be beefed-up, so a 4"x4" plate was added to spread the load over the front face of the bumper.

After the mounting frame members were painted and installed, heat shields were added to the outside of the frame using polished diamond plate.

The reason for the asymmetry in the descender frame becomes apparent in the photo above.  We had to design around the mounting hanger for the exhaust to make use of the available space.

Once the paint on the front hitch was dry it was re-installed on the front bumper.

A mounting plate for the propane regulator was fabricated, painted and installed.

Details of the regulator mounting can be seen in the photo above.

Mounting frames for our leveling blocks were fabricated and painted.

Amazingly, online I found an adapter that maps a 24-pin NATO trailer hitch to a 7-blade RV connector.  At NAPA, I found an adapter that maps 7-blade RV to both 6-pin and 4-pin trailer connectors.  I will, however, have to change the lighting on the trailer to LEDs that can tolerate the 24 volts that the 1017 uses.

The leveling block frames were welded to the trailer and an appropriate shock-cord restraint was made.

The front frame was welded next to the mounting rack for the stairs.

This was a ton of work.  We faced a number of challenges including rain on our outdoor workshop.  The saw made things easier, but in retrospect, I should have anticipated the need for a saw and gotten a higher-quality saw.  This saw works, but has some annoying issues.  Next up: internal plumbing in the living quarters and electrical retrofit.


Navigation Links
Previous Adventure
Top of this Page
  Next Adventure
Trip Home Page  
Bill Caid's Home Page

Photos and Text Copyright Bill Caid 2010, all rights reserved.
For your enjoyment only, not for commercial use.