Restored Shear

[DanH]

Originally Posted by TShort

Very cool.

I would be interested in some of the how you did it details…

Start by separating every part from every part. The big chunks went back on the trailer and were hauled to a sandblasting shop. Smaller stuff got a pass through my bead blast cabinet after protecting all sensitive surfaces, like bushings and shafts.

Next is repairing or replacing all broken or worn out parts. After ~80 years of airport apes, there will be some. Can't buy most of it, so it's all fabricated. The adjustment end plate in the brake photos is a good example. The pivot point had a large, badly worn slot. So, cut out that portion, weld in a new section, bore the correct hole.

Primer and paint is Richards single part industrial polyurethane. Brush on all the primer to really saturate the sandblasted surface. Sprayed most of the color.

If there's a catch, it's the weight of the parts. I used a Kubota with a front end loader to lift and position as needed.

[spark68]

Originally Posted by Nick Leonard

I have a four foot shear that needs to have the blade sharpened. Any ideas on how or who does this sort of thing?

Shear blades usually have 4 sharp edges. Flip the blade to expose an unused edge, if not already used. Need to re-set the blade to blade clearance by shimming. Too little clearance will wear the blade edge quickly and increase the force required. 10% of the thickness of material to be sheared is about right.

[rv8ch]

Originally Posted by DanH

Before and after. Whole lot of heavy lifting between those photos...
.

Beautiful work Dan. We took delivery of a very similar brake - brand new - in I believe '75 or '76 and it didn't look as nice as this. My brother and I spent many hours using that thing, "racing" another team on a similar one. We were paid the princely sum of $2/hour each. It was heaven!

[DanH]

Third and final of the trio, a 42" Pexto slip roll.

Love that ancient extra chunky grease
.

[rv6ejguy]

Nice looking restoration Dan. Cool!