Excavator Bucket Repair

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The wear plates on this bucket were obviously worn.  The way the wear bars were installed from the factory was not the best way.  When the bars are installed parallel with the flow of the material they do not protect bucket well.

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We removed the damaged wear bars and installed new wear bars perpendicular to the flow of material.  The reason this configuration is better is the dirt (in this case) will get caught between the the bars and protect the bucket bottom.  The material then is wearing against the hardened wear bars and dirt.

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Structural Steel Erecting in Sacramento

Some of you may guess the small building we are working on.  I’ll give you a hint – you can see the color of the joist used for this auto parts store.

Dan and Karl shook the deck out and tacked down in one day.

We came back about 1-1/2 months after we finished the deck to install these two awnings.

 

Welding on a Lattice Cell Tower

The rusted looking areas are the locations we need to weld

This is the base of one of the legs of a three legged tower we worked on in May, 2012.  This tower is in Fortuna, CA just south of Eureka.  The weather was very nice for working when I was there, overcast and cool.  However, when Dan was there they couldn’t work one of the days due to rain and wind.  All the welding was done using flux core wire, E70T-8.

 

Cell Tower Modification in Modesto

On this cell tower we added 12 gussets to the base plate of the tower and reinforced the port holes.

This was the easy side to get to

The gussets are about 6″ wide at the base and approximately 14″ tall.

I had to make like a mole to get in this hole

Sometimes half the battle is getting to where you need to be and then to see the joint that needs to be welded.

 

Structural Fabrication 1st Quarter 2012

Structural Fabrication for the Department of Water and Fish and Game

The structure in the background of this picture is a completed frame with catwalk.

These frames hold culverts in the Delta near Stockton.  We built 4 total frames.

The dimensions are 5 feet tall, 11 feet wide, 60 feet long, and weighed approx. 16,000 lbs.

The frames where made mostly using 4″x8″x1/4″ rectangular tubing and 4″x6″x1/4″ rectangular tubing.

The majority of the project was welded using NR232.  This welding wire is approved for all structural applications.

Excavator bucket repair in Santa Cruz

I repaired this “Remu” type excavator bucket for BlueIron, Inc.  They had a job in Santa Cruz so I traveled there to work on the bucket.

The blade was obviously worn,

I cut it off and replaced with a new one.

The grinders were also worn and I hardfaced using tungsten powder.

Hardfacing is the overlaying of a harder material than the parent metal to help the existing metal last longer.  There are several types of hardfacing.  Some are designed to withstand abrasion which you would use in an application where the piece was subject to constant wear from dirt, sand, or gravel, etc.  Others are designed for impact resistance which would be used in applications where the piece is used in crushing or chipping.  The product I used is designed for high wear applications, it is a very specialized type of hardfacing and provides for excellent wearability.

Repair Cracks in Front Loader Bucket

This project was off Eight Mile Road in Stockton.  Mark from Blue Iron, Inc., www.blueironinc.com, called and asked that I repair the cracks, there were several.

This was a crack around the lift pin boss

 I used an air arc, or arc gouging process to clean out the crack.  Sometimes the crack does not go all the way through the material and it is imperitive the crack is removed from the material or gouged out then welded up completely. 

Same crack repaired.

Some welders like to use the Stick welding process , SMAW, to weld these cracks up typically a rod with the 7018 designation.  This process is adequite, it provides a strong weld and when done properly the crack should not come back.  However it has one down fall and in my opinion only one, its speed.  I was able to utilize the wire welding process, FCAW, I used NR 232. 

Anothercrack in the same bucket

Crack welded up

Another view of cracks welded up.

There were a total of 12 seperate cracks with a total of about 55 – 60 lineal inches combined.  This project was completed 2 – 3 hours faster because I used the FCAW process instead of the SMAW process.