Brad Buchanan
Member
Hey folks.
I had a backblade I need for snow removal this year and the unit had a badly worn pivot plate and I decided to replace it and thought some might be interested in the process.
I have limited tools to complete the job and had to use what I have!
I laid out the job with a carbide scribe marking an X to center the 4 1/2" hole and then centerpunching it.
Then, using a compass I went from the center and marked an arc on each side for the pin holes, again centerpunching each position for the holes.
I then cut the 8 holes for the pins with a rotary broach and plenty of cutting oil (which kept freezing).
Next came the 4 1/2" center hole which I cut on a drill press with a bi-metal hole saw and again plenty of cutting oil.
The part was then cut out with a metal cutting circular saw (stock was 3/8 mild steel) and the corners trimmed on an abrasive chop saw.
After some deburring and cleanup with a flapdisk the part was welded onto the pivoting shaft with 6011 rod.
The project came out well with all parts lining up quite well.
As always all comments pro or con are welcomed.
Brad Buchanan
I had a backblade I need for snow removal this year and the unit had a badly worn pivot plate and I decided to replace it and thought some might be interested in the process.
I have limited tools to complete the job and had to use what I have!
I laid out the job with a carbide scribe marking an X to center the 4 1/2" hole and then centerpunching it.
Then, using a compass I went from the center and marked an arc on each side for the pin holes, again centerpunching each position for the holes.
I then cut the 8 holes for the pins with a rotary broach and plenty of cutting oil (which kept freezing).
Next came the 4 1/2" center hole which I cut on a drill press with a bi-metal hole saw and again plenty of cutting oil.
The part was then cut out with a metal cutting circular saw (stock was 3/8 mild steel) and the corners trimmed on an abrasive chop saw.
After some deburring and cleanup with a flapdisk the part was welded onto the pivoting shaft with 6011 rod.
The project came out well with all parts lining up quite well.
As always all comments pro or con are welcomed.
Brad Buchanan