Pivot Pin

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towman315
MC crawler
MC crawler
Posts: 2
Joined: Mon Apr 14, 2025 10:26 am

Pivot Pin

Post by towman315 » Tue Apr 15, 2025 2:27 pm

Hi a am rebuilding the blade on my 450c does anyone know the spacing (gap) between the main frame and the pivot plate on the back of the blade should be? I have all knew bushings i welded on new wear plates where retainers go but there seems to be about a 1/2 space between blade and main frame where pivot is.

Jim B
350 crawler
350 crawler
Posts: 2442
Joined: Sun Nov 05, 2017 11:36 am
Location: western Maine

Re: Pivot Pin

Post by Jim B » Tue Apr 15, 2025 3:49 pm

Welcome to the Boards.

Just a housekeeping note. Your posts on your 450C should be on the Late Models Board. The crawlers up to the 1010 and 2010 models are on this Early Models Board. The late models starting with the 350 and 450 crawlers go on the Late Models Board. Not anything show stopping, but don't be surprised if it gets moved to the Late Models Board.

As for the gap at the center pivot of the angling frame. Is the blade tight to the pads at the ends of the angling frame? If so, you aren't going to close the center gap up. Does it appear to have major wear around the pivot bushing in the back of the blade and the plate the pivot pin is on? Could the plates you welded on out at the retainers be thicker than the old ones? Did you cut the old plate completely out and replace with the same or use overlay plates?

towman315
MC crawler
MC crawler
Posts: 2
Joined: Mon Apr 14, 2025 10:26 am

Re: Pivot Pin

Post by towman315 » Fri Apr 18, 2025 4:13 pm

Thank you for the info i will move on but ground of all old wear plates the pin was just rewelded wasn't
much wear all bushings and pins new blade and frame and cylinders and your correct the blade is sitting on new wear plates contributing to gap will gap be ok to alow wear pads to wear?

Jim B
350 crawler
350 crawler
Posts: 2442
Joined: Sun Nov 05, 2017 11:36 am
Location: western Maine

Re: Pivot Pin

Post by Jim B » Fri Apr 18, 2025 5:59 pm

The pads are going to wear where there is moving metal to metal contact. I would shim the retainers per the manual and try it. The center pin is just a pivot point, I don't think the gap will bother.

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