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#109683 11/12/20 10:36 AM
Joined: Dec 2017
Posts: 66
kenny_t Offline OP
Trainee
Hi. A couple of Victa blades.. why the different holes ?

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Joined: Jan 2016
Posts: 7,466
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SENIOR TECHNICIAN
Different manufacturers

Joined: Jul 2018
Posts: 2,085
Likes: 80
SENIOR TECHNICIAN
Exactly what Norm said, though technically in the early days of that style they used a different type of tension washer (the coloured one) which fits on top of the blade and in the odd shape

Bynorm still had the notch up to a few years back

Joined: Sep 2015
Posts: 2,044
Likes: 145
SENIOR TECHNICIAN & HISTORIAN
Hi kenny ,Norm and Tyler

I thought the different hole may have been a way of quickly identifying a mulcher blade that
has the sharpened edge on the opposite side to the normal blades but it looks like a design
to stop the blade bolt seizing in the blade.



Cheers
Max

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$ IMG_1832 a.jpg (104.71 KB, 35 downloads)
Joined: Feb 2006
Posts: 4,675
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SENIOR TECHNICIAN
I definitely wouldn't mix and match the different brands even if they're compatible. Any slight weight differences will magnify as the blades spin and upset the all important balance of the engine.


Ahh, if only victa had kept producing the thumblatch catcher series, they would be in better shape today!
Joined: Jul 2018
Posts: 2,085
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SENIOR TECHNICIAN
Hi Kenny, Max & MF

I was of the belief the mulcher blades were the really wide ones - though I could be wrong

In this link the differences are discussed - in the first image, you can see the old style washer

https://www.outdoorking-forum.com.au/forum/ubbthreads.php/topics/92971/victa-blade-assembly-differences.html

Joined: Sep 2015
Posts: 2,044
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SENIOR TECHNICIAN & HISTORIAN
Hi kenny ,Norm ,Tyler and Mf

The Victa wider blades are used for mulching blades but I thought the wider blades had an advantage to stay
more straight when rotating at high speed ,Rover went to this design too but Rover had them with
high lift ,high lift blades aren't generally mulching blades.

Victa uses the blade plate to push the downward flow of grass to the blades for mulching.


Cheers
Max.

Attached Images
$ $ Victa Blade 1a.jpg (150.71 KB, 26 downloads)
$ $ Victa Mulch Blade Plate.jpg (20.94 KB, 26 downloads)

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