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Author Topic: Pitch on top of blade only  (Read 317 times)

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Offline Patrick NC

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Pitch on top of blade only
« on: May 24, 2022, 06:59:31 PM »
How come pitch only sticks to the top of the blade and the bottom is clean? Is it because sawdust gets compressed between the bandwheels and the blade, or is there another reason?
Norwood HD36, Husky 372xp xtorq, 550xp mk2 , 460 rancher, Kubota l2501, Case 1845 skid steer,

Offline Magicman

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Re: Pitch on top of blade only
« Reply #1 on: May 24, 2022, 08:25:38 PM »
Yup, it gets smashed between the blade and bandwheels. 

I have never seen buildup on the bottom of a blade which led me to close the opening on the lower LubeMizer nozzle several years ago.
Knothole Sawmill, LLC     '98 Wood-Mizer LT40SuperHydraulic   WM Million BF Club Member   WM Pro Sawyer Network

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Offline terrifictimbersllc

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Re: Pitch on top of blade only
« Reply #2 on: May 24, 2022, 08:26:40 PM »
Maybe sap gets squeezed out of the wood (sawdust) and spread out onto the blade. 
DJ Hoover, Terrific Timbers LLC,  Mystic CT Woodmizer Million Board Foot Club member. 2019 LT70 Super Wide 55 Yanmar,  LogRite fetching arch, WM BMS250 sharpener/BMT250 setter.  2001 F350 7.3L PSD 6 spd manual ZF 4x4 Crew Cab Long Bed

Offline Crossroads

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Re: Pitch on top of blade only
« Reply #3 on: May 24, 2022, 08:51:04 PM »
My theory is the pitch flakes/peels off the outside as the band flexes. 
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Offline KenMac

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Re: Pitch on top of blade only
« Reply #4 on: May 24, 2022, 09:03:38 PM »
Maybe it's like a tire is only flat on the bottom?  
Sorry, Howard's devil paid me a visit, too.
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