Asplundh 80's era drum chipper floor plate.

[Ghillie]

Does anyone have the spec's for the replaceable floorplate on such a beast?

Bought one and a few of the tapered bolt heads were worn off. chipper didn't seem to feed as agressively as I think it should. Kind of feels like the wood is hitting a stop before it gets to the cutter bar.

The thickest part of the old floorplate is 3/8". I fabricated a new one, put it on and it seems low and still does not feed quite right.

I am thinking of putting another plate that is 3/16" thick under the new floorplate raising it up further.

Any naysayers?

 

[gdavis24]

Not a lot of room to raise that floor before you hit the blades.
Manual gives floor plate part num 012-0020-21 but not dimensions.
Poor feed is real easy to do with cutter knives ground to wrong angle, esp if someone tried to touch them up by hand. Ragged chipping can be the knives, or the anvil/cutter bar dull and rounded over, or wrong clearance between blade and cutter bar.

 

[Ghillie]

This picture shows a little more about what I am referring to. The floor plate needs to be raised up a bit more to keep limbs from hitting the pressure bar. Raising it will make more of a "ramp" up to the cutter bar.

Thank you for the part number, it will help me in tracking down the factory dimensions.

 

[Ghillie]

I put the 3/16" plate under the new floorplate I made and it works great. Feed is consistent, it is now acting in true "chuck n duck" fashion.

Worn floorplate will cause feed problems.

 

[dawetype]

Same experience. Your idea worked great.

Just wanted to let you know that I had the same chipper with the same problem. Knives were knew and adusted to the 1/32 inch clearance. When feeding the machine it was like you were hitting a stop.

I read your coments and visually compared the relationship of floor plate to pressure bar on my machine with your excellent pix. I concluded that a 3/16 inch shim, as you suggested ,would alleviate the "stop" and form a ramp for the material being fed into the machine.

That one alteration changed the chipper into a really excellent machine. Thanks so much for taking the time to post with such excellent material.

 

[Ghillie]

Just wanted to let you know that I had the same chipper with the same problem. Knives were knew and adusted to the 1/32 inch clearance. When feeding the machine it was like you were hitting a stop.

I read your coments and visually compared the relationship of floor plate to pressure bar on my machine with your excellent pix. I concluded that a 3/16 inch shim, as you suggested ,would alleviate the "stop" and form a ramp for the material being fed into the machine.

That one alteration changed the chipper into a really excellent machine. Thanks so much for taking the time to post with such excellent material.

Glad to help.

Sent from my DROIDX using Tapatalk