Asplundh whisper blade replacement

mechaniccassidy

Can anyone give me details on removal/replacement/adjustment of 70's whisper chipper blades? One of my guys threw a ratchet strap thru it during cleanup and yes he is still employed!! LOL I am guessing you remove the three allen head screws to get them out. Install and adjustment is my real concern. Thanks for any help.
George Cassidy

Steve Tipton

Loosen the socket head bolts, the re install one of the bolts into the threaded hole in the retaining wedge. Screw it in fairly tight, then hit the other end of the wedge with a brass drift. This should dislodge the wedge, which you then lift out and then lift out the blade.
below each blade, you will find 2 set screws. You adust these to set the height of each blade.
Re- sharpen or replace the blades as necessary. All blades should be of equal width to ensure correct balance.
Set clearance from blade to anvil (or bed knife) to a hacksaw blade thickness, 1/32". Correct clearance of each blade is critical.

Before re-assembly, clean all surfaces and run a tap through all threads to clear out old sap etc.
Take your time and get it right, these machines are more finicky than a disc chipper.

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Heightmaster

r5cents

If I am not mistaken you also need to turn the Cutter Bar. It is the part you measure your clearance to. Usualy you can use all four edges .

newguy18

Also use never sieze on the bolts,it'll save alot of hassle for next time you change blades.

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old schooler

Eric Frei

Received an email via forum message for unregistered users from Richard Gilbert.

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