Need to remove the blades on the shredder
SOURCE: I have a yard machinne 6.5hp chipper/shredder -
The blade(s) should have usually two bolts on them depending how many blades you have. Mine only has one blade held on with two bolts and that is only on the side that cuts the larger branches up to two inches in diameter and should be sharpened on a grinding wheel because it has a specific angle to it. The other side that chips smaller branches and twigs it a type of flailer, meaning pieces of metal just swinging around to mash up the sticks and do not need sharpening.
SOURCE: how do you rotate shredder blades on duerr m/n 678?
Interesting question --
I just picked up one of these over the weekend, and was able to get the flywheel off with minimal excitement. After removing the center bolt from the flywheel, I used a hammer to "encourage" the flywheel off the keyed shaft from the back-- through branch feed hole in the housing. It took quite some time, and I rotated the flywheel as I did it to keep it from binding up, but it eventually came off.
As an aside, would you let me know if you've found any source for parts or documentation? I'm going to attempt some repairs on the flywheel and chipper blades, but may end up wanting to replace them.
SOURCE: How do you remove the blades on a Sears 6HP
Remove the 5/16" allen cap screw on the end of the shaft. The knife assembly slides onto the crankshaft and is keyed with a woodruff key. Soak the shaft in pentrating oil overnight and try to slide it off or use more persuasive measures like tapping or a slide hammer. You'll see a big nut it's a LH thread so to remove it turn it CCW. The rest is straight forward. I can send you the owners manual if you provide an email address. It illustrates the process in detail. Ronald
This is from the Toro owners manual for SR4 euper recycler model 20058 serial number 250003464
The steps and picture are on page 18 of the manual 3352-864[1].pdf
You can enter those numbers on this page for a manual:
https://lookup3.toro.com/request/request.cfm
1. Disconnect the spark plug wire from the spark
plug. Refer to Preparing for Maintenance
2. Tip the mower onto its side with the air filter up.
3. Remove the
2 blade nuts (A)
and the
stiffener (B).
4. Remove the
blade (C).
5. Install the blade and the stiffener that you
removed in steps 3 and 4.
6. Install the blade bolts and torque them to 15 to
27 ft-lb (20 to 37 N?m).
The replacement blade part number is:
108-3762-03 (google / net search)
Thanks for choosing FixYa,
Kelly
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