Search for"chalmersindusties.com". They probably have a downloadable manual for yours. Mike

Looks like my small Troy-bilt Tomahawk discharge chute piece. Mine is only a 4 hp model. It shreds into small pieces, but my holes are larger, maybe 3/4". You can change these out by removing three longs pins. I never found the need to have a second one (mine only came with one size), but some folks might like a second. But I suspect that most folks find the starting and running of a seldom-used machine to be plenty of bother just by itself. My model is underpowered, and I wonder if substituting a discharge with smaller discharge holes would make the problem worse.

yeh i find usually the best advice is to do all you prunning a couple or so times a year in blocks and go hire a shredder machine, then you maybe can do bigger branches and hire a chipper. keep in mind no matter how much you pay the common garden type shredder is exactly that a shredder with some chipping capabilities. some gardeners over here get a bloke in with a chipper and they get lots of stuff ready and then he does the big cutting, too easy realy. they get an added bonus he takes any unchippable stuff/or gen' rubbish to the tip free. and look at the action of the machine if you are going to buy, for me i like the models that will shred fibrous plants ie.,. gingers, bananas, palm fronds etc.,. flail type shredders won't. and last but not least don't buy from a discounter like all machinery at the end of the day you get what you pay for, go talk to a specilaist store. if you go the hire path you may be able to try different models and see which suits you best. the best thing about hiring is you don't have that machine sitting there doing nought most of the year, and servicing or break downs are not your care. len Here is a link that might be useful: lens garden page

Bryan: I have a small chipper/shredder you are welcome to borrow. It may be too small for your job but you can try it out and see if it works for your needs. I'm finished with it for the season. I don't use the chipper portion because it basically seemed to grind down wood and I found it easier cut it up and either use it for firewood or toss it. The shredder portion takes branches up to about 1" in diameter. However the shredder doesn't do well with fibrous material such as giant bird of paradise leaves/branches or banana leaves/branches. I see they still sell the same make and model on-line and below is a link to it. - Mike Here is a link that might be useful: Chipper