Ryobi Silent Shredder RSH2445T Questions & Answers

It's been a few years since mine died, but I seem to recall there were a few things that might cause this. One being having the bucket not quite perfectly aligned. Give it a wiggle. Perhaps also check it is switched off.

Took face plate off, put it back, must have tripped something, WILL go with lever removed from bucket and put in place. Not ideal but hey its going.

Thank you Emorphe. Next rainy day will put the bucket mechanism back together and try again.

That I would not know! I would go to the Ryobi website and ask them external link 

Several times I needed a new "adjuster plate", a part of the mulcher I regard as a consumable. Twice I was able to buy them from Bunnings, but last year I found the product was no longer supported. I cast a new "adjuster plate" but can't make any other parts.

Thank you both for your reply. I think it will be hard to find now as it is a discontinued line.

What I have found is debris drop into the bin latching tongue aperture, preventing the tongue from fully extending. The interlock switch does not get activated and the shredder won't run.

This is usually the lever on the bucket. If not clicked up fully the motor won't start. Try removing the bucket, check no debris and make sure it clicks fully into position.

The gear reduction ratio is very high. You cannot turn the blades by hand. There are two sets of planetary gears in the reduction gearbox. The rollers in the high speed set in mine disintegrated. The machine became destructively noisy, but did not stop working. It is apart now, waiting for new rollers. I presume you have tried backing the blade adjuster off. I am a retired electrician and can confirm all the interlocking and windings are equally applicable for both directions of rotation. If the shredder is not physically jamming when trying to go forwards, the fault must be electrical. The only electrical difference between forwards and reverse is at the direction selection switch and the forwards retention relay. Perhaps an insect has got into the direction switch or the retention relay, or maybe a wire has become disconnected. An inspection and perhaps a meter test is required.

Thank you David. Where do you access the relay and switches? I have not pulled that part apart. Is there also a phase shift capacitor for the motor?

I've just fixed the shredder I had. If yours is running backwards then the interlock switches are all fine. I think the direction switch is essentially just an H-bridge, you can access it by unscrewing the 4 screws on the control panel and lifting the panel out to ensure the connections are all secure. Obviously make sure it's not powered while you're poking around in there. There is a massive capacitor inside according to the diagrams I've seen, but accessing it requires completely dismantling the machine as far as I can tell and replacements cost about $90. I dunno if it's a phase shift capacitor though, motor drivers aren't my forte

Nothing special. I have some old fashioned tire levers, that I used as pry bars all my working life as an electrical fitter. They worked fine. I had a parts list and drawing, but had a mishap with my cloud storage and lost a lot of files. This picture is close enough to give you a good idea of your nemesis. external link 

Thanks David. Not having tyre levers suitable for the job, I prised a flat bladed screwdriver between the blade and the back plate and tapped on the end of the shaft with a small ball-pine hammer, and it eventually came loose. The culprit was some rust forming between the blade and the shaft (in 5 years I had never needed to remove the blade,) so after cleaning the surfaces I applied a smear of grease before re-installing.

Sorry I can't really help. Mine must be a different model. It has no green light. What I can tell you is: It only "runs" forwards. It "jogs" in reverse. (That is: it only goes in reverse when the reverse button is held pressed.)

I haven't found a replacement. My only options are: 1) Make my own. 2) Buy a new, different, shredder.

Hoping ryobi was monitoring this. Guess i wont be buying something that is not supported...Might have a chat to accc...

It sounds like it might be jammed. Try backing off the blade adjustment bolt.

backed almost right off but no different?

It is more a crusher that a shredder designed to chip branches into pieces about 2 ish cm long, Say I am doing palm fronds, the shafts are crushed so that I can put it on the garden as mulch but while the leaves are 'chewed' up to some extent they are still recognizable; Hope this is helpful

thank you very helpful

Anything too fibrous like fronds or banana leaves will end up stringy and possibly block the mechanism. Works better on drier leaves and timber - too green is not ideal.

No idea. Check out YouTube .

Dunno; have not had the need to remove it as yet... sorry

You might have to prise it off but it should just come off.. Mine came off without a problem..

Can it shred paper

I hope the remedy I found will help someone else. The problem was a faulty start capacitor 60uF 450volt ac, but to replace this I had to dismantle the shredder completely.

Remove the steel front cover . Remove debrua from blades. There is switch in there and if it get to packed with green fine wood like confer then it trips the housing switch. All works well then.

Great answer. Just tried this to fix my one that wasn't going and it now goes. Thanks!

I bought mine at Bunnings. Good value.